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Jovanović, Dragana J.

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  • Jovanović, Dragana J. (16)
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Author's Bibliography

Spherical assemblies of titania nanotubes generated through aerosol processing

Jovanović, Dragana J.; Dugandžić, Ivan; Ćirić Marjanović, Gordana; Radetić, Tamara; Ahrenkiel, Scott P.; Milošević, Olivera; Nedeljković, Jovan; Šaponjić, Zoran; Mančić, Lidija

(Elsevier, 2015)

TY  - JOUR
AU  - Jovanović, Dragana J.
AU  - Dugandžić, Ivan
AU  - Ćirić Marjanović, Gordana
AU  - Radetić, Tamara
AU  - Ahrenkiel, Scott P.
AU  - Milošević, Olivera
AU  - Nedeljković, Jovan
AU  - Šaponjić, Zoran
AU  - Mančić, Lidija
PY  - 2015
UR  - http://dais.sanu.ac.rs/123456789/3523
AB  - We report on the possibility to build hierarchically organized three-dimensional (3D) titania spherical particles having high surface-to-volume-ratio, by aerosol processing of nanotubular building blocks. Morphology and crystal structure of titania based spherical assemblies, obtained in the temperature range from 150 to 650°C, were characterized by means of scanning and transmission electron microscopy, x-ray powder diffraction and Raman spectroscopy. Initial shape of 1D building units, nanotubes, was well preserved in the spherical assemblies processed at 150 and 450°C. Processing at 650°C resulted in a collapse of the nanotubular building blocks and formation of the assemblies of irregularly shaped TiO2 nanoparticles. Structural analysis revealed several phase transitions in titania spherical assemblies in course with the temperature increase indicating possibility of in-situ phase composition adjustment during aerosol processing. © 2015 Elsevier Ltd and Techna Group S.r.l.
PB  - Elsevier
T2  - Ceramics International
T1  - Spherical assemblies of titania nanotubes generated through aerosol processing
SP  - 14754
EP  - 14759
VL  - 41
IS  - 10, Part B
DO  - 10.1016/j.ceramint.2015.07.205
ER  - 
@article{
author = "Jovanović, Dragana J. and Dugandžić, Ivan and Ćirić Marjanović, Gordana and Radetić, Tamara and Ahrenkiel, Scott P. and Milošević, Olivera and Nedeljković, Jovan and Šaponjić, Zoran and Mančić, Lidija",
year = "2015",
url = "http://dais.sanu.ac.rs/123456789/3523",
abstract = "We report on the possibility to build hierarchically organized three-dimensional (3D) titania spherical particles having high surface-to-volume-ratio, by aerosol processing of nanotubular building blocks. Morphology and crystal structure of titania based spherical assemblies, obtained in the temperature range from 150 to 650°C, were characterized by means of scanning and transmission electron microscopy, x-ray powder diffraction and Raman spectroscopy. Initial shape of 1D building units, nanotubes, was well preserved in the spherical assemblies processed at 150 and 450°C. Processing at 650°C resulted in a collapse of the nanotubular building blocks and formation of the assemblies of irregularly shaped TiO2 nanoparticles. Structural analysis revealed several phase transitions in titania spherical assemblies in course with the temperature increase indicating possibility of in-situ phase composition adjustment during aerosol processing. © 2015 Elsevier Ltd and Techna Group S.r.l.",
publisher = "Elsevier",
journal = "Ceramics International",
title = "Spherical assemblies of titania nanotubes generated through aerosol processing",
pages = "14754-14759",
volume = "41",
number = "10, Part B",
doi = "10.1016/j.ceramint.2015.07.205"
}
Jovanović, D. J., Dugandžić, I., Ćirić Marjanović, G., Radetić, T., Ahrenkiel, S. P., Milošević, O., Nedeljković, J., Šaponjić, Z.,& Mančić, L. (2015). Spherical assemblies of titania nanotubes generated through aerosol processing.
Ceramics InternationalElsevier., 41(10, Part B), 14754-14759.
https://doi.org/10.1016/j.ceramint.2015.07.205
Jovanović DJ, Dugandžić I, Ćirić Marjanović G, Radetić T, Ahrenkiel SP, Milošević O, Nedeljković J, Šaponjić Z, Mančić L. Spherical assemblies of titania nanotubes generated through aerosol processing. Ceramics International. 2015;41(10, Part B):14754-14759
Jovanović Dragana J., Dugandžić Ivan, Ćirić Marjanović Gordana, Radetić Tamara, Ahrenkiel Scott P., Milošević Olivera, Nedeljković Jovan, Šaponjić Zoran, Mančić Lidija, "Spherical assemblies of titania nanotubes generated through aerosol processing" 41, no. 10, Part B (2015):14754-14759,
https://doi.org/10.1016/j.ceramint.2015.07.205 .
1
2
2
2

Aerosol-assisted processing of hierarchically organised TiO2 nanoparticles

Mančić, Lidija; Dugandžić, Ivan; Milošević, Olivera; Jovanović, Dragana J.; Šaponjić, Zoran; Rabanal, Maria Eugenia; Gómez-Villalba, Luz Stella

(Bucks, UK : INDERSCIENCE Publishers, 2015)

TY  - JOUR
AU  - Mančić, Lidija
AU  - Dugandžić, Ivan
AU  - Milošević, Olivera
AU  - Jovanović, Dragana J.
AU  - Šaponjić, Zoran
AU  - Rabanal, Maria Eugenia
AU  - Gómez-Villalba, Luz Stella
PY  - 2015
UR  - http://dais.sanu.ac.rs/123456789/646
AB  - Hierarchically assembled TiO2 nanoparticles into larger spherical ones were obtained using aerosol-assisted processing method. Unagglomerated particles with the mean size of 440 nm were obtained from colloidal solution of TiO2 nanoparticles (~4.5 nm) using ultrasonic spray pyrolysis at 550°C. Their morphological complexity and structural polymorphism were investigated by using X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and transmission electron microscopy (TEM) coupled with selected area electron diffraction (SAED) analysis. Pronounced evolution of nanocrystalline TiO2(B) phase assembled together with the anatase building units (sized ~15 nm) in uniform submicrometric particles implicate their feasibility to be used in dye-sensitised solar cells and lithium ion batteries.
PB  - Bucks, UK : INDERSCIENCE Publishers
T2  - International Journal of Materials and Product Technology
T1  - Aerosol-assisted processing of hierarchically organised TiO2 nanoparticles
SP  - 221
EP  - 229
VL  - 50
IS  - 3-4
DO  - 10.1504/IJMPT.2015.068530
ER  - 
@article{
author = "Mančić, Lidija and Dugandžić, Ivan and Milošević, Olivera and Jovanović, Dragana J. and Šaponjić, Zoran and Rabanal, Maria Eugenia and Gómez-Villalba, Luz Stella",
year = "2015",
url = "http://dais.sanu.ac.rs/123456789/646",
abstract = "Hierarchically assembled TiO2 nanoparticles into larger spherical ones were obtained using aerosol-assisted processing method. Unagglomerated particles with the mean size of 440 nm were obtained from colloidal solution of TiO2 nanoparticles (~4.5 nm) using ultrasonic spray pyrolysis at 550°C. Their morphological complexity and structural polymorphism were investigated by using X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and transmission electron microscopy (TEM) coupled with selected area electron diffraction (SAED) analysis. Pronounced evolution of nanocrystalline TiO2(B) phase assembled together with the anatase building units (sized ~15 nm) in uniform submicrometric particles implicate their feasibility to be used in dye-sensitised solar cells and lithium ion batteries.",
publisher = "Bucks, UK : INDERSCIENCE Publishers",
journal = "International Journal of Materials and Product Technology",
title = "Aerosol-assisted processing of hierarchically organised TiO2 nanoparticles",
pages = "221-229",
volume = "50",
number = "3-4",
doi = "10.1504/IJMPT.2015.068530"
}
Mančić, L., Dugandžić, I., Milošević, O., Jovanović, D. J., Šaponjić, Z., Rabanal, M. E.,& Gómez-Villalba, L. S. (2015). Aerosol-assisted processing of hierarchically organised TiO2 nanoparticles.
International Journal of Materials and Product TechnologyBucks, UK : INDERSCIENCE Publishers., 50(3-4), 221-229.
https://doi.org/10.1504/IJMPT.2015.068530
Mančić L, Dugandžić I, Milošević O, Jovanović DJ, Šaponjić Z, Rabanal ME, Gómez-Villalba LS. Aerosol-assisted processing of hierarchically organised TiO2 nanoparticles. International Journal of Materials and Product Technology. 2015;50(3-4):221-229
Mančić Lidija, Dugandžić Ivan, Milošević Olivera, Jovanović Dragana J., Šaponjić Zoran, Rabanal Maria Eugenia, Gómez-Villalba Luz Stella, "Aerosol-assisted processing of hierarchically organised TiO2 nanoparticles" 50, no. 3-4 (2015):221-229,
https://doi.org/10.1504/IJMPT.2015.068530 .
4
4
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Aerosol-assisted processing of hierarchically organised TiO2 nanoparticles

Mančić, Lidija; Dugandžić, Ivan; Milošević, Olivera; Jovanović, Dragana J.; Šaponjić, Zoran; Rabanal, Maria Eugenia; Gómez-Villalba, Luz Stella

(Bucks, UK : INDERSCIENCE Publishers, 2015)

TY  - JOUR
AU  - Mančić, Lidija
AU  - Dugandžić, Ivan
AU  - Milošević, Olivera
AU  - Jovanović, Dragana J.
AU  - Šaponjić, Zoran
AU  - Rabanal, Maria Eugenia
AU  - Gómez-Villalba, Luz Stella
PY  - 2015
UR  - http://dais.sanu.ac.rs/123456789/645
AB  - Hierarchically assembled TiO2 nanoparticles into larger spherical ones were obtained using aerosol-assisted processing method. Unagglomerated particles with the mean size of 440 nm were obtained from colloidal solution of TiO2 nanoparticles (~4.5 nm) using ultrasonic spray pyrolysis at 550°C. Their morphological complexity and structural polymorphism were investigated by using X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and transmission electron microscopy (TEM) coupled with selected area electron diffraction (SAED) analysis. Pronounced evolution of nanocrystalline TiO2(B) phase assembled together with the anatase building units (sized ~15 nm) in uniform submicrometric particles implicate their feasibility to be used in dye-sensitised solar cells and lithium ion batteries.
PB  - Bucks, UK : INDERSCIENCE Publishers
T2  - International Journal of Materials and Product Technology
T1  - Aerosol-assisted processing of hierarchically organised TiO2 nanoparticles
SP  - 221
EP  - 229
DO  - 10.1504/IJMPT.2015.068530
ER  - 
@article{
author = "Mančić, Lidija and Dugandžić, Ivan and Milošević, Olivera and Jovanović, Dragana J. and Šaponjić, Zoran and Rabanal, Maria Eugenia and Gómez-Villalba, Luz Stella",
year = "2015",
url = "http://dais.sanu.ac.rs/123456789/645",
abstract = "Hierarchically assembled TiO2 nanoparticles into larger spherical ones were obtained using aerosol-assisted processing method. Unagglomerated particles with the mean size of 440 nm were obtained from colloidal solution of TiO2 nanoparticles (~4.5 nm) using ultrasonic spray pyrolysis at 550°C. Their morphological complexity and structural polymorphism were investigated by using X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and transmission electron microscopy (TEM) coupled with selected area electron diffraction (SAED) analysis. Pronounced evolution of nanocrystalline TiO2(B) phase assembled together with the anatase building units (sized ~15 nm) in uniform submicrometric particles implicate their feasibility to be used in dye-sensitised solar cells and lithium ion batteries.",
publisher = "Bucks, UK : INDERSCIENCE Publishers",
journal = "International Journal of Materials and Product Technology",
title = "Aerosol-assisted processing of hierarchically organised TiO2 nanoparticles",
pages = "221-229",
doi = "10.1504/IJMPT.2015.068530"
}
Mančić, L., Dugandžić, I., Milošević, O., Jovanović, D. J., Šaponjić, Z., Rabanal, M. E.,& Gómez-Villalba, L. S. (2015). Aerosol-assisted processing of hierarchically organised TiO2 nanoparticles.
International Journal of Materials and Product TechnologyBucks, UK : INDERSCIENCE Publishers., 221-229.
https://doi.org/10.1504/IJMPT.2015.068530
Mančić L, Dugandžić I, Milošević O, Jovanović DJ, Šaponjić Z, Rabanal ME, Gómez-Villalba LS. Aerosol-assisted processing of hierarchically organised TiO2 nanoparticles. International Journal of Materials and Product Technology. 2015;:221-229
Mančić Lidija, Dugandžić Ivan, Milošević Olivera, Jovanović Dragana J., Šaponjić Zoran, Rabanal Maria Eugenia, Gómez-Villalba Luz Stella, "Aerosol-assisted processing of hierarchically organised TiO2 nanoparticles" (2015):221-229,
https://doi.org/10.1504/IJMPT.2015.068530 .
4
4
4

Ultrasonic Processing of Hierarchically Organized TiO2 Functional Nanomaterials

Dugandžić, Ivan; Jovanović, Dragana J.; Mančić, Lidija; Šaponjić, Zoran; Nedeljković, Jovan; Milošević, Olivera

(Belgrade : Serbian Ceramic Society, 2014)

TY  - CONF
AU  - Dugandžić, Ivan
AU  - Jovanović, Dragana J.
AU  - Mančić, Lidija
AU  - Šaponjić, Zoran
AU  - Nedeljković, Jovan
AU  - Milošević, Olivera
PY  - 2014
UR  - http://dais.sanu.ac.rs/123456789/596
AB  - Hierarchically organized functional nanomaterials are of interest for potential use in electrochemical, catalytic and gas-sensing applications due to their unique structural organization defined on different length scales. Here we present the application of the aerosol processing route in generation of hierarchically organized nanostructured TiO2 particles. Particles are obtained by the thermal decomposition of aerosol generated by atomization of colloidal TiO2 solution with a low-intensity ultrasound generator operating at the high frequency of 1.7 MHz. By a proper choice of the precursors type and concentration, as well as processing parameters (temperature of aerosol decomposition and the residence time of droplet/particle), fine control over both the submicron- and nanometer-length scales of spherically structured TiO2 was achieved. The median diameter and the crystallite size of titania particles were found to be tunable from 350 to 450 nm and from 2.5 to 50 nm, respectively. Moreover, it was shown that the structural complexity of the particles synthesized at the lower processing temperatures might be further extended by their surface sensitization with several bidentate ligands. The results obtained demonstrate advantages of ultrasonic spray pyrolysis route in synthesis of hierarchically organized functional nanomaterials.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / III Serbian Ceramic Society Conference, 29th September - 1st October, Belgrade, 2014
T1  - Ultrasonic Processing of Hierarchically Organized TiO2 Functional Nanomaterials
SP  - 61
EP  - 61
ER  - 
@conference{
author = "Dugandžić, Ivan and Jovanović, Dragana J. and Mančić, Lidija and Šaponjić, Zoran and Nedeljković, Jovan and Milošević, Olivera",
year = "2014",
url = "http://dais.sanu.ac.rs/123456789/596",
abstract = "Hierarchically organized functional nanomaterials are of interest for potential use in electrochemical, catalytic and gas-sensing applications due to their unique structural organization defined on different length scales. Here we present the application of the aerosol processing route in generation of hierarchically organized nanostructured TiO2 particles. Particles are obtained by the thermal decomposition of aerosol generated by atomization of colloidal TiO2 solution with a low-intensity ultrasound generator operating at the high frequency of 1.7 MHz. By a proper choice of the precursors type and concentration, as well as processing parameters (temperature of aerosol decomposition and the residence time of droplet/particle), fine control over both the submicron- and nanometer-length scales of spherically structured TiO2 was achieved. The median diameter and the crystallite size of titania particles were found to be tunable from 350 to 450 nm and from 2.5 to 50 nm, respectively. Moreover, it was shown that the structural complexity of the particles synthesized at the lower processing temperatures might be further extended by their surface sensitization with several bidentate ligands. The results obtained demonstrate advantages of ultrasonic spray pyrolysis route in synthesis of hierarchically organized functional nanomaterials.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / III Serbian Ceramic Society Conference, 29th September - 1st October, Belgrade, 2014",
title = "Ultrasonic Processing of Hierarchically Organized TiO2 Functional Nanomaterials",
pages = "61-61"
}
Dugandžić, I., Jovanović, D. J., Mančić, L., Šaponjić, Z., Nedeljković, J.,& Milošević, O. (2014). Ultrasonic Processing of Hierarchically Organized TiO2 Functional Nanomaterials.
Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / III Serbian Ceramic Society Conference, 29th September - 1st October, Belgrade, 2014Belgrade : Serbian Ceramic Society., 61-61.
Dugandžić I, Jovanović DJ, Mančić L, Šaponjić Z, Nedeljković J, Milošević O. Ultrasonic Processing of Hierarchically Organized TiO2 Functional Nanomaterials. Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / III Serbian Ceramic Society Conference, 29th September - 1st October, Belgrade, 2014. 2014;:61-61
Dugandžić Ivan, Jovanović Dragana J., Mančić Lidija, Šaponjić Zoran, Nedeljković Jovan, Milošević Olivera, "Ultrasonic Processing of Hierarchically Organized TiO2 Functional Nanomaterials" (2014):61-61

Ultrasonic spray pyrolysis of surface modified TiO2 nanoparticles with dopamine

Dugandžić, Ivan; Jovanović, Dragana J.; Mančić, Lidija; Milošević, Olivera; Ahrenkiel, Scott P.; Šaponjić, Zoran; Nedeljković, Jovan

(2013)

TY  - JOUR
AU  - Dugandžić, Ivan
AU  - Jovanović, Dragana J.
AU  - Mančić, Lidija
AU  - Milošević, Olivera
AU  - Ahrenkiel, Scott P.
AU  - Šaponjić, Zoran
AU  - Nedeljković, Jovan
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/344
AB  - Spherical, submicronic TiO2 powder particles were prepared in the low temperature process of ultrasonic spray pyrolysis (150 °C) by using as a precursor aqueous colloidal solutions consisting of surface modified 45 Å TiO2 nanoparticles with dopamine. Detailed structural and morphological characterization of colored submicronic TiO2 spheres was performed by X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), laser particle size analysis and FTIR techniques. Also, optical characterization of both dopamine-modified TiO2 precursor nanoparticles and submicronic TiO2 powder particles was performed using absorption and diffuse reflectance spectroscopy, respectively. A significant decrease of the effective band gap (1.9 eV) in dopamine-modified TiO2 nanoparticles compared to the band gap of bulk material (3.2 eV) was preserved after formation of submicronic TiO2 powder particles in the process of ultrasonic spray pyrolysis under mild experimental conditions. Due to the nanostructured nature, surface-modified assemblage of TiO2 nanoparticles preserved unique ability to absorb light through charge transfer complex by photoexcitation of the ligand-to-TiO2 band, conventionally associated with extremely small TiO2 nanoparticles (d < 20 nm) whose surface Ti atoms, owing to the large curvature, have penta-coordinate geometry.
T2  - Materials Chemistry and Physics
T1  - Ultrasonic spray pyrolysis of surface modified TiO2 nanoparticles with dopamine
SP  - 233
EP  - 239
VL  - 143
IS  - 1
DO  - 10.1016/j.matchemphys.2013.08.058
ER  - 
@article{
author = "Dugandžić, Ivan and Jovanović, Dragana J. and Mančić, Lidija and Milošević, Olivera and Ahrenkiel, Scott P. and Šaponjić, Zoran and Nedeljković, Jovan",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/344",
abstract = "Spherical, submicronic TiO2 powder particles were prepared in the low temperature process of ultrasonic spray pyrolysis (150 °C) by using as a precursor aqueous colloidal solutions consisting of surface modified 45 Å TiO2 nanoparticles with dopamine. Detailed structural and morphological characterization of colored submicronic TiO2 spheres was performed by X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), laser particle size analysis and FTIR techniques. Also, optical characterization of both dopamine-modified TiO2 precursor nanoparticles and submicronic TiO2 powder particles was performed using absorption and diffuse reflectance spectroscopy, respectively. A significant decrease of the effective band gap (1.9 eV) in dopamine-modified TiO2 nanoparticles compared to the band gap of bulk material (3.2 eV) was preserved after formation of submicronic TiO2 powder particles in the process of ultrasonic spray pyrolysis under mild experimental conditions. Due to the nanostructured nature, surface-modified assemblage of TiO2 nanoparticles preserved unique ability to absorb light through charge transfer complex by photoexcitation of the ligand-to-TiO2 band, conventionally associated with extremely small TiO2 nanoparticles (d < 20 nm) whose surface Ti atoms, owing to the large curvature, have penta-coordinate geometry.",
journal = "Materials Chemistry and Physics",
title = "Ultrasonic spray pyrolysis of surface modified TiO2 nanoparticles with dopamine",
pages = "233-239",
volume = "143",
number = "1",
doi = "10.1016/j.matchemphys.2013.08.058"
}
Dugandžić, I., Jovanović, D. J., Mančić, L., Milošević, O., Ahrenkiel, S. P., Šaponjić, Z.,& Nedeljković, J. (2013). Ultrasonic spray pyrolysis of surface modified TiO2 nanoparticles with dopamine.
Materials Chemistry and Physics, 143(1), 233-239.
https://doi.org/10.1016/j.matchemphys.2013.08.058
Dugandžić I, Jovanović DJ, Mančić L, Milošević O, Ahrenkiel SP, Šaponjić Z, Nedeljković J. Ultrasonic spray pyrolysis of surface modified TiO2 nanoparticles with dopamine. Materials Chemistry and Physics. 2013;143(1):233-239
Dugandžić Ivan, Jovanović Dragana J., Mančić Lidija, Milošević Olivera, Ahrenkiel Scott P., Šaponjić Zoran, Nedeljković Jovan, "Ultrasonic spray pyrolysis of surface modified TiO2 nanoparticles with dopamine" 143, no. 1 (2013):233-239,
https://doi.org/10.1016/j.matchemphys.2013.08.058 .
1
26
27
28

Theoretical and experimental analysis of droplet-to-particle formation during aerosol processing of colloidal TiO2 nanoparticles

Dugandžić, Ivan; Jovanović, Dragana J.; Mančić, Lidija; Šaponjić, Zoran; Nedeljković, Jovan; Milošević, Olivera

(Sevilla : FEMS, 2013)

TY  - CONF
AU  - Dugandžić, Ivan
AU  - Jovanović, Dragana J.
AU  - Mančić, Lidija
AU  - Šaponjić, Zoran
AU  - Nedeljković, Jovan
AU  - Milošević, Olivera
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/819
AB  - Theoretical and experimental investigation of the particle formation during processing of colloidal nanoparticles in aerosol laminar flow reactor is presented. Simple analytical model taking into consideration all important process parameters, such as physico-chemical properties of the colloidal solution, initial droplet size, residence time and temperature, is developed in order to predict the final particle morphology. The formation of spherical, hierarchically organized, ~450 nm sized TiO2 particles has been followed at 150°C starting from colloidal TiO2 nanoparticle (~4.5 nm) solution as precursor. It has been shown that the final particle morphology is formed in the evaporation/drying stage through the self assembly processes of colloidal nanoparticles collision and aggregation. The dimensionless numbers Re, Nu, Pr and Bi, were used in modeling to briefly describe the transport properties in dispersed system and heat and mass transport phenomena. The predicted particle size and morphology is confirmed by using scanning electron microscopy (SEM/FESEM) and laser diffraction particle size analyzer (LPS). Additionally, closer morphological investigation is performed with transmission electron microscopy (TEM) and nanotomography. Correspondingly, theoretical analysis under this study presents a simple procedure to predict the final morphology and mean particle size during aerosol processing.
PB  - Sevilla : FEMS
C3  - EUROMAT 2013: European Congress and Exhibition on Advanced Materials and Processes, Sevilla 8-13, October, 2013: CD Book of Abstracts
T1  - Theoretical and experimental analysis of droplet-to-particle formation during aerosol processing of colloidal TiO2 nanoparticles
ER  - 
@conference{
author = "Dugandžić, Ivan and Jovanović, Dragana J. and Mančić, Lidija and Šaponjić, Zoran and Nedeljković, Jovan and Milošević, Olivera",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/819",
abstract = "Theoretical and experimental investigation of the particle formation during processing of colloidal nanoparticles in aerosol laminar flow reactor is presented. Simple analytical model taking into consideration all important process parameters, such as physico-chemical properties of the colloidal solution, initial droplet size, residence time and temperature, is developed in order to predict the final particle morphology. The formation of spherical, hierarchically organized, ~450 nm sized TiO2 particles has been followed at 150°C starting from colloidal TiO2 nanoparticle (~4.5 nm) solution as precursor. It has been shown that the final particle morphology is formed in the evaporation/drying stage through the self assembly processes of colloidal nanoparticles collision and aggregation. The dimensionless numbers Re, Nu, Pr and Bi, were used in modeling to briefly describe the transport properties in dispersed system and heat and mass transport phenomena. The predicted particle size and morphology is confirmed by using scanning electron microscopy (SEM/FESEM) and laser diffraction particle size analyzer (LPS). Additionally, closer morphological investigation is performed with transmission electron microscopy (TEM) and nanotomography. Correspondingly, theoretical analysis under this study presents a simple procedure to predict the final morphology and mean particle size during aerosol processing.",
publisher = "Sevilla : FEMS",
journal = "EUROMAT 2013: European Congress and Exhibition on Advanced Materials and Processes, Sevilla 8-13, October, 2013: CD Book of Abstracts",
title = "Theoretical and experimental analysis of droplet-to-particle formation during aerosol processing of colloidal TiO2 nanoparticles"
}
Dugandžić, I., Jovanović, D. J., Mančić, L., Šaponjić, Z., Nedeljković, J.,& Milošević, O. (2013). Theoretical and experimental analysis of droplet-to-particle formation during aerosol processing of colloidal TiO2 nanoparticles.
EUROMAT 2013: European Congress and Exhibition on Advanced Materials and Processes, Sevilla 8-13, October, 2013: CD Book of AbstractsSevilla : FEMS..
Dugandžić I, Jovanović DJ, Mančić L, Šaponjić Z, Nedeljković J, Milošević O. Theoretical and experimental analysis of droplet-to-particle formation during aerosol processing of colloidal TiO2 nanoparticles. EUROMAT 2013: European Congress and Exhibition on Advanced Materials and Processes, Sevilla 8-13, October, 2013: CD Book of Abstracts. 2013;
Dugandžić Ivan, Jovanović Dragana J., Mančić Lidija, Šaponjić Zoran, Nedeljković Jovan, Milošević Olivera, "Theoretical and experimental analysis of droplet-to-particle formation during aerosol processing of colloidal TiO2 nanoparticles" (2013)

Aerosol processing of hierarchically organized TiO2 based nano-particles

Dugandžić, Ivan; Jovanović, Dragana J.; Mančić, Lidija; Šaponjić, Zoran; Nedeljković, Jovan; Milošević, Olivera

(Sevilla : FEMS, 2013)

TY  - CONF
AU  - Dugandžić, Ivan
AU  - Jovanović, Dragana J.
AU  - Mančić, Lidija
AU  - Šaponjić, Zoran
AU  - Nedeljković, Jovan
AU  - Milošević, Olivera
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/820
AB  - The low-temperature (T=150oC) aerosol route, representing a feasible bottom-up technique for nano materials processing in disperse system, was applied for the synthesis of spherical, non-agglomerated, hierarchically organized titanium dioxide (TiO2) nano-particles. The diverse levels of structural, morphological and functional complexity were explored simply by means of appropriate selection of different colloidal precursor solutions of either nearly spherical nano-particles[1] (a), surface modified nano-particles with dopamine (b) or nano-tubes (c). The detailed structural and morphological investigations were done by X-ray powder diffraction (XRPD), laser particle size (LPS) analysis, scanning and field emission electron microscopy (SEM/FESEM) and transmission electron microscopy (TEM). Spherical, submicronic, soft and grained TiO2 particles with the mean size from ~350 to ~450nm and with clustered inner structure, composed of primary nanocrystals (<10nm), were obtained. The optical properties and surface structure were analyzed by UV-Vis diffusive reflectance (UV-Vis DRS) and Fourier transform infrared (FTIR) spectroscopy. The obtained results offer a general route for the synthesis of self-assemblies with tunable morphology and optical properties. A significant decrease of the effective band gap values (1.7 to 1.9eV) for the processed TiO2 nanoparticles, compared to the band gap of bulk material (3.2eV), was achieved. Such hierarchical nano-structured powders, are expected to have potential application not only in the field of photovoltaic technologies[3] but also in various aspects of photo catalysis.[4]

References:
[1] Dugandžić I.M., Jovanović D.J., Mančić L.T., Zheng N., Ahrenkiel S.P., Milošević O.B., Šaponjić Z.V. and Nedeljković J.M., 2012 Surface modification of submicronic TiO2 particles prepared by ultrasonic spray pyrolysis for visible light absorption, J. Nanopart. Res., 14 (10) 1157 (DOI10.1007/s11051-012-1157-1)
[3] Zhang Q., Myers D., Lan J., Jenekhe S.A. and Cao G., 2012 Applications of light scattering in dyesensitized solar cells, Phys. Chem. Chem. Phys., 14, 14982-14998
[4] Liu B., Nakata K., Sakai M., Saito H., Ochiai T., Murakami T., Takagi K. and Fujishima A., 2012 Hierarchical TiO2 spherical nanostructures with tunable pore size, pore volume and specific surface area: facile preparation and high-photocatalytic performance Catal. Sci. Technol., 2, 1933-1939
PB  - Sevilla : FEMS
C3  - EUROMAT 2013: European Congress and Exhibition on Advanced Materials and Processes, Sevilla 8-13, October, 2013: CD Book of Abstracts
T1  - Aerosol processing of hierarchically organized TiO2 based nano-particles
ER  - 
@conference{
author = "Dugandžić, Ivan and Jovanović, Dragana J. and Mančić, Lidija and Šaponjić, Zoran and Nedeljković, Jovan and Milošević, Olivera",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/820",
abstract = "The low-temperature (T=150oC) aerosol route, representing a feasible bottom-up technique for nano materials processing in disperse system, was applied for the synthesis of spherical, non-agglomerated, hierarchically organized titanium dioxide (TiO2) nano-particles. The diverse levels of structural, morphological and functional complexity were explored simply by means of appropriate selection of different colloidal precursor solutions of either nearly spherical nano-particles[1] (a), surface modified nano-particles with dopamine (b) or nano-tubes (c). The detailed structural and morphological investigations were done by X-ray powder diffraction (XRPD), laser particle size (LPS) analysis, scanning and field emission electron microscopy (SEM/FESEM) and transmission electron microscopy (TEM). Spherical, submicronic, soft and grained TiO2 particles with the mean size from ~350 to ~450nm and with clustered inner structure, composed of primary nanocrystals (<10nm), were obtained. The optical properties and surface structure were analyzed by UV-Vis diffusive reflectance (UV-Vis DRS) and Fourier transform infrared (FTIR) spectroscopy. The obtained results offer a general route for the synthesis of self-assemblies with tunable morphology and optical properties. A significant decrease of the effective band gap values (1.7 to 1.9eV) for the processed TiO2 nanoparticles, compared to the band gap of bulk material (3.2eV), was achieved. Such hierarchical nano-structured powders, are expected to have potential application not only in the field of photovoltaic technologies[3] but also in various aspects of photo catalysis.[4]

References:
[1] Dugandžić I.M., Jovanović D.J., Mančić L.T., Zheng N., Ahrenkiel S.P., Milošević O.B., Šaponjić Z.V. and Nedeljković J.M., 2012 Surface modification of submicronic TiO2 particles prepared by ultrasonic spray pyrolysis for visible light absorption, J. Nanopart. Res., 14 (10) 1157 (DOI10.1007/s11051-012-1157-1)
[3] Zhang Q., Myers D., Lan J., Jenekhe S.A. and Cao G., 2012 Applications of light scattering in dyesensitized solar cells, Phys. Chem. Chem. Phys., 14, 14982-14998
[4] Liu B., Nakata K., Sakai M., Saito H., Ochiai T., Murakami T., Takagi K. and Fujishima A., 2012 Hierarchical TiO2 spherical nanostructures with tunable pore size, pore volume and specific surface area: facile preparation and high-photocatalytic performance Catal. Sci. Technol., 2, 1933-1939",
publisher = "Sevilla : FEMS",
journal = "EUROMAT 2013: European Congress and Exhibition on Advanced Materials and Processes, Sevilla 8-13, October, 2013: CD Book of Abstracts",
title = "Aerosol processing of hierarchically organized TiO2 based nano-particles"
}
Dugandžić, I., Jovanović, D. J., Mančić, L., Šaponjić, Z., Nedeljković, J.,& Milošević, O. (2013). Aerosol processing of hierarchically organized TiO2 based nano-particles.
EUROMAT 2013: European Congress and Exhibition on Advanced Materials and Processes, Sevilla 8-13, October, 2013: CD Book of AbstractsSevilla : FEMS..
Dugandžić I, Jovanović DJ, Mančić L, Šaponjić Z, Nedeljković J, Milošević O. Aerosol processing of hierarchically organized TiO2 based nano-particles. EUROMAT 2013: European Congress and Exhibition on Advanced Materials and Processes, Sevilla 8-13, October, 2013: CD Book of Abstracts. 2013;
Dugandžić Ivan, Jovanović Dragana J., Mančić Lidija, Šaponjić Zoran, Nedeljković Jovan, Milošević Olivera, "Aerosol processing of hierarchically organized TiO2 based nano-particles" (2013)

Aerosol-assisted synthesis of hierarchically organized titania and titanates nanostructures

Dugandžić, Ivan; Jovanović, Dragana J.; Mančić, Lidija; Šaponjić, Zoran; Nedeljković, Jovan; Milošević, Olivera

(2013)

TY  - CONF
AU  - Dugandžić, Ivan
AU  - Jovanović, Dragana J.
AU  - Mančić, Lidija
AU  - Šaponjić, Zoran
AU  - Nedeljković, Jovan
AU  - Milošević, Olivera
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/150
AB  - Poster presented at the conference Advanced Ceramics and Application II – Serbian Ceramic Society, Belgrade, September 30 – October 1, 2013
T1  - Aerosol-assisted synthesis of hierarchically organized titania and titanates nanostructures
ER  - 
@conference{
author = "Dugandžić, Ivan and Jovanović, Dragana J. and Mančić, Lidija and Šaponjić, Zoran and Nedeljković, Jovan and Milošević, Olivera",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/150",
abstract = "Poster presented at the conference Advanced Ceramics and Application II – Serbian Ceramic Society, Belgrade, September 30 – October 1, 2013",
title = "Aerosol-assisted synthesis of hierarchically organized titania and titanates nanostructures"
}
Dugandžić, I., Jovanović, D. J., Mančić, L., Šaponjić, Z., Nedeljković, J.,& Milošević, O. (2013). Aerosol-assisted synthesis of hierarchically organized titania and titanates nanostructures.
.
Dugandžić I, Jovanović DJ, Mančić L, Šaponjić Z, Nedeljković J, Milošević O. Aerosol-assisted synthesis of hierarchically organized titania and titanates nanostructures. 2013;
Dugandžić Ivan, Jovanović Dragana J., Mančić Lidija, Šaponjić Zoran, Nedeljković Jovan, Milošević Olivera, "Aerosol-assisted synthesis of hierarchically organized titania and titanates nanostructures" (2013)

Aerosol-assisted synthesis of hierarchically organized titania and titanates nanostructures

Dugandžić, Ivan; Jovanović, Dragana J.; Mančić, Lidija; Šaponjić, Zoran; Nedeljković, Jovan; Milošević, Olivera

(Belgrade : Serbian Ceramic Society, 2013)

TY  - CONF
AU  - Dugandžić, Ivan
AU  - Jovanović, Dragana J.
AU  - Mančić, Lidija
AU  - Šaponjić, Zoran
AU  - Nedeljković, Jovan
AU  - Milošević, Olivera
PY  - 2013
UR  - http://dais.sanu.ac.rs/123456789/424
AB  - The aerosol route, representing a feasible bottom-up technique for nanomaterials processing in disperse system, was applied for the low-temperature (T=150 oC) synthesis of spherical, nonagglomerated, hierarchically organized titania and titanates nanostructures. The diverse levels of structural, morphological and functional complexity were explored by using appropriate colloidal precursors comprising either spherical nanoparticles or nanotubes. In both cases, spherical, grained, submicronic sized particles with the average diameter of ~350 nm for titania and ~ 450 nm for titanates were obtained. The detailed structural and morphological investigations were done according to X-ray powder diffraction (XRPD), scanning and field emission electron microscopy (SEM/FESEM), particle size distribution (PSD) and transmission electron microscopy (TEM) results. Results revealed that particles have clustered inner structure and are composed from primary nanounits in form of nanoparticles or nanotubes. Such hierarchically organized particles are expected to have potential application not only in the field of photovoltaics but also in various branches of photocatalysis.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade
T1  - Aerosol-assisted synthesis of hierarchically organized titania and titanates nanostructures
SP  - 46
EP  - 47
ER  - 
@conference{
author = "Dugandžić, Ivan and Jovanović, Dragana J. and Mančić, Lidija and Šaponjić, Zoran and Nedeljković, Jovan and Milošević, Olivera",
year = "2013",
url = "http://dais.sanu.ac.rs/123456789/424",
abstract = "The aerosol route, representing a feasible bottom-up technique for nanomaterials processing in disperse system, was applied for the low-temperature (T=150 oC) synthesis of spherical, nonagglomerated, hierarchically organized titania and titanates nanostructures. The diverse levels of structural, morphological and functional complexity were explored by using appropriate colloidal precursors comprising either spherical nanoparticles or nanotubes. In both cases, spherical, grained, submicronic sized particles with the average diameter of ~350 nm for titania and ~ 450 nm for titanates were obtained. The detailed structural and morphological investigations were done according to X-ray powder diffraction (XRPD), scanning and field emission electron microscopy (SEM/FESEM), particle size distribution (PSD) and transmission electron microscopy (TEM) results. Results revealed that particles have clustered inner structure and are composed from primary nanounits in form of nanoparticles or nanotubes. Such hierarchically organized particles are expected to have potential application not only in the field of photovoltaics but also in various branches of photocatalysis.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade",
title = "Aerosol-assisted synthesis of hierarchically organized titania and titanates nanostructures",
pages = "46-47"
}
Dugandžić, I., Jovanović, D. J., Mančić, L., Šaponjić, Z., Nedeljković, J.,& Milošević, O. (2013). Aerosol-assisted synthesis of hierarchically organized titania and titanates nanostructures.
Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, BelgradeBelgrade : Serbian Ceramic Society., 46-47.
Dugandžić I, Jovanović DJ, Mančić L, Šaponjić Z, Nedeljković J, Milošević O. Aerosol-assisted synthesis of hierarchically organized titania and titanates nanostructures. Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts : II Serbian Ceramic Society Conference, Sep 30th-Oct 1st, 2013, Belgrade. 2013;:46-47
Dugandžić Ivan, Jovanović Dragana J., Mančić Lidija, Šaponjić Zoran, Nedeljković Jovan, Milošević Olivera, "Aerosol-assisted synthesis of hierarchically organized titania and titanates nanostructures" (2013):46-47

Aerosol-assisted processing of Dopamine-TiO2 colloidal solution

Dugandžić, Ivan; Jovanović, Dragana J.; Mančić, Lidija; Šaponjić, Zoran; Milošević, Olivera; Nedeljković, Jovan

(Belgrade, 2012)

TY  - CONF
AU  - Dugandžić, Ivan
AU  - Jovanović, Dragana J.
AU  - Mančić, Lidija
AU  - Šaponjić, Zoran
AU  - Milošević, Olivera
AU  - Nedeljković, Jovan
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/87
AB  - Poster presented at the conference Advanced Ceramics and Application I - Serbian Ceramic Society, Belgrade May 10-11, 2012
PB  - Belgrade
T1  - Aerosol-assisted processing of Dopamine-TiO2 colloidal solution
ER  - 
@conference{
author = "Dugandžić, Ivan and Jovanović, Dragana J. and Mančić, Lidija and Šaponjić, Zoran and Milošević, Olivera and Nedeljković, Jovan",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/87",
abstract = "Poster presented at the conference Advanced Ceramics and Application I - Serbian Ceramic Society, Belgrade May 10-11, 2012",
publisher = "Belgrade",
title = "Aerosol-assisted processing of Dopamine-TiO2 colloidal solution"
}
Dugandžić, I., Jovanović, D. J., Mančić, L., Šaponjić, Z., Milošević, O.,& Nedeljković, J. (2012). Aerosol-assisted processing of Dopamine-TiO2 colloidal solution.
Belgrade..
Dugandžić I, Jovanović DJ, Mančić L, Šaponjić Z, Milošević O, Nedeljković J. Aerosol-assisted processing of Dopamine-TiO2 colloidal solution. 2012;
Dugandžić Ivan, Jovanović Dragana J., Mančić Lidija, Šaponjić Zoran, Milošević Olivera, Nedeljković Jovan, "Aerosol-assisted processing of Dopamine-TiO2 colloidal solution" (2012)

The optical properties of dopamine-TiO2 submicronic sized particles

Dugandžić, Ivan; Jovanović, Dragana J.; Mančić, Lidija; Šaponjić, Zoran; Nedeljković, Jovan; Milošević, Olivera

(Belgrade : Agencija FORMAT, 2012)

TY  - CONF
AU  - Dugandžić, Ivan
AU  - Jovanović, Dragana J.
AU  - Mančić, Lidija
AU  - Šaponjić, Zoran
AU  - Nedeljković, Jovan
AU  - Milošević, Olivera
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/501
AB  - It is highly desirable to induce significant red-shift in the optical absorption edges of TiO2 phases so that this class of low-cost and environmentally friendly materials can be used as effective optical absorbing materials in photovoltaic cells. This work focuses on studying the formation of charge transfer (CT) complex, between TiO2 surface and dopamine as surface modifier, that induced significant red-shift of optical absorption in comparison to unmodified TiO2 particles. For that purpose, the submicronic sized TiO2 particles were synthesized at 150 0C by means of ultrasonic spray pyrolysis route using two different approaches for powder processing differing on how the precursor solution was made. In the first one, the colloidal source solution of unmodified TiO2
nanoparticles was used as precursor solution and the particles were additionally modified by dopamine after completing the synthesis procedure. In the second approach, the dopamine modification of source colloidal TiO2 nanoparticles preceded to powder processing. From Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM) images it can be concluded that both groups of dopamine modified submicronic spheres have diameter of approximately 430 nm and contain small primary building units (Figure 1a and 1b). The surface structure and optical properties of resulting particles were analyzed using Fourier Transform Infrared (FT-IR) and UV-Vis spectroscopy investigations. The FT-IR measurements show that dopamine successfully formed CT complex at TiO2 surface. Based on the significant red shift on diffusive reflectance spectra (Figure 1c) it was estimated the effective band-gap value for all observed samples as to be ~1.3 eV.
PB  - Belgrade : Agencija FORMAT
C3  - ICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of Abstract
T1  - The optical properties of dopamine-TiO2 submicronic sized particles
SP  - 23
EP  - 23
ER  - 
@conference{
author = "Dugandžić, Ivan and Jovanović, Dragana J. and Mančić, Lidija and Šaponjić, Zoran and Nedeljković, Jovan and Milošević, Olivera",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/501",
abstract = "It is highly desirable to induce significant red-shift in the optical absorption edges of TiO2 phases so that this class of low-cost and environmentally friendly materials can be used as effective optical absorbing materials in photovoltaic cells. This work focuses on studying the formation of charge transfer (CT) complex, between TiO2 surface and dopamine as surface modifier, that induced significant red-shift of optical absorption in comparison to unmodified TiO2 particles. For that purpose, the submicronic sized TiO2 particles were synthesized at 150 0C by means of ultrasonic spray pyrolysis route using two different approaches for powder processing differing on how the precursor solution was made. In the first one, the colloidal source solution of unmodified TiO2
nanoparticles was used as precursor solution and the particles were additionally modified by dopamine after completing the synthesis procedure. In the second approach, the dopamine modification of source colloidal TiO2 nanoparticles preceded to powder processing. From Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM) images it can be concluded that both groups of dopamine modified submicronic spheres have diameter of approximately 430 nm and contain small primary building units (Figure 1a and 1b). The surface structure and optical properties of resulting particles were analyzed using Fourier Transform Infrared (FT-IR) and UV-Vis spectroscopy investigations. The FT-IR measurements show that dopamine successfully formed CT complex at TiO2 surface. Based on the significant red shift on diffusive reflectance spectra (Figure 1c) it was estimated the effective band-gap value for all observed samples as to be ~1.3 eV.",
publisher = "Belgrade : Agencija FORMAT",
journal = "ICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of Abstract",
title = "The optical properties of dopamine-TiO2 submicronic sized particles",
pages = "23-23"
}
Dugandžić, I., Jovanović, D. J., Mančić, L., Šaponjić, Z., Nedeljković, J.,& Milošević, O. (2012). The optical properties of dopamine-TiO2 submicronic sized particles.
ICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of AbstractBelgrade : Agencija FORMAT., 23-23.
Dugandžić I, Jovanović DJ, Mančić L, Šaponjić Z, Nedeljković J, Milošević O. The optical properties of dopamine-TiO2 submicronic sized particles. ICOM 2012: The 3rd International Conference on the Physics of Optical Materials and Devices: Book of Abstract. 2012;:23-23
Dugandžić Ivan, Jovanović Dragana J., Mančić Lidija, Šaponjić Zoran, Nedeljković Jovan, Milošević Olivera, "The optical properties of dopamine-TiO2 submicronic sized particles" (2012):23-23

Aerosol-assisted Processing of Dopamine-TiO2 Colloidal Solution

Dugandžić, Ivan; Jovanović, Dragana J.; Mančić, Lidija; Šaponjić, Zoran; Milošević, Olivera; Nedeljković, Jovan

(Belgrade : Serbian Ceramic Society, 2012)

TY  - CONF
AU  - Dugandžić, Ivan
AU  - Jovanović, Dragana J.
AU  - Mančić, Lidija
AU  - Šaponjić, Zoran
AU  - Milošević, Olivera
AU  - Nedeljković, Jovan
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/500
AB  - Set of colloidal TiO2 nanoparticles solutions (TiO2 NPs) were surface modified with the different quantities of dopamine (DA) and then are used as precursors for the synthesis of DA modified submicronic TiO2 particles (DA-TiO2 SPs). Low temperature (150 oC) aerosol-assisted route (spray drying) is used for the generation of the un-agglomerated spherical particles with the mean size of 430 nm that are composited from much smaller crystalline sub-units. Detailed structural and morphological characterization of DA-TiO2 NPs and SPs were performed by X-ray powder diffraction (XRPD) analysis, scanning and transmission electron microscopy (SEM/TEM) and laser particle size (LPS) analysis. Particles surface structure and optical properties were followed using FT-IR and UV-Vis spectroscopy. Observed optical characteristics of both DA-TiO2 NPs and DA-TiO2 SPs expose narrowing of effective band gap for the same value of 1.3 eV implicating the preservation of colloidal nanoparticles characteristics in submicronic powders.
PB  - Belgrade : Serbian Ceramic Society
C3  - The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts
T1  - Aerosol-assisted Processing of Dopamine-TiO2 Colloidal Solution
SP  - 27
EP  - 27
ER  - 
@conference{
author = "Dugandžić, Ivan and Jovanović, Dragana J. and Mančić, Lidija and Šaponjić, Zoran and Milošević, Olivera and Nedeljković, Jovan",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/500",
abstract = "Set of colloidal TiO2 nanoparticles solutions (TiO2 NPs) were surface modified with the different quantities of dopamine (DA) and then are used as precursors for the synthesis of DA modified submicronic TiO2 particles (DA-TiO2 SPs). Low temperature (150 oC) aerosol-assisted route (spray drying) is used for the generation of the un-agglomerated spherical particles with the mean size of 430 nm that are composited from much smaller crystalline sub-units. Detailed structural and morphological characterization of DA-TiO2 NPs and SPs were performed by X-ray powder diffraction (XRPD) analysis, scanning and transmission electron microscopy (SEM/TEM) and laser particle size (LPS) analysis. Particles surface structure and optical properties were followed using FT-IR and UV-Vis spectroscopy. Observed optical characteristics of both DA-TiO2 NPs and DA-TiO2 SPs expose narrowing of effective band gap for the same value of 1.3 eV implicating the preservation of colloidal nanoparticles characteristics in submicronic powders.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts",
title = "Aerosol-assisted Processing of Dopamine-TiO2 Colloidal Solution",
pages = "27-27"
}
Dugandžić, I., Jovanović, D. J., Mančić, L., Šaponjić, Z., Milošević, O.,& Nedeljković, J. (2012). Aerosol-assisted Processing of Dopamine-TiO2 Colloidal Solution.
The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of AbstractsBelgrade : Serbian Ceramic Society., 27-27.
Dugandžić I, Jovanović DJ, Mančić L, Šaponjić Z, Milošević O, Nedeljković J. Aerosol-assisted Processing of Dopamine-TiO2 Colloidal Solution. The First Serbian Ceramic Society Conference "Advanced Ceramics and Application" May 10-11, 2012: Program and the Book of Abstracts. 2012;:27-27
Dugandžić Ivan, Jovanović Dragana J., Mančić Lidija, Šaponjić Zoran, Milošević Olivera, Nedeljković Jovan, "Aerosol-assisted Processing of Dopamine-TiO2 Colloidal Solution" (2012):27-27

The optical properties of Dopamine-TiO2 submicronic sized particles

Dugandžić, Ivan; Jovanović, Dragana J.; Mančić, Lidija; Šaponjić, Zoran; Nedeljković, Jovan

(2012)

TY  - CONF
AU  - Dugandžić, Ivan
AU  - Jovanović, Dragana J.
AU  - Mančić, Lidija
AU  - Šaponjić, Zoran
AU  - Nedeljković, Jovan
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/137
AB  - Poster presented at the Third International Conference on the Physics of Optical Materials and Devices (ICOM 2012), September 3-6, Belgrade, Serbia
T1  - The optical properties of Dopamine-TiO2 submicronic sized particles
ER  - 
@conference{
author = "Dugandžić, Ivan and Jovanović, Dragana J. and Mančić, Lidija and Šaponjić, Zoran and Nedeljković, Jovan",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/137",
abstract = "Poster presented at the Third International Conference on the Physics of Optical Materials and Devices (ICOM 2012), September 3-6, Belgrade, Serbia",
title = "The optical properties of Dopamine-TiO2 submicronic sized particles"
}
Dugandžić, I., Jovanović, D. J., Mančić, L., Šaponjić, Z.,& Nedeljković, J. (2012). The optical properties of Dopamine-TiO2 submicronic sized particles.
.
Dugandžić I, Jovanović DJ, Mančić L, Šaponjić Z, Nedeljković J. The optical properties of Dopamine-TiO2 submicronic sized particles. 2012;
Dugandžić Ivan, Jovanović Dragana J., Mančić Lidija, Šaponjić Zoran, Nedeljković Jovan, "The optical properties of Dopamine-TiO2 submicronic sized particles" (2012)

Surface modification of submicronic TiO2 particles prepared by ultrasonic spray pyrolysis for visible light absorption

Dugandžić, Ivan; Jovanović, Dragana J.; Mančić, Lidija; Zheng, Nan; Ahrenkiel, Scott P.; Milošević, Olivera; Šaponjić, Zoran; Nedeljković, Jovan

(Amsterdam : Springer Netherlands, 2012)

TY  - JOUR
AU  - Dugandžić, Ivan
AU  - Jovanović, Dragana J.
AU  - Mančić, Lidija
AU  - Zheng, Nan
AU  - Ahrenkiel, Scott P.
AU  - Milošević, Olivera
AU  - Šaponjić, Zoran
AU  - Nedeljković, Jovan
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/464
AB  - Spherical, submicronic TiO2 assemblage with high specific surface area and controllable phase composition was prepared in the process of ultrasonic spray drying/pyrolysis in a wide temperature range (150–800 °C) by using as a precursor aqueous colloidal solution consisting of TiO2 nanoparticles (4.5 nm). Submicronic, soft and grained spherical TiO2 particles (d = 370–500 nm) comprising clustered nanocrystals (<10 nm) were obtained at low processing temperature, while particle densification, intensive growth of the clustered primary units and anatase-to-rutile transformation (~30 wt%) were observed at the higher temperatures. Detailed structural and morphological characterisation were performed by X-ray powder diffraction, scanning and field emission electron microscopy, transmission electron microscopy, and laser particle size analysis. Moreover, the surface modification of TiO2 particles through the formation of charge-transfer (CT) complex was achieved with different ligands: ascorbic acid, dopamine, catechol, 2,3-dihydroxynaphthalene, and anthrarobin. Optical properties of the surface-modified TiO2 particles were studied by using diffuse reflection spectroscopy. The binding structure between the surface titanium atoms and different ligands was determined by using Fourier transform infrared spectroscopy. The formation of CT complexes induced significant red shift of optical absorption in comparison to unmodified TiO2 particles.
PB  - Amsterdam : Springer Netherlands
T2  - Journal of Nanoparticle Research
T1  - Surface modification of submicronic TiO2 particles prepared by ultrasonic spray pyrolysis for visible light absorption
SP  - 1157
VL  - 14
DO  - 10.1007/s11051-012-1157-1
ER  - 
@article{
author = "Dugandžić, Ivan and Jovanović, Dragana J. and Mančić, Lidija and Zheng, Nan and Ahrenkiel, Scott P. and Milošević, Olivera and Šaponjić, Zoran and Nedeljković, Jovan",
year = "2012",
url = "http://dais.sanu.ac.rs/123456789/464",
abstract = "Spherical, submicronic TiO2 assemblage with high specific surface area and controllable phase composition was prepared in the process of ultrasonic spray drying/pyrolysis in a wide temperature range (150–800 °C) by using as a precursor aqueous colloidal solution consisting of TiO2 nanoparticles (4.5 nm). Submicronic, soft and grained spherical TiO2 particles (d = 370–500 nm) comprising clustered nanocrystals (<10 nm) were obtained at low processing temperature, while particle densification, intensive growth of the clustered primary units and anatase-to-rutile transformation (~30 wt%) were observed at the higher temperatures. Detailed structural and morphological characterisation were performed by X-ray powder diffraction, scanning and field emission electron microscopy, transmission electron microscopy, and laser particle size analysis. Moreover, the surface modification of TiO2 particles through the formation of charge-transfer (CT) complex was achieved with different ligands: ascorbic acid, dopamine, catechol, 2,3-dihydroxynaphthalene, and anthrarobin. Optical properties of the surface-modified TiO2 particles were studied by using diffuse reflection spectroscopy. The binding structure between the surface titanium atoms and different ligands was determined by using Fourier transform infrared spectroscopy. The formation of CT complexes induced significant red shift of optical absorption in comparison to unmodified TiO2 particles.",
publisher = "Amsterdam : Springer Netherlands",
journal = "Journal of Nanoparticle Research",
title = "Surface modification of submicronic TiO2 particles prepared by ultrasonic spray pyrolysis for visible light absorption",
pages = "1157",
volume = "14",
doi = "10.1007/s11051-012-1157-1"
}
Dugandžić, I., Jovanović, D. J., Mančić, L., Zheng, N., Ahrenkiel, S. P., Milošević, O., Šaponjić, Z.,& Nedeljković, J. (2012). Surface modification of submicronic TiO2 particles prepared by ultrasonic spray pyrolysis for visible light absorption.
Journal of Nanoparticle ResearchAmsterdam : Springer Netherlands., 14, 1157.
https://doi.org/10.1007/s11051-012-1157-1
Dugandžić I, Jovanović DJ, Mančić L, Zheng N, Ahrenkiel SP, Milošević O, Šaponjić Z, Nedeljković J. Surface modification of submicronic TiO2 particles prepared by ultrasonic spray pyrolysis for visible light absorption. Journal of Nanoparticle Research. 2012;14:1157
Dugandžić Ivan, Jovanović Dragana J., Mančić Lidija, Zheng Nan, Ahrenkiel Scott P., Milošević Olivera, Šaponjić Zoran, Nedeljković Jovan, "Surface modification of submicronic TiO2 particles prepared by ultrasonic spray pyrolysis for visible light absorption" 14 (2012):1157,
https://doi.org/10.1007/s11051-012-1157-1 .
15
15
17

Aerosol-assisted processing of colloidal TiO2nanoparticles

Dugandžić, Ivan; Mančić, Lidija; Jovanović, Dragana J.; Šaponjić, Zoran; Milošević, Olivera

(2011)

TY  - CONF
AU  - Dugandžić, Ivan
AU  - Mančić, Lidija
AU  - Jovanović, Dragana J.
AU  - Šaponjić, Zoran
AU  - Milošević, Olivera
PY  - 2011
UR  - http://dais.sanu.ac.rs/123456789/153
AB  - Poster presented at the International Symposium on Advanced Complex Inorganic Nanomaterials (ACIN 2011), September 11-14, 2011 - Namur, Belgium
T1  - Aerosol-assisted processing of colloidal TiO2nanoparticles
ER  - 
@conference{
author = "Dugandžić, Ivan and Mančić, Lidija and Jovanović, Dragana J. and Šaponjić, Zoran and Milošević, Olivera",
year = "2011",
url = "http://dais.sanu.ac.rs/123456789/153",
abstract = "Poster presented at the International Symposium on Advanced Complex Inorganic Nanomaterials (ACIN 2011), September 11-14, 2011 - Namur, Belgium",
title = "Aerosol-assisted processing of colloidal TiO2nanoparticles"
}
Dugandžić, I., Mančić, L., Jovanović, D. J., Šaponjić, Z.,& Milošević, O. (2011). Aerosol-assisted processing of colloidal TiO2nanoparticles.
.
Dugandžić I, Mančić L, Jovanović DJ, Šaponjić Z, Milošević O. Aerosol-assisted processing of colloidal TiO2nanoparticles. 2011;
Dugandžić Ivan, Mančić Lidija, Jovanović Dragana J., Šaponjić Zoran, Milošević Olivera, "Aerosol-assisted processing of colloidal TiO2nanoparticles" (2011)

Aerosol-assisted low-temperature processing of colloidal TiO2 nanoparticles: two different manners for improving the optical properties

Dugandžić, Ivan; Jovanović, Dragana J.; Mančić, Lidija; Šaponjić, Zoran; Milošević, Olivera; Nedeljković, Jovan

(Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, 2011)

TY  - CONF
AU  - Dugandžić, Ivan
AU  - Jovanović, Dragana J.
AU  - Mančić, Lidija
AU  - Šaponjić, Zoran
AU  - Milošević, Olivera
AU  - Nedeljković, Jovan
PY  - 2011
UR  - http://dais.sanu.ac.rs/123456789/691
AB  - In order to preserve unique properties of TiO2 nanoparticles towards their surface modification, two different approaches of low temperature aerosol-assisted processing were performed. Both were based on colloid precursor atomization and subsequent spray drying at T=150 oC in a hot wall reactor. In the first case, pure TiO2 colloid precursor solution was atomized and produced submicronic particles are subsequently modified, while in the second one atomization of already modified colloid precursor solution were done. In both cases the TiO2 surface modification was achieved with 30 % of dopamine. Powders crystallinity and phase composition were studied by X-ray powder difraction (XRPD), while detailed powders morphological characterization was followed using scanning and transmission electron microscopy (SEM and TEM). Optical properties of the surface modified TiO2 particles were investigated using reflection spectroscopy while the binding structure between dopamine and the surface titanium atoms was investigated by FTIR spectroscopy.
PB  - Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts
C3  - Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia
T1  - Aerosol-assisted low-temperature processing of colloidal TiO2 nanoparticles: two different manners for improving the optical properties
SP  - 29
EP  - 29
ER  - 
@conference{
author = "Dugandžić, Ivan and Jovanović, Dragana J. and Mančić, Lidija and Šaponjić, Zoran and Milošević, Olivera and Nedeljković, Jovan",
year = "2011",
url = "http://dais.sanu.ac.rs/123456789/691",
abstract = "In order to preserve unique properties of TiO2 nanoparticles towards their surface modification, two different approaches of low temperature aerosol-assisted processing were performed. Both were based on colloid precursor atomization and subsequent spray drying at T=150 oC in a hot wall reactor. In the first case, pure TiO2 colloid precursor solution was atomized and produced submicronic particles are subsequently modified, while in the second one atomization of already modified colloid precursor solution were done. In both cases the TiO2 surface modification was achieved with 30 % of dopamine. Powders crystallinity and phase composition were studied by X-ray powder difraction (XRPD), while detailed powders morphological characterization was followed using scanning and transmission electron microscopy (SEM and TEM). Optical properties of the surface modified TiO2 particles were investigated using reflection spectroscopy while the binding structure between dopamine and the surface titanium atoms was investigated by FTIR spectroscopy.",
publisher = "Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts",
journal = "Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia",
title = "Aerosol-assisted low-temperature processing of colloidal TiO2 nanoparticles: two different manners for improving the optical properties",
pages = "29-29"
}
Dugandžić, I., Jovanović, D. J., Mančić, L., Šaponjić, Z., Milošević, O.,& Nedeljković, J. (2011). Aerosol-assisted low-temperature processing of colloidal TiO2 nanoparticles: two different manners for improving the optical properties.
Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, SerbiaBelgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts., 29-29.
Dugandžić I, Jovanović DJ, Mančić L, Šaponjić Z, Milošević O, Nedeljković J. Aerosol-assisted low-temperature processing of colloidal TiO2 nanoparticles: two different manners for improving the optical properties. Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia. 2011;:29-29
Dugandžić Ivan, Jovanović Dragana J., Mančić Lidija, Šaponjić Zoran, Milošević Olivera, Nedeljković Jovan, "Aerosol-assisted low-temperature processing of colloidal TiO2 nanoparticles: two different manners for improving the optical properties" (2011):29-29