TY  - JOUR
AU  - Vujančević, Jelena
AU  - Bjelajac, Anđelika
AU  - Veltruska, Katerina
AU  - Matolin, Vladimir
AU  - Siketić, Zdravko
AU  - Provatas, Georgios
AU  - Jakšić, Milko
AU  - Stan, George
AU  - Socol, Gabriel
AU  - Mihailescu, Ion
AU  - Pavlović, Vladimir B.
AU  - Janaćkovic, Đorđe
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13160
AB  - Pure Ti films deposited by radio-frequency magnetron sputtering on FTO glass were anodized to fabricate TiO2 nanotubes (NTs) arrays. The TiO2 NTs/FTO samples were sintered at 450, 550 and 630°C, in ambient air. The thermal treatment did not influence the crystal phase composition, preserving in all cases the anatase single phase. As expected, the crystalline anatase quality improved with the annealing temperature. Nevertheless, slight differences in nanotubular morphology, such as the appearance of grains inside the walls, were observed in the case of the sample sintered at 630°C. Chemical analysis by X-ray Photoelectron Spectroscopy of annealed samples revealed the presence of Sn inside TiO2 NTs, due to diffusion of Sn from the substrate to TiO2. For the substrate was used FTO glass whose top layer consists of SnO2 doped with F. Rutherford Backscattering Spectrometry and Time-of-Flight Elastic Recoil Detection Analysis were carried out to study the elemental depth profile of the films. It was found that the temperature of sintering controls the Sn diffusion inside TiO2 film. Sn atoms diffuse towards the TiO2 NTs surface for the samples annealed at 450 and 550°C. The diffusion is however hindered in the case of the heat treatment at 630°C. Besides, the Ti diffusion into the SnO2 underlayer was observed, together with the formation of TiO2/SnO2 interfaces. One then expected but not a great difference in absorption between samples, since all contained anatase phase, as confirmed by Diffuse Reflectance Spectroscopy. A higher amount of Sn was however detected for the sample annealed at 550°C, which accounts for a slight red absorption shift. The importance of controlling the annealing parameters of the anodized TiO2/FTO structures was highlighted through the formation of TiO2-SnO2 interfaces and the Sn insertion from FTO, which can play an essential role in increasing the photoperformances of TiO2 NTs/FTO based structures of photovoltaic cells.
PB  - ETRAN
T2  - Science of Sintering
T1  - TiO2 nanotubes film/FTO glass interface: Thermal treatment effects
SP  - 235
EP  - 248
VL  - 54
IS  - 2
DO  - 10.2298/SOS2202235V
UR  - https://hdl.handle.net/21.15107/rcub_dais_13160
ER  - 

@article{
author = "Vujančević, Jelena and Bjelajac, Anđelika and Veltruska, Katerina and Matolin, Vladimir and Siketić, Zdravko and Provatas, Georgios and Jakšić, Milko and Stan, George and Socol, Gabriel and Mihailescu, Ion and Pavlović, Vladimir B. and Janaćkovic, Đorđe",
year = "2022",
abstract = "Pure Ti films deposited by radio-frequency magnetron sputtering on FTO glass were anodized to fabricate TiO2 nanotubes (NTs) arrays. The TiO2 NTs/FTO samples were sintered at 450, 550 and 630°C, in ambient air. The thermal treatment did not influence the crystal phase composition, preserving in all cases the anatase single phase. As expected, the crystalline anatase quality improved with the annealing temperature. Nevertheless, slight differences in nanotubular morphology, such as the appearance of grains inside the walls, were observed in the case of the sample sintered at 630°C. Chemical analysis by X-ray Photoelectron Spectroscopy of annealed samples revealed the presence of Sn inside TiO2 NTs, due to diffusion of Sn from the substrate to TiO2. For the substrate was used FTO glass whose top layer consists of SnO2 doped with F. Rutherford Backscattering Spectrometry and Time-of-Flight Elastic Recoil Detection Analysis were carried out to study the elemental depth profile of the films. It was found that the temperature of sintering controls the Sn diffusion inside TiO2 film. Sn atoms diffuse towards the TiO2 NTs surface for the samples annealed at 450 and 550°C. The diffusion is however hindered in the case of the heat treatment at 630°C. Besides, the Ti diffusion into the SnO2 underlayer was observed, together with the formation of TiO2/SnO2 interfaces. One then expected but not a great difference in absorption between samples, since all contained anatase phase, as confirmed by Diffuse Reflectance Spectroscopy. A higher amount of Sn was however detected for the sample annealed at 550°C, which accounts for a slight red absorption shift. The importance of controlling the annealing parameters of the anodized TiO2/FTO structures was highlighted through the formation of TiO2-SnO2 interfaces and the Sn insertion from FTO, which can play an essential role in increasing the photoperformances of TiO2 NTs/FTO based structures of photovoltaic cells.",
publisher = "ETRAN",
journal = "Science of Sintering",
title = "TiO2 nanotubes film/FTO glass interface: Thermal treatment effects",
pages = "235-248",
volume = "54",
number = "2",
doi = "10.2298/SOS2202235V",
url = "https://hdl.handle.net/21.15107/rcub_dais_13160"
}

Vujančević, J., Bjelajac, A., Veltruska, K., Matolin, V., Siketić, Z., Provatas, G., Jakšić, M., Stan, G., Socol, G., Mihailescu, I., Pavlović, V. B.,& Janaćkovic, Đ.. (2022). TiO2 nanotubes film/FTO glass interface: Thermal treatment effects. in Science of Sintering
ETRAN., 54(2), 235-248.
https://doi.org/10.2298/SOS2202235V
https://hdl.handle.net/21.15107/rcub_dais_13160

Vujančević J, Bjelajac A, Veltruska K, Matolin V, Siketić Z, Provatas G, Jakšić M, Stan G, Socol G, Mihailescu I, Pavlović VB, Janaćkovic Đ. TiO2 nanotubes film/FTO glass interface: Thermal treatment effects. in Science of Sintering. 2022;54(2):235-248.
doi:10.2298/SOS2202235V
https://hdl.handle.net/21.15107/rcub_dais_13160 .

Vujančević, Jelena, Bjelajac, Anđelika, Veltruska, Katerina, Matolin, Vladimir, Siketić, Zdravko, Provatas, Georgios, Jakšić, Milko, Stan, George, Socol, Gabriel, Mihailescu, Ion, Pavlović, Vladimir B., Janaćkovic, Đorđe, "TiO2 nanotubes film/FTO glass interface: Thermal treatment effects" in Science of Sintering, 54, no. 2 (2022):235-248,
https://doi.org/10.2298/SOS2202235V .,
https://hdl.handle.net/21.15107/rcub_dais_13160 .

TY  - CONF
AU  - Vujančević, Jelena
AU  - Bjelajac, Anđelika
AU  - Horváth, Endre
AU  - Forró, Laszlo
AU  - Pavlović, Vladimir B.
AU  - Janaćković, Đorđe
PY  - 2022
UR  - https://dais.sanu.ac.rs/123456789/13597
AB  - The negative consequences of the modern world are environmental pollution. To decrease it, a lot of research is focused on finding solution for its remediation. Photoactive materials have ability to utilize solar energy for the degradation of organic and inorganic pollutants. Among different photoactive material TiO2 has advantages due to its non-toxicity, chemical stability and corrosion resistance. The aim of this study was to investigate the synergetic effect of nitrogen incorporation into crystal structure of TiO2 and deposition of CdS onto amelioration of the photocatalytic degradation of methylen orange compared to the pristine TiO2. For that purpose TiO2 nanotubes were obtained by anodization of titanium foil in HF containing electrolyte. To achieve crystal structure and at the same time to introduce nitrogen in TiO2, the samples were annealed in ammonia atmosphere at 450 °C, for different time of annealing. The highest amount of nitrogen was achieved for the shortest time of annealing (30 min). Beside that, it was observed that the highest level of interstitial nitrogen was also achieved for the shortest time of annealing. Further, CdS quantum dots (QDs) were deposited on the nitrogen doped TiO2 nanotubes via an ex-situ method (using binding reagent). According to the FESEM micrographs, a partial agglomeration of CdS QDs on some domaines on top of the nanotubes was observed. By performing the DRS, the improvement of the optical response after nitrogen doping and deposition of CdS was demonstrated. The sample with the highest amount of total nitrogen and interstitial nitrogen in combination with deposition CdS QDs exhibited the highest photocatalytic efficiency.
PB  - Belgrade : Materials Research Society of Serbia
C3  - Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022
T1  - Photocatalytic activity of N-TiO2 nanotubes decorated with CdS QD
SP  - 140
EP  - 140
UR  - https://hdl.handle.net/21.15107/rcub_dais_13597
ER  - 

@conference{
author = "Vujančević, Jelena and Bjelajac, Anđelika and Horváth, Endre and Forró, Laszlo and Pavlović, Vladimir B. and Janaćković, Đorđe",
year = "2022",
abstract = "The negative consequences of the modern world are environmental pollution. To decrease it, a lot of research is focused on finding solution for its remediation. Photoactive materials have ability to utilize solar energy for the degradation of organic and inorganic pollutants. Among different photoactive material TiO2 has advantages due to its non-toxicity, chemical stability and corrosion resistance. The aim of this study was to investigate the synergetic effect of nitrogen incorporation into crystal structure of TiO2 and deposition of CdS onto amelioration of the photocatalytic degradation of methylen orange compared to the pristine TiO2. For that purpose TiO2 nanotubes were obtained by anodization of titanium foil in HF containing electrolyte. To achieve crystal structure and at the same time to introduce nitrogen in TiO2, the samples were annealed in ammonia atmosphere at 450 °C, for different time of annealing. The highest amount of nitrogen was achieved for the shortest time of annealing (30 min). Beside that, it was observed that the highest level of interstitial nitrogen was also achieved for the shortest time of annealing. Further, CdS quantum dots (QDs) were deposited on the nitrogen doped TiO2 nanotubes via an ex-situ method (using binding reagent). According to the FESEM micrographs, a partial agglomeration of CdS QDs on some domaines on top of the nanotubes was observed. By performing the DRS, the improvement of the optical response after nitrogen doping and deposition of CdS was demonstrated. The sample with the highest amount of total nitrogen and interstitial nitrogen in combination with deposition CdS QDs exhibited the highest photocatalytic efficiency.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022",
title = "Photocatalytic activity of N-TiO2 nanotubes decorated with CdS QD",
pages = "140-140",
url = "https://hdl.handle.net/21.15107/rcub_dais_13597"
}

Vujančević, J., Bjelajac, A., Horváth, E., Forró, L., Pavlović, V. B.,& Janaćković, Đ.. (2022). Photocatalytic activity of N-TiO2 nanotubes decorated with CdS QD. in Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022
Belgrade : Materials Research Society of Serbia., 140-140.
https://hdl.handle.net/21.15107/rcub_dais_13597

Vujančević J, Bjelajac A, Horváth E, Forró L, Pavlović VB, Janaćković Đ. Photocatalytic activity of N-TiO2 nanotubes decorated with CdS QD. in Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022. 2022;:140-140.
https://hdl.handle.net/21.15107/rcub_dais_13597 .

Vujančević, Jelena, Bjelajac, Anđelika, Horváth, Endre, Forró, Laszlo, Pavlović, Vladimir B., Janaćković, Đorđe, "Photocatalytic activity of N-TiO2 nanotubes decorated with CdS QD" in Program and The Book of abstracts / Twenty-third Annual Conference YUCOMAT 2022 & Twelfth World Round Table Conference on Sintering XII WRTCS 2022, Herceg Novi, Montenegro, August 29 - September 2, 2022 (2022):140-140,
https://hdl.handle.net/21.15107/rcub_dais_13597 .

TY  - JOUR
AU  - Bjelajac, Anđelika
AU  - Petrović, Rada
AU  - Vujančević, Jelena
AU  - Veltruska, Katerina
AU  - Matolin, Vladimir
AU  - Siketić, Zdravko
AU  - Provatas, George
AU  - Jakšić, Milko
AU  - Stan, George E.
AU  - Socol, Gabriel
AU  - Mihailescu, Ion N.
AU  - Janaćković, Đorđe
PY  - 2020
UR  - http://www.sciencedirect.com/science/article/pii/S0022369719328525
UR  - https://dais.sanu.ac.rs/123456789/9540
AB  - We fabricated Sn-doped TiO2 nanotubular film via annealing of anodized TiO2 nanotubes grown on F–SnO2 (FTO) glass. Annealing was carried out at 500 °C in ambient air. Anatase crystal structure was achieved with no change in nanotubular morphology in respect to as-anodized amorphous TiO2 nanotubes. The X-ray photoelectron spectroscopy analysis revealed Sn on the surface of TiO2 film, following the thermal treatment, probably caused by the diffusion from FTO glass. Depth profile examination of the film chemical composition was conducted by elastic recoil detection analysis, which showed that in addition to the diffusion of Sn from FTO, diffusion of Ti to FTO concurrently occurred. Thus, a higher concentration of Sn was found at the bottom of the tubes, while a lower concentration was present on the tubes’ surface top. This explains the improved optical response revealed by a diffuse reflectance spectroscopy. The absorption enhancement demonstrated that Sn-doped TiO2 film was efficient in the degradation of methyl orange dye under visible light.
PB  - Elsevier
T2  - Journal of Physics and Chemistry of Solids
T1  - Sn-doped TiO2 nanotubular thin film for photocatalytic degradation of methyl orange dye
SP  - 109609
VL  - 147
DO  - 10.1016/j.jpcs.2020.109609
UR  - https://hdl.handle.net/21.15107/rcub_dais_9540
ER  - 

@article{
author = "Bjelajac, Anđelika and Petrović, Rada and Vujančević, Jelena and Veltruska, Katerina and Matolin, Vladimir and Siketić, Zdravko and Provatas, George and Jakšić, Milko and Stan, George E. and Socol, Gabriel and Mihailescu, Ion N. and Janaćković, Đorđe",
year = "2020",
abstract = "We fabricated Sn-doped TiO2 nanotubular film via annealing of anodized TiO2 nanotubes grown on F–SnO2 (FTO) glass. Annealing was carried out at 500 °C in ambient air. Anatase crystal structure was achieved with no change in nanotubular morphology in respect to as-anodized amorphous TiO2 nanotubes. The X-ray photoelectron spectroscopy analysis revealed Sn on the surface of TiO2 film, following the thermal treatment, probably caused by the diffusion from FTO glass. Depth profile examination of the film chemical composition was conducted by elastic recoil detection analysis, which showed that in addition to the diffusion of Sn from FTO, diffusion of Ti to FTO concurrently occurred. Thus, a higher concentration of Sn was found at the bottom of the tubes, while a lower concentration was present on the tubes’ surface top. This explains the improved optical response revealed by a diffuse reflectance spectroscopy. The absorption enhancement demonstrated that Sn-doped TiO2 film was efficient in the degradation of methyl orange dye under visible light.",
publisher = "Elsevier",
journal = "Journal of Physics and Chemistry of Solids",
title = "Sn-doped TiO2 nanotubular thin film for photocatalytic degradation of methyl orange dye",
pages = "109609",
volume = "147",
doi = "10.1016/j.jpcs.2020.109609",
url = "https://hdl.handle.net/21.15107/rcub_dais_9540"
}

Bjelajac, A., Petrović, R., Vujančević, J., Veltruska, K., Matolin, V., Siketić, Z., Provatas, G., Jakšić, M., Stan, G. E., Socol, G., Mihailescu, I. N.,& Janaćković, Đ.. (2020). Sn-doped TiO2 nanotubular thin film for photocatalytic degradation of methyl orange dye. in Journal of Physics and Chemistry of Solids
Elsevier., 147, 109609.
https://doi.org/10.1016/j.jpcs.2020.109609
https://hdl.handle.net/21.15107/rcub_dais_9540

Bjelajac A, Petrović R, Vujančević J, Veltruska K, Matolin V, Siketić Z, Provatas G, Jakšić M, Stan GE, Socol G, Mihailescu IN, Janaćković Đ. Sn-doped TiO2 nanotubular thin film for photocatalytic degradation of methyl orange dye. in Journal of Physics and Chemistry of Solids. 2020;147:109609.
doi:10.1016/j.jpcs.2020.109609
https://hdl.handle.net/21.15107/rcub_dais_9540 .

Bjelajac, Anđelika, Petrović, Rada, Vujančević, Jelena, Veltruska, Katerina, Matolin, Vladimir, Siketić, Zdravko, Provatas, George, Jakšić, Milko, Stan, George E., Socol, Gabriel, Mihailescu, Ion N., Janaćković, Đorđe, "Sn-doped TiO2 nanotubular thin film for photocatalytic degradation of methyl orange dye" in Journal of Physics and Chemistry of Solids, 147 (2020):109609,
https://doi.org/10.1016/j.jpcs.2020.109609 .,
https://hdl.handle.net/21.15107/rcub_dais_9540 .

TY  - CONF
AU  - Vujančević, Jelena
AU  - Bjelajac, Anđelika
AU  - Provatas, Georgios
AU  - Siketić, Zdravko
AU  - Jakšić, Milko
AU  - Pavlović, Vladimir B.
AU  - Janaćković, Đorđe
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/6985
AB  - Different semiconductors have been studied as photoanode material for solar cells. Among them, TiO2 has been shown to be the best material due to its chemical stability and good charge transport capability. It is usually deposited onto FTO glass (F-SnO2), and then heated at high temperature in order to obtain inter-crystalline electric contact for improving electron conductivity. The focus of this research was chemical analysis of the TiO2 nanotubes (NTs) obtained by anodization of titanium film on FTO glass using NH4F in ethylene glycol electrolyte. There are only few studies suggesting that the electrolyte is a source of N dopant in TiO2, but also Sn diffusion from FTO support was reported. This study aims to show the chemical distribution of elements of interest along the nanotubes depth. For that purpose the time-of-flight elastic recoil detection analysis (ToF-ERDA) and Rutherford backscattering (RBS) methods were used as complementary techniques for chemical analysis of both light, such is N, and heavy elements, such is Sn. The TiO2 NTs films were annealed at different temperatures (450– 630 °C) and the impact of the heating temperature on the chemical distribution was followed.
PB  - Novi Sad : Faculty of Technology
C3  - Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad
T1  - ToF-ERDA/RBS analysis of annealed TiO2 nanotubes grown onto FTO glass
SP  - 132
EP  - 132
UR  - https://hdl.handle.net/21.15107/rcub_dais_6985
ER  - 

@conference{
author = "Vujančević, Jelena and Bjelajac, Anđelika and Provatas, Georgios and Siketić, Zdravko and Jakšić, Milko and Pavlović, Vladimir B. and Janaćković, Đorđe",
year = "2019",
abstract = "Different semiconductors have been studied as photoanode material for solar cells. Among them, TiO2 has been shown to be the best material due to its chemical stability and good charge transport capability. It is usually deposited onto FTO glass (F-SnO2), and then heated at high temperature in order to obtain inter-crystalline electric contact for improving electron conductivity. The focus of this research was chemical analysis of the TiO2 nanotubes (NTs) obtained by anodization of titanium film on FTO glass using NH4F in ethylene glycol electrolyte. There are only few studies suggesting that the electrolyte is a source of N dopant in TiO2, but also Sn diffusion from FTO support was reported. This study aims to show the chemical distribution of elements of interest along the nanotubes depth. For that purpose the time-of-flight elastic recoil detection analysis (ToF-ERDA) and Rutherford backscattering (RBS) methods were used as complementary techniques for chemical analysis of both light, such is N, and heavy elements, such is Sn. The TiO2 NTs films were annealed at different temperatures (450– 630 °C) and the impact of the heating temperature on the chemical distribution was followed.",
publisher = "Novi Sad : Faculty of Technology",
journal = "Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad",
title = "ToF-ERDA/RBS analysis of annealed TiO2 nanotubes grown onto FTO glass",
pages = "132-132",
url = "https://hdl.handle.net/21.15107/rcub_dais_6985"
}

Vujančević, J., Bjelajac, A., Provatas, G., Siketić, Z., Jakšić, M., Pavlović, V. B.,& Janaćković, Đ.. (2019). ToF-ERDA/RBS analysis of annealed TiO2 nanotubes grown onto FTO glass. in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad
Novi Sad : Faculty of Technology., 132-132.
https://hdl.handle.net/21.15107/rcub_dais_6985

Vujančević J, Bjelajac A, Provatas G, Siketić Z, Jakšić M, Pavlović VB, Janaćković Đ. ToF-ERDA/RBS analysis of annealed TiO2 nanotubes grown onto FTO glass. in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad. 2019;:132-132.
https://hdl.handle.net/21.15107/rcub_dais_6985 .

Vujančević, Jelena, Bjelajac, Anđelika, Provatas, Georgios, Siketić, Zdravko, Jakšić, Milko, Pavlović, Vladimir B., Janaćković, Đorđe, "ToF-ERDA/RBS analysis of annealed TiO2 nanotubes grown onto FTO glass" in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad (2019):132-132,
https://hdl.handle.net/21.15107/rcub_dais_6985 .

TY  - JOUR
AU  - Vujančević, Jelena
AU  - Andričević, Pavao
AU  - Bjelajac, Anđelika
AU  - Đokić, Veljko
AU  - Popović, Maja
AU  - Rakočević, Zlatko
AU  - Horváth, Endre
AU  - Kollár, Márton
AU  - Náfrádi, Bálint
AU  - Schiller, Andreas
AU  - Domanski, Konrad
AU  - Forró, Laszlo
AU  - Pavlović, Vera P.
AU  - Janaćković, Đorđe
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/5084
AB  - Highly ordered, anodically grown TiO 2 nanotubes on titanium supports were annealed in ammonia atmosphere in order to incorporate nitrogen doping (≤2 at.%) in the titanium oxide lattice. FESEM micrographs revealed nanotubes with an average outer diameter of 101.5 ± 1.5 nm and an average wall thickness of about 13 nm. Anatase crystals were formed inside the tubes after annealing in ammonia atmosphere for 30 min. With further annealing, rutile peaks appeared due to the thermal oxidation of the foil and rise as the duration of heat treatment was increased. The concentration and chemical nature of nitrogen in the nanotube arrays can be correlated to the optical response of dry-pressed heterojunctions of doped TiO 2 /CH 3 NH 3 PbI 3 single crystals. The N-TiO 2 /perovskite heterojunction with the highest amount of interstitial nitrogen exhibited an improved photocurrent, indicating the importance of the semiconductor doping-based heterojunction optimization strategies to deliver competitive levels of halide perovskite-based optoelectronic devices to be envisioned for urban infrastructures. © 2019
PB  - Elsevier
T2  - Ceramics International
T1  - Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping
SP  - 10013
EP  - 10020
VL  - 45
IS  - 8
DO  - 10.1016/j.ceramint.2019.02.045
UR  - https://hdl.handle.net/21.15107/rcub_dais_5084
ER  - 

@article{
author = "Vujančević, Jelena and Andričević, Pavao and Bjelajac, Anđelika and Đokić, Veljko and Popović, Maja and Rakočević, Zlatko and Horváth, Endre and Kollár, Márton and Náfrádi, Bálint and Schiller, Andreas and Domanski, Konrad and Forró, Laszlo and Pavlović, Vera P. and Janaćković, Đorđe",
year = "2019",
abstract = "Highly ordered, anodically grown TiO 2 nanotubes on titanium supports were annealed in ammonia atmosphere in order to incorporate nitrogen doping (≤2 at.%) in the titanium oxide lattice. FESEM micrographs revealed nanotubes with an average outer diameter of 101.5 ± 1.5 nm and an average wall thickness of about 13 nm. Anatase crystals were formed inside the tubes after annealing in ammonia atmosphere for 30 min. With further annealing, rutile peaks appeared due to the thermal oxidation of the foil and rise as the duration of heat treatment was increased. The concentration and chemical nature of nitrogen in the nanotube arrays can be correlated to the optical response of dry-pressed heterojunctions of doped TiO 2 /CH 3 NH 3 PbI 3 single crystals. The N-TiO 2 /perovskite heterojunction with the highest amount of interstitial nitrogen exhibited an improved photocurrent, indicating the importance of the semiconductor doping-based heterojunction optimization strategies to deliver competitive levels of halide perovskite-based optoelectronic devices to be envisioned for urban infrastructures. © 2019",
publisher = "Elsevier",
journal = "Ceramics International",
title = "Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping",
pages = "10013-10020",
volume = "45",
number = "8",
doi = "10.1016/j.ceramint.2019.02.045",
url = "https://hdl.handle.net/21.15107/rcub_dais_5084"
}

Vujančević, J., Andričević, P., Bjelajac, A., Đokić, V., Popović, M., Rakočević, Z., Horváth, E., Kollár, M., Náfrádi, B., Schiller, A., Domanski, K., Forró, L., Pavlović, V. P.,& Janaćković, Đ.. (2019). Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. in Ceramics International
Elsevier., 45(8), 10013-10020.
https://doi.org/10.1016/j.ceramint.2019.02.045
https://hdl.handle.net/21.15107/rcub_dais_5084

Vujančević J, Andričević P, Bjelajac A, Đokić V, Popović M, Rakočević Z, Horváth E, Kollár M, Náfrádi B, Schiller A, Domanski K, Forró L, Pavlović VP, Janaćković Đ. Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. in Ceramics International. 2019;45(8):10013-10020.
doi:10.1016/j.ceramint.2019.02.045
https://hdl.handle.net/21.15107/rcub_dais_5084 .

Vujančević, Jelena, Andričević, Pavao, Bjelajac, Anđelika, Đokić, Veljko, Popović, Maja, Rakočević, Zlatko, Horváth, Endre, Kollár, Márton, Náfrádi, Bálint, Schiller, Andreas, Domanski, Konrad, Forró, Laszlo, Pavlović, Vera P., Janaćković, Đorđe, "Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping" in Ceramics International, 45, no. 8 (2019):10013-10020,
https://doi.org/10.1016/j.ceramint.2019.02.045 .,
https://hdl.handle.net/21.15107/rcub_dais_5084 .

TY  - JOUR
AU  - Vujančević, Jelena
AU  - Andričević, Pavao
AU  - Bjelajac, Anđelika
AU  - Đokić, Veljko
AU  - Popović, Maja
AU  - Rakočević, Zlatko
AU  - Horváth, Endre
AU  - Kollár, Márton
AU  - Náfrádi, Bálint
AU  - Schiller, Andreas
AU  - Domanski, Konrad
AU  - Forró, Laszlo
AU  - Pavlović, Vera P.
AU  - Janaćković, Đorđe
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/5765
AB  - Highly ordered, anodically grown TiO 2 nanotubes on titanium supports were annealed in ammonia atmosphere in order to incorporate nitrogen doping (≤2 at.%) in the titanium oxide lattice. FESEM micrographs revealed nanotubes with an average outer diameter of 101.5 ± 1.5 nm and an average wall thickness of about 13 nm. Anatase crystals were formed inside the tubes after annealing in ammonia atmosphere for 30 min. With further annealing, rutile peaks appeared due to the thermal oxidation of the foil and rise as the duration of heat treatment was increased. The concentration and chemical nature of nitrogen in the nanotube arrays can be correlated to the optical response of dry-pressed heterojunctions of doped TiO 2 /CH 3 NH 3 PbI 3 single crystals. The N-TiO 2 /perovskite heterojunction with the highest amount of interstitial nitrogen exhibited an improved photocurrent, indicating the importance of the semiconductor doping-based heterojunction optimization strategies to deliver competitive levels of halide perovskite-based optoelectronic devices to be envisioned for urban infrastructures. © 2019
PB  - Elsevier
T2  - Ceramics International
T1  - Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping
SP  - 10013
EP  - 10020
VL  - 45
IS  - 8
DO  - 10.1016/j.ceramint.2019.02.045
UR  - https://hdl.handle.net/21.15107/rcub_dais_5765
ER  - 

@article{
author = "Vujančević, Jelena and Andričević, Pavao and Bjelajac, Anđelika and Đokić, Veljko and Popović, Maja and Rakočević, Zlatko and Horváth, Endre and Kollár, Márton and Náfrádi, Bálint and Schiller, Andreas and Domanski, Konrad and Forró, Laszlo and Pavlović, Vera P. and Janaćković, Đorđe",
year = "2019",
abstract = "Highly ordered, anodically grown TiO 2 nanotubes on titanium supports were annealed in ammonia atmosphere in order to incorporate nitrogen doping (≤2 at.%) in the titanium oxide lattice. FESEM micrographs revealed nanotubes with an average outer diameter of 101.5 ± 1.5 nm and an average wall thickness of about 13 nm. Anatase crystals were formed inside the tubes after annealing in ammonia atmosphere for 30 min. With further annealing, rutile peaks appeared due to the thermal oxidation of the foil and rise as the duration of heat treatment was increased. The concentration and chemical nature of nitrogen in the nanotube arrays can be correlated to the optical response of dry-pressed heterojunctions of doped TiO 2 /CH 3 NH 3 PbI 3 single crystals. The N-TiO 2 /perovskite heterojunction with the highest amount of interstitial nitrogen exhibited an improved photocurrent, indicating the importance of the semiconductor doping-based heterojunction optimization strategies to deliver competitive levels of halide perovskite-based optoelectronic devices to be envisioned for urban infrastructures. © 2019",
publisher = "Elsevier",
journal = "Ceramics International",
title = "Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping",
pages = "10013-10020",
volume = "45",
number = "8",
doi = "10.1016/j.ceramint.2019.02.045",
url = "https://hdl.handle.net/21.15107/rcub_dais_5765"
}

Vujančević, J., Andričević, P., Bjelajac, A., Đokić, V., Popović, M., Rakočević, Z., Horváth, E., Kollár, M., Náfrádi, B., Schiller, A., Domanski, K., Forró, L., Pavlović, V. P.,& Janaćković, Đ.. (2019). Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. in Ceramics International
Elsevier., 45(8), 10013-10020.
https://doi.org/10.1016/j.ceramint.2019.02.045
https://hdl.handle.net/21.15107/rcub_dais_5765

Vujančević J, Andričević P, Bjelajac A, Đokić V, Popović M, Rakočević Z, Horváth E, Kollár M, Náfrádi B, Schiller A, Domanski K, Forró L, Pavlović VP, Janaćković Đ. Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. in Ceramics International. 2019;45(8):10013-10020.
doi:10.1016/j.ceramint.2019.02.045
https://hdl.handle.net/21.15107/rcub_dais_5765 .

Vujančević, Jelena, Andričević, Pavao, Bjelajac, Anđelika, Đokić, Veljko, Popović, Maja, Rakočević, Zlatko, Horváth, Endre, Kollár, Márton, Náfrádi, Bálint, Schiller, Andreas, Domanski, Konrad, Forró, Laszlo, Pavlović, Vera P., Janaćković, Đorđe, "Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping" in Ceramics International, 45, no. 8 (2019):10013-10020,
https://doi.org/10.1016/j.ceramint.2019.02.045 .,
https://hdl.handle.net/21.15107/rcub_dais_5765 .

TY  - DATA
AU  - Vujančević, Jelena
AU  - Andričević, Pavao
AU  - Bjelajac, Anđelika
AU  - Đokić, Veljko
AU  - Popović, Maja
AU  - Rakočević, Zlatko
AU  - Horváth, Endre
AU  - Kollár, Márton
AU  - Náfrádi, Bálint
AU  - Schiller, Andreas
AU  - Domanski, Konrad
AU  - Forró, Laszlo
AU  - Pavlović, Vera P.
AU  - Janaćković, Đorđe
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/5969
AB  - Table S1. Reported methods for nitrogen doping of anodized TiO2 nanotube arrays; Figure S1. SEM images and statistical distributions of outer diameters obtained by analyzing SEM micrographs of 100 nanotubes; Table S2. Average morphology parameters for TiO2-undoped, TiO2-N30, TiO2-N60 and TiO2-N90 samples; Table S3. Average crystals size for TiO2-undoped, TiO2-N30, TiO2-N60 and TiO2-N90 samples; Figure S2. Deconvoluted XPS spectra of N 1s core level of Ti foil (black line-experimental, grey line-background, magenta line-envelope); Table S4. Peak positions and atomic percentages of N1s core levels for TiO2-undoped, TiO2-N30, TiO2-N60 and TiO2-N90 samples; Table S5. Positions and atomic percentages of Ti 2p3/2 and O1s core peaks for TiO2-undoped, TiO2-N30, TiO2-N60 and TiO2-N90 samples; Figure S3. The time evolution of the current during the preconditioning of the TiO2/perovskite sample at a bias voltage of 100 V for 75 sec. Dashed line is the logarithmic fit of the base line of the current time evolution; Figure S4. Ideality factor for TiO2-undoped, TiO2-N30, TiO2-N60 and TiO2-N90 samples
T2  - Ceramics International
T1  - Supporting information for the article: Vujančević, J., Andričević, P., Bjelajac, A., Đokić, V., Popović, M., Rakočević, Z., Horváth, E., Kollár, M., Náfrádi, B., Schiller, A., Domanski, K., Forró, L., Pavlović, V., Janaćković, Đ., 2019. Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. Ceramics International 45, 10013–10020. https://doi.org/10.1016/j.ceramint.2019.02.045
UR  - https://hdl.handle.net/21.15107/rcub_dais_5969
ER  - 

@misc{
author = "Vujančević, Jelena and Andričević, Pavao and Bjelajac, Anđelika and Đokić, Veljko and Popović, Maja and Rakočević, Zlatko and Horváth, Endre and Kollár, Márton and Náfrádi, Bálint and Schiller, Andreas and Domanski, Konrad and Forró, Laszlo and Pavlović, Vera P. and Janaćković, Đorđe",
year = "2019",
abstract = "Table S1. Reported methods for nitrogen doping of anodized TiO2 nanotube arrays; Figure S1. SEM images and statistical distributions of outer diameters obtained by analyzing SEM micrographs of 100 nanotubes; Table S2. Average morphology parameters for TiO2-undoped, TiO2-N30, TiO2-N60 and TiO2-N90 samples; Table S3. Average crystals size for TiO2-undoped, TiO2-N30, TiO2-N60 and TiO2-N90 samples; Figure S2. Deconvoluted XPS spectra of N 1s core level of Ti foil (black line-experimental, grey line-background, magenta line-envelope); Table S4. Peak positions and atomic percentages of N1s core levels for TiO2-undoped, TiO2-N30, TiO2-N60 and TiO2-N90 samples; Table S5. Positions and atomic percentages of Ti 2p3/2 and O1s core peaks for TiO2-undoped, TiO2-N30, TiO2-N60 and TiO2-N90 samples; Figure S3. The time evolution of the current during the preconditioning of the TiO2/perovskite sample at a bias voltage of 100 V for 75 sec. Dashed line is the logarithmic fit of the base line of the current time evolution; Figure S4. Ideality factor for TiO2-undoped, TiO2-N30, TiO2-N60 and TiO2-N90 samples",
journal = "Ceramics International",
title = "Supporting information for the article: Vujančević, J., Andričević, P., Bjelajac, A., Đokić, V., Popović, M., Rakočević, Z., Horváth, E., Kollár, M., Náfrádi, B., Schiller, A., Domanski, K., Forró, L., Pavlović, V., Janaćković, Đ., 2019. Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. Ceramics International 45, 10013–10020. https://doi.org/10.1016/j.ceramint.2019.02.045",
url = "https://hdl.handle.net/21.15107/rcub_dais_5969"
}

Vujančević, J., Andričević, P., Bjelajac, A., Đokić, V., Popović, M., Rakočević, Z., Horváth, E., Kollár, M., Náfrádi, B., Schiller, A., Domanski, K., Forró, L., Pavlović, V. P.,& Janaćković, Đ.. (2019). Supporting information for the article: Vujančević, J., Andričević, P., Bjelajac, A., Đokić, V., Popović, M., Rakočević, Z., Horváth, E., Kollár, M., Náfrádi, B., Schiller, A., Domanski, K., Forró, L., Pavlović, V., Janaćković, Đ., 2019. Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. Ceramics International 45, 10013–10020. https://doi.org/10.1016/j.ceramint.2019.02.045. in Ceramics International.
https://hdl.handle.net/21.15107/rcub_dais_5969

Vujančević J, Andričević P, Bjelajac A, Đokić V, Popović M, Rakočević Z, Horváth E, Kollár M, Náfrádi B, Schiller A, Domanski K, Forró L, Pavlović VP, Janaćković Đ. Supporting information for the article: Vujančević, J., Andričević, P., Bjelajac, A., Đokić, V., Popović, M., Rakočević, Z., Horváth, E., Kollár, M., Náfrádi, B., Schiller, A., Domanski, K., Forró, L., Pavlović, V., Janaćković, Đ., 2019. Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. Ceramics International 45, 10013–10020. https://doi.org/10.1016/j.ceramint.2019.02.045. in Ceramics International. 2019;.
https://hdl.handle.net/21.15107/rcub_dais_5969 .

Vujančević, Jelena, Andričević, Pavao, Bjelajac, Anđelika, Đokić, Veljko, Popović, Maja, Rakočević, Zlatko, Horváth, Endre, Kollár, Márton, Náfrádi, Bálint, Schiller, Andreas, Domanski, Konrad, Forró, Laszlo, Pavlović, Vera P., Janaćković, Đorđe, "Supporting information for the article: Vujančević, J., Andričević, P., Bjelajac, A., Đokić, V., Popović, M., Rakočević, Z., Horváth, E., Kollár, M., Náfrádi, B., Schiller, A., Domanski, K., Forró, L., Pavlović, V., Janaćković, Đ., 2019. Dry-pressed anodized titania nanotube/CH3NH3PbI3 single crystal heterojunctions: The beneficial role of N doping. Ceramics International 45, 10013–10020. https://doi.org/10.1016/j.ceramint.2019.02.045" in Ceramics International (2019),
https://hdl.handle.net/21.15107/rcub_dais_5969 .

TY  - CONF
AU  - Vujančević, Jelena
AU  - Bjelajac, Anđelika
AU  - Ćirković, Jovana
AU  - Pavlović, Vera P.
AU  - Horváth, Endre
AU  - Forró, László
AU  - Janaćković, Đorđe
AU  - Pavlović, Vladimir B.
PY  - 2018
UR  - https://dais.sanu.ac.rs/123456789/4722
AB  - Semiconductor TiO2 photocatalysis is a heterogeneous catalysis, where the photons of the sun or artificial light source are activating the catalyst that enters in reactions. The targeted real-world applications are in environmental protection and remediation such as wastewater treatment, air purification and decomposition of harmful organic pollutants. In this talk, I present the synthesis of nanotubular, thin TiO2 coatings with altered morphology and crystallinity made by anodization technique. The influence of the anodization parameters and post-synthesis annealing conditions on the photocatalytic methyl orange dye decomposition was assessed. Different morphology, crystallinity and introducing a dopant into lattice increase electron transport and electron lifetime which further improve photocatalytic activity.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia
T1  - Customizing nanotubular titania for photocatalytic activity
SP  - 77
EP  - 77
UR  - https://hdl.handle.net/21.15107/rcub_dais_4722
ER  - 

@conference{
author = "Vujančević, Jelena and Bjelajac, Anđelika and Ćirković, Jovana and Pavlović, Vera P. and Horváth, Endre and Forró, László and Janaćković, Đorđe and Pavlović, Vladimir B.",
year = "2018",
abstract = "Semiconductor TiO2 photocatalysis is a heterogeneous catalysis, where the photons of the sun or artificial light source are activating the catalyst that enters in reactions. The targeted real-world applications are in environmental protection and remediation such as wastewater treatment, air purification and decomposition of harmful organic pollutants. In this talk, I present the synthesis of nanotubular, thin TiO2 coatings with altered morphology and crystallinity made by anodization technique. The influence of the anodization parameters and post-synthesis annealing conditions on the photocatalytic methyl orange dye decomposition was assessed. Different morphology, crystallinity and introducing a dopant into lattice increase electron transport and electron lifetime which further improve photocatalytic activity.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia",
title = "Customizing nanotubular titania for photocatalytic activity",
pages = "77-77",
url = "https://hdl.handle.net/21.15107/rcub_dais_4722"
}

Vujančević, J., Bjelajac, A., Ćirković, J., Pavlović, V. P., Horváth, E., Forró, L., Janaćković, Đ.,& Pavlović, V. B.. (2018). Customizing nanotubular titania for photocatalytic activity. in Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 77-77.
https://hdl.handle.net/21.15107/rcub_dais_4722

Vujančević J, Bjelajac A, Ćirković J, Pavlović VP, Horváth E, Forró L, Janaćković Đ, Pavlović VB. Customizing nanotubular titania for photocatalytic activity. in Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia. 2018;:77-77.
https://hdl.handle.net/21.15107/rcub_dais_4722 .

Vujančević, Jelena, Bjelajac, Anđelika, Ćirković, Jovana, Pavlović, Vera P., Horváth, Endre, Forró, László, Janaćković, Đorđe, Pavlović, Vladimir B., "Customizing nanotubular titania for photocatalytic activity" in Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia (2018):77-77,
https://hdl.handle.net/21.15107/rcub_dais_4722 .

TY  - JOUR
AU  - Vujančević, Jelena
AU  - Bjelajac, Anđelika
AU  - Ćirković, Jovana
AU  - Pavlović, Vera P.
AU  - Horváth, Endre
AU  - Forró, László
AU  - Vlahović, Branislav
AU  - Mitrić, Miodrag
AU  - Janaćković, Đorđe
AU  - Pavlović, Vladimir B.
PY  - 2018
UR  - https://dais.sanu.ac.rs/123456789/4528
AB  - One-dimensional (1D) TiO2 nanotubes perpendicular to the substrate were obtained by electrochemical oxidation of titanium foil in an acid electrolyte. In order to alter the crystallinity and the morphology of films the as-anodized amorphous TiO2 nanotube films were sintered at elevated temperatures. The evolution of the morphology was visualized via scanning electron microscopy (SEM), while the crystalline structure was investigated by X-ray diffraction (XRD) and Raman spectroscopy. The chemical composition was studied by X-ray photoelectron spectroscopy (XPS). The effects of crystallinity and morphology of TiO2 nanotube (NTs) films on photocatalytic degradation of methyl orange (MO) in an aqueous solution under UV light irradiation were also investigated. The TiO2 nanotubes sintered at 650°C for 30 min had the highest degree of crystallinity and exhibited the best photocatalytic activity among the studied TiO2 nanotube films. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. OI 172057 and Grant no. III 45019]
PB  - Belgrade : ETRAN
T2  - Science of Sintering
T2  - Science of Sintering
T1  - Structure and photocatalytic properties of sintered TiO2 nanotube arrays
SP  - 39
EP  - 50
VL  - 50
IS  - 1
DO  - 10.2298/SOS1801039V
UR  - https://hdl.handle.net/21.15107/rcub_dais_4528
ER  - 

@article{
author = "Vujančević, Jelena and Bjelajac, Anđelika and Ćirković, Jovana and Pavlović, Vera P. and Horváth, Endre and Forró, László and Vlahović, Branislav and Mitrić, Miodrag and Janaćković, Đorđe and Pavlović, Vladimir B.",
year = "2018",
abstract = "One-dimensional (1D) TiO2 nanotubes perpendicular to the substrate were obtained by electrochemical oxidation of titanium foil in an acid electrolyte. In order to alter the crystallinity and the morphology of films the as-anodized amorphous TiO2 nanotube films were sintered at elevated temperatures. The evolution of the morphology was visualized via scanning electron microscopy (SEM), while the crystalline structure was investigated by X-ray diffraction (XRD) and Raman spectroscopy. The chemical composition was studied by X-ray photoelectron spectroscopy (XPS). The effects of crystallinity and morphology of TiO2 nanotube (NTs) films on photocatalytic degradation of methyl orange (MO) in an aqueous solution under UV light irradiation were also investigated. The TiO2 nanotubes sintered at 650°C for 30 min had the highest degree of crystallinity and exhibited the best photocatalytic activity among the studied TiO2 nanotube films. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. OI 172057 and Grant no. III 45019]",
publisher = "Belgrade : ETRAN",
journal = "Science of Sintering, Science of Sintering",
title = "Structure and photocatalytic properties of sintered TiO2 nanotube arrays",
pages = "39-50",
volume = "50",
number = "1",
doi = "10.2298/SOS1801039V",
url = "https://hdl.handle.net/21.15107/rcub_dais_4528"
}

Vujančević, J., Bjelajac, A., Ćirković, J., Pavlović, V. P., Horváth, E., Forró, L., Vlahović, B., Mitrić, M., Janaćković, Đ.,& Pavlović, V. B.. (2018). Structure and photocatalytic properties of sintered TiO2 nanotube arrays. in Science of Sintering
Belgrade : ETRAN., 50(1), 39-50.
https://doi.org/10.2298/SOS1801039V
https://hdl.handle.net/21.15107/rcub_dais_4528

Vujančević J, Bjelajac A, Ćirković J, Pavlović VP, Horváth E, Forró L, Vlahović B, Mitrić M, Janaćković Đ, Pavlović VB. Structure and photocatalytic properties of sintered TiO2 nanotube arrays. in Science of Sintering. 2018;50(1):39-50.
doi:10.2298/SOS1801039V
https://hdl.handle.net/21.15107/rcub_dais_4528 .

Vujančević, Jelena, Bjelajac, Anđelika, Ćirković, Jovana, Pavlović, Vera P., Horváth, Endre, Forró, László, Vlahović, Branislav, Mitrić, Miodrag, Janaćković, Đorđe, Pavlović, Vladimir B., "Structure and photocatalytic properties of sintered TiO2 nanotube arrays" in Science of Sintering, 50, no. 1 (2018):39-50,
https://doi.org/10.2298/SOS1801039V .,
https://hdl.handle.net/21.15107/rcub_dais_4528 .

TY  - CONF
AU  - Vujančević, Jelena
AU  - Bjelajac, Anđelika
AU  - Pavlović, Vera P.
AU  - Vlahović, Branislav
AU  - Janaćković, Đorđe
AU  - Pavlović, Vladimir B.
PY  - 2017
UR  - https://dais.sanu.ac.rs/123456789/5121
AB  - Nanomaterials development is a rapidly emerging field of research with enormous potential for societal and economic benefits. In agro and food industries dimension-dependent properties or phenomena of nanomaterials may be used for various functional effects such as increased bioavailability or decreased toxicity of products, better detection of pathogens, improved food packaging materials, or improved delivery of nutrients. Since these effects may derive from altered or unique characteristics of materials in the nanoscale range that are not normally observed or expected in larger-scale materials with the same chemical composition, such changes raise questions about the safety, effectiveness, performance, quality or public health impact of nanotechnology products. In this article, we have reviewed the fabrication, properties, and selected applications of nanostructured TiO2 based materials. Special attention has been paid to TiO2 nanoparticles and nanotubes fabrication perspectives and applications in agriculture. We have shown that high photocatalytic disinfection and photobiological effects of nanostructured TiO2 coupled with its low price, nontoxicity, and stable performance especially provide new approaches for solving environmental pollution and pesticide residue problems in agriculture.
PB  - Belgrade : Faculty of Agriculture, Department for Agricultural Engineering
C3  - Proceedings / The Third International Symposium on Agricultural Engineering, ISAE-2017, October, 20th-21st 2017, Belgrade
T1  - Fabrication and applications of multifunctional nanostructured TiO2
SP  - VII - 10
EP  - VII - 18
UR  - https://hdl.handle.net/21.15107/rcub_dais_5121
ER  - 

@conference{
author = "Vujančević, Jelena and Bjelajac, Anđelika and Pavlović, Vera P. and Vlahović, Branislav and Janaćković, Đorđe and Pavlović, Vladimir B.",
year = "2017",
abstract = "Nanomaterials development is a rapidly emerging field of research with enormous potential for societal and economic benefits. In agro and food industries dimension-dependent properties or phenomena of nanomaterials may be used for various functional effects such as increased bioavailability or decreased toxicity of products, better detection of pathogens, improved food packaging materials, or improved delivery of nutrients. Since these effects may derive from altered or unique characteristics of materials in the nanoscale range that are not normally observed or expected in larger-scale materials with the same chemical composition, such changes raise questions about the safety, effectiveness, performance, quality or public health impact of nanotechnology products. In this article, we have reviewed the fabrication, properties, and selected applications of nanostructured TiO2 based materials. Special attention has been paid to TiO2 nanoparticles and nanotubes fabrication perspectives and applications in agriculture. We have shown that high photocatalytic disinfection and photobiological effects of nanostructured TiO2 coupled with its low price, nontoxicity, and stable performance especially provide new approaches for solving environmental pollution and pesticide residue problems in agriculture.",
publisher = "Belgrade : Faculty of Agriculture, Department for Agricultural Engineering",
journal = "Proceedings / The Third International Symposium on Agricultural Engineering, ISAE-2017, October, 20th-21st 2017, Belgrade",
title = "Fabrication and applications of multifunctional nanostructured TiO2",
pages = "VII - 10-VII - 18",
url = "https://hdl.handle.net/21.15107/rcub_dais_5121"
}

Vujančević, J., Bjelajac, A., Pavlović, V. P., Vlahović, B., Janaćković, Đ.,& Pavlović, V. B.. (2017). Fabrication and applications of multifunctional nanostructured TiO2. in Proceedings / The Third International Symposium on Agricultural Engineering, ISAE-2017, October, 20th-21st 2017, Belgrade
Belgrade : Faculty of Agriculture, Department for Agricultural Engineering., VII - 10-VII - 18.
https://hdl.handle.net/21.15107/rcub_dais_5121

Vujančević J, Bjelajac A, Pavlović VP, Vlahović B, Janaćković Đ, Pavlović VB. Fabrication and applications of multifunctional nanostructured TiO2. in Proceedings / The Third International Symposium on Agricultural Engineering, ISAE-2017, October, 20th-21st 2017, Belgrade. 2017;:VII - 10-VII - 18.
https://hdl.handle.net/21.15107/rcub_dais_5121 .

Vujančević, Jelena, Bjelajac, Anđelika, Pavlović, Vera P., Vlahović, Branislav, Janaćković, Đorđe, Pavlović, Vladimir B., "Fabrication and applications of multifunctional nanostructured TiO2" in Proceedings / The Third International Symposium on Agricultural Engineering, ISAE-2017, October, 20th-21st 2017, Belgrade (2017):VII - 10-VII - 18,
https://hdl.handle.net/21.15107/rcub_dais_5121 .

TY  - CONF
AU  - Vujančević, Jelena
AU  - Bjelajac, Anđelika
AU  - Pavlović, Vera P.
AU  - Vlahović, Branislav
AU  - Janaćković, Đorđe
AU  - Pavlović, Vladimir B.
PY  - 2017
UR  - https://dais.sanu.ac.rs/123456789/5141
AB  - Nanomaterials development is a rapidly emerging field of research with enormous potential for societal and economic benefits. In agro and food industries dimension-dependent properties or phenomena of nanomaterials may be used for various functional effects such as increased bioavailability or decreased toxicity of products, better detection of pathogens, improved food packaging materials, or improved delivery of nutrients. Since these effects may derive from altered or unique characteristics of materials in the nanoscale range that are not normally observed or expected in larger-scale materials with the same chemical composition, such changes raise questions about the safety, effectiveness, performance, quality or public health impact of nanotechnology products. In this article, we have reviewed the fabrication, properties, and selected applications of nanostructured TiO2 based materials. Special attention has been paid to TiO2 nanoparticles and nanotubes fabrication perspectives and applications in agriculture. We have shown that high photocatalytic disinfection and photobiological effects of nanostructured TiO2 coupled with its low price, nontoxicity, and stable performance especially provide new approaches for solving environmental pollution and pesticide residue problems in agriculture.
PB  - Belgrade : Faculty of Agriculture, Department for Agricultural Engineering
C3  - Book of Abstracts / The Third International Symposium on Agricultural Engineering, ISAE-2017, 20th-21st October 2017, Belgrade - Zemun, Serbia
T1  - Fabrication and applications of multifunctional nanostructured TiO2
SP  - 44
EP  - 44
UR  - https://hdl.handle.net/21.15107/rcub_dais_5141
ER  - 

@conference{
author = "Vujančević, Jelena and Bjelajac, Anđelika and Pavlović, Vera P. and Vlahović, Branislav and Janaćković, Đorđe and Pavlović, Vladimir B.",
year = "2017",
abstract = "Nanomaterials development is a rapidly emerging field of research with enormous potential for societal and economic benefits. In agro and food industries dimension-dependent properties or phenomena of nanomaterials may be used for various functional effects such as increased bioavailability or decreased toxicity of products, better detection of pathogens, improved food packaging materials, or improved delivery of nutrients. Since these effects may derive from altered or unique characteristics of materials in the nanoscale range that are not normally observed or expected in larger-scale materials with the same chemical composition, such changes raise questions about the safety, effectiveness, performance, quality or public health impact of nanotechnology products. In this article, we have reviewed the fabrication, properties, and selected applications of nanostructured TiO2 based materials. Special attention has been paid to TiO2 nanoparticles and nanotubes fabrication perspectives and applications in agriculture. We have shown that high photocatalytic disinfection and photobiological effects of nanostructured TiO2 coupled with its low price, nontoxicity, and stable performance especially provide new approaches for solving environmental pollution and pesticide residue problems in agriculture.",
publisher = "Belgrade : Faculty of Agriculture, Department for Agricultural Engineering",
journal = "Book of Abstracts / The Third International Symposium on Agricultural Engineering, ISAE-2017, 20th-21st October 2017, Belgrade - Zemun, Serbia",
title = "Fabrication and applications of multifunctional nanostructured TiO2",
pages = "44-44",
url = "https://hdl.handle.net/21.15107/rcub_dais_5141"
}

Vujančević, J., Bjelajac, A., Pavlović, V. P., Vlahović, B., Janaćković, Đ.,& Pavlović, V. B.. (2017). Fabrication and applications of multifunctional nanostructured TiO2. in Book of Abstracts / The Third International Symposium on Agricultural Engineering, ISAE-2017, 20th-21st October 2017, Belgrade - Zemun, Serbia
Belgrade : Faculty of Agriculture, Department for Agricultural Engineering., 44-44.
https://hdl.handle.net/21.15107/rcub_dais_5141

Vujančević J, Bjelajac A, Pavlović VP, Vlahović B, Janaćković Đ, Pavlović VB. Fabrication and applications of multifunctional nanostructured TiO2. in Book of Abstracts / The Third International Symposium on Agricultural Engineering, ISAE-2017, 20th-21st October 2017, Belgrade - Zemun, Serbia. 2017;:44-44.
https://hdl.handle.net/21.15107/rcub_dais_5141 .

Vujančević, Jelena, Bjelajac, Anđelika, Pavlović, Vera P., Vlahović, Branislav, Janaćković, Đorđe, Pavlović, Vladimir B., "Fabrication and applications of multifunctional nanostructured TiO2" in Book of Abstracts / The Third International Symposium on Agricultural Engineering, ISAE-2017, 20th-21st October 2017, Belgrade - Zemun, Serbia (2017):44-44,
https://hdl.handle.net/21.15107/rcub_dais_5141 .

TY  - CONF
AU  - Vujančević, Jelena
AU  - Đokić, Veljko
AU  - Bjelajac, Anđelika
AU  - Pavlović, Vera P.
AU  - Mitrić, Miodrag
AU  - Janaćković, Đorđe
AU  - Pavlović, Vladimir B.
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/841
AB  - Having in mind that anodic oxidation method can be used for tailoring desired structure and morphology of TiO2, herein the synthesis of self-ordered TiO2 nanotubes via electrochemical anodization of high purity Ti foil is reported. The influence of synthesis parameters such as oxidative voltage, different electrolyte, annealing temperature and annealing atmosphere were explored and correlate with obtained TiO2 nanotube arrays. The results show that applied potential is the main factor that controls the diameter of the nanotubes, while annealing temperature influence on crystal type and morphology is related to different contents of electrolyte. Investigated method gives opportunity to enhanced performance of TiO2 nanotubes, providing many applications in different field.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia
T1  - Tailoring self-ordering TiO2 nanotube arrays by oxidative anodization
SP  - 18
EP  - 18
UR  - https://hdl.handle.net/21.15107/rcub_dais_841
ER  - 

@conference{
author = "Vujančević, Jelena and Đokić, Veljko and Bjelajac, Anđelika and Pavlović, Vera P. and Mitrić, Miodrag and Janaćković, Đorđe and Pavlović, Vladimir B.",
year = "2015",
abstract = "Having in mind that anodic oxidation method can be used for tailoring desired structure and morphology of TiO2, herein the synthesis of self-ordered TiO2 nanotubes via electrochemical anodization of high purity Ti foil is reported. The influence of synthesis parameters such as oxidative voltage, different electrolyte, annealing temperature and annealing atmosphere were explored and correlate with obtained TiO2 nanotube arrays. The results show that applied potential is the main factor that controls the diameter of the nanotubes, while annealing temperature influence on crystal type and morphology is related to different contents of electrolyte. Investigated method gives opportunity to enhanced performance of TiO2 nanotubes, providing many applications in different field.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia",
title = "Tailoring self-ordering TiO2 nanotube arrays by oxidative anodization",
pages = "18-18",
url = "https://hdl.handle.net/21.15107/rcub_dais_841"
}

Vujančević, J., Đokić, V., Bjelajac, A., Pavlović, V. P., Mitrić, M., Janaćković, Đ.,& Pavlović, V. B.. (2015). Tailoring self-ordering TiO2 nanotube arrays by oxidative anodization. in Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 18-18.
https://hdl.handle.net/21.15107/rcub_dais_841

Vujančević J, Đokić V, Bjelajac A, Pavlović VP, Mitrić M, Janaćković Đ, Pavlović VB. Tailoring self-ordering TiO2 nanotube arrays by oxidative anodization. in Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia. 2015;:18-18.
https://hdl.handle.net/21.15107/rcub_dais_841 .

Vujančević, Jelena, Đokić, Veljko, Bjelajac, Anđelika, Pavlović, Vera P., Mitrić, Miodrag, Janaćković, Đorđe, Pavlović, Vladimir B., "Tailoring self-ordering TiO2 nanotube arrays by oxidative anodization" in Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia (2015):18-18,
https://hdl.handle.net/21.15107/rcub_dais_841 .

TY  - CONF
AU  - Vujančević, Jelena
AU  - Bjelajac, Anđelika
AU  - Obradović, Nina
AU  - Pavlović, Vera P.
AU  - Mitrić, Miodrag
AU  - Janaćković, Đorđe
AU  - Rašić, Goran
AU  - Vlahović, Branislav
AU  - Pavlović, Vladimir B.
PY  - 2015
UR  - https://dais.sanu.ac.rs/123456789/764
AB  - The influence of electrochemical conditions and the heat treatment on the crystal structure and the microstructure evolution of TiO2 based nanotubes synthesized by the self-ordering anodization process is investigated in this work. The electrochemical anodization was performed at room temperature, for 30 minutes under 15, 20 and 25 V, with stirring. The as-anodized Ti foils were annealed in air at 450, 600, 650 and 700 °C for 30 minutes. The structure and the lattice dynamics of the samples has been studied by using XRD and Raman spectroscopy methods. The microstructure development of the 1-D TiO2 nanostructures has been analyzed by FESEM.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / IV Serbian Ceramic Society Conference, Belgrade, 21-23. September 2015
T1  - Influence of Synthesis Parameters on Structure of 1-D TiO2 nanostructures
SP  - 81
EP  - 81
UR  - https://hdl.handle.net/21.15107/rcub_dais_764
ER  - 

@conference{
author = "Vujančević, Jelena and Bjelajac, Anđelika and Obradović, Nina and Pavlović, Vera P. and Mitrić, Miodrag and Janaćković, Đorđe and Rašić, Goran and Vlahović, Branislav and Pavlović, Vladimir B.",
year = "2015",
abstract = "The influence of electrochemical conditions and the heat treatment on the crystal structure and the microstructure evolution of TiO2 based nanotubes synthesized by the self-ordering anodization process is investigated in this work. The electrochemical anodization was performed at room temperature, for 30 minutes under 15, 20 and 25 V, with stirring. The as-anodized Ti foils were annealed in air at 450, 600, 650 and 700 °C for 30 minutes. The structure and the lattice dynamics of the samples has been studied by using XRD and Raman spectroscopy methods. The microstructure development of the 1-D TiO2 nanostructures has been analyzed by FESEM.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / IV Serbian Ceramic Society Conference, Belgrade, 21-23. September 2015",
title = "Influence of Synthesis Parameters on Structure of 1-D TiO2 nanostructures",
pages = "81-81",
url = "https://hdl.handle.net/21.15107/rcub_dais_764"
}

Vujančević, J., Bjelajac, A., Obradović, N., Pavlović, V. P., Mitrić, M., Janaćković, Đ., Rašić, G., Vlahović, B.,& Pavlović, V. B.. (2015). Influence of Synthesis Parameters on Structure of 1-D TiO2 nanostructures. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / IV Serbian Ceramic Society Conference, Belgrade, 21-23. September 2015
Belgrade : Serbian Ceramic Society., 81-81.
https://hdl.handle.net/21.15107/rcub_dais_764

Vujančević J, Bjelajac A, Obradović N, Pavlović VP, Mitrić M, Janaćković Đ, Rašić G, Vlahović B, Pavlović VB. Influence of Synthesis Parameters on Structure of 1-D TiO2 nanostructures. in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / IV Serbian Ceramic Society Conference, Belgrade, 21-23. September 2015. 2015;:81-81.
https://hdl.handle.net/21.15107/rcub_dais_764 .

Vujančević, Jelena, Bjelajac, Anđelika, Obradović, Nina, Pavlović, Vera P., Mitrić, Miodrag, Janaćković, Đorđe, Rašić, Goran, Vlahović, Branislav, Pavlović, Vladimir B., "Influence of Synthesis Parameters on Structure of 1-D TiO2 nanostructures" in Advanced Ceramics and Application : new frontiers in multifunctional material science and processing : program and the book of abstracts / IV Serbian Ceramic Society Conference, Belgrade, 21-23. September 2015 (2015):81-81,
https://hdl.handle.net/21.15107/rcub_dais_764 .