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

2013
Authors
Dugandžić, Ivan
Jovanović, Dragana J.

Mančić, Lidija

Šaponjić, Zoran

Nedeljković, Jovan

Milošević, Olivera

Conference object (Published version)
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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 mo...rphology 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.
Keywords:
TiO2 / colloidal nanoparticles / aerosolSource:
EUROMAT 2013: European Congress and Exhibition on Advanced Materials and Processes, Sevilla 8-13, October, 2013: CD Book of Abstracts, 2013Publisher:
- Sevilla : FEMS
Funding / projects:
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Dugandžić, Ivan AU - Jovanović, Dragana J. AU - Mančić, Lidija AU - Šaponjić, Zoran AU - Nedeljković, Jovan AU - Milošević, Olivera PY - 2013 UR - https://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 UR - https://hdl.handle.net/21.15107/rcub_dais_819 ER -
@conference{ author = "Dugandžić, Ivan and Jovanović, Dragana J. and Mančić, Lidija and Šaponjić, Zoran and Nedeljković, Jovan and Milošević, Olivera", year = "2013", 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", url = "https://hdl.handle.net/21.15107/rcub_dais_819" }
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. in EUROMAT 2013: European Congress and Exhibition on Advanced Materials and Processes, Sevilla 8-13, October, 2013: CD Book of Abstracts Sevilla : FEMS.. https://hdl.handle.net/21.15107/rcub_dais_819
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. in EUROMAT 2013: European Congress and Exhibition on Advanced Materials and Processes, Sevilla 8-13, October, 2013: CD Book of Abstracts. 2013;. https://hdl.handle.net/21.15107/rcub_dais_819 .
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" in EUROMAT 2013: European Congress and Exhibition on Advanced Materials and Processes, Sevilla 8-13, October, 2013: CD Book of Abstracts (2013), https://hdl.handle.net/21.15107/rcub_dais_819 .