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

Authorized Users Only
2012
Authors
Dugandžić, Ivan
Jovanović, Dragana J.
Mančić, Lidija
Zheng, Nan
Ahrenkiel, Scott P.
Milošević, Olivera
Šaponjić, Zoran
Nedeljković, Jovan
Article (Published version)
Metadata
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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: ascorbi...c 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.

Keywords:
TiO2 nanoparticles / spray drying and pyrolysis / surface modification / charge-transfer complex / optical properties
Source:
Journal of Nanoparticle Research, 2012, 14, 1157-
Publisher:
  • Amsterdam : Springer Netherlands
Projects:
  • Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion (RS-45020)

DOI: 10.1007/s11051-012-1157-1

ISSN: 1388-0764 (Print); 1572-896X (Online)

WoS: 000309341200021

Scopus: 2-s2.0-84865569378
[ Google Scholar ]
17
15
URI
http://dais.sanu.ac.rs/123456789/464
Collections
  • ITN SANU - Opšta kolekcija / ITS SASA - General collection
Institution
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
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 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, 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 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 .

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