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Ultrasonic Processing of Hierarchically Organized TiO2 Functional Nanomaterials

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2014
593.pdf (220.8Kb)
Authors
Dugandžić, Ivan
Jovanović, Dragana J.
Mančić, Lidija
Šaponjić, Zoran
Nedeljković, Jovan
Milošević, Olivera
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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. More...over, 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.

Keywords:
sonochemistry / TiO2 / titania / nanomaterials
Source:
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
Publisher:
  • Belgrade : Serbian Ceramic Society
Funding / projects:
  • Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion (RS-45020)

ISBN: 9788691562724

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_dais_596
URI
https://dais.sanu.ac.rs/123456789/596
Collections
  • ИТН САНУ - Општа колекција / ITS SASA - General collection
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - CONF
AU  - Dugandžić, Ivan
AU  - Jovanović, Dragana J.
AU  - Mančić, Lidija
AU  - Šaponjić, Zoran
AU  - Nedeljković, Jovan
AU  - Milošević, Olivera
PY  - 2014
UR  - https://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
UR  - https://hdl.handle.net/21.15107/rcub_dais_596
ER  - 
@conference{
author = "Dugandžić, Ivan and Jovanović, Dragana J. and Mančić, Lidija and Šaponjić, Zoran and Nedeljković, Jovan and Milošević, Olivera",
year = "2014",
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",
url = "https://hdl.handle.net/21.15107/rcub_dais_596"
}
Dugandžić, I., Jovanović, D. J., Mančić, L., Šaponjić, Z., Nedeljković, J.,& Milošević, O.. (2014). Ultrasonic Processing of Hierarchically Organized TiO2 Functional Nanomaterials. in 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
Belgrade : Serbian Ceramic Society., 61-61.
https://hdl.handle.net/21.15107/rcub_dais_596
Dugandžić I, Jovanović DJ, Mančić L, Šaponjić Z, Nedeljković J, Milošević O. Ultrasonic Processing of Hierarchically Organized TiO2 Functional Nanomaterials. in 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.
https://hdl.handle.net/21.15107/rcub_dais_596 .
Dugandžić, Ivan, Jovanović, Dragana J., Mančić, Lidija, Šaponjić, Zoran, Nedeljković, Jovan, Milošević, Olivera, "Ultrasonic Processing of Hierarchically Organized TiO2 Functional Nanomaterials" in 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,
https://hdl.handle.net/21.15107/rcub_dais_596 .

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