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Title Synthesis of Single-Phase Anatase TiO2 Nanoparticles by Hydrothermal Treatment
Authors Montazeri-Pour, M.
Riahi-Noori, N.
Mehdikhani, A.
Sarraf-Mamoory, R.
Keywords Hydrothermal
TiO2
Nanoparticles
Anatase
Peptization
Tetraisopropyl orthotitanate
Acetic acid
Autoclave
Type Conference Papers
Date of Issue 2012
URI http://essuir.sumdu.edu.ua/handle/123456789/34888
Publisher Sumy State University
License
Citation Synthesis of Single-Phase Anatase TiO2 Nanoparticles by Hydrothermal Treatment [Текст] / M. Montazeri-Pour, N. Riahi-Noori, A. Mehdikhani, R. Sarraf-Mamoory // Nanomaterials: Applications & Properties (NAP-2012) : 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2012. - V.1, No1. - 01PCN22
Abstract Pure anatase powders of titanium dioxide with a homogeneous nanosized particles distribution were prepared by a facile hydrothermal route using solution of acetic acid and tetraisopropyl orthotitanate as the precursors with a molar ratio of 1:1. The modified hydrolyzed alkoxide was treated at various temperatures under different autogenic pressures. Two different reactors were employed as autoclaves for heating and generation of high pressures during the synthesis and crystallization of TiO2 nanoparticles. The characteristics of TiO2 powders obtained under various synthesis conditions were verified using X-Ray Diffraction (XRD) and Field Emission Scanning Electron Microscopy (FE-SEM). The results indicated that particles size of the formed TiO2 could be finely tuned by varying the experimental parameters of temperature, pressure and the amount of nitric acid in the peptization step. TiO2 nanoparticles with good dispersion and mean size of about 9 nm could be seen in FE-SEM image of sample synthesized under temperature of 160 °C for 12 h using more nitric acid in the peptization step. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/34888
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