Effect of TiCl4 Concentration and Acidity on Size and Phase of TiO2 Nanopowders Prepared by Non-Hydrolytic Sol-Gel Method

Jian Sun; Yan Xiang Wang; Xiao Yan Li

doi:10.4028/www.scientific.net/AMR.412.32

Paper Titles

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Effect of TiCl₄ Concentration and Acidity on Size and Phase of TiO₂ Nanopowders Prepared by Non-Hydrolytic Sol-Gel Method
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 412Effect of TiCl4 Concentration and Acidity on Size...

Effect of TiCl₄ Concentration and Acidity on Size and Phase of TiO₂ Nanopowders Prepared by Non-Hydrolytic Sol-Gel Method

Abstract:

TiO₂ nanopowders were synthesized by non-hydrolytic sol−gel method. Effects of TiCl₄ concentration and acidity on the properties of TiO₂ nanopowders were investigated. The results showed that the average grain size of TiO₂ decreased with the increasing of TiCl₄ concentration. H⁺ can inhibit the growth of TiO₂ particles and Cl^- is conducive to the formation of rutile phase. When 2.06M HCl was used as the reaction solution, TiO₂microspheres with diameter 2μm was obtained, and TiO₂microspheres was composed of anatase and rutile phase.