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Comparison of nano-particulate TiO2 prepared from titanium tetrachloride and titanium tetraisopropoxide

Lookup NU author(s): Dr Terry Egerton

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Abstract

Nanocrystalline titanium dioxides (TiO2) prepared from (a) titanium tetrachloride (TiCl4) and (b) titanium tetraisopropoxide (TTIP) have been compared. The effect of the reaction parameters on the phase formation of TiO2 was investigated systematically. For TiO2 prepared by hydrolysis of TiCl4, the crystal phase changed with the speed of TiCl4 addition and slow addition favoured the formation of rutile. For TiO2 prepared by hydrolysis of Ti(OC3H7)(4), the reduction in hydrolysis rate associated with lower reaction temperatures promoted rutile formation. For both TiCl4 and TTIP derived samples, increasing the anatase content decreased the measured rate of photocatalytic oxidation of isopropanol to acetone. (C) 2012 Elsevier B.V. All rights reserved.


Publication metadata

Author(s): Wang LW, Yuan ZH, Egerton TA

Publication type: Article

Publication status: Published

Journal: Materials Chemistry and Physics

Year: 2012

Volume: 133

Issue: 1

Pages: 304-310

Print publication date: 01/03/2012

ISSN (print): 0254-0584

ISSN (electronic): 1879-3312

Publisher: Elsevier SA

URL: http://dx.doi.org/10.1016/j.matchemphys.2012.01.028

DOI: 10.1016/j.matchemphys.2012.01.028


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