Photoactivity and phase stability of ZrO2-doped anatase-type TiO2 directly formed as nanometer-sized particles by hydrothermal conditions

被引：180

作者：

Hirano, M ^{[1
]}

Nakahara, C ^{[1
]}

Ota, K ^{[1
]}

Tanaike, O ^{[1
]}

Inagaki, M ^{[1
]}

机构：

[1] Aichi Inst Technol, Fac Engn, Dept Appl Chem, Toyota 4700392, Japan

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2003年 / 170卷 / 01期

关键词：

titanium oxide; anatase; zirconium oxide; methylene blue; photocatalytic activity;

D O I：

10.1016/S0022-4596(02)00013-0

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Anatase-type TiO2 doped with 4.7 and 12.4mol% ZrO2 that were directly precipitated as nanometer-sized particles from acidic precursor solutions of TiOSO4 and Zr(SO4)(2) by simultaneous hydrolysis under hydrothermal conditions at 200degreesC, showed higher photocatalytic activity than pure anatase-type TiO2 for the decomposition of methylene blue. The crystallite growth and the phase transformation from anatase-type to rutile-type structure caused by heating at high temperature were retarded by doping ZrO2 into TiO2. The anatase-type TiO2 doped with ZrO2 showed high phase stability and maintained anatase-type structure even after heating at 1000degreesC for 1 h. (C) 2002 Elsevier Science (USA). All rights reserved.

引用

页码：39 / 47

页数：9

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