Visible-light-induced photocatalytic activity of TiO2-xNy prepared by solvothermal process in urea-alcohol system

被引：77

作者：

Yin, S. ^{[1
]}

Aita, Y. ^{[1
]}

Komatsu, M. ^{[1
]}

Sato, T. ^{[1
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2006年 / 26卷 / 13期

关键词：

powders-chemical preparation; chemical properties; TiO2; photocatalyst;

D O I：

10.1016/j.jeurceramsoc.2005.05.012

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nitrogen-doped anatase, rutile and brookite titania photocatalyst TiO2-xNy which can be excited by visible light were prepared by mixing aqueous TiCl3 solutions with urea ((NH2)(2)CO) and various type of alcohols followed by solvothermal treatment at 190 degrees C. The phase composition, crystallinity, microstructure and specific surface area of titania powders greatly changed depending on the pH and type of solvents. Violet, yellowish and grayish TiO2-xNy with excellent visible light absorption and photocatalytic activity were prepared. The TiO2-xNy powders prepared in urea-methanol solution showed excellent photocatalytic ability for the oxidative destruction of nitrogen monoxide under irradiation of visible light lambda > 510 nm. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2735 / 2742

页数：8

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