Photocatalytic Activity of TiO2 Modified by Heteropolytungstate Acid

被引：1

作者：

Liu, Jun ^{[1
]}

Lue, Xiaomeng ^{[2
]}

Xie, Jimin ^{[2
]}

Zhang, Hui ^{[2
]}

Gu, Zhanjun ^{[2
]}

机构：

[1] Pingdingshan Inst Technol, Dept Environm Engn, Pingdingshan 467001, Peoples R China

[2] Jiangsu Univ, Sch Chem & Chem Engn, Zhengzhou 212013, Peoples R China

来源：

ADVANCED MATERIALS AND PROCESSING | 2007年 / 26-28卷

关键词：

photocatalytic; TiO2; heteropolytungstate acid;

D O I：

10.4028/www.scientific.net/AMR.26-28.1083

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

HPW/TiO2 photocatalysts were prepared by impregnation of TiO2 powder with aqueous solutions of HPW (heteropolytungstate acid, abbreviated as HPW) and characterized by BET specific surface area, UV-vis/DRS and FTIR. Photocatalytic performance of HPW/TiO2 catalysts was investigated with HCHO as test molecular in a static photoreactor under the illumination of 11 W UV light. The results indicated that the catalytic performance of the decomposition of HCHO over HPW/TiO2 was the best when the loading of HPW is 21.9 Wt%. With HPW loading content increasing, the partial reduction product of methanol was observed. The synergistic effects of TiO2 with HPW were obvious and the probable mechanism was suggested.

引用

页码：1083 / +

页数：6

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