First approach of the selective treatment of water by heterogeneous photocatalysis

被引：40

作者：

Robert, Didier ^{[1
]}

Piscopo, Antoine ^{[1
]}

Weber, Jean-Victor ^{[1
]}

机构：

[1] Univ Metz, Lab Chim & Applicat EA 3471, F-57500 St Avold, France

来源：

ENVIRONMENTAL CHEMISTRY LETTERS | 2004年 / 2卷 / 01期

关键词：

photocatalysis; titanium dioxide; selective photodegradation;

D O I：

10.1007/s10311-004-0063-x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Photocatalytic reactions using titanium dioxide are of great interest due to their possible applications to solar energy storage and detoxification of wastewater. However, TiO2 has usually given a very poor selectivity. Here we show that, using binary mixtures, it is possible to selectively degrade one molecular substance without any concentration change of another substance. We have studied the influence of the pH and TiO2 concentration on the selectivity of the degradation of benzamide and 4-hydroxybenzoic acid. With appropriate modifications of both parameters, the selectivity can be improved.

引用

页码：5 / 8

页数：4

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