PROBING PHOTOCATALYTIC REACTIONS IN SEMICONDUCTOR SYSTEMS - STUDY OF THE CHEMICAL INTERMEDIATES IN 4-CHLOROPHENOL DEGRADATION BY A VARIETY OF METHODS

被引：21

作者：

GRAY, KA ^{[1
]}

STAFFORD, U ^{[1
]}

机构：

[1] UNIV NOTRE DAME, DEPT CHEM ENGN, NOTRE DAME, IN 46556 USA

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 1994年 / 20卷 / 08期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1163/156856794X00586

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The photocatalytic transformation of 4-chlorophenol (4-CP) has been studied in aqueous slurries, on powders and on immobilized particulate films of TiO2. These results are compared to those obtained using gamma and pulse radiolysis in order to establish a comprehensive picture of the 4-CP reaction pathway in TiO2 systems. The disappearance of 4-CP and its reaction intermediates in TiO2 slurries involves a combination of hydroxyl radical oxidation, direct electron transfer and surface chemical reactions.

引用

页码：835 / 853

页数：19

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