Photocatalytic oxidation of chlorophenols in the presence of manganese ions

被引：15

作者：

Chen, JN ^{[1
]}

Chan, YC

Lu, MC

机构：

[1] Natl Chiao Tung Univ, Inst Environm Engn, Hsinchu 30039, Taiwan

[2] Chia Nan Coll Pharm & Sci, Dept Environm Engn & Hlth, Tainan 71710, Taiwan

来源：

WATER SCIENCE AND TECHNOLOGY | 1999年 / 39卷 / 10-11期

关键词：

chlorophenols; manganese ion; photocatalytic degradation; ultraviolet light;

D O I：

10.1016/S0273-1223(99)00282-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The decomposition of chlorophenols in aqueous solution with UV-illuminated TiO2 suspensions in the presence of manganese ions was studied. It was found that the removal rare of chlorophenols would be the highest at pH 3 in the presence of 1.18x10(-4) M manganese ion. The effect of ionic strength on the 2-CP decomposition can be ignored in the range from 0.1 to 0.005 M for NaClO4. This study is also to explore the relationship between the adsorption rate and reaction rate. Results showed that the more the adsorption rate the more the decomposition rate for the three chlorophenols. Manganese ions can increase the photocatalytic oxidation of 2-chlorophenol in terms of DOC. The relationship between temperature and reaction rate for 2-CP is k = 0.0043 T - 1.2146. (C) 1999 Published by Elsevier Science Ltd on behalf of the IAWQ. All rights reserved.

引用

页码：225 / 230

页数：6

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