Oxidation of chlorophenols with hydrogen peroxide in the presence of goethite

被引：115

作者：

Lu, MC ^{[1
]}

机构：

[1] Chia Nan Coll Pharm & Sci, Dept Environm Engn & Hlth, Tainan 717, Taiwan

来源：

CHEMOSPHERE | 2000年 / 40卷 / 02期

关键词：

goethite; hydrogen peroxide; Fenton reaction; chlorophenols; AOPs;

D O I：

10.1016/S0045-6535(99)00213-1

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The use of goethite (alpha-FeOOH) and hydrogen peroxide was recently found that they could effectively oxidize organic compounds. The study was to investigate the effect of goethite particle size: goethite concentration, Fe2+ and Fe3+ on the 2-chlorophenol oxidation. Results indicated that 2-chlorophenol can be decomposed with hydrogen peroxide catalyzed by goethite and the oxidation rate increased with decreasing goethite particle size. 2-Chlorophenol degradation was almost retarded with 0.8 g/l of goethite because ferrous ions could not be produced at this condition. Addition of Fe2+ and Fe3+ can enhance the catalytic oxidation rate of 2-chlorophenol very efficiently. In conclusion, the main mechanism of goethite catalyzing hydrogen peroxide to oxidize 2-chlorophenol may be due to the catalysis of ferrous ions and goethite surface. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：125 / 130

页数：6

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