Heterogeneous photo-fenton degradation of an azo dye in aqueous H2O2/iron oxide dispersions at neutral pHs

被引：54

作者：

He, J ^{[1
]}

Tao, X ^{[1
]}

Ma, WH ^{[1
]}

Zhao, JC ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Lab Photochem, Beijing 100080, Peoples R China

来源：

CHEMISTRY LETTERS | 2002年 / 01期

关键词：

D O I：

10.1246/cl.2002.86

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The photodegradation of Mordant Yellow 10 (MY10), a kind of azo dye, in aqueous dispersions of H2O2/hematitc (alpha-Fe2O3), goethite (alpha-FeOOH) and akaganeite (beta-FeOOH) at neutral pHs under UV-light irradiation was examined. The fastest degradation rate of MY10 was obtained with goethite. The formation of .OH in the photoreaction process was detected by ESR spin-trapping technique. A possible mechanism of heterogeneous photo-Fenton reaction was proposed.

引用

页码：86 / 87

页数：2

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