Photo-Fenton reaction using a nanocomposite

被引：13

作者：

Yue, PL ^{[1
]}

Feng, JY ^{[1
]}

Hu, X ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Chem Engn, Kowloon, Hong Kong, Peoples R China

来源：

WATER SCIENCE AND TECHNOLOGY | 2004年 / 49卷 / 04期

关键词：

Orange II degradation; photo-Fenton reaction; UV-light; wastewater treatment;

D O I：

10.2166/wst.2004.0228

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A laponite RD clay-based Fe nanocomposite (Fe-Lap-RD) has been synthesized by the so-called pillaring technique. The X-ray diffraction (XRD) results reveal that the Fe-Lap-RD mainly consists of Fe2O3 (maghemite) crystallites and Fe2SiO10(OH)(2) (iron silicate hydroxide) crystallites. The photo-catalytic activity of the Fe-Lap-RD for the degradation of an organic azo dye Orange II is examined. It is found that the rate of mineralization of Orange II is slower than that of discoloration. Under optimal conditions, 100% color and 70% total organic carbon (TOC) of 0.2 mM Orange II can be removed in 45 and 90 minutes, respectively. In addition, the performance of a strongly acidic type of ion exchange resin based catalyst as a heterogeneous photo-Fenton catalyst for the degradation of salicylic acid is also discussed.

引用

页码：85 / 90

页数：6

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