Photocatalytic decolorization of rhodamine B dye as a model of dissolved organic compounds: Influence of dissolved inorganic chloride salts in seawater of the Sea of Japan

被引：47

作者：

Makita, Makoto ^{[1
]}

Harata, Akira ^{[1
]}

机构：

[1] Kyushu Univ, Dept Mol & Mat Sci, Fukuoka 8168580, Japan

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2008年 / 47卷 / 05期

关键词：

photocatalysis; inorganic chloride salts; rhodamine B;

D O I：

10.1016/j.cep.2007.01.036

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The effects of salinity on the photooxidative decolorization of rhodamine B in a variety of aqueous salt solutions were studied, aiming at the purification of seawater using a photocatalytic reaction. It was demonstrated that the photooxidative decolorization of rhodamine B in chloride salt solutions could proceed. It was found that the reaction was accelerated in the presence of a certain amount of salt and that a 2.0 wt% salt solution showed the fastest decolorization rate. Metal ions, Na+ and Mg2+, caused the enhancement of the photocatalytic activity at the same salt concentration as seawater. The reaction rate of photooxidative dye decolorization in seawater was slower than that in salt water although Na+ and Cl- are the major ions in seawater. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：859 / 863

页数：5

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