Adsorption of 2,4-dinitrophenol and 2,4-dichlorophenol on Cationic Surfactant modified red soil

被引：4

作者：

Liao Min

机构：

[1] Zhejiang University,College of Environmental and Resource Sciences, Department of Resources Science

来源：

Chinese Journal of Geochemistry | 2004年 / 23卷 / 4期

关键词：

2,4-dinitrophenol; 2,4-dichlorophenol; adsorption; cationic surfactant; red soil;

D O I：

10.1007/BF02871301

中图分类号：

学科分类号：

摘要：

Adsorption isotherms of 2,4-dinitrophenol and 2,4-dichlorophenol on hexadecyltrimethylammonium (HDTMA) bromide modified red soil under different ionic strength, divalent cation Cu2+ or different pH conditions were studied. All the adsorption isotherms were well fitted to the Freundlich equation. The adsorption capacities of 2,4-dinitrophenol or 2,4-dichlorophenol were dramatically enhanced by HDTMA treatment of red soil. The increase of ionic strength and the addition of divalent heavy metal cation Cu2+ significantly enhanced the adsorption of 2,4-dinitrophenol or 2,4-dichlorophenol on the HDTMA-modified red soil. Adsorption capacities of HDTMA-modified red soil for 2,4-dinitrophenol and 2,4-dichlorophenol gradually increased with decreasing pH in the aqueous phase.

引用

页码：301 / 308

页数：7

共 63 条

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