Adsorption of methylene blue on Cu(II)-exchanged montmorillonite

被引：90

作者：

Ma, YL ^{[1
]}

Xu, ZR

Guo, T

You, P

机构：

[1] Ningxia Univ, Coll Chem & Chem Engn, Yinchuan 750021, Peoples R China

[2] Zhejiang Univ, Inst Feed Sci, Hangzhou 310029, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2004年 / 280卷 / 02期

关键词：

montmorillonite; copper; methylene blue; adsorption;

D O I：

10.1016/j.jcis.2004.08.044

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Cu2+-exchanged montmorillonite (CEM) was prepared using the method of ion exchange reaction. The goal was to determine the adsorption of methylene blue (MB) onto montmorillonite and CEM. The results showed that treatment with Cu2+ slightly reduced the adsorption of montmorillonite. Temperature, pH value, and ionic strength in the medium had greater or smaller effects on interaction between NIB and the clay. The data obtained from MB adsorption onto the tested adsorbents followed the Langmuir and BET equations. Also, the adsorption processes were endothermic and spontaneous in nature. (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：283 / 288

页数：6

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