Adsorption characteristics of Reactive Black 5 onto chitosan beads cross-linked with epichlorohydrin

被引：69
|
作者：
Kim, Tae-Young [1 ]
Park, Seung-Shik [1 ]
Cho, Sung-Yong [1 ,2 ]
机构：
[1] Chonnam Natl Univ, Dept Environm Engn, Kwangju 500757, South Korea
[2] Chonnam Natl Univ, Environm Res Inst, Kwangju 500757, South Korea
来源：
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2012年 / 18卷 / 04期
关键词：
Adsorption; Chitosan; Epichlorohydrin; Equilibrium; Kinetics; Reactive Black 5; AQUEOUS-SOLUTIONS; DYE; ASH; KINETICS; REMOVAL; IONS; ACID;
D O I：
10.1016/j.jiec.2012.02.006
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this study, epichlorohydrin cross-linked chitosan beads were used for the removal of Reactive Black 5 (RB 5) from aqueous solution. The adsorption of RB 5 onto the cross-linked chitosan beads was strongly pH dependent. The adsorption capacity of RB 5 onto the cross-linked chitosan beads increased with increasing temperature, indicating the endothermic nature of the adsorption process. The thermodynamic parameters, namely the Gibbs free energy, enthalpy and entropy of the RB 5 adsorption process were calculated. The kinetic parameters were measured in a batch adsorber to analyze the rate of adsorption of RB 5 onto the cross-linked chitosan beads. (C) 2012 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：1458 / 1464
页数：7
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