Adsorption of water-soluble dyes onto modified resin

被引：162

作者：

Yu, Y ^{[1
]}

Zhang, YY

Wang, ZH

Qiu, MQ

机构：

[1] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China

[2] Nankai Univ, Coll Environm Sci & Engn, Tianjin 300071, Peoples R China

[3] Riyue Rongli Battery Ltd Co, Wuhan 430034, Peoples R China

来源：

CHEMOSPHERE | 2004年 / 54卷 / 03期

关键词：

modified resin; water-soluble dyes; adsorption; kinetic and thermodynamic;

D O I：

10.1016/S0045-6535(03)00654-4

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Adsorption behavior of five kinds of water-soluble dyes onto functionalized resin NKY has been dynamically and thermodynamically investigated. The results showed that the adsorption rates of dye K-GN, K-2BP, KN-R, AAB and 2G are all controlled by liquid film diffusion and particle diffusion. Equilibrium adsorption data can be well described by three-parameter equation. The first layer adsorption is the physical enhanced by chemical effect but multilayer adsorption is typically physical adsorption. Standard free energy change DeltaGdegrees and standard entropy change DeltaSdegrees indicate the adsorption of the dyes onto NKY can occur spontaneously. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：425 / 430

页数：6

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