Adsorption of 18-crown-6 from aqueous solution on granular activated carbon: A kinetic modeling study

被引：51

作者：

Azizian, Saeid ^{[1
]}

Yahyaei, Bahare ^{[1
]}

机构：

[1] Bu Ali Sina Univ, Fac Sci, Dept Chem, Hamadan, Iran

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2006年 / 299卷 / 01期

关键词：

adsorption; kinetics; 18-crown-6; pseudo-first-order; pseudo-second-order; granular activated carbon;

D O I：

10.1016/j.jcis.2006.01.058

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：

Granular activated carbon was used for the removal of 18-crown-6 from aqueous solution by adsorption. The influence of two experimental parameters, initial 18-crown-6 concentration and temperature, on the adsorption kinetics was evaluated. The kinetics data obtained were modeled by pseudo-first-order and pseudo-second-order models, respectively. The process of adsorption follows a pseudo-second-order rate model. The most important result of the present study is that the correlation coefficient is not a sufficient criterion for selection of a kinetic model, and therefore several criteria are suggested for its selection. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：112 / 115

页数：4

共 27 条

[1] Kinetic models of sorption: a theoretical analysis [J].