Adsorption of Rhodamine-B from aqueous solution using treated rice husk-based activated carbon

被引：221

作者：

Ding, Lili ^{[1
]}

Zou, Bo ^{[1
]}

Gao, Wei ^{[2
]}

Liu, Qi ^{[1
]}

Wang, Zichen ^{[1
]}

Guo, Yupeng ^{[1
]}

Wang, Xiaofeng ^{[1
]}

Liu, Yanhua ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, Changchun 130012, Peoples R China

[2] Heilongjiang Inst Sci & Technol, Coll Mat Sci & Engn, Harbin 150022, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2014年 / 446卷

关键词：

Adsorption; Dye; Activated carbon; Kinetics; Thermodynamics; LOW-COST ADSORBENTS; DYE ADSORPTION; REMOVAL;

D O I：

10.1016/j.colsurfa.2014.01.030

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：

The adsorption of Rhodamine-B (RhB) onto treated rice husk-based activated carbon was investigated in this paper. The influences of initial RhB concentration, temperature and pH on dye adsorption were analyzed. Initial RhB concentration and temperature played important roles in this adsorption process, and pH had a little effect on RhB adsorption. Adsorption kinetics, equilibrium and thermodynamics study was carried out. Results demonstrated that pseudo-second order kinetic model represented the adsorption kinetics of RhB well. Adsorption equilibrium data were well described by Langmuir isotherm model. Thermodynamic parameters, including the Gibb's free energy change (Delta G), standard enthalpy change (Delta H) and standard entropy change (Delta S), revealed that this adsorption process was spontaneous and endothermic. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：1 / 7

页数：7

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