Lignin-based activated carbons for adsorption of sodium dodecylbenzene sulfonate: Equilibrium and kinetic studies

被引：52

作者：

Cotoruelo, Luis M. ^{[1
]}

Marques, Maria D.

Rodriguez-Mirasol, Jose

Rodriguez, Jian J. ^{[2
]}

Cordero, Tomas

机构：

[1] Univ Malaga, Dept Ingn Quim, Fac Ciencias, E-29071 Malaga, Spain

[2] Univ Autonoma Madrid, E-28049 Madrid, Spain

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2009年 / 332卷 / 01期

关键词：

Adsorption; Lignin; Activated carbon; Equilibrium; Kinetics; Sodium dodecylbenzene sulfonate; EUCALYPTUS KRAFT LIGNIN; WASTE-WATER; ANIONIC SURFACTANTS; AROMATIC-COMPOUNDS; SORPTION; REMOVAL; POLLUTANTS; CHEMISTRY; RECOVERY; SYSTEMS;

D O I：

10.1016/j.jcis.2008.12.031

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 sodium dodecylbenzene sulfonate (SDBS) from its aqueous solution at different temperatures has been studied using three activated carbons prepared in our laboratory. Lignin was used as raw material for the preparation of activated carbons (ACs). The results of the adsorption equilibrium were analyzed and fitted to the Langmuir Model. Thermodynamic magnitudes were estimated as well, and their values indicated that the adsorption processes were spontaneous and exothermic. The kinetic study showed that the processes are of second apparent order related to the concentration of the vacant active centers on the surface of the activated carbons. The values of the effective internal diffusion coefficients have been calculated applying the equations developed by Crank and Vermeulen. (c) 2008 Elsevier Inc. All rights reserved.

引用

页码：39 / 45

页数：7

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