Adsorption of methylene blue onto jute fiber carbon: kinetics and equilibrium studies

被引：538

作者：

Senthilkumaar, S ^{[1
]}

Varadarajan, PR

Porkodi, K

Subbhuraam, C

机构：

[1] PSG Coll Technol, Fac Engn, Dept Chem, Coimbatore 641004, Tamil Nadu, India

[2] Bharathiar Univ, Dept Environm Sci, Coimbatore 641046, Tamil Nadu, India

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2005年 / 284卷 / 01期

关键词：

activated carbon; methylene blue; adsorption isotherm; equilibrium studies; kinetic models;

D O I：

10.1016/j.jcis.2004.09.027

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：

Jute fiber obtained from the stem of a plant was used to prepare activated carbon using phosphoric acid. Feasibility of employing this jute fiber activated carbon (JFC) for the removal of Methylene blue (MB) from aqueous solution was investigated. The adsorption of MB on JFC has found to dependent on contact time, MB concentration and pH. Experimental result follows Langmuir isotherm model and the capacity was found to be 225.64 mg/g. The optimum pH for the MB removal was found to be 5-10. The kinetic data obtained at different concentrations have been analyzed using a pseudo-first-order, pseudo-second-order equation, intraparticle diffusion and Elovich equation. Among the kinetic models studied, the intraparticle diffusion was the best applicable model to describe the adsorption of MB onto JFC. (c) 2004 Elsevier Inc. All rights reserved.

引用

页码：78 / 82

页数：5

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