Adsorption of dissolved Reactive red dye from aqueous phase onto activated carbon prepared from agricultural waste

被引：255

作者：

Senthilkumaar, S. ^{[1
]}

Kalaamani, P.

Porkodi, K.

Varadarajan, P. R.

Subburaam, C. V.

机构：

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

[2] NGM Coll, Dept Chem, Pollachi 642001, India

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

来源：

BIORESOURCE TECHNOLOGY | 2006年 / 97卷 / 14期

关键词：

activated carbons; cellulosic fibres; reactive red dye; adsorption kinetics; mechanism;

D O I：

10.1016/j.biortech.2005.08.001

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The adsorption of Reactive red dye (RR) onto Coconut tree flower carbon (CFC) and Jute fibre carbon (JFC) from aqueous solution was investigated. Adsorption studies were carried out at different initial dye concentrations, initial solution pH and adsorbent doses. The kinetic studies were also conducted; the adsorption of Reactive red onto CFC and JFC followed pseudosecond-order rate equation. The effective diffusion coefficient was evaluated to establish the film diffusion mechanism. Quantitative removal of Reactive red dye was achieved at strongly acidic conditions for both the carbons studied. The adsorption isotherm data were fitted well to Langmuir isotherm and the adsorption capacity were found to be 181.9 and 200 mg/g for CFC and JFC, respectively. The overall rate of dye adsorption appeared to be controlled by chemisorption, in this case in accordance with poor desorption studies. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1618 / 1625

页数：8

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