Adsorption of acid dye onto organobentonite

被引：261

作者：

Baskaralingam, P

Pulikesi, M

Elango, D

Ramamurthi, V

Sivanesan, S ^{[1
]}

机构：

[1] Anna Univ, AC Coll Technol, Dept Chem Engn, Madras 6000025, Tamil Nadu, India

[2] Hindustan Coll Engn, Dept Civil Engn, Madras 21, Tamil Nadu, India

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2006年 / 128卷 / 2-3期

关键词：

adsorption; acid dye; organoclay; isotherms; kinetics;

D O I：

10.1016/j.jhazmat.2005.07.049

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 [工学]; 0830 [环境科学与工程];

摘要：

Removal of Acid Red 151 from aqueous solution at different dye concentrations, adsorbent doses and pH has been studied. The bentonite clay has been modified using cationic surfactants, which has been confirmed using XRD and FT-IR. analyses. Experimental result has shown that the acidic pH favours the adsorption. The adsorption isotherms are described by means of Langmuir and Freundlich isotherms. The adsorption capacity has been found to be 357.14 and 416.66 mg g(-1) for the cetyldimethylbenzylanitnonium chloride-bentonite (CDBA-bent) and cetylpyridinium chloride-bentonite (CP-bent), respectively. Kinetic studies show that the adsorption followed second-order kinetics. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：138 / 144

页数：7

共 30 条

[1]

Characterization and determination of the thermodynamic and kinetic properties of p-CP adsorption onto organophilic bentonite from aqueous solution [J].