Adsorption of an anionic azo dye by chitosan/kaolin/γ-Fe2O3 composites

被引：214

作者：

Zhu, Hua-Yue ^{[1
,2
]}

Jiang, Ru ^{[1
]}

Xiao, Ling ^{[2
]}

机构：

[1] Taizhou Univ, Dept Environm Engn, Linhai 317000, Peoples R China

[2] Wuhan Univ, Coll Resource & Environm Sci, Key Lab Biomass Resource Chem & Environm Biotechn, Wuhan 430072, Peoples R China

来源：

APPLIED CLAY SCIENCE | 2010年 / 48卷 / 03期

关键词：

Kaolin; Chitosan; gamma-Fe2O3; Anionic dye; Adsorption; AQUEOUS-SOLUTIONS; CONGO RED; METHYL-ORANGE; CHITOSAN; DEGRADATION; REMOVAL; KAOLIN; DECOLORIZATION;

D O I：

10.1016/j.clay.2010.02.003

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：

Chitosan/kaolin/nanosized gamma-Fe2O3 composites were prepared by a microemulsion process and characterized by TEM, SEM and WAXRD. Many pores and pleats were visible on the surface of the composites and provided a good condition for dye adsorption. Methyl orange (MO) was selected as a model anionic azo dye to examine the adsorption behavior of the composites. Amounts of 71.0% of MO were adsorbed within 180 min from 20 mgL(-1) MO solution at pH = 6.0 by 1.0 g L-1 adsorbent dosage. Therefore, the composites can be used as a low-cost alternative for anionic dyes removal from industrial wastewater. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：522 / 526

页数：5

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