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

被引：213
|
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
收藏
页码：522 / 526
页数：5
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