Removal of Cationic Dyes from Aqueous Solution by Hydrophobically Modified Poly(acrylic Acid) Hydrogels

被引：19
|
作者：
Li, Shengfang [1 ,2 ]
Yan, Shilin [2 ]
Yu, Jianying [2 ]
机构：
[1] Huangshi Inst Technol, Sch Chem & Mat Engn, Huangshi 435003, Peoples R China
[2] Wuhan Univ Technol, Wuhan 430070, Peoples R China
来源：
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 2011年 / 50卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Adsorption; Cationic dye; Hydrogel; Hydrophobically; REACTIVE DYES; ADSORPTION; KINETICS; ACID-ACRYLAMIDE-METHACRYLATE); DECOLORIZATION; NETWORKS;
D O I：
10.1080/03602559.2010.551444
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Hydrophobically modified poly(acrylic acid) hydrogels were synthesized using acrylic acid (AA), methyl methacrylate (MMA), ethyl methacrylate (EMA) and butyl methacrylate (BMA) as copolymer monomers. These hydrogels were carried out for removal cationic dyes from aqueous solution. It was found that the adsorption of cationic dye depended on the length of the side chain, hydrophobic monomer (MMA, EMA and BMA) content and pH of the solution. Increasing the hydrophobic monomer content led to an increase in the adsorption of cationic dyes on the hydrogels. The adsorption kinetics and isotherms of hydrogels were in good agreement with pseudo-second-order equation and the Langmuir equation, respectively. The cationic dyes adsorption of hydrogels involved a mechanism that combined swelling and electrostatic and hydrophobic interaction.
引用
收藏
页码：783 / 790
页数：8
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