Potential biosorbent based on sugarcane bagasse modified with tetraethylenepentamine for removal of eosin Y

被引：36
|
作者：
Jiang, Gang-Biao [1 ]
Lin, Zuan-Tao [1 ]
Huang, Xiao-Yi [1 ]
Zheng, Yu-Qiang [1 ]
Ren, Cui-Cui [1 ]
Huang, Chen-Ke [1 ]
Huang, Zhi-Jian [2 ]
机构：
[1] S China Agr Univ, Dept Pharmaceut Engn, Coll Nat Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China
[2] Sun Yat Sen Univ, Sch Marine Sci, Guangzhou 510275, Guangdong, Peoples R China
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2012年 / 50卷 / 03期
基金：
美国国家科学基金会;
关键词：
Sugarcane bagasse; Chemical modification; Biosorbent; Adsorption; Anionic dye; CHEMICAL-MODIFICATION; ANION-EXCHANGERS; ADSORPTION; SORPTION; EQUILIBRIUM; CELLULOSE; CHITOSAN; DYES;
D O I：
10.1016/j.ijbiomac.2011.12.030
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Tetraethylenepentamine (TEPA) modified sugarcane bagasse (SB), a novel biosorbent (TEPA-MSB), was proved to be an effective adsorbent for anionic dyes due to the introduced functional amino groups. FTIR, TG and DSC analysis were employed to characterize the sorbent. The effects of pH, temperature, contact time and initial concentration of dye on the adsorption of eosin Y were investigated. The experimental data fit very well to the Langmuir model, giving a maximum sorption capacity of 399.04 mg/g at 25 degrees C. And the kinetic data were well described by the pseudo-second-order kinetic model. pH 6 was the optimal pH for eosin Y adsorption, and the maximum adsorption capacity of TEPA-MSB calculated by Langmuir model was 18 times higher than that of SB. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：707 / 712
页数：6
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