Adsorption of Zn(II) on dialdehyde m-phenylenediamine starch

被引：7
|
作者：
Liu, Jun-tao [1 ]
Dong, Zheng-ping [1 ]
Ding, Wen [1 ]
Zhao, Ping [1 ]
Sun, Jian [1 ]
Jin, Xiao-dong [1 ]
Li, Rong [1 ]
机构：
[1] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China
来源：
WATER SCIENCE AND TECHNOLOGY | 2012年 / 66卷 / 02期
关键词：
adsorption; dialdehyde m-phenylenediamine starch; dialdehyde starch; Zn(II); BAGASSE FLY-ASH; BIOMASS OEDOGONIUM SP; AQUEOUS-SOLUTIONS; WASTE-WATER; REMOVAL; IONS; ZINC; BIOSORPTION; CADMIUM; SORPTION;
D O I：
10.2166/wst.2012.168
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A new chelating material dialdehyde m-phenylenediamine starch (DASMPA) was synthesized by reacting m-phenylenediamine with dialdehyde starch. The obtained material was characterized by element analysis and Fourier transform infrared (FT-IR) spectra. The FT-IR of DASMPA showed an absorption peak at 1605.95 cm(-1) indicating the formation of a Schiff base (C=N). Adsorption activity of DASMPA for Zn2+ was also investigated in terms of contact time, pH, the initial Zn(II) concentration and temperature, the results revealed that pH = 5,t = 1 h were the optimal conditions. With the degree of substitution (DS) of the DASMPA increased, the adsorption capacity increased gradually. The adsorption equilibrium data correlated well with Freundlich isotherm. Moreover, lower temperature was preferable for the process as it was exothermic.
引用
收藏
页码：321 / 327
页数：7
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