Adsorption capacity of starch-grafted polyacrylamide for Cu(Ⅱ)

doi:10.11894/1005-829x.2014.34(2).015

INDUSTRIAL WATER TREATMENT ›› 2014, Vol. 34 ›› Issue (2): 15-18. doi: 10.11894/1005-829x.2014.34(2).015

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Adsorption capacity of starch-grafted polyacrylamide for Cu(Ⅱ)

Wei Xiaoyan^1,3, Tan Jun^1,3, Ouyang Yuxia^1,3, Fan Juhong², Liu Rui²

1. Department of Chemical and Textile Engineering of Nanhu College of Jiaxing University, Jiaxing 314001, China;
2. Department of Ecological Environmental Research in Yangtze Delta Region Institute of Zhejiang, Jiaxing 314006, China;
3. College of Biological and Chemical Engineering of Jiaxing University, Jiaxing 314001, China

Received:2013-10-08 Online:2014-02-20 Published:2014-02-24

淀粉接枝丙烯酰胺吸附铜离子性能研究

韦晓燕^1,3, 谭军^1,3, 欧阳玉霞^1,3, 范举红², 刘锐²

1. 嘉兴学院南湖学院化学与纺织工程系, 浙江嘉兴 314001;
2. 浙江清华长三角研究院生态环境研究所, 浙江嘉兴 314006;
3. 嘉兴学院生物与化学工程学院, 浙江嘉兴 314001

通讯作者: 谭军，电话：15067330775，E-mail：tanjunzjxu@126.com E-mail:tanjunzjxu@126.com
作者简介:韦晓燕（1974-），副教授。电话：13819092382，E-mail：weixiaoyan@mail.zjxu.edu.cn
基金资助:
国家863 高技术发展计划重大项目（2012AA06A304）；浙江省公益性技术应用研究计划项目（2012C31028）

Abstract

Abstract:

Starch-grafted polyacrylamide has been synthesized via grafting polymerization using corn starch as raw material. The product has been characterized by infrared spectroscopy, elemental analysis and intrinsic viscosity. The effects of pH, adsorption time and initial Cu²⁺ concentration on the adsorption capacity of the product for Cu(Ⅱ) are investigated. Moreover, the adsorption dynamics and isothermal adsorption are studied. The results show that when the pH is 6, the adsorption capacity of the product for Cu(Ⅱ) from aqueous solution is very good. The adsorption process is in accordance with Freundlich isotherm, and coincides with pseudo second order dynamics equation. Its chemical reaction is in adsorption controlling step.

Key words: starch-grafted polyacrylamide, isotherm adsorption, adsorption kinetics, Cu²⁺

摘要：

以玉米淀粉为原料，经接枝共聚反应合成了淀粉接枝丙烯酰胺。对产物进行了红外光谱、元素分析和极限黏度表征。考察了pH、接触时间、Cu²⁺初始浓度对产物吸附Cu²⁺的影响，并进行了吸附动力学、等温吸附研究。结果表明：在pH=6时，淀粉接枝丙烯酰胺对水溶液中的Cu²⁺有良好的吸附效果；吸附过程符合Freundlich等温式，且与拟二级动力学方程吻合，化学反应为吸附控制步骤。

关键词: 淀粉接枝丙烯酰胺, 等温吸附, 吸附动力学, 铜离子

CLC Number:

TS231
X703.5

Wei Xiaoyan, Tan Jun, Ouyang Yuxia, Fan Juhong, Liu Rui. Adsorption capacity of starch-grafted polyacrylamide for Cu(Ⅱ)[J]. INDUSTRIAL WATER TREATMENT, 2014, 34(2): 15-18.

韦晓燕, 谭军, 欧阳玉霞, 范举红, 刘锐. 淀粉接枝丙烯酰胺吸附铜离子性能研究[J]. 工业水处理, 2014, 34(2): 15-18.

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Adsorption capacity of starch-grafted polyacrylamide for Cu(Ⅱ)

淀粉接枝丙烯酰胺吸附铜离子性能研究

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Adsorption capacity of starch-grafted polyacrylamide for Cu(Ⅱ)

淀粉接枝丙烯酰胺吸附铜离子性能研究

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