Adsorption properties of starch-grafted polyacrylamide and cross-linked starch-grafted polyacrylamide for Cu(Ⅱ)

摘要：

　　Cross-linked starch-grafted polyacrylamide (CSA) were synthesized from corn starch and the adsorption performance for Cu(II) ion from aqueous solution is compared with starch-grafted polyacrylamide (SA).Various factors including solution pH, Cu(lⅡ) ion concentration, treatment time, and temperature were studied.The results indicated that the adsorption capacity of Cu(Ⅱ) of SA and CSA reached the maximum when the pH was 6.and both of adsorptions of Cu(Ⅱ) ion followed the pseudo-second-order kinetic model and fitted the Freundlich isotherm well, but the adsorption capacity of CSA was higher than that of SA.The thermodynamic parameter,△G, were calculated.The△G values of CSA at various temperatures was more negative than that of SA confirmed that using CSA is more favorable for the adsorption of Cu(Ⅱ).

关键词： Cross-linked starch-grafted polyacrylamide Starch-grafted polyacrylamide Kinetics Thermodynamics Adsorption isotherm

作者: Xiaoyan Wei Jun Tan Yuxia Ouyang Juhong Fan Rui Liu Jie Chen

作者单位: Department of Chemical and Textile Engineering of Nanhu College of Jiaxing University,314001,PR Chin Department of Chemical and Textile Engineering of Nanhu College of Jiaxing University,314001,PR Chin Zhejiang Provincial Key Laboratory of Water Science and Technology,Department of Environment in Yang College of Biological and Chemical Engineering of Jiaxing University,Jiaxing,314001,PR China

会议类型: 国际会议

会议名称: International Conference on Recent Advances in Pollution Control and Resource Recovery for the Livestock Farming Industry(RAPCP 2013)2013年畜禽养殖污染防治国际会议

会议地点: 浙江嘉兴

会议语种:英文

页码: 98-105

在线出版日期: 2013-10-24（万方平台首次上网日期，不代表论文的发表时间）