The Research on the Adsorbing Behavior of Chitosan for Heavy Metal Ions

摘要：

　　Chitosan and N,O-carboxymethyl chitosan are non-toxic natural absorbents.In this paper, the adsorbing behavior of Chitosan and O, N-carboxymethyl Chitosan for Co2+ respectively were studied.The result indicated that the adsorbing ability of N,O-carboxymethyl chitosan was better than this of chitosan.The adsorbing ratio increased clearly with the increasing in the pH value of solution and absorbent amount, but it was not sensitive to the concentration of Co2+.Within ten minutes, the adsorbing ratio of above absorbents could achieve above 80%.But with time prolonging, the adsorbing ratio increased slowly.When time was more than 15 minutes and the pH value was higher than 10, the adsorption rate slowly flatted out.

关键词： Chitosan N,O-carboxymethyl chitosan Co2+ Adsorbing ratio

作者: Xiao-ling Liao Yan Liu Qiu-hong Huang Wen-feng Xu

作者单位: Institute of Biomaterials and living cell imaging technique,School of Metallurgy and Materials Engin School of Materials and Chemical Engineering,ChongQing University of Arts and science,Chongqing 4021

会议类型: 国际会议

会议名称: 2012 China Functional Materials Technology and Industry Forum(2012中国功能材料科技与产业高层论坛)(CFMTIF2012)

会议地点: 昆明

会议语种:英文

页码: 649-653

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）