生物质化学工程2016，Vol.50Issue(6)：17-22,6.DOI:10.3969/j.issn.1673-5854.2016.06.003
壳聚糖-DMC-GA共聚物对Cr（Ⅵ）和Cd（Ⅱ）的吸附性能
Adsorption Performance of Cr(Ⅵ) and Cd(Ⅱ) on Chitosan-DMC-GA Copolymer
摘要
Abstract
With chitosan as the raw material, methylacryloyloxyethyl trimethyl ammonium chloride ( DMC) as grafting monomer, ammonium cerium nitrate as the initiator,Span-80 as the emulsifier,glutaraldehyde ( GA) as the crosslinking agent,the chitosan-DMC-GA copolymer was prepared through inverse emulsion polymerization.It was used to adsorb single ions Cr(Ⅵ) and Cd(Ⅱ) and the dual system Cr(Ⅵ)-Cd(Ⅱ).The adsorption kinetics and adsorption equilibrium were explored.The results of FT-IR and XPS analysis of copolymer showed that DMC and GA reacted with chitosan successfully,and the adsorption capacities of single ions Cr(Ⅵ) and Cd(Ⅱ)(1 mmol/L)were 1.974 and 1.396 mmol/g.In the dual system,the adsorption capacities of Cr(Ⅵ) and Cd(Ⅱ) were 1.906 and 1.204 mmol/g,and the adsorption processes of single ions Cr(Ⅵ) and Cd(Ⅱ) and the dual system Cr(Ⅵ)-Cd(Ⅱ) all followed the pseudo-second-order kinetics.The adsorption isotherms were all well described by the Langmuir equation.This meaned that the adsorption was monolayer adsorption.关键词
壳聚糖-DMC-GA共聚物/Cr(Ⅵ)/Cd(Ⅱ)/吸附动力学/吸附平衡Key words
chitosan-DMC-GA copolymer/Cr(Ⅵ)/Cd(Ⅱ)/adsorption kinetics/adsorption equilibrium分类
化学化工引用本文复制引用
陈天骄,姚春才..壳聚糖-DMC-GA共聚物对Cr（Ⅵ）和Cd（Ⅱ）的吸附性能[J].生物质化学工程,2016,50(6):17-22,6.基金项目
江苏高校优势学科建设工程资助项目(无编号) （无编号）
