改性沸石/GA/CS膜的制备及Pb(Ⅱ)吸附性能研究  

Preparation and Adsorption Properties of Pb(Ⅱ)of Modified Zeolite/GA/CS Film

作　　者：代甜甜 刘晓南 张晓春 杨熙 Dai Tiantian;Liu Xiaonan;Zhang Xiaochun;Yang Xi(Guizhou Engineering Research Centre for Recreational Products from Medicinal Resources,Guiyang Recreational Vocational University,Guiyang,Guizhou,550081;Department of Hospital Infection Management,The Affiliated Hospital of Guizhou Medical University,Guiyang,Guizhou,550001)

机构地区：[1]贵阳康养职业大学贵州省药用资源康养产品工程研究中心,贵州贵阳550081 [2]贵州医科大学附属医院,医院感染管理科,贵州贵阳550001

出　　处：《现代塑料加工应用》2024年第4期25-27,31,共4页Modern Plastics Processing and Applications

基　　金：贵州省第七批高层次创新型人才项目-千层次人才计划(杨熙);贵州省科学技术协会项目(项目编号GZYZ2023-04)。

摘　　要：以壳聚糖(CS)为基体,改性沸石为填料,采用戊二醛(GA)为交联剂,结合聚乙二醇(PEG)制备出改性沸石/GA/CS膜。探究了多种变量对膜吸附铅离子(Pb^(2+))性能的影响,并与单一CS膜进行了对比。结果表明:单因素的最佳Pb^(2+)吸附条件为GA质量分数为5%,沸石质量分数为40%。另外,沸石含量的增加提高了沸石/GA/CS膜的热稳定性,其最高分解温度从473.05℃提高至488.28℃。Using chitosan(CS)as the matrix,modified zeolite as the filler,and glutaraldehyde(GA)as the crosslinking agent in combination with polyethylene glycol(PEG),the modified zeolite/GA/CS films were prepared.The effects of various variables on the adsorption properties of Pb ions(Pb^(2+))were investigated and compared with that of a single CS film.The results show that the optimal adsorption conditions for Pb^(2+)with single factor are GA mass fraction of 5%,zeolite mass fraction of 40%.In addition,the increase of the zeolite content improves the thermal stability of the zeolite/GA/CS films,and the maximum decomposition temperature of the films increases from 473.05℃to 488.28℃.

关 键 词：壳聚糖 沸石 戊二醛 铅离子 吸附性能 

分 类 号：X703[环境科学与工程—环境工程] TQ424[化学工程]