AuCl_4^-印迹材料的制备及其吸附性能研究  

Preparation and Adsorption Property of AuCl_4^- Imprinted Material

作　　者：杨苗[1] 陈翠蓉[1] 贾惠婷[1] 林豆豆[1] 

机构地区：[1]中北大学理学院化学系,山西太原030051

出　　处：《山东化工》2016年第9期1-3,共3页Shandong Chemical Industry

基　　金：中北大学大学生创新创业训练项目(编号:1508321210);国际科技合作计划资助项目(编号:2011DFA51980);山西省国际科技合作计划资助项目(编号:2015081043);山西省科技攻关及青年基金资助项目(编号:20130321022-02;2013021012-3;20140313002-4)

摘　　要：以聚砜膜为基体膜,化学接枝功能大分子聚乙烯亚胺(PEI),制得了功能接枝材料CMPSF-g-PEI;以AuCl_4^-为模板离子,环氧氯丙烷为交联剂,对氯甲基聚砜膜表面的PEI进行交联,同时实现了对AuCl_4^-的印迹,制得了AuCl_4^-离子印迹材料CMPSF-g-IIPPEI,并探讨了对模板AuCl_4^-的结合性能和识别选择性。研究结果表明,CMPSF-g-IIPPEI对AuCl_4^-有很强的结合亲合性与识别选择性。CMPSF-g-IIPPEI对氯金酸的吸附量可达36.45 mg/g,相对于Cu^(2+),印迹材料对AuCl_4^-的选择性系数为31.81。同时,CMPSF-g-IIPPEI还具有优良的重复使用性能。Based on polysulfone（ PSF）,a functional graft material PEI- g- CMPSF was synthesized via grafting functional polymer PEI（ polyethyleneimine,PEI） onto the surface of CMPSF. Adopting surface imprinting technique, PEI macromolecules grafted onto the surface of CMPSF were crosslinked to produce ionic imprinted material CMPSF- g- IIPPEI by using AuCl4^- as template ions and epichlorohydrin（ ECH） as crosslinking agent. The binding and recognizing properties of CMPSF- g- IIPPEI for AuCl4^- was also investigated. The experiment results show that CMPSF- g- IIPPEI have excellent binding and recognizing properties for AuCl4^- . The adsorption capacity could be up to 36. 45 mg / g,and the relative selectivity coefficients relative to Cu^2＋ was 31. 84. Furthermore,CMPSF- g- IIPPEI possessed excellent reusability.

关 键 词：聚砜膜 氯金酸 印迹 聚乙烯亚胺 吸附 

分 类 号：TQ314.24[化学工程—高聚物工业]