基于MOFs的Pb(Ⅱ)离子印迹聚合物的制备及性能研究  

Preparation and properties of Pb(Ⅱ)ion imprinted polymer based on MOFs

作　　者：胡斌 洪玉文 付冬雪 罗甘滨 赵莉 成会玲[1] HU Bin;HONG Yuwen;FU Dongxue;LUO Ganbin;ZHAO Li;CHENG Huiling(College of Science,Kunming University of Science and Technology,Kunming 650500,Yunnan,China)

机构地区：[1]昆明理工大学理学院,云南昆明650500

出　　处：《云南大学学报（自然科学版）》2024年第6期1111-1119,共9页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金地区科学基金(21764008).

摘　　要：以Pb(Ⅱ)为模板离子,采用沉淀聚合法,以Fe_(3)O_(4)/MIL101(Cr)为金属有机框架材料(MOFs),乙二醇二甲基丙烯酸酯为交联剂,对MOFs、功能单体、交联剂的用量以及致孔溶剂的种类等实验条件进行优化,制备了一系列Pb(Ⅱ)印迹聚合物[Pb(Ⅱ)-IIPs]及相应的非印迹聚合物(NIPs).结合扫描电镜(SEM)、氮气吸附/脱附(BET)、等温吸附实验、动力学吸附实验等,对较优实验条件下制备的Pb(Ⅱ)-IIP_(8)和NIP_(8)进行结构表征和性能研究.结果表明,Pb(Ⅱ)-IIP_(8)对Pb(Ⅱ)离子具有较大的吸附容量和较高的印迹因子,有望成为一种新型Pb(Ⅱ)离子吸附分离材料.Using Pb(Ⅱ)as the template ion,a precipitation polymerization method was adopted to prepare a series of Pb(Ⅱ)-imprinted polymers[Pb(Ⅱ)-IIPs]and corresponding non-imprinted polymers(NIPs)by using Fe_(3)O_(4)/MIL101(Cr)as the metal organic frameworks(MOFs),ethylene glycol dimethacrylate as the crosslinking agent,and optimizing the experimental conditions such as the amount of MOFs,functional monomer,crosslinking agent,and the type of porogenic solvent.Through scanning electron microscopy(SEM),nitrogen adsorption/desorption(BET),isothermal adsorption and kinetic adsorption experiments,the Pb(Ⅱ)-IIP_(8)and NIP_(8)prepared under the optimal experimental conditions were structurally characterized and their properties were studied.The results indicated that Pb(Ⅱ)-IIP_(8),prepared under the optimized conditions,exhibited a higher adsorption capacity and imprinting factor for Pb(Ⅱ)ions,and it was expected to be used as a new type of Pb(Ⅱ)ion adsorption material.

关 键 词：Pb(Ⅱ)离子 金属有机框架材料 沉淀聚合法 离子印迹聚合物 

分 类 号：O363.9[理学—流体力学]