H_(x)PO_(4)^((3-x)-)印迹聚吡咯膜材料的制备及其电控离子交换性能  

Preparation of H_(x)PO_(4)^((3-x)-) Imprinted Polypyrrole Membrane Material and Its Electrochemically Switched Ion Exchange Properties

作　　者：邢丽芳 原沁波 陈良[1] 周娴娴[1] 李瑜 王恩志[2,3] 刘盼盼[1] 刘世斌 XING Lifang;YUAN Qinbo;CHEN Liang;ZHOU Xianxian;LI Yu;WANG Enzhi;LIU Panpan;LIU Shibin(College of Chemistry and Chemical Engineering,Taiyuan University of Technology,Taiyuan 030024,China;State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijing 100084,China;Sanjiangyuan Collaborative Innovation Research Center,Tsinghua University,Beijing 100084,China)

机构地区：[1]太原理工大学化学化工学院,太原030024 [2]清华大学水沙科学与水利水电工程国家重点实验室,北京100084 [3]清华大学三江源协同创新研究中心,北京100084

出　　处：《太原理工大学学报》2021年第3期374-381,共8页Journal of Taiyuan University of Technology

基　　金：河北圣洁环境生物科技有限公司山西分公司资助项目。

摘　　要：采用恒电位电化学聚合法在镀金石英晶片上制备聚吡咯(PPy)印迹膜材料,通过SEM、FT-IR和XPS对膜材料的形貌、结构和组成进行表征。结果显示,材料表面微观形貌为菜花状,膜材料内含有H_(2)PO^(-)_(4),具有H_(2)PO^(-)_(4)印迹PPy膜材料的特征。使用电化学法考察其对H_(x)PO_(4)^((3-x)-)的交换性能,结果表明,离子交换容量随pH值的增大先减小后增大,呈"V"形,随NaH_(2)PO_(4)浓度的增大而单调增大,最高可达150 mg/g.The polypyrrole-based imprinted membrane material was prepared on gold plated quartz wafer by potentiostatic method.The morphology,structure,and composition of membrane material were characterized by SEM,FT-IR,and XPS.The results show that the surface micromorphology of material was cauliflower-like,and the membrane contained H 2PO-4,which had the characteristics of H 2PO-4 imprinting.The exchange properties of H_(x)PO_(4)^((3-x)-) were investigated by electrochemical method.The results show that with the increase of pH,the ion exchange capacity first decreased and then increased,showing a“V”shape.As the concentration of NaH 2PO 4 increased,the ion exchange capacity monotonously increased,up to 150 mg/g.

关 键 词：水净化 磷污染 PPy膜 电控离子交换 H_(x)PO_(4)^((3-x)-) 

分 类 号：TQ150.1[化学工程—电化学工业]