ZIF-8@PI纤维纳米复合膜光催化剂的制备  

Preparation and photocatalytic performance of ZIF-8@PI nanofiber membrane

作　　者：马丽[1] 李莹[1] 衣梓硕 孔蒙迪 辛俞瀚 何铁石[1,2] Ma Li;Li Ying;Yi Zishuo;Kong Mengdi;Xin Yuhan;He Tieshi(School of Chemistry&Materials Engineering,Bohai University,Jinzhou 121013,China;Liaoning Engineering Technology Center of Supercapacitor,Jinzhou 121013)

机构地区：[1]渤海大学化学与材料工程学院,锦州121013 [2]辽宁省超级电容器工程技术中心,锦州121013

出　　处：《化工新型材料》2022年第7期95-98,104,共5页New Chemical Materials

基　　金：辽宁省大学生创新创业训练计划项目(201910167192,201910167082);辽宁省自然科学基金(0518XN011,0519BS014);国家重点研发计划资助(2020YFF0413818)。

摘　　要：制备聚酰胺酸前驱溶液,利用高压静电纺丝法制备聚酰胺酸电纺纤维,再通过热胺化过程得到聚酰亚胺(PI)超细纤维膜。以PI超细纤维膜为载体,采用溶液沉淀法和水热合成法在其表面负载ZIF-8纳米粒子,控制反应条件制备纳米颗粒或纳米盘状的ZIF-8@PI纤维纳米复合膜光催化剂。采用扫描电子显微镜、X射线衍射等进行表征,结果显示以PI超细纤维为载体和模板剂,ZIF-8纳米材料可以均匀、无团聚和较高负载量于PI超细纤维表面。对ZIF-8@PI纤维纳米复合膜进行光催化降解水中有机染料的研究,结果显示纳米盘状ZIF-8@PI超细纤维膜具有较高的光催化效率(99.8%)和光催化降解速率(0.57mg/h·cm^(2))。Polyamic acid precursor was prepared for electrospinning,then the polymaic acid electrospun fibers mats were obtained by using electrospinning method.A polyimide(PI) ultrafine fibers mats was prepared by thermal imidization process.ZIF-8 nanoparticles/plates were deposited on the surface by solution synthesis and hydrothermal synthesis method,so ZIF-8@PI fibers nanocomposites photocatalyst can be obtained.The samples were characterized by scanning electron microscopy,X ray diffraction.Using the PI fibers as template and carrier,ZIF-8 nano-particles/plates with uniform,less agglomeration and high loading can be loaded on the surface of PI fibers.The photocatalyst performance of ZIF-8@PI fibers nanocomposites membrane was investigated by the degradation of organic dyes in water,the results shown that tbe membrane possessed high photocatalyst efficiency(99.8%) and photocatalytic degradation rate(0.57 mg·cm^(-2)·h^(-1)).

关 键 词：ZIF-8 纳米粒子 聚酰亚胺 静电纺丝 光催化 

分 类 号：TQ152[化学工程—电化学工业] TM53[电气工程—电器]