二维MOF-5/PVDF复合膜的制备及其在重金属离子Cu^(2+)吸附中的应用  

preparation of 2D MOF-5/PVDF composite membrane and its application in the adsorption of heavy metal ions Cu^(2+)

作　　者：郑涛[1] 李成才[1] 朱海霖[1,2] 刘国金 雷彩虹[1] 陈建勇[1] Zheng Tao;Li Chengcai;Zhu Hailin;Liu Guojin;Lei Caihong;Chen Jianyong(Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology,Zhejiang Sci-Tech University,Hangzhou 310018;Zhejiang Kertice Hi-Tech Fluor-Material Co.,Ltd.,Huzhou 313000)

机构地区：[1]浙江理工大学浙江省纤维材料和加工技术研究重点实验室,杭州310018 [2]浙江格尔泰斯环保特材科技股份有限公司,湖州313000

出　　处：《化工新型材料》2023年第10期265-271,共7页New Chemical Materials

基　　金：国家自然科学基金(52003239);浙江省基础公益研究计划项目(LGC21E030003)。

摘　　要：采用非溶剂诱导相分离法制备二维MOF-5/聚偏氟乙烯(PVDF)复合膜,然后将其用于吸附重金属离子Cu^(2+)。分析MOF-5的形貌、结构和晶型,优化MOF-5/PVDF复合膜的制备工艺参数,并探究最优性能复合膜的可重复使用性能。结果表明:制备的二维MOF-5大小均一、呈明显的薄片状;当MOF-5含量为8%与10%时,复合膜表现出良好的Cu^(2+)去除能力;经过7次循环试验后,复合膜依旧能够保持较好的吸附性能,表现出良好的可重复使用性能。制备了对铜离子具有良好吸附性能的二维MOF-5/PVDF复合膜,并实现了膜的可重复使用。Two-dimensional MOF-5/PVDF composite membranes were prepared by a non-solvent-induced phase separation method,and then used to adsorb heavy metal ions Cu^(2+).The morphology,structure and crystal form of MOF-5 were analyzed,the preparation process parameters of MOF-5/PVDF composite membrane were optimized,and the reusability of the optimal performance composite membrane was explored.The results showed that the prepared two-dimensional MOF-5 was uniform in size and obvious flake shape.When the MOF-5 content was 8%and 10%,the composite membrane exhibited good Cu^(2+)removal ability.After seven cycle tests,the composite membrane still maintained good adsorption performance,showing good reusability.Through research,a two-dimensional MOF-5/PVDF composite membrane with good adsorption performance for copper ions was successfully prepared,and the membrane was reusable.

关 键 词：金属有机框架 二维MOF-5纳米片 聚偏氟乙烯复合膜 膜分离 重金属吸附 

分 类 号：TQ319[化学工程—高聚物工业]