新型阳离子MOFs复合膜对高氯酸盐的去除研究

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中图分类号：X703 文献标志码：A 文章编号：1003-5168（2025）08-0084-04

Abstract： [Purposes] In orderto solve the problemof perchlorate pollution in water，a Cu-iMOFs material was prepared in this study，and a Cu-iMOFs coating membrane （Cu-iMOFs/PVDF） was developed and designed using PVDF membrane as a support to prevent the leaching of powdered CuiMOFs into water leading to safety problems.[Methods] The performance of the designed Cu-iMOFs coated membrane was evaluated and its removal performance for was studied.And then， the effects of different loading on membrane efficiency were studied.[Findings] The experimental results showed that the pure water flux and permeation flux of the ultrafiltration membrane loaded with 0.05 Cu-iMOFs were 51.271 L/（m²·h） and 42.813 L/（m²·h）， respectively. The removal efficiency of was The pure water flux and permeation flux of the microfiltration membrane loaded withO.05gCu-iMOFswere and ，respectively.Theremoval efficiency of was 5 7 . 2 8 % ，and the removal efficiency of ClO of the microfiltration membrane loadedwith Cu-iMOFs increased from 5 7 . 2 8 % to 69.46 % .[Conclusions] The results showed that increasing the loading of Cu-iMOFs can form a denser Cu-iMOFs functional layer on the membrane surface and improve the removal efficiency of in the solution.

Keywords： perchlorate; cationic metal-organic framework; coated film; water treatment

0 引言

1材料与方法

高氯酸根阴离子（ 是一种带有强氧化性的含氧无机酸阴离子，被广泛应用于航天器燃料、烟花爆竹和工程炸药的制作中[，其制作过程会导致 以颗粒状固体形式进入大气，通过自然界的大气循环和水循环进入地表径流和地下水中，造成水体污染[2]。（剩余4486字）