新型陽(yáng)離子MOFs復(fù)合膜對(duì)高氯酸鹽的去除研究

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中圖分類號(hào)：X703 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：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材料與方法

高氯酸根陰離子（ 是一種帶有強(qiáng)氧化性的含氧無(wú)機(jī)酸陰離子，被廣泛應(yīng)用于航天器燃料、煙花爆竹和工程炸藥的制作中[，其制作過(guò)程會(huì)導(dǎo)致 以顆粒狀固體形式進(jìn)入大氣，通過(guò)自然界的大氣循環(huán)和水循環(huán)進(jìn)入地表徑流和地下水中，造成水體污染[2]。（剩余4486字）