Superior polyethylene based total heat exchange membranes made from sealing polyamide separating layers with in situ grown ZIF-8 particles

Q1 Materials Science

Materials Science for Energy Technologies Pub Date : 2025-01-01 DOI:10.1016/j.mset.2025.06.001

Mengyao Chen , Jiajia Gui , Huimin Wang , Jiaju Wang , Fei Huang , Lixin Xue

{"title":"Superior polyethylene based total heat exchange membranes made from sealing polyamide separating layers with in situ grown ZIF-8 particles","authors":"Mengyao Chen , Jiajia Gui , Huimin Wang , Jiaju Wang , Fei Huang , Lixin Xue","doi":"10.1016/j.mset.2025.06.001","DOIUrl":null,"url":null,"abstract":"<div><div>A cross substrate counter diffusion (CSCD) process between the solutions of Zn(II) solution and 2-methyl imidazole (2-MIM)-ammonia solution (pH = 10) to <em>in situ</em> grow ZIF-8 particles was developed to enhance the performance of polyamide (PA)/polyethylene(PE) based thin film composite (TFC) total heat exchange membranes (THEMs). <em>In situ</em> grown ZIF particles from CSCD processes had effectively blocked CO<sub>2</sub> leakages across the PA separating layer by sealing the defect points, and provided selective water vapor permeating channels and surface area to enhance energy recovery efficiencies. The effects of Zn(II) loading concentration, CSCD reaction time and ligand type on the structure, CO<sub>2</sub> barrier property and heat exchange efficiencies were systematically investigated. Under optimized conditions, sealing with ZIF-8 particles could decrease the CO<sub>2</sub> permeance from 7.5 GPU to 1.15 GPU, at the same time, increase the sensible heat, latent heat and heat exchange efficiencies from 80 %, 53 %, 68 % to 96 %, 73 % and 82 % respectively.</div></div>","PeriodicalId":18283,"journal":{"name":"Materials Science for Energy Technologies","volume":"8 ","pages":"Pages 167-177"},"PeriodicalIF":0.0000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Science for Energy Technologies","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2589299125000072","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Materials Science","Score":null,"Total":0}

引用次数: 0

Abstract

A cross substrate counter diffusion (CSCD) process between the solutions of Zn(II) solution and 2-methyl imidazole (2-MIM)-ammonia solution (pH = 10) to in situ grow ZIF-8 particles was developed to enhance the performance of polyamide (PA)/polyethylene(PE) based thin film composite (TFC) total heat exchange membranes (THEMs). In situ grown ZIF particles from CSCD processes had effectively blocked CO₂ leakages across the PA separating layer by sealing the defect points, and provided selective water vapor permeating channels and surface area to enhance energy recovery efficiencies. The effects of Zn(II) loading concentration, CSCD reaction time and ligand type on the structure, CO₂ barrier property and heat exchange efficiencies were systematically investigated. Under optimized conditions, sealing with ZIF-8 particles could decrease the CO₂ permeance from 7.5 GPU to 1.15 GPU, at the same time, increase the sensible heat, latent heat and heat exchange efficiencies from 80 %, 53 %, 68 % to 96 %, 73 % and 82 % respectively.

Abstract Image

查看原文本刊更多论文

由密封聚酰胺分离层和原位生长的ZIF-8颗粒制成的高性能聚乙烯基全热交换膜

为了提高聚酰胺(PA)/聚乙烯（PE）基薄膜复合材料（TFC）全换热膜（THEMs）的性能，研究了在Zn（II）溶液和2-甲基咪唑(2-MIM)-氨溶液（pH = 10）中原位生长ZIF-8颗粒的跨底物反扩散（CSCD）工艺。从CSCD工艺中原位生长的ZIF颗粒通过密封缺陷点，有效地阻挡了二氧化碳穿过PA分离层的泄漏，并提供了选择性的水蒸气渗透通道和表面积，以提高能量回收效率。系统考察了Zn（II）负载浓度、CSCD反应时间和配体类型对CSCD结构、CO2阻隔性能和热交换效率的影响。在优化条件下，采用ZIF-8颗粒密封可将CO2渗透率从7.5 GPU降低到1.15 GPU，同时将显热、潜热和热交换效率分别从80%、53%、68%提高到96%、73%和82%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊