Indispensable gutter layers in thin-film composite membranes for carbon capture  

作　　者：Gengyi Zhang Haiqing Lin 

机构地区：[1]Department of Chemical and Biological Engineering,University at Buffalo,The State University at New York,Buffalo,NY,14260,USA

出　　处：《Green Energy & Environment》2024年第8期1220-1238,共19页绿色能源与环境（英文版）

基　　金：support from the U.S.Department of Energy National Energy Technology Laboratory(DE-FE0031736);the New York State Foundation for Science,Technology and Innovation(NYSTAR).

摘　　要：Industrial thin-film composite(TFC)membranes achieve superior gas separation properties from high-performance selective layer materials,while the success of membrane technology relies on high-performance gutter layers to achieve production scalability and low-cost manufacturing.However,the current literature predominantly focuses on the design of polymer architectures to obtain high permeability and selectivity,while the art of fabricating gutter layers is usually safeguarded by industrial manufacturers and appears lackluster to academic researchers.This is the first report aiming to provide a comprehensive and critical review of state-of-the-art gutter layer materials and their design and modification to enable TFC membranes with superior separation performance.We first elucidate the importance of the gutter layer on membrane performance through modeling and experimental results.Then various gutter layer materials used to obtain high-performance composite membranes are critically reviewed,and the strategies to improve their compatibility with the selective layer are highlighted,such as oxygen plasma treatment,polydopamine deposition,and surface grafting.Finally,we present the opportunities of the gutter layer design for practical applications.

关 键 词：Thin-film composite membranes Gutter layer Gas separation Carbon capture 

分 类 号：TQ051.893[化学工程] X701[环境科学与工程—环境工程]