Recent developments on catalytic membrane for gas cleaning

作     者：Jiahao Chen Zhaoxiang Zhong Yongsheng Xia Xuebin Ke Weihong Xing 

作者机构：State Key Laboratory of Materials-Oriented Chemical EngineeringNational Engineering Research Center for Special Separation MembraneNanjing Tech UniversityNanjing 210009China Faculty of Science and EngineeringSchool of Engineering and Computer ScienceUniversity of HullHU67RXUnited Kingdom 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2019年第27卷第6期

页      面：1391-1402页

核心收录：

学科分类：0710[理学-生物学] 080706[工学-化工过程机械] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0703[理学-化学] 

基　　金：Supported by the National Key R&D Program(2016YFC0204000) the National Natural Science Foundation of China(21878148,and U1510202) the Jiangsu Province Scientific Supporting Project(BK20170046) 

主　　题：Catalytic membranes Gas cleaning Membrane Catalysts 

摘      要：Catalytic membrane, a novel membrane separation technology that combines catalysis and separation, exhibits significant potential in gas purification such as formaldehyde, toluene and nitrogen oxides(NO_x). The catalytic membrane can remove solid particles through membrane separation and degrade gaseous pollutants to clean gas via a catalytic reaction to achieve green emissions. In this review, we discussed the recent developments of catalytic membranes from two aspects: preparation of catalytic membrane and its application in gas *** membranes are divided into organic catalytic membranes and inorganic catalytic membranes depending on the substrate materials. The organic catalytic membranes which are used for low temperature operation(less than 300 °C) are prepared by modifying the polymers or doping catalytic components into the polymers through coating, grafting, or in situ growth of catalysts on polymeric membrane. Inorganic catalytic membranes are used at higher temperature(higher than 500 °C). The catalyst and inorganic membrane can be integrated through conventional deposition methods, such as chemical(physical) vapor deposition and wet chemical deposition. The application progress of catalytic membrane is focused on purifying indoor air and industrial exhaust to remove formaldehyde, toluene, NO_x and PM2.5, which are also summarized. Perspectives on the future developments of the catalytic membranes are provided in terms of material manufacturing and process optimization.