Enhance gas-separation efficiency of mixed matrix membranes by lamellarly arranged metal-organic polyhedron  

作　　者：Yida Yang Bowen Pang Wang Zeng Bingxu Ma Panchao Yin Shenglin Yao Xiufang Wen Wei Zhang 

机构地区：[1]South China Advanced Institute for Soft Matter Science and Technology,School of Emergent Soft Matter,South China University of Technology,Guangzhou 510640,China [2]National Centre for Inorganic Mass Spectrometry in Shanghai,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China [3]Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices,South China University of Technology,Guangzhou 510640,China [4]School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,China

出　　处：《Nano Research》2023年第8期11450-11454,共5页纳米研究（英文版）

基　　金：supported by Guangdong Natural Science Foundation(No.2018B030306039);the Recruitment Program of Guangdong(No.2016ZT06C322)and the 111 Project(No.B18023).

摘　　要：Eliminating the nonselective permeation path inside the mixed-matrix membranes(MMMs)is critical for fabrication of gas separation membranes.We demonstrate that by utilizing the phase separation of block copolymers,we are able to introduce metal-organic polyhedrons(MOPs)with precise pore sizes into a polymer matrix and form an ordered layered structure.We also prove that,by arranging MOP cages into a continuous nanosheet-like layer structure,we are able to generate repeated MOP-effective pathways and deplete the MOP-free permeation pathways,thus enhancing the gas-separation efficiency of MMMs.

关 键 词：metal-organic polyhedrons(MOPs) mixed-matrix membranes(MMMs) phase separation of mixed-matrix membranes arrangement of MOPs 

分 类 号：O63[理学—高分子化学]