Please use this identifier to cite or link to this item: https://doi.org/10.1021/acssuschemeng.8b05333
Title: Selective Gas Permeation in Mixed Matrix Membranes Accelerated by Hollow Ionic Covalent Organic Polymers
Authors: Cheng, Youdong 
Zhai, Linzhi
Tong, Minman
Kundu, Tanay 
Liu, Guoliang 
Ying, Yunpan 
Dong, Jinqiao 
Wang, Yuxiang 
Zhao, Dan 
Keywords: Science & Technology
Physical Sciences
Technology
Chemistry, Multidisciplinary
Green & Sustainable Science & Technology
Engineering, Chemical
Chemistry
Science & Technology - Other Topics
Engineering
CO2 capture
Mixed matrix membrane
Polysulfone
Hollow structure
Ionic covalent organic filler
FRAMEWORK NANOSHEETS
CO2 CAPTURE
SEPARATION
ULTRATHIN
Issue Date: 7-Jan-2019
Publisher: AMERICAN CHEMICAL SOCIETY
Citation: Cheng, Youdong, Zhai, Linzhi, Tong, Minman, Kundu, Tanay, Liu, Guoliang, Ying, Yunpan, Dong, Jinqiao, Wang, Yuxiang, Zhao, Dan (2019-01-07). Selective Gas Permeation in Mixed Matrix Membranes Accelerated by Hollow Ionic Covalent Organic Polymers. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7 (1) : 1564-1573. ScholarBank@NUS Repository. https://doi.org/10.1021/acssuschemeng.8b05333
Abstract: © 2018 American Chemical Society. Mixed matrix membranes (MMMs) have gained great attention for the efficient CO 2 removal from raw nature gas or biogas (CO 2 /CH 4 separation) and flue gas (CO 2 /N 2 separation). Nevertheless, the development of high-performance MMMs for industrial applications is largely limited by the lack of suitable porous fillers. Herein, a novel ionic covalent organic polymer (ICOP-1) consisting of gas selective pores and hollow cavities is facilely fabricated using a metal triflate catalyzed condensation reaction. Considering its unique structural properties, ICOP-1 is explored as a novel filler to enhance the gas separation properties of polysulfone (PSf) membranes. Defect-free MMMs are successfully prepared owing to the high polymer-filler affinity originating from the organic nature of these two phases. Besides, the large cavities and size-selective pores of ICOP-1 lead to a simultaneous increase in membrane CO 2 permeability and CO 2 /CH 4 , CO 2 /N 2 selectivities. With the addition of only 0.5 wt % of ICOP-1 fillers, the as-prepared MMM demonstrates the optimal gas separation performance with a CO 2 /CH 4 selectivity of 39.7 (at a CO 2 permeability of 6.19 Barrer) and a CO 2 /N 2 selectivity of 36.7 (at a CO 2 permeability of 6.85 Barrer), opening new opportunities in membrane-based industrial CO 2 capture applications.
Source Title: ACS SUSTAINABLE CHEMISTRY & ENGINEERING
URI: https://scholarbank.nus.edu.sg/handle/10635/169610
ISSN: 21680485
DOI: 10.1021/acssuschemeng.8b05333
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