Investigation of Azo-COP-2 as a Photoresponsive Low-Energy CO2 Adsorbent and Porous Filler in Mixed Matrix Membranes for CO2/N2 Separation
File(s)
Accepted version
Author(s)
li, siyao
Prasetya, Nicholaus
Ladewig, Bradley P
Type
Journal Article
Abstract
Azo-COP-2 is a nanoporous polymer with exceptional CO2/N2 separation performance. In this study, we further investigate the application of Azo-COP-2 as a low-energy CO2 adsorbent and porous filler in mixed matrix membranes (MMMs) for CO2/N2 separation. As an adsorbent, the UV-irradiated Azo-COP-2 showed lower CO2 uptake than in the nonirradiated state, and Azo-COP-2 also exhibited highly efficient CO2 photoswitching between the two states. Combined with high CO2/N2 selectivity, this makes Azo-COP-2 an excellent candidate for low-energy CO2 capture and release. Azo-COP-2 is also shown to be a beneficial filler in MMMs. For polysulfone-based MMMs, the CO2 permeability and CO2/N2 selectivity could be increased up to 160% and 66.7%, respectively. The strategy shows the great potential of Azo-COP-2 not only for a low-energy CO2 adsorbent but also to improve the performance of conventional polymeric membranes for CO2 postcombustion capture.
Date Issued
2019-06-12
Date Acceptance
2019-05-16
Citation
Industrial & Engineering Chemistry Research, 2019, 58 (23), pp.9959-9969
ISSN
0888-5885
Publisher
American Chemical Society (ACS)
Start Page
9959
End Page
9969
Journal / Book Title
Industrial & Engineering Chemistry Research
Volume
58
Issue
23
Copyright Statement
© 2019 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Industrial and Engineering Chemistry Research, after peer review and technical editing by the publisher. To access the final edited and published work see https://dx.doi.org/10.1021/acs.iecr.9b00762
Subjects
Science & Technology
Technology
Engineering, Chemical
Engineering
COVALENT ORGANIC FRAMEWORK
INTRINSIC MICROPOROSITY PIMS
GAS SEPARATION
IONIC LIQUID
POLYMERS
CAPTURE
PERFORMANCE
ADSORPTION
POLYIMIDE
ROBUST
Chemical Engineering
09 Engineering
03 Chemical Sciences
Publication Status
Published
Article Number
acs.iecr.9b00762
Date Publish Online
2019-05-16