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Title: Carbon molecular sieve membranes comprising graphene oxides and porous carbon for CO₂/N₂ separation
Authors: Chuah, Chong Yang
Lee, Junghyun
Song, Juha
Bae, Tae-Hyun
Keywords: Engineering::Chemical engineering
Issue Date: 2021
Source: Chuah, C. Y., Lee, J., Song, J. & Bae, T. (2021). Carbon molecular sieve membranes comprising graphene oxides and porous carbon for CO₂/N₂ separation. Membranes, 11(4), 284-.
Journal: Membranes 
Abstract: To improve the CO₂/N₂ separation performance, mixed-matrix carbon molecular sieve membranes (mixed-matrix CMSMs) were fabricated and tested. Two carbon-based fillers, graphene oxide (GO) and activated carbon (YP-50F), were separately incorporated into two polymer precursors (Matrimid® 5218 and ODPA-TMPDA), and the resulting CMSMs demonstrated improved CO₂ permeability. The improvement afforded by YP-50F was more substantial due to its higher accessible surface area. Based on the gas permeation data and the Robeson plot for CO₂/N₂ separation, the performances of the CMSMs containing 15 wt % YP-50F and 15 wt % GO in the mixed polymer matrix surpassed the 2008 Robeson upper bound of polymeric membranes. Hence, this study demonstrates the feasibility of such membranes in improving the CO₂/N₂ separation performance through the appropriate choice of carbon-based filler materials in polymer matrices.
ISSN: 2077-0375
DOI: 10.3390/membranes11040284
Schools: School of Chemical and Biomedical Engineering 
Research Centres: Nanyang Environment and Water Research Institute 
Singapore Membrane Technology Centre 
Rights: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
Fulltext Permission: open
Fulltext Availability: With Fulltext
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