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Title: Tailoring CO2 /CH4 separation properties of mixed-matrix membranes via combined use of two- and three-dimensional metal-organic frameworks
Authors: Samarasinghe, S.A.S.C.
Chuah, Chong Yang
Yang, Yanqin
Bae, Tae-Hyun
Keywords: Mixed-matrix Membrane
CuBDC Nanosheet
DRNTU::Engineering::Chemical engineering
Issue Date: 2018
Source: Samarasinghe, S., Chuah, C. Y., Yang, Y., & Bae, T. H. (2018). Tailoring CO2 /CH4 separation properties of mixed-matrix membranes via combined use of two- and three-dimensional metal-organic frameworks. Journal of Membrane Science, 55730-37. doi:10.1016/j.memsci.2018.04.025
Series/Report no.: Journal of Membrane Science
Abstract: Mixed-matrix membranes containing both two-dimensional (ns-CuBDC) and three-dimensional (ZIF-8) metal-organic frameworks were fabricated to investigate their potential capabilities in CO2/CH4 separation. The mixed-matrix membrane containing ns-CuBDC alone was capable of improving CO2/CH4 selectivity whereas the mixed-matrix membrane containing ZIF-8 alone ensured improved CO2 permeability. However, by combining both fillers in a mixed-matrix membrane aimed at tailoring the CO2/CH4 separation properties, both CO2 permeability and CO2/CH4selectivity were successfully improved by 16.6% and 30.5%, respectively, which indicates a highly desirable method of performance enhancement. Analysis of solubility-diffusivity in the mixed-matrix membranes revealed that the use of both fillers could improve both solubility selectivity and diffusivity selectivity. Our overall results imply that the separation properties of gas separation membranes can be readily adjusted to meet the requirements of real-world applications by the combined use of two fillers with different geometries.
ISSN: 0376-7388
DOI: 10.1016/j.memsci.2018.04.025
Schools: School of Chemical and Biomedical Engineering 
Interdisciplinary Graduate School (IGS) 
Research Centres: Nanyang Environment and Water Research Institute 
Rights: © 2018 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Membrane Science, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:IGS Journal Articles

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