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Title: Enhanced gas separation properties by using nanostructured PES-zeolite 4A mixed matrix membranes
Authors: Huang, Z.
Li, Y. 
Wen, R.
Teoh, M.M. 
Kulprathipanja, S.
Keywords: Gas permeation
Mixed matrix membrane
Zeolite 4A
Issue Date: 15-Sep-2006
Citation: Huang, Z., Li, Y., Wen, R., Teoh, M.M., Kulprathipanja, S. (2006-09-15). Enhanced gas separation properties by using nanostructured PES-zeolite 4A mixed matrix membranes. Journal of Applied Polymer Science 101 (6) : 3800-3805. ScholarBank@NUS Repository.
Abstract: The polymer-zeolite mixed matrix membranes were fabricated by incorporating nanosized or microsized zeolite 4A into polyethersulfone. A comparison of zeolite 4A nanocrystals and microcrystals was made by using SEM, XRD, N 2 adsorption-desorption measurements. Zeolite particles were well-distributed in the polymer phase, as reflected by the SEM images. The effects of the zeolite 4A particle size on the gas permeation performance were studied. Experimental results demonstrate that mixed matrix membranes exhibit decreased gas permeabilities due to the barrier effect of zeolite particles. The obtained permselectiv ity is greatly enhanced for He/N 2, H 2/N 2, He/CO 2, and H 2/CO 2 gas pairs, especially for nanosized zeolite 4A mixed matrix membranes. The gas permeation performance difference is observed between the nanostructured and microstructured membranes, which is attributed to a combined effect of different zeolite composition and different particle size. © 2006 Wiley Periodicals, Inc.
Source Title: Journal of Applied Polymer Science
ISSN: 00218995
DOI: 10.1002/app.24041
Appears in Collections:Staff Publications

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