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Development of polysulfone (PSF)-carbon molecular sieve (CMS) mixed matrix membrane (MMM) for O(2)/N(2) gas separation

Ismail, Ahmad Fauzi and Rahman, W. R. and Aziz, F. (2009) Development of polysulfone (PSF)-carbon molecular sieve (CMS) mixed matrix membrane (MMM) for O(2)/N(2) gas separation. In: Nanoscience and Nanotechnology. AIP Conference Proceedings, 1136 . Amer Inst Physics, New York, pp. 201-206. ISBN 978-0-7354-0673-5

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Mixed matrix membranes (MMMs) comprising polysulfone (PSF) Udel (R) P-1700 and synthesized carbon molecular sieve (CMS) particles (<25 mu m) have been fabricated and characterized. CMS were synthesized by using polyacrylonitrile (PAN) as polymer precursor. The casting process was performed at the processing temperature close to TB of PSF in order to maintain the flexibility of polymer during film formation. This study investigated the effects of CMS loadings (10, 20, 30 and 35wt %) on the morphology and the gas separation performance of PSF-CMS MMMs. The fabricated MMMs were characterized using TGA, DSC, FESEM and single gas permeation test using high purity O(2) and N(2). Based on FESEM micrograph, a good polymer-sieve adhesion was achieved in MMMs using the combination of PSF-CMS even at high sieve loading (up to 35 wt %). The formation of 'sieve-in-the-cage' morphology in PSF-CMS MMMs has been minimized to a great extend by implementing casting procedure at the operating temperature close to the T(g) of polymer matrix. The O(2) and N(2) permeability for MMMs were increased with increasing CMS loading; while at 20wt% CMS loading the O(2)/N(2) selectivity attain the highest value which is 5.97 with the O(2) permeability of 7.9617 barrers.

Item Type:Book Section
Additional Information:Conference: International Conference on Nanoscience and Nanotechnology (NANO-SciTech 2008); Location: Selangor, MALAYSIA; Date: NOV 18-21, 2008; ISSN : 0094-243X
Uncontrolled Keywords:carbon molecular sieve, mixed matrix membrane, gas separation, polysulfone membrane
Subjects:Q Science > QC Physics
T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering
ID Code:13355
Deposited By: Zalinda Shuratman
Deposited On:05 Aug 2011 03:02
Last Modified:05 Aug 2011 03:02

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