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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/10880

Title: High flux composite PTMSP-silica nanohybrid membranes for the pervaporation of ethanol/water mixtures
Authors: CLAES, Stan
Vandezande, P.
Mullens, Steven
Leysen, R.
De Sitter, K.
Andersson, A.
Maurer, Frank H. J.
Peeters, R.
VAN BAEL, Marlies
Issue Date: 2010
Citation: JOURNAL OF MEMBRANE SCIENCE, 351 (1-2). p. 160-167
Abstract: Silica-filled poly(1-trimethylsilyl-1-propyne) (PTMSP) layers were successfully applied for the first time on top of ultrafiltration support membranes and applied in the pervaporative separation of ethanol/water mixtures. Reduction of the thickness of the separating PTMSP top layer and addition of hydrophobic silica particles resulted in a clear flux increase as compared to dense PTMSP membranes. With ethanol/water separation factors up to 12 and fluxes up to 3.5 kg m(-2) h(-1), the prepared supported PTMSP-silica nanohybrid membranes performed significantly better than the best commercially available organophilic pervaporation membranes. Characterization of a polyvinylidene fluoride (PVDF) and a polyacrylonitrile (PAN) support membrane revealed a more open, irregular and hydrophobic surface structure for the former membrane, thus explaining the higher fluxes of the PTMSP/PVDF composite membrane. Because of their promising flux-selectivity combination, the prepared membranes exhibit great potential in the removal of alcohols from aqueous mixtures. (C) 2010 Elsevier B.V. All rights reserved.
Notes: [Claes, S.; Vandezande, P.; Mullens, S.; Leysen, R.; De Sitter, K.] Flemish Inst Technol Res VITO, B-2400 Mol, Belgium. [Claes, S.; Van den Rul, H.; Van Bael, M. K.] Hasselt Univ, Lab Inorgan & Phys Chem, Inst Mat Res, B-3590 Diepenbeek, Belgium. [Andersson, A.; Maurer, F. H. J.] Lund Univ, Dept Polymer & Mat Chem, Lund Inst Technol, SE-22100 Lund, Sweden. [Peeters, R.] Xios Hogesch Limburg, Verpakkingsctr, B-3590 Diepenbeek, Belgium. stan.claes@vito.be
URI: http://hdl.handle.net/1942/10880
DOI: 10.1016/j.memsci.2010.01.043
ISI #: 000276282900021
ISSN: 0376-7388
Category: A1
Type: Journal Contribution
Validation: ecoom, 2011
Appears in Collections: Research publications

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