Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/13374
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dc.contributor.authorCLAES, Stan-
dc.contributor.authorVandezande, Pieter-
dc.contributor.authorMullens, Steven-
dc.contributor.authorDe Sitter, Kristien-
dc.contributor.authorPeeters, Roos-
dc.contributor.authorVAN BAEL, Marlies-
dc.date.accessioned2012-03-13T13:34:37Z-
dc.date.available2012-03-13T13:34:37Z-
dc.date.issued2012-
dc.identifier.citationJOURNAL OF MEMBRANE SCIENCE, 389, p. 265-271-
dc.identifier.issn0376-7388-
dc.identifier.urihttp://hdl.handle.net/1942/13374-
dc.description.abstractSupported silica filled poly[1-(trimethylsilyl)-1-propyne] (PTMSP) membranes were optimised in terms of silica filler loading and top layer thickness, and applied in the pervaporative separation of dilute aqueous ethanol and butanol mixtures (5 wt.%). Addition of hydrophobic silica clearly increased the permeate flux at the expense of the alcohol/water selectivity. Based on its maximal pervaporation separation index (PSI) an optimum was found for a 25 wt.% silica filled membrane with a PTMSP separating layer of 2.4 μm thickness. This membrane exhibited a flux of 9.5 kg m−2 h−1 in combination with an ethanol/water separation factor of 18.3. In the pervaporation of a butanol/water mixture, a flux of 9.5 kg m−2 h−1 and accompanying separation factor of 104 was obtained. A benchmark of this optimised supported PTMSP-silica nanohybrid membrane against two commercially available PDMS-based membranes clearly demonstrated the superior flux/selectivity combination of the prepared thin film silica filled PTMSP membranes in the removal of alcohols from dilute aqueous mixtures. Compared to the commercial membranes, a 4- and 3-fold increase in flux and a 2- and 3-fold increase in alcohol/water separation factor was observed for the optimised supported PTMSP-silica membrane in the separation of a 5 wt.% ethanol/water and butanol/water mixture, respectively.-
dc.language.isoen-
dc.subject.otherPoly[1-(trimethylsilyl)-1-propyne]; Hydrophobic silica; Pervaporation; Alcohol recovery; Thin film composite membrane-
dc.titlePreparation and benchmarking of thin film supported PTMSP-silica pervaporation membranes-
dc.typeJournal Contribution-
dc.identifier.epage271-
dc.identifier.spage265-
dc.identifier.volume389-
local.bibliographicCitation.jcatA1-
local.type.refereedRefereed-
local.type.specifiedArticle-
dc.bibliographicCitation.oldjcatA1-
dc.identifier.doi10.1016/L.memsci.2011.10.035-
dc.identifier.isi000300529100029-
item.fulltextWith Fulltext-
item.accessRightsRestricted Access-
item.validationecoom 2013-
item.fullcitationCLAES, Stan; Vandezande, Pieter; Mullens, Steven; De Sitter, Kristien; Peeters, Roos & VAN BAEL, Marlies (2012) Preparation and benchmarking of thin film supported PTMSP-silica pervaporation membranes. In: JOURNAL OF MEMBRANE SCIENCE, 389, p. 265-271.-
item.contributorCLAES, Stan-
item.contributorDe Sitter, Kristien-
item.contributorVandezande, Pieter-
item.contributorMullens, Steven-
item.contributorPeeters, Roos-
item.contributorVAN BAEL, Marlies-
crisitem.journal.issn0376-7388-
crisitem.journal.eissn1873-3123-
Appears in Collections:Research publications
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