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High flux composite PTMSP-silica nanohybrid membranes for the pervaporation of ethanol/water mixtures

Claes, S.; Vandezande, P.; Mullens, S.; Leysen, R.; De Sitter, K.; Andersson, Anna LU ; Maurer, Frans LU ; Van den Rul, H.; Peeters, R. and Van Bael, M. K. (2010) In 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... (More)
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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Silica-filled nanohybrid membranes, Water/ethanol separation, High flux composite membranes, PTMSP, Organophilic pervaporation
in
Journal of Membrane Science
volume
351
issue
1-2
pages
160 - 167
publisher
Elsevier
external identifiers
  • wos:000276282900021
  • scopus:77649188969
ISSN
0376-7388
DOI
10.1016/j.memsci.2010.01.043
language
English
LU publication?
yes
id
6c6266f7-043c-4038-b44c-3b74d785542f (old id 1587007)
date added to LUP
2010-04-27 11:31:41
date last changed
2018-05-29 10:39:18
@article{6c6266f7-043c-4038-b44c-3b74d785542f,
  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.},
  author       = {Claes, S. and Vandezande, P. and Mullens, S. and Leysen, R. and De Sitter, K. and Andersson, Anna and Maurer, Frans and Van den Rul, H. and Peeters, R. and Van Bael, M. K.},
  issn         = {0376-7388},
  keyword      = {Silica-filled nanohybrid membranes,Water/ethanol separation,High flux composite membranes,PTMSP,Organophilic pervaporation},
  language     = {eng},
  number       = {1-2},
  pages        = {160--167},
  publisher    = {Elsevier},
  series       = {Journal of Membrane Science},
  title        = {High flux composite PTMSP-silica nanohybrid membranes for the pervaporation of ethanol/water mixtures},
  url          = {http://dx.doi.org/10.1016/j.memsci.2010.01.043},
  volume       = {351},
  year         = {2010},
}