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

Research output: Contribution to journalArticle


title = "High flux composite PTMSP-silica nanohybrid membranes for the pervaporation of ethanol/water mixtures",
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.",
keywords = "Silica-filled nanohybrid membranes, Water/ethanol separation, High flux composite membranes, PTMSP, Organophilic pervaporation",
author = "S. Claes and P. Vandezande and S. Mullens and R. Leysen and {De Sitter}, K. and Anna Andersson and Frans Maurer and {Van den Rul}, H. and R. Peeters and {Van Bael}, {M. K.}",
note = "The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Polymer and Materials Chemistry (LTH) (011001041)",
year = "2010",
doi = "10.1016/j.memsci.2010.01.043",
language = "English",
volume = "351",
pages = "160--167",
journal = "Jornal of Membrane Science",
issn = "0376-7388",
publisher = "Elsevier",
number = "1-2",