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Title: Permeability of hydrophilic and hydrophobic Shirasu-porous-glass (SPG) membranes to pure liquids and its microstructure
Authors: Vladisavljevic, Goran T.
Shimizu, Masataka
Nakashima, Tadao
Keywords: Shirasu porous glass membrane
Membrane emulsification
Pore size distribution
Pore tortuosity
Membrane permeability
Issue Date: 2005
Publisher: © Elsevier
Citation: VLADISAVLJEVIC, G.T., SHIMIZU, M. and NAKASHIMA, T., 2005. Permeability of hydrophilic and hydrophobic Shirasu-porous-glass (SPG) membranes to pure liquids and its microstructure. Journal of Membrane Science, 250 (1-2), pp.69-77.
Abstract: Morphological properties of hydrophilic and hydrophobic Shirasu-porous-glass (SPG) membranes were investigated over a wide range of mean pore sizes (0.252–20.3 μm) by liquid permeability measurements, scanning electron microscopy and Hg porosimetry. Hydrophobic modification of membrane surface was made by surface coating with silicone resin. The results are discussed using the non-uniform capillary bundle model of membrane permeability. The mean pore tortuosity of 1.28 was kept constant over the whole range of mean pore sizes investigated. The SEM images confirmed that the geometry of pore network was similar for all SPG membranes, irrespective of their mean pore size. The span of pore size distribution ranged from 0.28 to 0.68 and the number of pores per unit cross-sectional membrane area from 109 to 1013 m−2. The membrane resistance was unchanged after surface treatment with silicone resin, which means that the pores were not plugged by the resin, even in the submicron range of mean pore sizes.
Description: This is the author’s version of a work that was accepted for publication in Journal of Membrane Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published at: http://dx.doi.org/10.1016/j.memsci.2004.10.017
Version: Accepted for publication
DOI: 10.1016/j.memsci.2004.10.017
URI: https://dspace.lboro.ac.uk/2134/10550
Publisher Link: http://www.journals.elsevier.com/journal-of-membrane-science/
ISSN: 0376-7388
Appears in Collections:Published Articles (Chemical Engineering)

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