File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Synthesis and characterization of flat-sheet thin film composite forward osmosis membranes

TitleSynthesis and characterization of flat-sheet thin film composite forward osmosis membranes
Authors
KeywordsFinger-Like Pore Structure
Forward Osmosis
Interfacial Polymerization
Internal Concentration Polarization
Structural Parameter
Thin Film Composite Polyamide Membrane
Issue Date2011
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memsci
Citation
Journal Of Membrane Science, 2011, v. 372 n. 1-2, p. 292-302 How to Cite?
AbstractForward osmosis (FO) technology has become increasingly attractive in the past decades for water related applications and will likely continue to develop rapidly in the future. This calls for the development of high performance FO membranes. Thin film composite (TFC) polyamide FO membranes with tailored support structure were prepared in the current study. The porous polysulfone substrates with finger-like pore structures were prepared via phase inversion, and the polyamide rejection layers were synthesized by interfacial polymerization. The resulting TFC FO membranes had small structural parameters (s=0.67-0.71mm) due to the thin cross-section, low tortuosity, and high porosity of the membrane substrates. Meanwhile, their rejection layers exhibited superior separation properties (higher water permeability and better selectivity) over commercial FO membranes. When the rejection layer is oriented towards the draw solution, FO water flux as high as 54L/m 2h can be achieved with a 2M NaCl draw solution while maintaining relatively low solute reverse diffusion. Comparison of the synthesized TFC FO membranes with commercial FO and RO membranes reveals the critical importance of the substrate structure, with straight finger-like pore structure preferred over spongy pore structure to minimize internal concentration polarization. In addition, membranes with high water permeability and excellent selectivity are preferred to achieve both high FO water flux and low solute flux. © 2011 Elsevier B.V.
Persistent Identifierhttp://hdl.handle.net/10722/185397
ISSN
2015 Impact Factor: 5.557
2015 SCImago Journal Rankings: 2.042
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWei, Jen_US
dc.contributor.authorQiu, Cen_US
dc.contributor.authorTang, CYen_US
dc.contributor.authorWang, Ren_US
dc.contributor.authorFane, AGen_US
dc.date.accessioned2013-07-30T07:32:14Z-
dc.date.available2013-07-30T07:32:14Z-
dc.date.issued2011en_US
dc.identifier.citationJournal Of Membrane Science, 2011, v. 372 n. 1-2, p. 292-302en_US
dc.identifier.issn0376-7388en_US
dc.identifier.urihttp://hdl.handle.net/10722/185397-
dc.description.abstractForward osmosis (FO) technology has become increasingly attractive in the past decades for water related applications and will likely continue to develop rapidly in the future. This calls for the development of high performance FO membranes. Thin film composite (TFC) polyamide FO membranes with tailored support structure were prepared in the current study. The porous polysulfone substrates with finger-like pore structures were prepared via phase inversion, and the polyamide rejection layers were synthesized by interfacial polymerization. The resulting TFC FO membranes had small structural parameters (s=0.67-0.71mm) due to the thin cross-section, low tortuosity, and high porosity of the membrane substrates. Meanwhile, their rejection layers exhibited superior separation properties (higher water permeability and better selectivity) over commercial FO membranes. When the rejection layer is oriented towards the draw solution, FO water flux as high as 54L/m 2h can be achieved with a 2M NaCl draw solution while maintaining relatively low solute reverse diffusion. Comparison of the synthesized TFC FO membranes with commercial FO and RO membranes reveals the critical importance of the substrate structure, with straight finger-like pore structure preferred over spongy pore structure to minimize internal concentration polarization. In addition, membranes with high water permeability and excellent selectivity are preferred to achieve both high FO water flux and low solute flux. © 2011 Elsevier B.V.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memscien_US
dc.relation.ispartofJournal of Membrane Scienceen_US
dc.subjectFinger-Like Pore Structureen_US
dc.subjectForward Osmosisen_US
dc.subjectInterfacial Polymerizationen_US
dc.subjectInternal Concentration Polarizationen_US
dc.subjectStructural Parameteren_US
dc.subjectThin Film Composite Polyamide Membraneen_US
dc.titleSynthesis and characterization of flat-sheet thin film composite forward osmosis membranesen_US
dc.typeArticleen_US
dc.identifier.emailTang, CY: tangc@hku.hken_US
dc.identifier.authorityTang, CY=rp01765en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.memsci.2011.02.013en_US
dc.identifier.scopuseid_2-s2.0-79953024766en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79953024766&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume372en_US
dc.identifier.issue1-2en_US
dc.identifier.spage292en_US
dc.identifier.epage302en_US
dc.identifier.isiWOS:000289829200032-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridWei, J=55360900400en_US
dc.identifier.scopusauthoridQiu, C=36019493600en_US
dc.identifier.scopusauthoridTang, CY=35489259800en_US
dc.identifier.scopusauthoridWang, R=35081334000en_US
dc.identifier.scopusauthoridFane, AG=35593963600en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats