Dual-skinned polyamide/poly(vinylidene fluoride)/cellulose acetate membranes with embedded woven

Handle URI:
http://hdl.handle.net/10754/622007
Title:
Dual-skinned polyamide/poly(vinylidene fluoride)/cellulose acetate membranes with embedded woven
Authors:
Phuoc, Duong ( 0000-0002-0949-3505 ) ; Nunes, Suzana Pereira ( 0000-0002-3669-138X ) ; Chung, Tai-Shung
Abstract:
We propose multilayer membranes including (i) a thin selective polyamide (PA) layer prepared via interfacial polymerization, (ii) a poly (vinylidene fluoride) (PVDF) asymmetric porous support with high adhesion to the PA layer and high mechanical strength, (iii) a strong woven fabric, and (iv) fouling resistant porous cellulose acetate (CA) layer. The PA layer rejects solutes of the draw solution. The PVDF/woven fabric/CA (PVDF/CA) integrated layer performs as a mechanical support with unique properties for forward osmosis (FO) applications. It consists of a modified PVDF top layer suitable for the deposition of a PA layer and a highly hydrophilic bottom layer (CA) with a tunable pore size to minimize foulant deposition and intrusion onto and into the support. The experimental results using bovine serum albumin (BSA) as a model foulant show that the presence of the CA layer at the bottom of the FO membrane (PA/PVDF/CA) reduces 75% fouling propensity compared to the simple FO membrane made of PVDF, woven fabric and PA (PA/PVDF). Fouling tests with 2000 ppm oily feed faced the bottom of the FO membranes further indicate the superiority of the PA/PVDF/CA membrane compared to the PA/PVDF membrane. Moreover, the bottom CA layer can be adjusted with a flexible range of pore size, varied from sub-micron to sub-nanometer depending on the feed composition. The newly developed multilayer FO membrane has comparable performance to the state-of-the-art membrane with added tailored fouling resistance for specific wastewater feeds.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Environmental Science and Engineering Program
Citation:
Duong PHH, Nunes SP, Chung T-S (2016) Dual-skinned polyamide/poly(vinylidene fluoride)/cellulose acetate membranes with embedded woven. Journal of Membrane Science 520: 840–849. Available: http://dx.doi.org/10.1016/j.memsci.2016.08.047.
Publisher:
Elsevier BV
Journal:
Journal of Membrane Science
Issue Date:
31-Aug-2016
DOI:
10.1016/j.memsci.2016.08.047
Type:
Article
ISSN:
0376-7388
Sponsors:
The authors would like to thank King Abdullah University of Science and Technology (KAUST) for funding this research project.
Additional Links:
http://www.sciencedirect.com/science/article/pii/S0376738816314259
Appears in Collections:
Articles; Environmental Science and Engineering Program; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorPhuoc, Duongen
dc.contributor.authorNunes, Suzana Pereiraen
dc.contributor.authorChung, Tai-Shungen
dc.date.accessioned2016-12-13T06:46:50Z-
dc.date.available2016-12-13T06:46:50Z-
dc.date.issued2016-08-31en
dc.identifier.citationDuong PHH, Nunes SP, Chung T-S (2016) Dual-skinned polyamide/poly(vinylidene fluoride)/cellulose acetate membranes with embedded woven. Journal of Membrane Science 520: 840–849. Available: http://dx.doi.org/10.1016/j.memsci.2016.08.047.en
dc.identifier.issn0376-7388en
dc.identifier.doi10.1016/j.memsci.2016.08.047en
dc.identifier.urihttp://hdl.handle.net/10754/622007-
dc.description.abstractWe propose multilayer membranes including (i) a thin selective polyamide (PA) layer prepared via interfacial polymerization, (ii) a poly (vinylidene fluoride) (PVDF) asymmetric porous support with high adhesion to the PA layer and high mechanical strength, (iii) a strong woven fabric, and (iv) fouling resistant porous cellulose acetate (CA) layer. The PA layer rejects solutes of the draw solution. The PVDF/woven fabric/CA (PVDF/CA) integrated layer performs as a mechanical support with unique properties for forward osmosis (FO) applications. It consists of a modified PVDF top layer suitable for the deposition of a PA layer and a highly hydrophilic bottom layer (CA) with a tunable pore size to minimize foulant deposition and intrusion onto and into the support. The experimental results using bovine serum albumin (BSA) as a model foulant show that the presence of the CA layer at the bottom of the FO membrane (PA/PVDF/CA) reduces 75% fouling propensity compared to the simple FO membrane made of PVDF, woven fabric and PA (PA/PVDF). Fouling tests with 2000 ppm oily feed faced the bottom of the FO membranes further indicate the superiority of the PA/PVDF/CA membrane compared to the PA/PVDF membrane. Moreover, the bottom CA layer can be adjusted with a flexible range of pore size, varied from sub-micron to sub-nanometer depending on the feed composition. The newly developed multilayer FO membrane has comparable performance to the state-of-the-art membrane with added tailored fouling resistance for specific wastewater feeds.en
dc.description.sponsorshipThe authors would like to thank King Abdullah University of Science and Technology (KAUST) for funding this research project.en
dc.publisherElsevier BVen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0376738816314259en
dc.subjectDual-skinned membraneen
dc.subjectMultilayer membraneen
dc.subjectForward osmosisen
dc.subjectFouling resistanceen
dc.titleDual-skinned polyamide/poly(vinylidene fluoride)/cellulose acetate membranes with embedded wovenen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.identifier.journalJournal of Membrane Scienceen
dc.eprint.versionPost-printen
dc.contributor.institutionNational University of Singapore, Department of Chemical and Biomolecular Engineering, 4 Engineering Drive 4, Singapore, Singaporeen
kaust.authorPhuoc, Duongen
kaust.authorNunes, Suzana Pereiraen
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