Fabrication and characterization of functionally graded poly(vinylidine fluoride)-silver nanocomposite hollow fibers for sustainable water recovery

Handle URI:
http://hdl.handle.net/10754/563909
Title:
Fabrication and characterization of functionally graded poly(vinylidine fluoride)-silver nanocomposite hollow fibers for sustainable water recovery
Authors:
Francis, Lijo; Ghaffour, Noreddine ( 0000-0003-2095-4736 ) ; Amy, Gary L.
Abstract:
Poly(vinylidine fluoride) (PVDF) asymmetric hydrophobic hollow fibers were fabricated successfully using dryjet wet spinning. Hydrophobic silver nanoparticles were synthesized and impregnated into the PVDF polymer matrix and functionally graded PVDF-silver nanocomposite hollow fibers are fabricated and tested in the direct contact membrane distillation (DCMD) process. The as-synthesized silver nanoparticles were characterized for Transmission Electron Microscopy (TEM), particle size distribution (PSD) and Ultra Violet (UV) visible spectroscopy. Both the PVDF and PVDF-silver nanocomposite asymmetric hollow fibers were characterized for their morphology, water contact angle and mechanical strength. Addition of hydrophobic silver nanoparticles was found to enhance the hydrophobicity and ~ 2.5 fold increase the mechanical strength of the hollow fibers. A water vapor flux of 31.9kg m-2 h-1 was observed at a feed inlet temperature of 80 °C and at a permeate temperature of 20 °C in the case of hollow fiber membrane modules fabricated using PVDF hollow fibers; the water vapor flux was found to be increased by about 8% and to reach 34.6kg m-2 h-1 for the hollow fiber membrane modules fabricated from the PVDF-silver nanocomposite hollow fibers at the same operating conditions with 99.99% salt rejection.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division
Publisher:
American Scientific Publishers
Journal:
Science of Advanced Materials
Issue Date:
1-Dec-2014
DOI:
10.1166/sam.2014.1980
Type:
Article
ISSN:
19472935
Additional Links:
http://www.ingentaconnect.com/content/asp/sam/2014/00000006/00000012/art00010
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorFrancis, Lijoen
dc.contributor.authorGhaffour, Noreddineen
dc.contributor.authorAmy, Gary L.en
dc.date.accessioned2016-04-07T13:11:46Zen
dc.date.available2015-08-03T12:19:11Zen
dc.date.available2016-04-07T13:11:46Zen
dc.date.issued2014-12-01en
dc.identifier.issn19472935en
dc.identifier.doi10.1166/sam.2014.1980en
dc.identifier.urihttp://hdl.handle.net/10754/563909en
dc.description.abstractPoly(vinylidine fluoride) (PVDF) asymmetric hydrophobic hollow fibers were fabricated successfully using dryjet wet spinning. Hydrophobic silver nanoparticles were synthesized and impregnated into the PVDF polymer matrix and functionally graded PVDF-silver nanocomposite hollow fibers are fabricated and tested in the direct contact membrane distillation (DCMD) process. The as-synthesized silver nanoparticles were characterized for Transmission Electron Microscopy (TEM), particle size distribution (PSD) and Ultra Violet (UV) visible spectroscopy. Both the PVDF and PVDF-silver nanocomposite asymmetric hollow fibers were characterized for their morphology, water contact angle and mechanical strength. Addition of hydrophobic silver nanoparticles was found to enhance the hydrophobicity and ~ 2.5 fold increase the mechanical strength of the hollow fibers. A water vapor flux of 31.9kg m-2 h-1 was observed at a feed inlet temperature of 80 °C and at a permeate temperature of 20 °C in the case of hollow fiber membrane modules fabricated using PVDF hollow fibers; the water vapor flux was found to be increased by about 8% and to reach 34.6kg m-2 h-1 for the hollow fiber membrane modules fabricated from the PVDF-silver nanocomposite hollow fibers at the same operating conditions with 99.99% salt rejection.en
dc.publisherAmerican Scientific Publishersen
dc.relation.urlhttp://www.ingentaconnect.com/content/asp/sam/2014/00000006/00000012/art00010en
dc.rightsIf the article has been prepared by an employee within the duration of his or her employment, the employer reserves the right to make copies of the Work in print format for its own internal use or for promotional purposes only provided that proper reference is made to the original source of publication and to the Publisher. See: http://www.aspbs.com/sam/copyright_sam.pdfen
dc.subjectHollow fiber membranesen
dc.subjectMechanical strengthen
dc.subjectMembrane distillationen
dc.subjectPermeation fluxen
dc.subjectSilver nanoparticlesen
dc.titleFabrication and characterization of functionally graded poly(vinylidine fluoride)-silver nanocomposite hollow fibers for sustainable water recoveryen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalScience of Advanced Materialsen
dc.eprint.versionPost-printen
kaust.authorFrancis, Lijoen
kaust.authorGhaffour, Noreddineen
kaust.authorAmy, Gary L.en

Version History

VersionItem Editor Date Summary
2 10754/563909grenzdm2016-04-07 13:58:41.0Addition of accepted manuscript file received from Noreddine Ghaffour.
1 10754/563909.1grenzdm2015-08-03 13:19:11.0null
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