Synthesis and fabrication of nanostructured hydrophobic polyazole membranes for low-energy water recovery

Handle URI:
http://hdl.handle.net/10754/562439
Title:
Synthesis and fabrication of nanostructured hydrophobic polyazole membranes for low-energy water recovery
Authors:
Maab, Husnul; Francis, Lijo; Alsaadi, Ahmad Salem ( 0000-0002-5334-8305 ) ; Aubry, Cyril; Ghaffour, Noreddine ( 0000-0003-2095-4736 ) ; Amy, Gary L.; Nunes, Suzana Pereira ( 0000-0002-3669-138X )
Abstract:
Aromatic fluorinated polyoxadiazoles (F-POD) and polytriazoles (F-PT) were synthesized and for the first time manufactured into porous membranes by phase inversion and by electrospinning. The phase inversion F-POD membranes had a mean flow pore size (MFP) of 51nm, while for F-PT it was around 74nm. The electrospun membranes had a much larger pore size, the MFP for F-POD membrane was around 1.7μm and for F-PT it was 2.7μm. The membranes were tested for desalination of Red Sea water using direct contact membrane distillation (DCMD). By combining the high polymer hydrophobicity and high porosity, apparent contact angles up to 162° were obtained, assuring the operation with practically no liquid water leakage under pressure up to 0.9bar. Salt selectivity as high as 99.95% and water fluxes as high as 85Lm -2h -1 were demonstrated, operating at 80°C feed temperature and 22°C permeate. © 2012 Elsevier B.V.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division; Environmental Science and Engineering Program; Water Desalination & Reuse Research Cntr; Water Desalination and Reuse Research Center; Nanostructured Polymeric Membrane Lab
Publisher:
Elsevier BV
Journal:
Journal of Membrane Science
Issue Date:
Dec-2012
DOI:
10.1016/j.memsci.2012.07.009
Type:
Article
ISSN:
03767388
Appears in Collections:
Articles; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorMaab, Husnulen
dc.contributor.authorFrancis, Lijoen
dc.contributor.authorAlsaadi, Ahmad Salemen
dc.contributor.authorAubry, Cyrilen
dc.contributor.authorGhaffour, Noreddineen
dc.contributor.authorAmy, Gary L.en
dc.contributor.authorNunes, Suzana Pereiraen
dc.date.accessioned2015-08-03T10:38:15Zen
dc.date.available2015-08-03T10:38:15Zen
dc.date.issued2012-12en
dc.identifier.issn03767388en
dc.identifier.doi10.1016/j.memsci.2012.07.009en
dc.identifier.urihttp://hdl.handle.net/10754/562439en
dc.description.abstractAromatic fluorinated polyoxadiazoles (F-POD) and polytriazoles (F-PT) were synthesized and for the first time manufactured into porous membranes by phase inversion and by electrospinning. The phase inversion F-POD membranes had a mean flow pore size (MFP) of 51nm, while for F-PT it was around 74nm. The electrospun membranes had a much larger pore size, the MFP for F-POD membrane was around 1.7μm and for F-PT it was 2.7μm. The membranes were tested for desalination of Red Sea water using direct contact membrane distillation (DCMD). By combining the high polymer hydrophobicity and high porosity, apparent contact angles up to 162° were obtained, assuring the operation with practically no liquid water leakage under pressure up to 0.9bar. Salt selectivity as high as 99.95% and water fluxes as high as 85Lm -2h -1 were demonstrated, operating at 80°C feed temperature and 22°C permeate. © 2012 Elsevier B.V.en
dc.publisherElsevier BVen
dc.subjectMembrane distillationen
dc.subjectMembranesen
dc.subjectPolyoxadiazoleen
dc.subjectPolytriazoleen
dc.titleSynthesis and fabrication of nanostructured hydrophobic polyazole membranes for low-energy 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.contributor.departmentEnvironmental Science and Engineering Programen
dc.contributor.departmentWater Desalination & Reuse Research Cntren
dc.contributor.departmentWater Desalination and Reuse Research Centeren
dc.contributor.departmentNanostructured Polymeric Membrane Laben
dc.identifier.journalJournal of Membrane Scienceen
kaust.authorMaab, Husnulen
kaust.authorFrancis, Lijoen
kaust.authorAlsaadi, Ahmad Salemen
kaust.authorAubry, Cyrilen
kaust.authorGhaffour, Noreddineen
kaust.authorAmy, Gary L.en
kaust.authorNunes, Suzana Pereiraen
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