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dc.contributor.authorMahalingam, Dinesh
dc.contributor.authorKim, Dooli
dc.contributor.authorNunes, Suzana. P.
dc.date.accessioned2017-07-26T06:19:10Z
dc.date.available2017-07-26T06:19:10Z
dc.date.issued2017-07-18
dc.identifier.citationMahalingam DK, Kim D, Nunes SP (2017) Polyethersulfone/Graphene Oxide Ultrafiltration Membranes from Solutions in Ionic Liquid. MRS Advances: 1–7. Available: http://dx.doi.org/10.1557/adv.2017.492.
dc.identifier.issn2059-8521
dc.identifier.doi10.1557/adv.2017.492
dc.identifier.urihttp://hdl.handle.net/10754/625257
dc.description.abstractNovel high flux polyethersulfone (PES) ultrafiltration membranes were fabricated by incorporating different amounts of graphene oxide (GO) sheets to PES as nanofillers. The membranes were prepared from solutions in 50/50 1-ethyl-3-methylimidazolium-diethylphosphate/N,N-dimethyl formamide. It was observed that the water permeance increased from 550 to 800 L m-2h-1bar-1, with incorporation of 1 wt% GO, keeping a molecular weight cut-off (MWCO) of approximately 32-34 kg mol-1. Cross-sectional scanning electron microscopy images of GO/PES membranes showed the formation of ultrathin selective layer unlike pristine membranes. Contact angle measurements confirmed the increase of hydrophilicity, by increasing the GO concentration. The rejection of humic acid and bovine serum albumin was demonstrated. The mechanical properties were improved, compared with the pristine membranes. The performance was just above the trade-off relationship between permeance and separation factor for PES membranes reported in the literature.
dc.description.sponsorshipThis work was sponsored by King Abdullah University of Science and Technology (KAUST). The authors thank Dr. Mahendra Kumar (KAUST) for his assistance in GO synthesis and Prof. Mainak Majumder for discussions in the early stage of this work.
dc.publisherCambridge University Press (CUP)
dc.relation.urlhttps://www.cambridge.org/core/journals/mrs-advances/article/polyethersulfonegraphene-oxide-ultrafiltration-membranes-from-solutions-in-ionic-liquid/EE9ED319050A1020F6357786B8A6C3A2
dc.rightsArchived with thanks to MRS Advances
dc.titlePolyethersulfone/Graphene Oxide Ultrafiltration Membranes from Solutions in Ionic Liquid
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.identifier.journalMRS Advances
dc.eprint.versionPublisher's Version/PDF
kaust.personMahalingam, Dinesh
kaust.personKim, Dooli
kaust.personNunes, Suzana. P.
refterms.dateFOA2018-06-13T09:36:30Z
dc.date.published-online2017-07-18
dc.date.published-print2017


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