Polyethersulfone/Graphene Oxide Ultrafiltration Membranes from Solutions in Ionic Liquid

Handle URI:
http://hdl.handle.net/10754/625257
Title:
Polyethersulfone/Graphene Oxide Ultrafiltration Membranes from Solutions in Ionic Liquid
Authors:
Mahalingam, Dinesh. K.; Kim, DooLi.; Nunes, Suzana. P.
Abstract:
Novel 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.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
Mahalingam 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.
Publisher:
Cambridge University Press (CUP)
Journal:
MRS Advances
Issue Date:
18-Jul-2017
DOI:
10.1557/adv.2017.492
Type:
Article
ISSN:
2059-8521
Sponsors:
This 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.
Additional Links:
https://www.cambridge.org/core/journals/mrs-advances/article/polyethersulfonegraphene-oxide-ultrafiltration-membranes-from-solutions-in-ionic-liquid/EE9ED319050A1020F6357786B8A6C3A2
Appears in Collections:
Articles; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorMahalingam, Dinesh. K.en
dc.contributor.authorKim, DooLi.en
dc.contributor.authorNunes, Suzana. P.en
dc.date.accessioned2017-07-26T06:19:10Z-
dc.date.available2017-07-26T06:19:10Z-
dc.date.issued2017-07-18en
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.en
dc.identifier.issn2059-8521en
dc.identifier.doi10.1557/adv.2017.492en
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.en
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.en
dc.publisherCambridge University Press (CUP)en
dc.relation.urlhttps://www.cambridge.org/core/journals/mrs-advances/article/polyethersulfonegraphene-oxide-ultrafiltration-membranes-from-solutions-in-ionic-liquid/EE9ED319050A1020F6357786B8A6C3A2en
dc.rightsArchived with thanks to MRS Advancesen
dc.titlePolyethersulfone/Graphene Oxide Ultrafiltration Membranes from Solutions in Ionic Liquiden
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalMRS Advancesen
dc.eprint.versionPublisher's Version/PDFen
kaust.authorMahalingam, Dinesh. K.en
kaust.authorKim, DooLi.en
kaust.authorNunes, Suzana. P.en
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