Show simple item record

dc.contributor.authorKarkooti, Amin
dc.contributor.authorYazdi, Alireza Zehtab
dc.contributor.authorChen, Pu
dc.contributor.authorMcGregor, Mick
dc.contributor.authorNazemifard, Neda
dc.contributor.authorSadrzadeh, Mohtada 16:43:30 (GMT) 16:43:30 (GMT)
dc.descriptionThe final publication is available at Elsevier via © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
dc.description.abstractWater-intensive industries have to comply with stringent environmental regulations and evolving regulatory frameworks requiring the development of new technologies for water recycling. Development of polymeric membranes may provide an effective solution to improve water recycling, but require finely-tuned pore size and surface chemistry for ionic and molecular sieving to be efficient. Additionally, fouling is a major challenge that limits the practical application of the membranes in water recycling in these industries. In this work, four different graphene oxide (GO) derivatives were incorporated into a polyethersulfone (PES) matrix via a non-solvent induced phase separation (NIPS) method. The GO derivatives used have different shapes (nanosheets vs nanoribbons) and different oxidation states (C/O = 1.05–8.01) with the potential to enhance water flux and suppress fouling of the membranes through controlled pore size, hydrophilicity, and surface charge. The permeation properties of the PES/GO membranes were evaluated using a water sample from the Athabasca oil sands of Alberta. The results for contact angle and streaming potential measurements indicate the formation of more hydrophilic and negatively charged PES/GO nanocomposite membranes. All graphene-based nanocomposite membranes demonstrated better water flux and rejection of organic matter compared to the unmodified PES membrane. The fouling measurement results revealed that fouling was impeded due to enhanced membrane surface properties. Longitudinally unzipped graphene oxide nanoribbons (GONR-L) at an optimum loading of 0.1 wt% (wt%) provided the maximum water flux (70 LMH at 60 psi), organic matter rejection (59%) and antifouling properties (30% improvement compared to pristine PES membrane). Flux recovery ratio experiments indicated a remarkable enhancement in the fouling resistance property of PES/GO nanocomposite membranes.en
dc.description.sponsorshipNatural Sciences and Engineering Research Council of Canada [33413]en
dc.description.sponsorshipNatural Resources Canada [32462]en
dc.description.sponsorshipSuncor Energy Incorporateden
dc.description.sponsorshipUniversity of Waterlooen
dc.description.sponsorshipDevon Canadaen
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.subjectOil sandsen
dc.subjectGraphene oxideen
dc.subjectGraphene nanoribbonen
dc.subjectNanocomposite membranesen
dc.subjectProduced water treatmenten
dc.titleDevelopment of advanced nanocomposite membranes using graphene nanoribbons and nanosheets for water treatmenten
dcterms.bibliographicCitationKarkooti, A., Yazdi, A. Z., Chen, P., McGregor, M., Nazemifard, N., & Sadrzadeh, M. (2018). Development of advanced nanocomposite membranes using graphene nanoribbons and nanosheets for water treatment. Journal of Membrane Science, 560, 97–107. doi:10.1016/j.memsci.2018.04.034en
uws.contributor.affiliation1Faculty of Engineeringen
uws.contributor.affiliation2Chemical Engineeringen

Files in this item


This item appears in the following Collection(s)

Show simple item record

Attribution-NonCommercial-NoDerivatives 4.0 International
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International


University of Waterloo Library
200 University Avenue West
Waterloo, Ontario, Canada N2L 3G1
519 888 4883

All items in UWSpace are protected by copyright, with all rights reserved.

DSpace software

Service outages