Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/150367
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dc.contributor.authorTian, Miaoen_US
dc.contributor.authorLiao, Yuanen_US
dc.contributor.authorWang, Rongen_US
dc.date.accessioned2021-05-23T23:59:52Z-
dc.date.available2021-05-23T23:59:52Z-
dc.date.issued2019-
dc.identifier.citationTian, M., Liao, Y. & Wang, R. (2019). Engineering a superwetting thin film nanofibrous composite membrane with excellent antifouling and self-cleaning properties to separate surfactant-stabilized oil-in-water emulsions. Journal of Membrane Science, 596, 117721-. https://dx.doi.org/10.1016/j.memsci.2019.117721en_US
dc.identifier.issn0376-7388en_US
dc.identifier.urihttps://hdl.handle.net/10356/150367-
dc.description.abstractIn recent years, novel superwetting membranes have gained popularity for oily wastewater treatments via synergy between surface chemistry and topography. However, the water fluxes of the superwetting membranes normally decrease rapidly due to pore clogging and surface fouling, especially when treating surfactant-stabilized oil-in-water emulsions. Herein, a facile strategy is proposed to develop a superwetting thin film nanofibrous composite (TFNC) membrane with remarkable antifouling and self-cleaning properties to effectively separate surfactant-stabilized oil-in-water emulsions. The membrane is composed of an ultrathin carbon nanotubes (CNTs)-polyvinyl alcohol (PVA) composite skin layer, and a highly porous electrospun nanofibrous substrate as well as a non-woven mechanical support. The robust three-dimensional (3D) CNTs composite skin layer were immobilized on the nanofibrous substrate surface by crosslinking the CNTs with PVA. This skin layer serves as a functional barrier to reject oil droplets, which exhibited excellent performance in treating surfactant-stabilized oil-in-water emulsions with a rejection of 95% and a competitive flux of ~60 Lm−2h−1 under an ultra-low pressure (20 kPa) in a cross-flow filtration process. Moreover, the CNTs composite layer also protects the membrane surface from fouling. The TFNC membrane possesses outstanding reusability, as the water flux could be recovered by 100% in a continuous cyclic operation without cleaning, which should be attributed to the underwater oil repellence of its superhydrophilic surface and self-cleaning property based on the capillary pumping effect occurred in the micron/nano-channels of the membrane surface.en_US
dc.description.sponsorshipEconomic Development Board (EDB)en_US
dc.language.isoenen_US
dc.relation.ispartofJournal of Membrane Scienceen_US
dc.rights© 2019 Elsevier B.V. All rights reserved. This paper was published in Journal of Membrane Science and is made available with permission of Elsevier B.V.en_US
dc.subjectEngineering::Environmental engineeringen_US
dc.titleEngineering a superwetting thin film nanofibrous composite membrane with excellent antifouling and self-cleaning properties to separate surfactant-stabilized oil-in-water emulsionsen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.contributor.researchNanyang Environment and Water Research Instituteen_US
dc.contributor.researchSingapore Membrane Technology Centreen_US
dc.identifier.doi10.1016/j.memsci.2019.117721-
dc.description.versionAccepted versionen_US
dc.identifier.scopus2-s2.0-85076251017-
dc.identifier.volume596en_US
dc.identifier.spage117721en_US
dc.subject.keywordsSurfactant-stabilized Oil-in-water Emulsionen_US
dc.subject.keywordsThin Film Nanofibrous Composite Membraneen_US
dc.description.acknowledgementWe acknowledge funding support from Singapore Economic Development Board to the Singapore Membrane Technology Centre (SMTC).en_US
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