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Superhydrophobic nanofibers electrospun by surface segregating fluorinated amphiphilic additive for membrane distillation

dc.contributor.authorKhayet Souhaimi, Mohamed
dc.contributor.authorGarcía Payo, M. Carmen
dc.contributor.authorMatsuura, T.
dc.date.accessioned2025-01-21T15:50:42Z
dc.date.available2025-01-21T15:50:42Z
dc.date.issued2019
dc.description.abstractA facile route for the in situ surface modification and mechanical strength-enhancement of electrospun nanofibers is described. Blends of a host hydrophilic polymer, polysulfone (PSF), and small quantities of a fluorinated polyurethane additive (FPA) up to 6 wt% in the PSF blend were considered. During electrospinning, this additive undergoes spontaneous surface segregation resulting in nanofibers with an improved hydrophobic character attributed mainly to the detected fluorine-rich surface and enhanced mechanical properties. We report the effects of the fluorinated additive content in the blend on the morphological and structural characteristics of the electrospun nanofibrous mats (ENMs) including their inter-fiber space and void volume fraction. ENMs with a superhydrophobic surface could be prepared using at least 3 wt% FPA in the PSF blend. The ENMs were tested in desalination by membrane distillation (MD) and competitive permeate fluxes as high as 53.8 kg/m2h, with stable low permeate electrical conductivities (< 5.1 μS/cm), were achieved for the ENM prepared with 4.5 wt% FPA in the PSF blend, when the feed was 30 g/L NaCl aqueous solution and the transmembrane temperature difference was 60°C, without any inter-fiber space wetting being detected.
dc.description.departmentDepto. de Estructura de la Materia, Física Térmica y Electrónica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Economía y Competitividad (España)
dc.description.statuspub
dc.identifier.citationKhayet, M., et al. «Superhydrophobic Nanofibers Electrospun by Surface Segregating Fluorinated Amphiphilic Additive for Membrane Distillation». Journal of Membrane Science, vol. 588, octubre de 2019, p. 117215. DOI.org (Crossref), https://doi.org/10.1016/j.memsci.2019.117215
dc.identifier.doi10.1016/j.memsci.2019.117215
dc.identifier.essn1873-3123
dc.identifier.issn0376-7388
dc.identifier.officialurlhttps://doi.org/10.1016/j.memsci.2019.117215
dc.identifier.relatedurlhttps://www.sciencedirect.com/science/article/pii/S0376738819310713
dc.identifier.urihttps://hdl.handle.net/20.500.14352/115430
dc.journal.titleJournal of Membrane Science
dc.language.isoeng
dc.page.final117215-11
dc.page.initial117215-1
dc.publisherElsevier
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO//CTM2015-65348-C2-2-R/ES/INNOVACION Y RECICLAJE DE MEMBRANAS PARA EL TRATAMIENTO DE AGUA POR OSMOSIS DIRECTA Y DESTILACION EN MEMBRANA/
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.cdu538.9
dc.subject.cdu620.3
dc.subject.keywordNanofiber
dc.subject.keywordSurface modification
dc.subject.keywordElectrospinning
dc.subject.keywordFluorinated polyurethane
dc.subject.keywordPolysulfone
dc.subject.keywordSuperhydrophobicity
dc.subject.keywordMembrane distillation
dc.subject.ucmCiencias
dc.subject.unesco22 Física
dc.titleSuperhydrophobic nanofibers electrospun by surface segregating fluorinated amphiphilic additive for membrane distillation
dc.typejournal article
dc.type.hasVersionAM
dc.volume.number588
dspace.entity.typePublication
relation.isAuthorOfPublication8e32e718-0959-4e6c-9e04-891d3d43d640
relation.isAuthorOfPublication4445a915-d69c-4da6-8878-c17f5b0b7811
relation.isAuthorOfPublication.latestForDiscovery8e32e718-0959-4e6c-9e04-891d3d43d640

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