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Comparison between hydrophilic and hydrophobic metal nanoparticles on the phase separation phenomena during formation of asymmetric polyethersulphone membranes

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Comparison between hydrophilic and hydrophobic metal nanoparticles on the phase separation phenomena during formation of asymmetric polyethersulphone membranes

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dc.contributor.author García Ivars, Jorge es_ES
dc.contributor.author Iborra Clar, María Isabel es_ES
dc.contributor.author Alcaina Miranda, María Isabel es_ES
dc.contributor.author Van der Bruggen, Bart es_ES
dc.date.accessioned 2016-01-05T09:26:39Z
dc.date.available 2016-01-05T09:26:39Z
dc.date.issued 2015-11-01
dc.identifier.issn 0376-7388
dc.identifier.uri http://hdl.handle.net/10251/59362
dc.description.abstract Inorganic nanoparticles have been applied as additive in membrane synthesis for improving different properties from the base polymer such as hydrophilicity, fouling resistance or permselectivity. To investigate the changes caused by the presence of the inorganic nanoparticles in the formation of the membrane structure, two different metallic compounds with opposite hydrophilicity were used as additives: hydrophilic zinc oxide (ZnO) and hydrophobic tungsten disulphide (WS2). For this purpose, the effect of these metal nanoparticles at ultra-low concentrations (0.05 and 0.25 wt% metal nanoparticles/polymer ratio) in the preparation of flat-sheet membranes based on polyethersulphone (PES) by immersion-precipitation method was investigated. N-methyl-2-pyrrolidone (NMP) was used as solvent. The influence of both metal nanoparticles on the characteristics and permselective properties of PES membranes was studied with microscopic observations, contact angle measurements, and filtration experiments. Although the incorporation of metal nanoparticles could turn the system into thermodynamically unstable, the demixing process during formation of membranes was slightly delayed, suppressing the macrovoid formation (remarkably using WS2). Regardless the nature of the metal nanoparticles, results showed an overall improvement in membrane hydrophilicity and permselectivity by adding metal nanoparticles compared to the control PES membrane, demonstrating that the behaviour of both metal nanoparticles at ultra-low concentrations was very similar. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Journal of Membrane Science es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Membrane synthesis es_ES
dc.subject Hydrophilicity es_ES
dc.subject Phase inversion es_ES
dc.subject Metal nanoparticles es_ES
dc.subject Filtration experiments. es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title Comparison between hydrophilic and hydrophobic metal nanoparticles on the phase separation phenomena during formation of asymmetric polyethersulphone membranes es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.memsci.2015.07.009
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Seguridad Industrial, Radiofísica y Medioambiental - Institut de Seguretat Industrial, Radiofísica i Mediambiental es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear es_ES
dc.description.bibliographicCitation García Ivars, J.; Iborra Clar, MI.; Alcaina Miranda, MI.; Van Der Bruggen, B. (2015). Comparison between hydrophilic and hydrophobic metal nanoparticles on the phase separation phenomena during formation of asymmetric polyethersulphone membranes. Journal of Membrane Science. 493:709-722. doi:10.1016/j.memsci.2015.07.009 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.memsci.2015.07.00 es_ES
dc.description.upvformatpinicio 709 es_ES
dc.description.upvformatpfin 722 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 493 es_ES
dc.relation.senia 292474 es_ES
dc.identifier.eissn 1873-3123


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