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Surface photomodification of flat-sheet PES membranes with improved antifouling properties by varying UV irradiation time and additive solution pH

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Surface photomodification of flat-sheet PES membranes with improved antifouling properties by varying UV irradiation time and additive solution pH

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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 Mendoza Roca, José Antonio es_ES
dc.contributor.author Pastor Alcañiz, Laura es_ES
dc.date.accessioned 2016-06-07T11:16:44Z
dc.date.available 2016-06-07T11:16:44Z
dc.date.issued 2016-01-01
dc.identifier.issn 1385-8947
dc.identifier.uri http://hdl.handle.net/10251/65405
dc.description.abstract Different polyethersulfone ultrafiltration membranes modified using UV irradiation in the presence of additives with different nature: hydrophilic aluminium oxide (Al2O3) nanoparticles and organic polyethylene glycol (PEG). The influence of the additive concentration, the irradiation time and the pH of the additive solution on several membrane characteristics related to its antifouling properties were investigated. These properties were analysed by means of hydrophilicity measurements (water contact angle, degree of modification, water permeability, porosity, and pore size), surface microscopic techniques (ATR-FTIR, SEM and AFM) and cross-flow filtration experiments using industrial wastewaters (residual brines from table olive processing wastewaters). Results showed that all the PES membranes modified with different PEG/Al2O3 concentrations improved the hydrophilicity of the membrane, except for membranes modified at pH 7. In addition, superior antifouling properties were provided by PES membranes modified with nano-sized Al2O3 at a concentration of 0.5%, low irradiation time (10 min) and acidic pH values (about pH 3). Therefore, surface membrane modification via UV irradiation with hydrophilic compounds is an appropriate technique to improve membrane performance applied in certain industrial fields. es_ES
dc.description.sponsorship The authors of this work thank the financial support of CDTI (Centre for Industrial Technological Development) depending on the Spanish Ministry of Science and Innovation. The authors also thank the Center for Biomaterials and Tissue Engineering and the Electron Microscopy Service both from the Universitat Politecnica de Valencia. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Hydrophilicity es_ES
dc.subject Antifouling properties es_ES
dc.subject UV-induced surface modification es_ES
dc.subject Additive solution pH es_ES
dc.subject Polyethylene glycol/aluminium oxide nanoparticles es_ES
dc.subject Electron Microscopy Service of the UPV
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title Surface photomodification of flat-sheet PES membranes with improved antifouling properties by varying UV irradiation time and additive solution pH es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.cej.2015.07.078
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.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Hidráulica y Medio Ambiente - Departament d'Enginyeria Hidràulica i Medi Ambient es_ES
dc.description.bibliographicCitation García Ivars, J.; Iborra Clar, MI.; Alcaina Miranda, MI.; Mendoza Roca, JA.; Pastor Alcañiz, L. (2016). Surface photomodification of flat-sheet PES membranes with improved antifouling properties by varying UV irradiation time and additive solution pH. Chemical Engineering Journal. 283:231-242. doi:10.1016/j.cej.2015.07.078 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.cej.2015.07.078 es_ES
dc.description.upvformatpinicio 231 es_ES
dc.description.upvformatpfin 242 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 283 es_ES
dc.relation.senia 303509 es_ES
dc.identifier.eissn 1873-3212
dc.contributor.funder Ministerio de Ciencia e Innovación


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