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Enhancement in hydrophilicity of different polymer phase-inversion ultrafiltration membranes by introducing PEG/Al2O3 nanoparticles

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Enhancement in hydrophilicity of different polymer phase-inversion ultrafiltration membranes by introducing PEG/Al2O3 nanoparticles

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dc.contributor.author García Ivars, Jorge es_ES
dc.contributor.author Alcaina Miranda, María Isabel es_ES
dc.contributor.author Iborra Clar, María Isabel es_ES
dc.contributor.author Mendoza Roca, José Antonio es_ES
dc.contributor.author Pastor Alcañiz, Laura es_ES
dc.date.accessioned 2015-05-11T08:49:43Z
dc.date.available 2015-05-11T08:49:43Z
dc.date.issued 2014-05-13
dc.identifier.issn 1383-5866
dc.identifier.uri http://hdl.handle.net/10251/50005
dc.description.abstract The influence of the modification by additives in the characteristics of several ultrafiltration polymeric membranes was studied. Three asymmetric membranes with similar pore size (molecular weight cutoff (MWCO) of around 30 kDa) but different materials and pore microstructures – polysulfone, polyethersulfone and polyetherimide – were used. Effects of two different hydrophilic additives on membrane structure and the resulting performance were compared to determine the material with the best antifouling properties. Polyethyleneglycol (PEG) and alumina (Al2O3) were employed as additives in the phaseinversion method, N,N-Dimethylacetamide and deionized water were used as solvent and coagulant, respectively. Membranes were characterized in terms of hydraulic permeability, membrane resistance, MWCO profile and hydrophilicity (by membrane porosity and contact angle). The cross-sectional and membrane surface were also examined by microscopic techniques. Membrane antifouling properties were analysed by the experimental study of fouling/rinsing cycles using feed solutions of PEG of 35 kDa. Permeation and morphological studies showed that the addition of PEG/Al2O3 results in formation of a hydrophilic finger-like structure with macrovoids, whereas the addition of Al2O3 results in the formation of a hydrophilic structure with a dense top layer with Al2O3 nanoparticles and a porous sponge-like sublayer. Furthermore, polyethersulfone/PEG/Al2O3 membranes displayed superior antifouling properties and desirable ultrafiltration performance. 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 (Universitat Politecnica de Valencia) for contact angle measurements and BASF (Germany) and General Electric (United States) for supplying the polymers used. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Separation and Purification Technology es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Membrane preparation es_ES
dc.subject Hydrophilicity es_ES
dc.subject Phase-inversion method es_ES
dc.subject Alumina es_ES
dc.subject Polyethyleneglycol es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title Enhancement in hydrophilicity of different polymer phase-inversion ultrafiltration membranes by introducing PEG/Al2O3 nanoparticles es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.seppur.2014.03.012
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.; Alcaina Miranda, MI.; Iborra Clar, MI.; Mendoza Roca, JA.; Pastor Alcañiz, L. (2014). Enhancement in hydrophilicity of different polymer phase-inversion ultrafiltration membranes by introducing PEG/Al2O3 nanoparticles. Separation and Purification Technology. 128:45-57. doi:10.1016/j.seppur.2014.03.012 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.seppur.2014.03.012 es_ES
dc.description.upvformatpinicio 45 es_ES
dc.description.upvformatpfin 57 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 128 es_ES
dc.relation.senia 266365
dc.identifier.eissn 1873-3794
dc.contributor.funder BASF es_ES
dc.contributor.funder Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina es_ES
dc.contributor.funder General Electric es_ES
dc.contributor.funder Centro para el Desarrollo Tecnológico Industrial es_ES


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