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Performance improvement of polysulfone ultrafiltration membrane using well - dispersed polyaniline – poly (vinylpyrrolidone) nanocomposite as the additive / Song Zhao in Industrial & engineering chemistry research, Vol. 51 N° 12 (Mars 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 12 (Mars 2012) . - pp. 4661–4672 Titre : Performance improvement of polysulfone ultrafiltration membrane using well - dispersed polyaniline – poly (vinylpyrrolidone) nanocomposite as the additive Type de document : texte imprimé Auteurs : Song Zhao, Auteur ; Zhi Wang, Auteur ; Xin Wei, Auteur Année de publication : 2012 Article en page(s) : pp. 4661–4672 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Ultrafiltration  membrane  Nanocomposite Résumé : Well-dispersed polyaniline–poly(vinylpyrrolidone) (PANI–PVP) nanocomposite was synthesized through dispersion polymerization and then used as a novel additive to prepare a polysulfone (PSf)/PANI–PVP nanocomposite membrane via immersion precipitation process. During membrane formation, a portion of PVP acted as a pore-forming agent while another PANI–PVP nanocomposite, combined by hydrogen bonds between carbonyl groups of PVP and N-hydrogen groups of PANI, acted as a hydrophilic modification agent. The addition of PANI–PVP nanocomposite increased membrane surface pore size, porosity, and hydrophilicity. Pure water fluxes of PSf/PANI–PVP nanocomposite membranes were 1.8–3.5 times that of PSf membrane with a slight change of bovine serum albumin (BSA) rejection. The membrane antifouling property was examined by the cross-flow ultafiltration using BSA solution as the model system. The results of flux decline behavior and flux recovery ratio showed that PSf/PANI–PVP nanocomposite membranes had an excellent antifouling property. Compared with PSf/PVP membranes prepared using PVP as the additive, PSf/PANI–PVP nanocomposite membranes processed higher pure water flux and better hydrophilicity, antifouling property, and stability. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202503p [article] Performance improvement of polysulfone ultrafiltration membrane using well - dispersed polyaniline – poly (vinylpyrrolidone) nanocomposite as the additive [texte imprimé] / Song Zhao, Auteur ; Zhi Wang, Auteur ; Xin Wei, Auteur . - 2012 . - pp. 4661–4672. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 12 (Mars 2012) . - pp. 4661–4672 Mots-clés : Ultrafiltration  membrane  Nanocomposite Résumé : Well-dispersed polyaniline–poly(vinylpyrrolidone) (PANI–PVP) nanocomposite was synthesized through dispersion polymerization and then used as a novel additive to prepare a polysulfone (PSf)/PANI–PVP nanocomposite membrane via immersion precipitation process. During membrane formation, a portion of PVP acted as a pore-forming agent while another PANI–PVP nanocomposite, combined by hydrogen bonds between carbonyl groups of PVP and N-hydrogen groups of PANI, acted as a hydrophilic modification agent. The addition of PANI–PVP nanocomposite increased membrane surface pore size, porosity, and hydrophilicity. Pure water fluxes of PSf/PANI–PVP nanocomposite membranes were 1.8–3.5 times that of PSf membrane with a slight change of bovine serum albumin (BSA) rejection. The membrane antifouling property was examined by the cross-flow ultafiltration using BSA solution as the model system. The results of flux decline behavior and flux recovery ratio showed that PSf/PANI–PVP nanocomposite membranes had an excellent antifouling property. Compared with PSf/PVP membranes prepared using PVP as the additive, PSf/PANI–PVP nanocomposite membranes processed higher pure water flux and better hydrophilicity, antifouling property, and stability. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie202503p