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Preparation of porous polysulfone microspheres and their application in removal of oil from water / Qingbo Yu in Industrial & engineering chemistry research, Vol. 51 N° 23 (Juin 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 23 (Juin 2012) . - pp.8117–8122 Titre : Preparation of porous polysulfone microspheres and their application in removal of oil from water Type de document : texte imprimé Auteurs : Qingbo Yu, Auteur ; Yulun Tao, Auteur ; Yiping Huang, Auteur Année de publication : 2012 Article en page(s) : pp.8117–8122 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Microspheres  Oil Résumé : The monodisperse porous polysulfone (PSF) microspheres with hollow core/porous shell structure were prepared by a water-in-oil-in-water (W/O/W) emulsion solvent evaporation method. The morphology of PSF is investigated by using three different surfactants such as oleic acid, polyvinylpyrrolidone and polyoxyethylen(20)-sorbitanmonooleat. The prepared microspheres are developed as sorbents to remove oil from water due to their highly hydrophobic and superoleophilic properties. The PSF microspheres synthesized in the presence of oleic acid exhibit the best separation efficiency, which is 44.8 times higher than that of the pristine PSF powder. The microspheres with appropriate size, unsinkable properties, and excellent reproducibility can be quickly distributed and collected in seconds on the surface of water. The pore structure of PSF microspheres and interaction between oil and PSF are proposed to explain the high efficiency. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie203028h [article] Preparation of porous polysulfone microspheres and their application in removal of oil from water [texte imprimé] / Qingbo Yu, Auteur ; Yulun Tao, Auteur ; Yiping Huang, Auteur . - 2012 . - pp.8117–8122. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 23 (Juin 2012) . - pp.8117–8122 Mots-clés : Microspheres  Oil Résumé : The monodisperse porous polysulfone (PSF) microspheres with hollow core/porous shell structure were prepared by a water-in-oil-in-water (W/O/W) emulsion solvent evaporation method. The morphology of PSF is investigated by using three different surfactants such as oleic acid, polyvinylpyrrolidone and polyoxyethylen(20)-sorbitanmonooleat. The prepared microspheres are developed as sorbents to remove oil from water due to their highly hydrophobic and superoleophilic properties. The PSF microspheres synthesized in the presence of oleic acid exhibit the best separation efficiency, which is 44.8 times higher than that of the pristine PSF powder. The microspheres with appropriate size, unsinkable properties, and excellent reproducibility can be quickly distributed and collected in seconds on the surface of water. The pore structure of PSF microspheres and interaction between oil and PSF are proposed to explain the high efficiency. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie203028h