Developing a new superhydrophilic and superoleophobic poly(4-(1-vinyl-1H-imidazol-3-ium-3-yl) butane-1-sulfonate): vinyl imidazole@Perfluorooctanoic acid@SiO2 coated stainless steel mesh for highly efficient, stable, and durable oil/water separation / Mohammad Reza Ghadimi in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 2 (03/2021)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 18, N° 2 (03/2021) . - p. 511-521 Titre : Developing a new superhydrophilic and superoleophobic poly(4-(1-vinyl-1H-imidazol-3-ium-3-yl) butane-1-sulfonate): vinyl imidazole@Perfluorooctanoic acid@SiO2 coated stainless steel mesh for highly efficient, stable, and durable oil/water separation Type de document : texte imprimé Auteurs : Mohammad Reza Ghadimi, Auteur ; Roozbeh Siavash Moakhar, Auteur ; Setare Amirpoor, Auteur ; Mohammad Azad, Auteur ; Abolghasem Dolati, Auteur Année de publication : 2021 Article en page(s) : p. 511-521 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Caractérisation Nanostructures Polymères Revêtements organiques Séparation huile/eau Index. décimale : 667.9 Revêtements et enduits Résumé : The design and development of efficient approaches for water–oil separation have had widespread interest. Most previously introduced techniques and materials used for development of the successful separation of oily wastewater could not answer all the desired demands, such as being efficient and environmentally and economically friendly. Therefore, in seeking a novel method capable of answering these expectations, surfaces with special wettability were introduced. A novel, reusable, and recyclable superhydrophilic and superoleophobic poly(Vsim-Vim)@PFOA@SiO2 nanocomposite-coated stainless steel mesh was synthesized through a facile preparation process. Since the most important factors of these coatings are their oleophobicity and hydrophilicity values, the water contact angle (WCA) and the oil contact angle (OCA) were measured. The coating indicated the excellent characteristics in which the results showed that WCA was 0°, while OCA was 142°, which confirmed remarkable superhydrophilicity and superoleophobicity, respectively. It is worth mentioning that the coating owes its surface behavior mainly to the finer size of mesh and formation of silica, which causes the higher roughness and better oleophobicity, reduction of the surface energy of the synthesized poly(Vsim-Vim)@SiO2 nanocomposite by PFOA, the formation of hierarchical micro-nanometer scale roughness structures on the coating surface, and stable adhesion of SiO2 nanoparticles into poly(Vsim-Vim). Eventually, superb oil/water separation efficiency of 95% with high stability was attained. This result implied that the fabricated coating is a suitable candidate for water–oil emulsion separation which can potentially be employed in green industrial applications. Also, we believe this approach provides a potential application in controllable oil/water separation in large volumes. Note de contenu : - Table 1 : The sol of poly(Vsim-Vim)@PFOA@SiO2 nanocomposite for 15 mL water solvent - Table 2 : The atomic percentage of substances due to EDS results before and after a durability test in water for 10 days DOI : https://doi.org/10.1007/s11998-020-00420-6 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00420-6.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35611 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
22701	-	Périodique	Bibliothèque principale	Documentaires	Disponible

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