Constructing robust and magnetic PU sponges modified with Fe3O4/GO nanohybrids for efficient oil/water separation / Dongdong Ge in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 2 (03/2023)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 2 (03/2023) . - p. 661-670 Titre : Constructing robust and magnetic PU sponges modified with Fe3O4/GO nanohybrids for efficient oil/water separation Type de document : texte imprimé Auteurs : Dongdong Ge, Auteur ; Yun Zhang, Auteur ; Zhenshan Cui, Auteur ; Guilong Wang, Auteur ; Jun Liu, Auteur ; Xiaomeng Lv, Auteur Année de publication : 2023 Article en page(s) : p. 661-670 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Absorbants et adsorbants Caractérisation Eponges Hydrophobie Matériaux magnétiques Nanoparticules Oxyde de fer Oxyde de graphène Polyuréthanes Rugosité Index. décimale : 667.9 Revêtements et enduits Résumé : Metal oxides, due to their low cost, environmental friendliness and wide sources, have attracted great attention. We chose iron oxide/graphene oxide (Fe3O4/GO) nanohybrids to modify a PU sponge to increase the surface roughness of the sponge without damaging its inherent structural properties. The composite was then treated with octadecane thiol to reduce the surface energy and produce a superhydrophobic and oleophilic absorption material with a water contact angle of 157°. From the absorption experiment with simulated oily water (including diesel oil, lubricating oil, rapeseed oil, chloroform, N,N-dimethyl formamide, tetrahydrofuran, ethanol and acetone), it was found that the Fe3O4/GO-modified PU sponge could absorb up to 80–170 times its own weight while showing outstanding recyclability achieved by squeeze/absorption cycles. Moreover, the composite absorption material exhibited weak magnetic properties, suggesting its recycling practicability. These results provide a quick and simple strategy to deal with oil spills and chemical leakage. Note de contenu : - EXPERIMENTAL SECTION : Preparation of Fe3O4/GO nanohybrids - Synthesis of the M-PU sponge - RESULTS AND DISCUSSION : Processing of the PU sponge - Characterization of the Fe3O4/GO nanohybrids - Morphology and wettability of the M-PU sponge - Application of the M-PU sponge as an absorbent - Table 1 : The magnetism values of the Fe3O4/GO nanohybrids (a); M-PU sponge (b) DOI : https://doi.org/10.1007/s11998-022-00699-7 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00699-7.pdf?pdf=button% [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39310 [article]

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