Magnetic CoFe2O4 – graphene hybrids / Yunjin Yao in Industrial & engineering chemistry research, Vol. 51 N° 17 (Mai 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 17 (Mai 2012) . - pp. 6044–6051 Titre : Magnetic CoFe2O4 – graphene hybrids : Facile synthesis, characterization, and catalytic properties Type de document : texte imprimé Auteurs : Yunjin Yao, Auteur ; Zeheng Yang, Auteur ; Dawei Zhang, Auteur Année de publication : 2012 Article en page(s) : pp. 6044–6051 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Magnetic Graphene oxide Résumé : This paper reports the synthesis of magnetic CoFe2O4–reduced graphene oxide (rGO) hybrids and the catalytic performance in heterogeneous activation of peroxymonosulfate (PMS) for decomposition of phenol. The surface morphologies and structures of the CoFe2O4–rGO hybrids were investigated by field emission scanning electron microscopy (SEM), energy-dispersive X-ray spectrometer (EDS), transmission electron microscopies(TEM), powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), nitrogen adsorption–desorption isotherm, and thermogravimetric analysis (TGA). Through an in situ chemical deposition and reduction, CoFe2O4–rGO hybrids with CoFe2O4 nanoparticles of 23.8 nm were produced. Catalytic testing showed CoFe2O4–rGO hybrids exhibited much better catalytic activity than CoFe2O4, which suggests rGO plays an important role in CoFe2O4–rGO hybrids for the decomposition of phenol. Moreover, the hybrid catalyst presents good magnetism and could be separated from solution by a magnet. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300271p [article] Magnetic CoFe2O4 – graphene hybrids : Facile synthesis, characterization, and catalytic properties [texte imprimé] / Yunjin Yao, Auteur ; Zeheng Yang, Auteur ; Dawei Zhang, Auteur . - 2012 . - pp. 6044–6051. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 17 (Mai 2012) . - pp. 6044–6051 Mots-clés : Magnetic Graphene oxide Résumé : This paper reports the synthesis of magnetic CoFe2O4–reduced graphene oxide (rGO) hybrids and the catalytic performance in heterogeneous activation of peroxymonosulfate (PMS) for decomposition of phenol. The surface morphologies and structures of the CoFe2O4–rGO hybrids were investigated by field emission scanning electron microscopy (SEM), energy-dispersive X-ray spectrometer (EDS), transmission electron microscopies(TEM), powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), nitrogen adsorption–desorption isotherm, and thermogravimetric analysis (TGA). Through an in situ chemical deposition and reduction, CoFe2O4–rGO hybrids with CoFe2O4 nanoparticles of 23.8 nm were produced. Catalytic testing showed CoFe2O4–rGO hybrids exhibited much better catalytic activity than CoFe2O4, which suggests rGO plays an important role in CoFe2O4–rGO hybrids for the decomposition of phenol. Moreover, the hybrid catalyst presents good magnetism and could be separated from solution by a magnet. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300271p

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