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Using collagen fiber as a template to synthesize TiO2 and Fex/TiO2 nanofibers and their catalytic behaviors on the visible light-assisted degradation of orange II / Li Cai in Industrial & engineering chemistry research, Vol. 49 N° 7 (Avril 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 7 (Avril 2010) . - pp. 3194–3199 Titre : Using collagen fiber as a template to synthesize TiO2 and Fex/TiO2 nanofibers and their catalytic behaviors on the visible light-assisted degradation of orange II Type de document : texte imprimé Auteurs : Li Cai, Auteur ; Xuepin Liao, Auteur ; Bi Shi, Auteur Année de publication : 2010 Article en page(s) : pp. 3194–3199 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Collagen  Fiber  Template  Nanofibers  Catalytic  Behaviors  Assisted  Degradation  Orange  II  Visible  Light  TiO2  Fex/TiO2 Résumé : TiO2 and Fex/TiO2 nanofibers were prepared using collagen fiber as the template and Ti(SO4)2 as the titanium source, on which titanium (Ti4+) or titanium (Ti4+)/iron (Fe3+) were loaded, respectively, and then heat-treated. The structure and physical properties of these nanofibers were characterized by means of scanning electron microscopy, field emission scanning electron microscopy, X-ray diffraction, specific surface analyzer, and UV−vis absorption spectra. It was found that iron ions may substitute for some lattice titanium atoms and form a Ti−O−Fe structure. The TiO2 and Fex/TiO2 nanofibers were all anatase phase when sintered at 600 °C for 4 h. The N2 adsorption−desorption isotherms of TiO2 and Fex/TiO2 nanofibers were the typical type IV, which associated with the characteristics of mesoporous materials. Compared with Degussa P25, the absorbance wavelength of obtained TiO2 and Fex/TiO2 nanofibers was red shift and the band gap energy was decreased. The obtained TiO2 and Fex/TiO2 nanofibers exhibited excellent visible light catalytic activity for degradation of orange II. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901520t [article] Using collagen fiber as a template to synthesize TiO2 and Fex/TiO2 nanofibers and their catalytic behaviors on the visible light-assisted degradation of orange II [texte imprimé] / Li Cai, Auteur ; Xuepin Liao, Auteur ; Bi Shi, Auteur . - 2010 . - pp. 3194–3199. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 7 (Avril 2010) . - pp. 3194–3199 Mots-clés : Collagen  Fiber  Template  Nanofibers  Catalytic  Behaviors  Assisted  Degradation  Orange  II  Visible  Light  TiO2  Fex/TiO2 Résumé : TiO2 and Fex/TiO2 nanofibers were prepared using collagen fiber as the template and Ti(SO4)2 as the titanium source, on which titanium (Ti4+) or titanium (Ti4+)/iron (Fe3+) were loaded, respectively, and then heat-treated. The structure and physical properties of these nanofibers were characterized by means of scanning electron microscopy, field emission scanning electron microscopy, X-ray diffraction, specific surface analyzer, and UV−vis absorption spectra. It was found that iron ions may substitute for some lattice titanium atoms and form a Ti−O−Fe structure. The TiO2 and Fex/TiO2 nanofibers were all anatase phase when sintered at 600 °C for 4 h. The N2 adsorption−desorption isotherms of TiO2 and Fex/TiO2 nanofibers were the typical type IV, which associated with the characteristics of mesoporous materials. Compared with Degussa P25, the absorbance wavelength of obtained TiO2 and Fex/TiO2 nanofibers was red shift and the band gap energy was decreased. The obtained TiO2 and Fex/TiO2 nanofibers exhibited excellent visible light catalytic activity for degradation of orange II. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901520t