Visible-light-induced photocatalyst based on nickel titanate nanoparticles / Xin Shu in Industrial & engineering chemistry research, Vol. 47 n°14 (Juillet 2008)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 47 n°14 (Juillet 2008) . - p. 4750–4753 Titre : Visible-light-induced photocatalyst based on nickel titanate nanoparticles Type de document : texte imprimé Auteurs : Xin Shu, Auteur ; Jing He, Auteur ; Dong Chen, Auteur Année de publication : 2008 Article en page(s) : p. 4750–4753 Note générale : Bibliogr. p. 4752-4753 Langues : Anglais (eng) Mots-clés : Crystalline structure  TiO2  NiTiO3  Photocatalytic activities Résumé : TiO2-coupled NiTiO3 nanoparticles have been prepared by coprecipitation in aqueous medium followed by sintering. Powder X-ray diffraction (PXRD) and high-resolution transmission electron microscopy (HRTEM) were used to characterize the crystalline structure. The crystalline sizes of both TiO2 and NiTiO3 were estimated to be in the range of 40−50 nm. A noticeable optical absorbance in the visible range was observed by UV−vis diffuse reflection spectroscopy (DRS). The photocatalytic activities were evaluated in the degradation of methylene blue in aqueous solution. The results show that the TiO2-coupled NiTiO3 nanoparticles exhibit good photocatalytic activities under visible light irradiation. The NiTiO3 phase was found to be indispensable for photoabsorption and photocatalysis. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie071619d [article] Visible-light-induced photocatalyst based on nickel titanate nanoparticles [texte imprimé] / Xin Shu, Auteur ; Jing He, Auteur ; Dong Chen, Auteur . - 2008 . - p. 4750–4753. Bibliogr. p. 4752-4753 Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 n°14 (Juillet 2008) . - p. 4750–4753 Mots-clés : Crystalline structure  TiO2  NiTiO3  Photocatalytic activities Résumé : TiO2-coupled NiTiO3 nanoparticles have been prepared by coprecipitation in aqueous medium followed by sintering. Powder X-ray diffraction (PXRD) and high-resolution transmission electron microscopy (HRTEM) were used to characterize the crystalline structure. The crystalline sizes of both TiO2 and NiTiO3 were estimated to be in the range of 40−50 nm. A noticeable optical absorbance in the visible range was observed by UV−vis diffuse reflection spectroscopy (DRS). The photocatalytic activities were evaluated in the degradation of methylene blue in aqueous solution. The results show that the TiO2-coupled NiTiO3 nanoparticles exhibit good photocatalytic activities under visible light irradiation. The NiTiO3 phase was found to be indispensable for photoabsorption and photocatalysis. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie071619d

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