| Titre : | Visible-light-induced photocatalyst based on nickel titanate nanoparticles (2008) |
| Auteurs : | Xin Shu, Auteur ; Jing He, Auteur ; Dong Chen, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 47 n°14, Juillet 2008) |
| Article en page(s) : | p. 4750–4753 |
| Note générale : | Bibliogr. p. 4752-4753 |
| Langues : | Anglais |
| Tags : | 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 |
