title: [Preparation and optical properties of tantalum tungsten bronze].
abstract: Tantalum tungsten bronze(TaxWO3)nanowires were successfully synthesized via hydrothermal method using TaCl5 and Na2WO4 . 2H20 as raw materials. The morphology, crystal structure and optical properties of synthesized products were characterized by means of XRD, TEM, SEM, UV-Vis and Raman technologies. The XRD results showed that TaxWO3 nanowire exhibited hexagonal structure. By increasing the doping content, the cell parameter was kept increasing gradually till Ta/W= 0. 04, then it remained almost constant. The UV-Vis diffraction spectrum analysis showed that the absorption peaks redshifted, the band gap energy decreased with increasing the doping content. The Raman peaks moved with a downshift, and the peak gradually became broader, which further proved the influence of the tantalum doping for tungsten oxide. The reactions of decomposing liquid rhodamine B solution showed that the nanosized TaxWO3 had a high photo-catalytic activity.
authors.forename: Wan-jun
authors.initials: WJ
authors.lastname: Mu
authors.forename: Xiang
authors.initials: X
authors.lastname: Xie
authors.forename: Xing-liang
authors.initials: XL
authors.lastname: Li
authors.forename: Rui
authors.initials: R
authors.lastname: Zhang
authors.forename: Kai
authors.initials: K
authors.lastname: Lü
authors.forename: Hong-yuan
authors.initials: HY
authors.lastname: Wei