Papers by Keyword: Vanadium Doping

Abstract: V-doped TiO₂ (V-TiO₂) was synthesised using solvothermal technique and immobilised onto fibreglass cloth (FGC). The XRD pattern of doped sample showed slight positive shift to higher angle indicating that the V ions were well substituted into the Ti lattices. The band-gap energy of V-TiO₂ was lower than that of P25, pure TiO₂, (3.28 eV for P25 and 2.90 eV for V-TiO₂) demonstrating it could be excited by visible light. The XANES spectra of the Ti K-edge transition indicated most Ti ions were in the tetravalent state with octahedral coordination. The A₂ species on the surfaces of V-TiO₂ were found to be the main active sites during photocatalytic degradation of BTEX under visible light irradiation.

Abstract: An unusual contrast in SEM secondary electron imaging for PVT grown silicon carbide with vanadium doped was observed. An explanation in point of the compensation of different type of dopant was drawn. And the relationship between the doping properties of vanadium and orientation of SiC domains was investigated.