Super-hydrophilic property of vanadium doped TiO2-SiO2 sol-gel derived thin film

► Vanadium-doped TiO2-SiO2 thin film deposited on glass substrate by a sol gel process ► Vanadium doping decreased the band gaps of the TiO2-SiO2 thin films. ► Vanadium doping improved the hydrophilicity of TiO2-SiO2 thin films.