Acidification of an isopropanol solution containing mixtures of [Ti(OPri)(4)] and [W(OEt)(5)] produced solutions from which various TiO2, WO3 and TiO2/WO3 thin films could be obtained by dip coating and annealing. The films were analysed by X-ray diffraction, SEM/EDAX, Raman, electronic spectra, contact angle and photoactivity with respect to destruction of an over layer of stearic acid. The TiO2/WO3 films were shown to be mixtures of two phases TiO2 and WO3 rather than a solid solution TixWyO2. The 2% tungsten oxide doped titania films were shown to be the most effective photocatalysts. All of the TiO2 and TiO2/WO3 films showed light induced superhydrophillicity.
- electronic spectra
- stearic acid
Rampaul, A., Parkin, I. P., O'Neill, S. A., DeSouza, J., Mills, A., & Elliott, N. (2003). Titania and tungsten doped titania thin films on glass: active photocatalysts. Polyhedron, 22(1), 35-44. https://doi.org/10.1016/S0277-5387(02)01333-5