Abstract
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.
Original language | English |
---|---|
Pages (from-to) | 35-44 |
Number of pages | 9 |
Journal | Polyhedron |
Volume | 22 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jan 2003 |
Keywords
- titania
- photocatalyst
- electronic spectra
- stearic acid