Aerosol assisted chemical vapour deposition of tungsten oxide films from polyoxotungstate precursors: active photocatalysts

Aerosol assisted chemical vapour deposition of polyoxotungstate precursors [n-Bu(4)N](2)[W(6)O(19)] and [n-Bu(4)N](4)H(3)[PW(11)O(39)] produces films of WO(3-x) and WO(3) on glass sunbstrates; the WO(3) films show significant photocatalytic decomposition of a test organic pollutant - stearic acid - when irradiated with either 254 or 365 nm radiation.