Colloidal TiO2particles as oxygen carriers in photochemical water cleavage systems

Abstract
By using the redox indicators o-dianisidine and o-toluidine as regents for quantitative analysis, it is shown that in colloidal TiO2–Pt dispersions surface-bound peroxo titanium complexes are formed during photolytic water cleavage in closed systems and as aresult of oxygen photo-uptake.