A review of synergistic effect of photocatalysis and ozonation on wastewater treatment

It can be concluded that photocatalytic oxidation in the presence of ozone is a process that is qualitatively and quantitatively different from the well-known photocatalytic oxidation with oxygen and the ozonation without photocatalyst. The reason for the higher oxidation rate is probably a photocatalytic induced decay of ozone, initiated by the combination of titanium dioxide and UV-A radiation.