Substrates comprising a photocatalytic TiO2 layer

摘要

Substrates comprising a photocatalytic layer containing TiO₂ are produced using TiO₂ particles which may optionally be doped with metallic or non-metallic elements or compounds. The photocatalytic layer exhibits a concentration gradient of the TiO₂ particles. An organically modified inorganic hybrid layer may be provided between the substrate and the photocatalytic layer.