| abstract |
A photocatalyst module comprising a substrate, fornexample, a metallic substrate, a layer of a photocatalystnsuch as titanium oxide, and a protective layer containingnlithium silicate provided between the substrate and the layernof a photocatalyst wherein the protective layer cannsufficiently withstand the heat in a step for forming thenlayer of a photocatalyst by a flame spray coating method andncan prevents oxidation and/or decomposition of the substratenis disclosed. |