METAL MATERIAL CONTAINING PHOTOCATALYST COATED WITH SILICON OXIDE

摘要

PROBLEM TO BE SOLVED: To provide a metal material having an excellent photocatalytic activity as compared with products employing photocatalysts containing titanium oxide alone.

SOLUTION: The metal material contains a photocatalyst in the surface layer. The photocatalyst comprises a substrate having a photocatalyst and a silicon oxide film coating the substrate and essentially no pores and has a content of alkali metals of 1-1,000 ppm.

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