Photocatalyst useful e.g. in removing nitrogen monoxide with low nitrogen dioxide production rate comprises metal oxide particles carrying fine metal particles and is produced by mixing dispersions of the particles

摘要

Production of photocatalysts involves (A) mixing a dispersion of fine metal particles with a dispersion of metal oxide particles; and (B) drying the mixture to give a photocatalyst carrying fine metal particles. An independent claim is also included for a photocatalyst comprising zinc oxide particles carrying fine silver particles.