PHOTOCATALYST AND A METHOD OF PURIFYING GASEOUS EFFLUENTS

摘要

The invention relates to a photocatalyst and a method of purifying gaseous effluents. The photocatalyst, which is based on a composite WO3 - SiC/TiO2 semiconductor, is subjected to irradiation having a wavelength that is at least in part less than 400 nm, said irradiation involving the photocatalytic oxidation of volatile organic compounds and resulting in the total mineralisation thereof into CO2 and H2O. The method for the photocatalytic purification of industrial, agricultural or domestic gaseous effluents can be carried out at ambient pressure and temperature with a high and stable conversion rate.