Photocatalytic oxidation is the process of destroying organic substances by oxidation. The technology is well suited to remove low concentrations pollutants (ppb level) from water, air and surfaces.
The technology uses a photocatalytic material that is activated by UV radiation with a wavelength shorter than 380nm to create powerful oxidants (hydroxyl radicals - OH*) at the surface. The substances that need to be removed must come close to the photocatalytic surface. The amount of UV energy to activate the process depends on the photocatalytic material used and the way it is applied on the surface of the carrier.