Inactivation of microorganisms passes
through four stages:
Trapping microorganisms on the surface of the photocatalyst
Destruction of the cell membrane by ОН – radicals
Leakage of intracellular fluid and death of microorganisms
Complete acidification of the cell substance to CO2 and H2O
Oxidation and destruction
of absorbed pollutants
Adsorption of contaminants
on surfaces
Platinum and polladium topped catalyst
Desorption end products
H20, CO2