Investigation of Factors Influencing the Photocatalytic Degradation of Pharmaceuticals, a Novel Investigation on Supported Catalysts Using UV‐A LEDs as Light Source

Abstract Supported titanium dioxide‐based photocatalysts were investigated for the degradation of pharmaceuticals under irradiation with UV−A LEDs. Focus presented research was placed on kinetics different matrix influences and energy flux densities radiation. The chemical parameters, pH, orthophosphate, nitrogen concentration background organic investigated. results evaluated by time‐resolved measurement concentrations calculating plotting first‐order rate. showed clear differences in rates each compound, diclofenac being most easily degraded metoprolol resistant. When influence density examined, a linear relationship between rate square root confirmed. has strong compounds. Nitrogen orthophosphate slow down much less than matrix. Investigating pH influence, it could be shown that almost no is detected basic range. illustrated help radar diagram, which can show all dependencies at glance.