A kinetic model for distinguishing between direct and indirect interfacial hole transfer in the heterogeneous photoxidation of dissolved organics on TiO2 nanoparticle suspension

A kinetic model is presented for assessing the photocatalytic degradation of water-dissolved pollutant species at suspension of TiO2 nanoparticles. The model is based on the sequence of reactions occurring at the semiconductor/electrolyte interface under illumination, and emphasizes the degree of electronic interaction of dissolved pollutant species with the semiconductor surface.