Kinetic study of photocatalytic reduction of CO2 over TiO2

Abstract

Time dependences of photocatalytic reduction of CO2 with water in a UV/TiO2 process were studied. The main products of the process were found to be methanol and methane. The Langmuir–Hinshelwood type kinetic equation was developed for modelling of CO2 photoreduction. A simple kinetic model incorporating the coupled effect of the adsorptive photocatalytic reduction and oxidation has been proposed.