setup is a consequence of many co-current and/or counter-current
functions. For instance, increasing temperature should lead to
higher rates for chemical reactions involved in heterogeneous oxidations and moreover, should decrease the thickness of the diffusion layer around the photocatalyst providing better mass
transfer conditions. On the other hand, increased temperature
reduces the half-life and solubility of ozone in an aqueous solution
and any shortage in the concentration of ozone will negatively
affect the output of photocatalytic ozonation. Furthermore, according to the Langmuir adsorption isotherm, as the temperature
increases at a constant pressure (or concentration), the adsorption
rate of pollutants on the photocatalyst surface is reduced and the
quantity adsorbed increases more slowly, leading to a decrease
in the degradation of adsorbed contaminants.