Influence of Irradiance, Flow Rate, Reactor Geometry, and Photopromoter Concentration in Mineralization Kinetics of Methane in Air and in Aqueous Solutions by Photocatalytic Membranes Immobilizing Titanium Dioxide

Figure 6

Quantum yields 𝛷_∞ (mol of methane/Einstein) for photomineralization of methane, as a function of initial concentration 𝛷_∞, expressed as mg/L of carbon, and of absorbed power per unit length of lamp (and membrane), expressed as W𝛷_∞cm⁻¹. Quantum yields are expressed as means of values, from experiments in gaseous phase and in aqueous solutions. Photocatalytic membranes used in these experiments did not contain any photopromoting agent.