Vaiano V., Sannino D., Ciambelli P., 2014, Sustainable Gas Phase Selective Photocatalytic Oxidation of Cyclohexane on MoOx/TiO2/SiO2 catalysts, Chemical Engineering Transactions, 39, 565-570.
Gas phase selective photocatalytic oxidation of cyclohexane was studied in a two dimensional fluidized bed reactor on MoOx catalysts supported on grafted TiO2/SiO2. The influence of sulphate and Mo loading was evaluated. Photocatalytic tests showed that benzene was the main reaction product formed during irradiation with together CO2 and cyclohexene as by products. Depending on the TiO2, Mo and sulphate loading, an enhancement of the activity and catalysts stability occurred during irradiation. MoOx/TiO2/SiO2 samples showed a higher photocatalytic activity with respect to MoOx/TiO2-Al2O3. This behaviour was attributed to the better transmission of UV light through SiO2 than through Al2O3 and the lower absorption of the radiation.
