The promotional effect of MoO3 doped V2O5/TiO2 for chlorobenzene oxidation

• V1Mo9 shows higher activity on CB oxidation than a V1W9 catalyst.
• Higher reducibility and more surface active oxygen are found on V1Mo9.
• Under real flow gas, minor N2O was found during the SCR plus CB oxidation process.

A series of V2O5–MoO3/TiO2 catalysts prepared by an impregnation method was investigated on their catalytic performance of chlorobenzene oxidation. This study demonstrated that MoO3 is a dopant, which can improve catalyst redox properties and enhance chlorobenzene oxidation catalytic activity at low temperature. Compared to V2O5–TiO2 and V2O5–WO3/TiO2 catalysts, V2O5–MoO3/TiO2 catalysts showed outstanding activity on chlorobenzene oxidation, which is due to the promoting influence of MoO3. For excellent catalytic performance and good N2 selectivity with water, the V2O5–MoO3/TiO2 catalysts may have promising commercial potential for the synergetic control of dioxins and NOx emitted from stationary sources.

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