Abstract：A series of V-M /TiO2 (M= Cu、Cr、Ce、Mn、Mo)catalysts were prepared by impregnation method. The catalytic activity of chlorinated volatile organic compounds(CVOCs), such as chlorobenzene(CB)、dichloromethane(DCM) over V-M /TiO2were investigated. The physical-chemical properties of the catalysts were also investigated by XRD、BET、H2-TPR and NH3-TPD. It was found that the V-Mo/TiO2 catalyst could completely combustion oxidation of chlorobenzene into CO2 and HCl at 260℃, which was related to the biggest BET surface and highly dispersed of surface acidity; Moreover, the V-Mn/TiO2 catalyst showed a high activity and good selectivity for catalytic combustion of dichloromethane (DCM), with a 100% conversion obtained at 380℃. This performance was attributed to a large amount of active surface oxygen, which could enhance the ability of deep oxidation of dichloromethane.
