中文摘要：

以 TiO2为载体,采用浸渍法制备 V-M/TiO2（M=Cu、Cr、Ce、Mn、Mo）双金属氧化物催化剂,考察其催化燃烧氯苯、二氯甲烷等含氯有机废气（CVOCs）的性能,并通过 XRD、BET、H2-TPR 和 NH3-TPD 对催化剂进行了表征.结果表明,V-Mo/TiO2催化剂比表面积最大,催化剂表面活性组分的高分散性和良好的酸性分布使得V-Mo/TiO2能够在260℃将氯苯完全转化为CO2和HCl.而V-Mn/TiO2则具有丰富的活性氧,可显著提高催化剂深度氧化二氯甲烷的能力,在380℃时二氯甲烷即可完全燃烧,并且反应对CO2有着很高的选择性.

英文摘要：

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.