Y 2O 3/TiO 2 catalysts were prepared by impregnation method and characterized by means of UV,SEM,and BET.

• 采用浸渍法制备了Y2 O3/TiO2 复合氧化物催化剂 ；并用紫外可见光谱、SEM、BET等手段对其进行了表征 .