采用浸渍法制备出B、N和Ce共掺杂TiO2光催化剂,并用SEM等表征了其结构特征。以酸性大红染料溶液的光催化降解为探针反应,考察了制备条件对共掺杂TiO2催化剂活性的影响。结果表明,在600℃,当B、N和Ce的原子比为2:2:0.1,焙烧3 h时,光催化剂活性最大,大红染料的降解率达到90%。 B, N and Ce co-doped TiO2 photocatalysts were prepared by impregnation method and their structural characteristics were characterized by SEM and so on. The photocatalytic degradation of acid red dye solution was used as the probe reaction, and the effect of preparation conditions on the activity of co-doped TiO2 catalyst was investigated. The results showed that the photocatalytic activity was the highest at 600 ℃ when the atomic ratio of B, N and Ce was 2: 2: 0.1 and calcined for 3 h, and the degradation rate of red dye reached 90%.