通过溶胶凝胶法制备了具有可将光响应能力的铈、氮共掺杂二氧化钛光催化剂。用XRD、SEM、UV-Vis对催化剂进行了表征,以活性艳红为降解目标,考察了催化剂在500 W氙灯全波段照射下和可见光下的光催化活性。光催化降解活性艳红溶液实验结果表明,当煅烧温度为400℃,铈掺杂量为0.6%(摩尔比),氮掺杂量为6%(摩尔比)时光催化效率最高,活性艳红溶液的降解率可达97.88%。 Cerium and nitrogen co-doped titanium dioxide photocatalysts with photoresponsive capability were prepared by sol-gel method. The catalysts were characterized by XRD, SEM and UV-Vis. Reactive brilliant red was used as the degradation target. The photocatalytic activity of the catalyst under 500 W xenon lamp irradiation and visible light irradiation was investigated. The results of photocatalytic degradation of reactive brilliant red solution show that the photocatalytic efficiency is the highest when the calcination temperature is 400 ℃, the doping amount of cerium is 0.6% and the doping amount of nitrogen is 6% The degradation rate of up to 97.88%.