稀土元素掺杂二氧化钛催化剂光降解久效磷的研究

Study on Photocatalytic Degradation of Monocrotophos by Rare-earth Doping of TiO_2

采用浸渍法制备稀土掺杂二氧化钛(TiO_2)光催化剂,通过光催化降解农药久效磷的研究,发现掺杂稀土元素对TiO_2的光催化性能有明显的影响,特别是Ce^(4+)、La^(3+)等能明显提高TiO_2的光催化活性。并讨论了催化剂的制备、光降解条件诸因素对光降解久效磷的影响。

The influence of rare-earth doping of TiO_2 on its performance as a photocatalyst in monocrotophos degradation has been studied. It was shown that the photocatalytic properties of TiO2 were distinctly influenced by way of rare-earth doping, especially Ce4+ and La3+. Photocatalytic efficiencies were significantly higher than those of pure TiO2. The preparation of catalyzer and various factors which influenced on the photocatalytic degradation of monocrotophos were also discussed.