铋-钒复合氧化物可见光催化剂的研制与应用

Synthesis and Application of Compoundable oxide Photocatalyst of Bismnth and Vanadium

报道了Bi—V复合氧化物在可见光下分解亚甲基蓝溶液的实验结果。用凝胶-溶胶法制备Bi—V复合氧化物，找到此可见光催化剂制备的最佳条件及它降解亚甲基蓝溶液的最优化条件。发现它在可见光照射下有良好的催化活性，2h后的降解率达98％。同时试验了它的重复使用率，发现灼烧2h后Bi—V复合氧化物能够稳定存在，粒度在0．2～5μm之间；重复使用3次后，光催化效率几乎没有变化。

Results of the Compoundable oxide photocatalysts of bismnth and vanadium in visible light photocatalytic degration for the methylene bule are reported. The photocatalysts were prepared by sol-gel method. It showed strong photodegradation activity for the methylene blue under different conditions. In order to find out the optimization condition of the phtotcatalytic degration methylene blue, the rate of the photocatalysts was studied, finded that it was stable in the persent photocatalytic reactions, it can use one more times, the grain of the photocatalyst is a little small.