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中文摘要：
用溶胶-凝胶法制备钒氮共掺杂TiO2光催化剂，以亚甲基蓝的降解率为评价指标，考察钒氮共掺杂TiO2光催化降解亚甲基蓝的影响因素．结果表明，钒氮共掺杂能显著提高TiO2的光催化活性；在本实验条件下，钒氮添加量（与Ti的摩尔比）分别为0．1％、10％的TiO2于600℃焙烧、投入量为3g／L、溶液pH值为4～7、超声振荡30min、光照催化氧化处理4h的条件对处理低浓度亚甲基蓝溶液效果最好．
英文摘要：
The V and N co-doping TiO2 composite photocatalyst were prepared by sol-gel method. The photocatalytic influence factors were investigated by the photocatalytic degradation of methylene blue（MB）. The results showed that V and N co-doping improved the photocatalytic activity of TiO2 ;in this experiment condition, TiO2 in 600 ℃ baking, inputs for 3 g/L, control solution pH value for 4-7, ultrasonic oscillations 30 min, illumination catalytic oxidation treatment 4 hours on the treatment of conditions of low concentration methylene blue effect is the best solution.
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