中文摘要：

采用液相沉淀法制备新型Fe2O3/FeVO4光催化剂,研究不同Fe掺杂量和煅烧温度对Fe2O3/FeVO4光催化活性的影响。以甲基橙水溶液为光催化降解对象,考察掺杂后的样品在紫外和可见光作用下的光催化活性。结果表明:当Fe/V摩尔比为1.01:1,750℃煅烧4h制得的样品光催化活性最好,较纯FeVO4提高19%左右。实验确定了样品光催化甲基橙溶液的最佳投加量为4g/L,100min内对甲基橙溶液的脱色率达到82%。同时样品具有很好的重复利用性,循环使用5次后,样品的光催化效率仍能保持在80%左右。

英文摘要：

Fe2O3/FeVO4 photocatalysts were prepared by liquid phase precipitation.The photocatalytic activities of the Fe2O3/FeVO4 series catalysts with different Fe contents and calcined at different temperatures were investigated.The photocatalytic activity under visible and ultra-violet light was evaluated by photocatalytic degradation of methyl orange(MO) in the solution.The results show that the sample with a Fe to V mole ratio of 1.01:1 and calcined at 750 ℃ for 4 h has the best MO decolorization rate;the decolo...