In this paper, CeVO4/FeVO4 nanocomposites were prepared by direct feeding microwave synthesis method with nine water iron nitrate (Fe(NO3)3?9H2O), cerium nitrate hexahydrate (Ce(NO3)3?6H2O) and ammonium metavanadate (NH4VO3) as raw material and Sodium Dodecyl Sulfate (SDS) as surfactant. Then X-Ray Diffractometer (XRD) and Scanning Electron Microscopy (SEM) were used to observe the CeVO4/FeVO4 nanocomposites. SEM image showed that the as-prepared CeVO4/ FeVO4 nanocomposites calcined at 773 Kis formated of small particles aggregation irregular sheet structure. We studied the photocatalytic activity of the as-prepared samples by using degradation of methyl orange in visible light. The results showed that the photocatalytic activity of CeVO4/FeVO4 nanocomposites were very well. It found that when the catalyst calcined at 773 K was 0.10 g, and 0.5 mL hydrogen peroxide joined as well as, pH was 2.0, the degradation ratio of catalyst for methylene orange of 100 mL 5 mg/L reached 98.63% in 40 min.
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