Hydrothermal method was chosen to synthesize Bi2O3/Bi2WO6 photocatalyst.The characterization analysis was carried out by XRD,UV-Vis DRS and infrared spectroscopy.The results showed that the Bi2O3/Bi2WO6 was an oblique crystal,the absorption wavelength was 464nm,and the band width was 2.35eV.The photocatalytic activity experiment showed that when the molar ratio of Bi2O3 to Bi2WO6 was 0.1∶1,the preparation temperature was 160℃ and the preparation time was 24h,the photocatalytic activity was the best.Under xenon lamp of 500W,0.15g catalyst was used to degrade rhodamine B solution with a volume of 50mL and concentration of 10mg/L Rhodamine B solution,After 30min of illumination,the degradation effect reached more than 97%.After four times of use,the degradation efficiency remained above 80%.
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