Novel photocatalysts including BiVO4,CoOx/BiVO4 and CeO2-CoOx/BiVO4 are synthesized through impregnation and calcination,and characterized by means of XRD,SEM,TEM,and XPS.Their catalytic performance for industrial wastewater under different conditions is analyzed.The results show that CeO2-CoOx/BiVO4 composite photocatalyst delivers the best degradation effect,over which the COD degradation efficiency of wastewater reaches 61％after 2 hours of treatment,indicating that doping loading can effectively improve catalytic performance.The optimal illumination time and dosage quality are 120 minutes and 1.0 g/L,respectively,and the photocatalyst has good stability.
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