Bismuth vanadate/calcium ferrite composite photocatalyst, preparation method and applications thereof

The invention discloses a bismuth vanadate/calcium ferrite composite photocatalyst, a preparation method and applications thereof, wherein the photocatalyst comprises a m-BiVO4 matrix, CaFe2O4 is dispersed on the surface of the m-BiVO4 matrix, a mass ratio of the CaFe2O4 to the m-BiVO4 matrix is 5-20:95-80, and the monoclinic bismuth vanadate/calcium ferrite composite photocatalytic material is prepared by combining a low temperature self-propagating sol-gel method and a calcination method. According to the present invention, the photocatalytic performance of the prepared material is tested byusing simulated visible light; the prepared material can degrade the difficultly-degraded organic pollutant methylene orange so as to prove the excellent photocatalytic performance; the material belongs to the inorganic photocatalytic material, has high photocatalytic activity, and has good application prospect in environmental protection; and with the method, the morphology of monoclinic bismuthvanadate can be controlle