Abstract: Au/rGO/BiVO4, a ternary composite, is successfully synthesized by supporting the reduced graphene oxide (rGO) and gold on BiVO4 in succession.The composite is characterized by various techniques to study its structure.Results show that BiVO4 shows a decagonal-shaped monoclinic system, rGO is loaded on the outer of BiVO4.Gold particles decorate onto rGO to form a heterojunction.The photodegradation of as-synthesized Au/rGO/BiVO4 to methylene blue and tetracycline is studied.The existence of rGO promotes electron transfer, while gold facilitates the absorption of visible light to improve the photocatalytic activity.Therefore, Au/rGO/BiVO4 shows a greater photodegradation performance than both rGO/BiVO4 and BiVO4 under the irradiation of visible light.
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