摘要：To harness abundant and clean solar energy along with relieving energy and environmental issues,photocatalysis holds great ***-based photocatalysts are crucial to its successful ***,the photocatalytic efficiency based on a unitary semiconductor material falls short of expectations,mainly because of the rapid recombination of photogenerated electrons and *** originates in the extremely strong Columbic force between ***,it is impossible for a single photocatalyst to achieve wide light absorption and ample redox ability concurrently.