Preparation of organic compound/g-C3N4 composites and their applications in photocatalysis

Photocatalysis based on the organic polymer semiconductor, g-C3N4, is a green technology, but effective energy conversion is still limited by the small light absorption range and high photogenerated carrier complexation rate of g-C3N4 photocatalysts. The introduction of organic molecules into the g-C3N4 backbone has become a design hotspot for optimising g-C3N4 performance. In this review, recent developments in the morphology of g-C3N4-based composites as photocatalysts, strategies for the preparation of organic compound/g-C3N4 composites and the applications of organic compound/g-C3N4 composites in photocatalysis are introduced. The perspectives on future directions of organic compound/g-C3N4 composites are discussed.