Photocatalytic C–C bond formation and cleavage reactions based on graphitic carbon nitride semiconductor materials

Abstract

Graphitic carbon nitride (g-C₃N₄) materials, owing to their unique electronic band structure, high chemical stability, and visible light response characteristics, have demonstrated significant potential in photocatalytic organic synthesis reactions in recent years. Through modification strategies such as structural tuning, elemental doping, and construction of heterojunctions, the light absorption capacity of g-C₃N₄ can be effectively enhanced, which promotes the efficient separation and transfer of photogenerated carriers, thereby improving the efficiency of photocatalytic reactions. This review aims to summarize the research progress on graphitic carbon nitride and carbon nitride materials modified by structural tuning, elemental doping, metal loading and heterojunctions construction as photocatalysts in C–C single bond formation and cleavage reactions.