Progress of CO2 fixation using cycloaddition reaction

Carbon dioxide (CO2), a significant greenhouse gas component, has been impacting the global climate. Photocatalytic CO2 reduction is a cost-effective and eco-friendly approach. Photocatalytic CO2 can combine with epoxides to produce cyclic carbonates, garnering considerable attention due to its full atom utilization and alignment with green chemistry principles. This review assesses the current state of research on photocatalytic CO2 cycloaddition with epoxides, examining factors influencing efficiency through pathways and enhancement methods like light absorption, separation and transfer of photogenerated charges, active site reaction, coupling reaction, and reaction device.