氮化碳光催化分解水的研究进展

Progresses of carbon nitride polymers for water splitting

近年来,以氮化碳为代表的不含金属组分光催化材料逐渐成为国际光催化研究的热点之一.本文从氮化碳材料光催化分解水的构-效关系出发,围绕共聚合氮化碳、结晶相氮化碳和氮化碳光电催化等3个方面,综述提升氮化碳光吸收能力、增强电荷迁移与分离效率等性质的手段,并探讨将氮化碳材料与光电催化体系耦合的方法.最终,对氮化碳材料在光催化分解水的研究现状与发展趋势进行分析与总结.

In recent years,metal-free photocatalysts,represented by polymeric carbon nitrides(PCNs),had received increasing attention worldwide.In this review,we focused on the relationship between the PCN structure and its performance for water splitting reaction.The progresses of PCN for water splitting were discussed including the fields of copolymerization,crystallinity,and photoelectrochemistry(PEC).The strategies for optimizations of the light absorption,and photoexcitation charge separation and transfer were reviewed.Meanwhile,the method to coupling PCN into PEC system was presented.Conclusion and outlook for PCN photocatalysis were provided.