The Modification of Graphite Carbon Nitride and Its Applications in Photocatalysis
Graphitic carbon nitride(g-C3N4)is one of the most promising photocatalytic materials due to its unique elec-tronic structure,visible light response,and excellent chemical stability.Whereas,the practical applications of pristine g-C3N4 in photocatalysis are still facing with huge challenges,such as poor specific surface area,low electronic conductivi-ty,insufficient visible light absorption,and fast recombination of photoinduced charge carriers.Lots of research works have been carried out to improve the photocatalytic performance and extend the applications of g-C3N4,and many exciting progres-ses have been gained.In this work,we summarized the research status of g-C3N4 in the field of photocatalysis.The modified strategies based on g-C3N4 were discussed,including molecular structure engineering,morphology control,co-catalyst depo-sition,heterostructure and homostructure construction.Then,the multifunctional applications of g-C3N4 based materials in photocatalysis including H2 evolution,pollutant removal,CO2 reduction and organic synthesis were reviewed,and the oppor-tunities and challenges for the development of high-performance g-C3N4 based materials were prospected.