Construction and performance of g-C3N4-based core-shell heterojunction photocatalytic materials
Photocatalytic technique is an effective method to solve the problems of energy conversion and environmental remediation,and graphitic carbon nitride(g-C3N4)has been considered as a promising photocatalytic material.However,the high carrier recombination rate severely limits the photocatalytic activity of g-C3N4.Constructing core-shell structure to form heterojunction with tight connection interfaces and large contact area has proved to be an excellent strategy to improve the carrier separation efficiency.Therefore,the research on core-shell structured g-C3N4-based heterojunction photocatalysis becomes a hot spot.In this review,the main functions of core-shell structure and the applications of core-shell structured materials are introduced.The performance and advantages of g-C3N4-based core-shell heterojunction photocatalytic materials are elaborated.The preparation methods of core-shell structured g-C3N4-based heterojunctions and the growth mechanism of g-C3N4 in the synthetic process are emphatically discussed.Finally,challenges and perspectives for the future research and development of g-C3N4-based core-shell heterojunctions are analyzed.This review will provide guidance for the development of new and efficient g-C3N4-based core-shell structured photocatalytic materials.
万方数据
维普
