Recent advances in improving the performance of graphite-phase carbon nitride based photocatalysts for hydrogen evolution
ZOU Jing1， LIAO Guodong1， WANG Haitao1， JIANG Jizhou1,2
(1.School of Chemistry and Environmental Engineering， School of Environmental Ecology and Biological Engineering， Key Laboratory of Green Chemical Engineering Process of Ministry of Education， Wuhan Institute of Technology， Wuhan 430205， China； 2.Key Laboratory of Rare Mineral， Ministry of Natural Resources， Geological Experimental Testing Center of Hubei Province， Wuhan 430034， China)
Abstract：Graphite phase carbon nitride (g-C3N4) has attracted extensive attentions in the field of photocatalytic hydrogen evolution， since the advantages of narrow band gap， high stability， low cost and pollution. However， the pure g-C3N4 has the defects of small specific surface area， low visible light utilization efficiency， high photo-generated carrier recombination rate， which results in unsatisfactory performance of photocatalytic hydrogen evolution. Therefore， the current research hotspots in the field of photocatalysis is to significantly improve the photocatalytic hydrogen evolution activity of g-C3N4. In this article， the modification and optimization strategies of g-C3N4 are systematically reviewed， including morphology adjustment， heteroatom doping and heterostructure construction. Meanwhile， the existing problems of g-C3N4 based photocatalysis are also analyzed. Additionally， the future research focus and direction of g-C3N4-based hydrogen evolution photocatalysts are forecasted.
2021, Vol. 55 
