Advances in Design and Development of g-C3N4 Based Photocatalysts for Sustainable Hydrogen Production

Graphitic carbon nitride (g-C3N4) has ignited researchers' interest as a promising and environmentally friendly photocatalyst for photocatalytic hydrogen (H2) evolution. g-C3N4 is designed and developed with appropriate precursors for its feasible and versatile applications in diverse fields, using innovative and low-cost synthesis techniques to enhance and modulate its physical and chemical properties. This chapter highlights the different chemical synthesis routes, as well as the effect of reaction conditions/parameters on morphologies, specific surface area, and photogenerated charge carrier kinetics. The basic mechanisms responsible for the photocatalytic performance of the g-C3N4-based photocatalysts to evolve H2 have are discussed. In addition, the different design strategies for enhancing the photocatalytic performance of g-C3N4-based photocatalysts for H2 evolution are briefly discussed. Finally, a summary of emerging advances in the fabrication of g-C3N4-basedphotocatalysts to evolve H2 gas is provided.