Graphitic carbon nitride (g–C3N4)–based metal-free photocatalysts for water splitting: A review

By Amit Mishra, Akansha Mehta, S. Basu, N. Shetti, K. R. Reddy, T. Aminabhavi. Carbon, 2019

684 citations recorded by the source corpus.

Abstract A variety of g–C3N4–based metal-free photocatalysts for H2 generation including structurally manipulated g-C3N4, g–C3N4–doped with non-metallic elements and molecules, hetero-junctions of g-C3N4 with carbonaceous materials, polymers as well as SiC and g–C3N4–based iso-type or homo-junctions are considered. Innumerable strategies have been attempted to enhance H2 evolution rate of g–C3N4–derived metal-free photocatalysts compared to pure g-C3N4. Furthermore, challenges in this area are yet to be tackled to resolve the issues low efficiency, low stability and dependence on noble metal co-catalysts for increasing the product yield and reduction in redox capability by narrowing the band gap. This review attempts to cover the latest developments, especially in the area of graphitic carbon nitride (g–C3N4)–based metal-free photocatalysts for H2 generation.

Subfields: Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/ae757d429d3515f434b8b754e2dedf1973b4d9c4