Photocatalytic Fixation of Molecular Nitrogen in Systems Based on Graphite-Like Carbon Nitride: a Review

Cutting-edge research on graphite-like carbon nitride-based (g-C 3 N 4 ) photocatalytic systems for molecular nitrogen fixation is summarized. The properties of modified g-C 3 N 4 with grafted functional groups, structural defects (nitrogen or carbon vacancies), doped with nonmetals and metals, as well as g-C 3 N 4 -based binary and ternary composites with the participation of metals, their oxides, metalates, carbonates, hydrocarbons, and sulfides are discussed. The most promising areas of further research are outlined.