Hexagonal carbon nitride, often abbreviated as h-BN, is a two-dimensional material composed of carbon and nitrogen atoms arranged in a hexagonal lattice. It shares structural similarities with graphene, but its unique properties make it valuable in various applications, including electronics and catalysis. This material exhibits excellent thermal stability and electrical insulation, making it suitable for use in high-temperature environments. Additionally, hexagonal carbon nitride has potential in photocatalysis, where it can help drive chemical reactions using light, contributing to advancements in energy conversion and environmental remediation technologies.