Thermal Exfoliation and Phosphorus Doping in Graphitic Carbon Nitride for Efficient Photocatalytic Hydrogen Production.

ABSTRACT: Photocatalytic H₂ evolution has been regarded as a promising technology to alleviate the energy crisis. Designing graphitic carbon nitride materials with a large surface area, short diffusion paths for electrons, and more exposed reactive sites are beneficial for hydrogen evolution. In this study, a facile method was proposed to dope P into a graphitic carbon nitride framework by calcining melamine with 2-aminoethylphosphonic acid. Meanwhile, PCN nanosheets (PCNSs) were obtained through a thermal exfoliation strategy. Under visible light, the PCNS sample displayed a hydrogen evolution rate of 700 μmol·g^-1·h^-1, which was 43.8-fold higher than that of pure g-C₃N₄. In addition, the PCNS photocatalyst also displayed good photostability for

SUBMITTER: Chen L 

PROVIDER: S-EPMC11314274 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature