Construction C/g-C3N4 with synergistic performance toward high photocatalytic performance

Abstract

Aromatic carbon (C) doped graphitic carbon nitride (g-C3N4) is one of the effective strategies to improve the photocatalytic performance of g-C3N4. The present work developed a feasible method to construct C/g-C3N4 through carbonising the mixture of g-C3N4 and phenol-formaldehyde (PF) obtained in situ polymerisation. This synthesis method not only improves the interaction between PF and g-C3N4, but also promotes the preparation of aromatic carbon-doped g-C3N4 in the subsequent calcinations process. The resulted C/g-C3N4-600 catalysts show developed optoelectronic properties, superior photocatalytic activity and higher surface area (1336 cm2 g-1) due to the extended π-conjugation system and distinctive morphology.