A new precursor to synthesize g-C3N4 with superior visible light absorption for photocatalytic application

Abstract

Graphitic carbon nitride (g-C₃N₄) was synthesized with a new precursor (thiourea oxide) by a simple one-pot calcination method. Sulphur–oxygen co-doping could modulate the band structure of pristine g-C₃N₄, resulting in an absorption edge of up to 600 nm, which is well consistent with DFT calculation. Thus, its photocatalytic properties were enhanced.