Tailoring the ratio of ammonium chloride and graphitic carbon nitride for high photocatalytic activity

In this study, bulk g-C3N4 and modified porous g-C3N4 nanosheets catalyst materials were synthesized in a simple and facile way. The catalysts were subsequently characterized systematically to obtain their structure, morphology and optical properties. The photocatalytic performance of the synthesized catalysts were investigated by degrading RhB. The results indicated that the optimal mass ratio of ammonium chloride to melamine is 4:1, the photocatalytic activity of g-C3N4 is the best, which is 6.97 times as high as that of pure g-C3N4. In addition, it was found by cycle experiments that g-C3N4-4 has excellent chemical stability and recyclability.