A novel method for evaluating the photoelectrocatalytic performance of reduced graphene oxide/protonated g-C3N4 composites

• The rGO/P-g-C3N4 composites are prepared by the electrostatic attraction.
• The composites exhibit excellent catalytic activity for water dissociation in the BPM.
• A method for evaluating the photoelectrocatalytic performance is proposed.

we have successfully prepared the reduced graphene oxide/protonated g-C3N4 (rGO/P-g-C3N4) composites by the electrostatic attraction of oppositely charged. The as-prepared rGO/P-g-C3N4 composites exhibit excellent photoelectrocatalytic activity for water dissociation in the bipolar membrane (BPM), this method could be conveniently applied to evaluate the catalytic performance of rGO/P-g-C3N4.