Synergism between few-layer black phosphorus and graphitic carbon nitride enhances the photoredox C–H arylation under visible light irradiation

A volcano-shaped relation between the amount of FLBP in the FLBP/g-CN heterojunctions in the photoredox C–H arylation was exhibited. To understand the activity of 35 wt% FLBP/g-CN, band alignments of heterojunction was studied in detailed.