Enhancement of photocatalytic performance via a P3HT-g-C3N4 heterojunction

P3HT-g-C3N4 photocatalysts with high activity have been fabricated by assembling p-type P3HT particles on n-type g-C3N4 nanoplates via a ball milling method. The photocatalytic activity of the P3HT-g-C3N4 photocatalysts for the degradation of MB was 2 times higher than that of pure g-C3N4. The formation of a heterojunction interface of P3HT-g-C3N4 photocatalysts enhanced the separation efficiency of photogenerated electron–hole pairs and resulted in the enhancement of photocatalytic performance. The potential difference in the heterojunction is the main driving force for efficient charge separation and transfer.