High-efficient separation of photogenerated carriers in S-scheme BiOI@TpPa-1 heterojunction for enhanced photocatalytic CO 2 reduction: crystal face engineering and DFT calculations

Two novel BiOI@TpPa-1 COF S-scheme p–n heterojunctions have been successfully synthesized. In S-scheme heterojunctions, the interfacial electric field (IEF) and the crystal surface effect promote charge separation efficiently.