In situ confinement of CsPbBr 3 quantum dots within COFs for enhanced photocatalytic CO 2 reduction

CsPbBr 3 QDs encapsulated in a TTATFA-COF matrix prevent aggregation, enhance stability, and promote charge separation. The composite achieves 64.5 μmol g −1 h −1 CO production with 90.97% selectivity under visible light.