Engineering a CsPbBr 3 -based nanocomposite for efficient photocatalytic CO 2 reduction: improved charge separation concomitant with increased activity sites

nanocrystals and TiO-CN nanosheets, respectively, were observed under visible light irradiation. Our study provides an effective strategy for improving the photocatalytic activity of metal-halide perovskite nanocrystals, thus promoting their photocatalytic application in the field of artificial photosynthesis.