Novel inorganic perovskite quantum dots for photocatalysis

Herein, we report the performance of CsPbX₃ (X = Cl, Br, and I) perovskite quantum dots (QDs) for photocatalytic degradation of organic dyes. The photocatalytic performance of CsPbX₃ QDs was characterized by UV-vis absorption spectra and ESI-MS, which evaluated their ability of degrading methyl orange (MO) solution under visible light irradiation. Interestingly, both CsPbCl₃ and CsPbBr₃ QDs show excellent photocatalytic activities, which can decompose the MO solution into a colorless solution within 100 min. This study demonstrates the potential of CsPbX₃ QDs in the degradation of organic dyes and environmentally friendly applications. Moreover, the integration of CsPbX₃ QDs and photocatalysis provides a new insight for the design of new photocatalysts.