Publication date: 15th December 2025
Visible-light photoredox catalysis has emerged as a powerful tool in organic synthesis, offering a sustainable approach to generate reactive species using light as a renewable energy source. Despite recent advances, there is still a need for new heterogeneous photocatalysts based on semiconductor nanocrystals that exhibit exceptional photophysical properties, including broad absorption, narrow emission spectra, and high photostability. Their tunable optical and electronic properties make them very promising candidates for photocatalysis. In this presentation, several examples will be discussed, including the preparation of nanohybrids based on CsPbBr₃ and photoactive organic molecules (BODIPY, Phthalocyanine, Perylendiimide), the combination of two semiconductors such as CdS/TiO2, and the formation of CsPbBr3@CsPb2Br5 core@shell heterostructures and CsPbBr3/Pb4S3Y2 heterojunctions. Their photocatalytic activity in organic transformations will be compared with that of the pristine semiconductor, highlighting the key roles of organic ligands, bandgap alignment, and photocatalyst composition.
Financial support from the Generalitat Valenciana (Prometeo project, CIPROM/2022/57) is gratefully acknowledged.
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