Visible light-driven molecular oxygen activation for oxidative amidation of alcohols using lead-free metal halide perovskite.

ABSTRACT: Herein, we report the modulation of the band structures of halide perovskite Cs₂CuBr₄ by tuning the synthesis methods. The photocatalyst PC-1, synthesized by the hot injection method, has a more negative conduction band minima (CBM) than the photocatalyst PC-2, synthesized at room temperature. As a result, PC-1 can activate molecular O₂ more efficiently to initiate the radical-mediated dehydrogenation of alcohols. The more positive valence band maxima (VBM) of PC-1 also facilitates amine oxidation to the corresponding radical. Further, improved charge separation and transport and a decrement in the photogenerated charge carrier recombination have been detected for PC-1 to enhance photocatalytic activity. PC-1 showed improved yields for a series of structura

SUBMITTER: Kumar V 

PROVIDER: S-EPMC11376079 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature