Colloidal formamidinium lead bromide quantum dots for photocatalytic CO2 reduction

With the target of bringing out a sustainable carbon-neutral system, halide perovskite materials have been explored to fulfil the requirements of solar-to-fuel conversion. Herein, formamidinium (CH (NH2)(2)(+)) lead bromide quantum dot (FAPbBr(3) QD) as a novel of photocatalyst is researched, which exhibits an excellent photostability and the optimum CO yield rate of 181.25 mu mol.g(-1).h(-1) towards photocatalytic CO2 reduction in the mixed solvent of deionized water/ethyl acetate. Furthermore, the kinetic features of exciton bleach and photoluminescence spectra infer that FAPbBr(3) QDs have an enough lifetime to separate and transfer charges for adsorbing CO2 molecules, thus facilitating the photocatalytic CO2 reduction. This study puts forward a reliable avenue of organic-inorganic hybrid perovskite materials as efficient photocatalysts to convert CO2 into valuable chemical fuels. (C) 2020 Elsevier B.V. All rights reserved.

Automated summary

This study investigates the photocatalytic CO2 reduction using formamidinium lead bromide quantum dots, which show high CO yield rate and photostability, presenting a reliable pathway for converting CO2 into valuable chemical fuels.