Highly Efficient Electron Transfer in a Carbon Dot-Polyoxometalate Nanohybrid

Alice Sciortino, Simonpietro Agnello, Fabrizio Messina, Marco Cannas, Delphine Schaming, Antonino Madonia, Mercè Martin-Sabi, Souad Ammar

Risultato della ricerca: Articlepeer review

3 Citazioni (Scopus)

Abstract

Using solar radiation to fuel catalytic processes is often regarded as the solution to our energy needs. However, developing effective photocatalysts that are active under visible light has proven to be difficult, often due to the toxicity, instability, and high cost of suitable catalysts. We engineered a novel photoactive nanomaterial obtained by the spontaneous electrostatic coupling of carbon nanodots with [P2W18O62]6-, a molecular catalyst belonging to the class of polyoxometalates. While the former are used as photosensitizers, the latter was chosen for its ability to catalyze reductive reactions such as dye decomposition and water splitting. We find the electron transfer within the nanohybrid to be so efficient that a charge-separated state is formed within 120 fs from photon absorption. These results are a cornerstone in the engineering of a new class of nanodevices, which are nontoxic, are inexpensive, and can carry out solar-driven catalytic processes.
Lingua originaleEnglish
pagine (da-a)4379-4384
Numero di pagine6
RivistaTHE JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume11
Stato di pubblicazionePublished - 2020

All Science Journal Classification (ASJC) codes

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  • Physical and Theoretical Chemistry

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