Anisotropic Au-ZnO photocatalyst for the visible-light expanded oxidation of n-hexane
Financiación H2020 / H2020 Funds
Resumen: In this work we present a novel metal-semiconductor heterostructure that contains triangular and prism-shaped plasmonic gold nanostructures directly synthesized and assembled onto ZnO nanostructures. Spatially-resolved (SR) high-resolution electron energy loss spectroscopy (EELS) at the local (sub-nanometer scale) level confirmed the field enhancement of the local electromagnetic fields in the surroundings of the triangular and prism-shaped Au nanostructures and in the interfacial junction between Au and ZnO. Different LED excitation sources have been systematically selected in the whole UV–vis-NIR range to evaluate the photocatalytic response of the Au-ZnO heterostructures towards the oxidation of n-hexane, selected as a model VOC present in indoor environments. The Au-ZnO exhibits visible expanded photo-response with the more energetic interband and intraband electrons and the higher LED irradiation wavelengths and it is able to outperform its ZnO plain counterpart.
Idioma: Inglés
DOI: 10.1016/j.cattod.2020.03.063
Año: 2021
Publicado en: Catalysis Today 362 (2021), 97 - 103
ISSN: 0920-5861

Financiación: info:eu-repo/grantAgreement/EC/H2020/742684/EU/Catalytic Dual-Function Devices Against Cancer/CADENCE
Financiación: info:eu-repo/grantAgreement/EC/H2020/823717/EU/Enabling Science and Technology through European Electron Microscopy/ESTEEM3
Financiación: info:eu-repo/grantAgreement/ES/MINECO-AEI-FEDER/MAT2016-79776-P
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2016-79419-R
Tipo y forma: Article (PrePrint)
Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)

Exportado de SIDERAL (2021-01-22-08:21:27)

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 Notice créée le 2020-07-29, modifiée le 2021-01-22

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