Hexacyano Ferrate (III) Reduction by Electron Transfer Induced by Plasmonic Catalysis on Gold Nanoparticles

Redox reactions are of great importance in environmental catalysis. Gold nanoparticles (Au-NPs) have attracted much attention because of their catalytic activity and their localized surface plasmon resonance (LSPR). In the present study, we investigated, in detail, the reduction of ferricyanide (III...

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Autores principales: Sarhid, Iyad, Lampre, Isabelle, Dragoe, Diana, Beaunier, Patricia, Palpant, Bruno, Remita, Hynd
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6766293/
https://www.ncbi.nlm.nih.gov/pubmed/31533263
http://dx.doi.org/10.3390/ma12183012
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author Sarhid, Iyad
Lampre, Isabelle
Dragoe, Diana
Beaunier, Patricia
Palpant, Bruno
Remita, Hynd
author_facet Sarhid, Iyad
Lampre, Isabelle
Dragoe, Diana
Beaunier, Patricia
Palpant, Bruno
Remita, Hynd
author_sort Sarhid, Iyad
collection PubMed
description Redox reactions are of great importance in environmental catalysis. Gold nanoparticles (Au-NPs) have attracted much attention because of their catalytic activity and their localized surface plasmon resonance (LSPR). In the present study, we investigated, in detail, the reduction of ferricyanide (III) ion into a ferrocyanide (II) ion catalyzed by spherical gold nanoparticles of two different sizes, 15 nm and 30 nm, and excited at their LSPR band. Experiments were conducted in the presence (or absence) of sodium thiosulfate. This catalysis is enhanced in the presence of Au- NPs under visible light excitation. This reduction also takes place even without sodium thiosulfate. Our results demonstrate the implication of hot electrons in this reduction.
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spelling pubmed-67662932019-09-30 Hexacyano Ferrate (III) Reduction by Electron Transfer Induced by Plasmonic Catalysis on Gold Nanoparticles Sarhid, Iyad Lampre, Isabelle Dragoe, Diana Beaunier, Patricia Palpant, Bruno Remita, Hynd Materials (Basel) Article Redox reactions are of great importance in environmental catalysis. Gold nanoparticles (Au-NPs) have attracted much attention because of their catalytic activity and their localized surface plasmon resonance (LSPR). In the present study, we investigated, in detail, the reduction of ferricyanide (III) ion into a ferrocyanide (II) ion catalyzed by spherical gold nanoparticles of two different sizes, 15 nm and 30 nm, and excited at their LSPR band. Experiments were conducted in the presence (or absence) of sodium thiosulfate. This catalysis is enhanced in the presence of Au- NPs under visible light excitation. This reduction also takes place even without sodium thiosulfate. Our results demonstrate the implication of hot electrons in this reduction. MDPI 2019-09-17 /pmc/articles/PMC6766293/ /pubmed/31533263 http://dx.doi.org/10.3390/ma12183012 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Sarhid, Iyad
Lampre, Isabelle
Dragoe, Diana
Beaunier, Patricia
Palpant, Bruno
Remita, Hynd
Hexacyano Ferrate (III) Reduction by Electron Transfer Induced by Plasmonic Catalysis on Gold Nanoparticles
title Hexacyano Ferrate (III) Reduction by Electron Transfer Induced by Plasmonic Catalysis on Gold Nanoparticles
title_full Hexacyano Ferrate (III) Reduction by Electron Transfer Induced by Plasmonic Catalysis on Gold Nanoparticles
title_fullStr Hexacyano Ferrate (III) Reduction by Electron Transfer Induced by Plasmonic Catalysis on Gold Nanoparticles
title_full_unstemmed Hexacyano Ferrate (III) Reduction by Electron Transfer Induced by Plasmonic Catalysis on Gold Nanoparticles
title_short Hexacyano Ferrate (III) Reduction by Electron Transfer Induced by Plasmonic Catalysis on Gold Nanoparticles
title_sort hexacyano ferrate (iii) reduction by electron transfer induced by plasmonic catalysis on gold nanoparticles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6766293/
https://www.ncbi.nlm.nih.gov/pubmed/31533263
http://dx.doi.org/10.3390/ma12183012
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