Issue 4, 2020
From the journal:

Physical Chemistry Chemical Physics

Investigation of copper oxidation states in plasmonic nanomaterials by XAS and Raman spectroscopy†

Clémence Queffélec, ORCID logo *a   Florian Forato,a   Bruno Bujoli,a   D. Andrew Knight, ORCID logo b   Emiliano Fondac  and  Bernard Humbert ORCID logo *d  

* Corresponding authors

a Université de Nantes, CNRS, CEISAM, UMR 6230, F-44000 Nantes, France
E-mail: clemence.queffelec@univ-nantes.fr

b Department of Biomedical & Chemical Engineering & Sciences, Florida Institute of Technology, 150 West University Boulevard, Melbourne, Florida, USA

c Synchrotron SOLEIL, L’ormes des merisiers, Saint Aubin BP-48, Gif-Sur-Yvette Cedex, France

d Institut des Matériaux Jean Rouxel, CNRS-Université de Nantes, 2 rue de la Houssinière, 44322 Nantes Cedex 3, France
E-mail: Bernard.Humbert@cnrs-imn.fr

Abstract

Plasmonic core–shell-isolated nanoparticles are promising nanoplatforms for photocatalysis and for low detection analysis. This paper describes the characterization of a 2,2′-bipyridine phosphonate functionalized Ag@TiO2 nanocomposite which complexes copper ions by enhanced Raman spectroscopy and X-ray absorption (XANES and EXAFS). We distinguished Cu(I) from Cu(II) complexes using shell-isolated nanoparticle enhanced Raman (SHINERS) combined with XAS spectroscopy.

Graphical abstract: Investigation of copper oxidation states in plasmonic nanomaterials by XAS and Raman spectroscopy

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Article information

DOI
https://doi.org/10.1039/C9CP06478H
Article type
Paper
Submitted
29 Nov 2019
Accepted
20 Dec 2019
First published
21 Dec 2019

Phys. Chem. Chem. Phys., 2020,22, 2193-2199

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Investigation of copper oxidation states in plasmonic nanomaterials by XAS and Raman spectroscopy

C. Queffélec, F. Forato, B. Bujoli, D. A. Knight, E. Fonda and B. Humbert, Phys. Chem. Chem. Phys., 2020, 22, 2193 DOI: 10.1039/C9CP06478H

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