Investigation of copper oxidation states in plasmonic nanomaterials by XAS and Raman spectroscopy.,Physical Chemistry Chemical Physics

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Investigation of copper oxidation states in plasmonic nanomaterials by XAS and Raman spectroscopy.
Physical Chemistry Chemical Physics ( IF 2.9 ) Pub Date : 2020-01-08 , DOI: 10.1039/c9cp06478h
Clémence Queffélec ₁ , Florian Forato ₁ , Bruno Bujoli ₁ , D Andrew Knight ₂ , Emiliano Fonda ₃ , Bernard Humbert ₄

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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.

中文翻译：

XAS和拉曼光谱研究等离子体纳米材料中铜的氧化态。

等离激元核壳分离的纳米粒子是光催化和低检测分析的有前途的纳米平台。本文描述了2,2'-联吡啶膦酸酯官能化的Ag @ TiO2纳米复合材料的表征，该复合材料通过增强的拉曼光谱和X射线吸收（XANES和EXAFS）络合铜离子。我们使用与XAS光谱相结合的壳分离的纳米粒子增强拉曼光谱（SHINERS），将Cu（i）与Cu（ii）络合物区分开来。

更新日期：2020-01-08

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