Diamond electrodes for trace alpha pollutant sequestration via covalent grafting of nitrilotriacetic acid (NTA) ligand

Quang Thuan Tran 1 Jacques de Sanoit 1 Sylvie Pierre 2 Jean-Charles Arnault 1 Philippe Bergonzo 1
1 LCD-LIST - Laboratoire Capteurs Diamant
DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I
2 LNHB - Laboratoire National Henri Becquerel
DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I
Abstract : We describe a very simple and efficient route to functionalize boron-doped-diamond (BDD) electrodes with a chelating nitrilotriacetic acid (NTA) ligand. The BDD electrode surface was first functionalized with a carboxylic acid group via electrochemical grafting of 4-aminophenylcarboxylic acid in aqueous solution and subsequently linked to NTA ligand via a coupling reaction with amine terminated NTA ligand in PBS solution (pH 7.5). Modified BBD surfaces were characterized using X-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The present study has demonstrated that NTA functionalized BDD surfaces can successfully be used for reversible Am-241 sequestration in aqueous solution
Keywords : Boron-doped-diamond amine electrografting nitrilotriacetic acid ligand alpha-particle spectrometry GLASSY-CARBON ELECTRODE AQUEOUS-SOLUTION ELECTROCHEMICAL OXIDATION 4-AMINOBENZOIC ACID MULTILAYER FILMS DOPED DIAMOND SURFACE IMMOBILIZATION THERMODYNAMICS STABILITY
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Journal articles
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https://hal-cea.archives-ouvertes.fr/cea-01863446
Contributor : Marie-France Robbe <>
Submitted on : Tuesday, August 28, 2018 - 2:55:10 PM
Last modification on : Monday, September 30, 2019 - 3:02:02 PM

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Quang Thuan Tran, Jacques de Sanoit, Sylvie Pierre, Jean-Charles Arnault, Philippe Bergonzo. Diamond electrodes for trace alpha pollutant sequestration via covalent grafting of nitrilotriacetic acid (NTA) ligand. Electrochimica Acta, Elsevier, 2014, 136, pp.430 - 434. ⟨10.1016/j.electacta.2014.05.087⟩. ⟨cea-01863446⟩

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