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

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

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

Document type :

Journal articles

Domain :

Engineering Sciences [physics] / Micro and nanotechnologies/Microelectronics

Chemical Sciences / Inorganic chemistry

Physics [physics] / Nuclear Experiment [nucl-ex]

Complete list of metadatas

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, May 13, 2019 - 11:15:25 AM

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

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

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