Efficient electrochemical treatment based on electrodeposited thin films of birnessite for mineralisation of AMPA (aminomethylphosphonic acid) in very soft conditions

Autor: Sophie Peulon, Anne Pensel, Annie Chaussé
Přispěvatelé: Laboratoire Analyse et Modélisation pour la Biologie et l'Environnement (LAMBE), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Université d'Évry-Val-d'Essonne (UEVE)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Seine-Université Paris-Seine-Université d'Évry-Val-d'Essonne (UEVE)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Manganese compounds
Birnessite
Thin films
[SDV]Life Sciences [q-bio]
Inorganic chemistry
02 engineering and technology
Wastewater treatment
010501 environmental sciences
Electrochemistry
01 natural sciences
Electrochemical cell
lcsh:Chemistry
chemistry.chemical_compound
Degradation
Electrodeposition
Manganese oxide
Layered manganese oxide
Glyphosates
Reactivity (chemistry)
Aminomethylphosphonic acid
Thin film
Electrodes
0105 earth and related environmental sciences
Toxic materials
Chemistry
Herbicides
021001 nanoscience & nanotechnology
Mineralogy
Pollution
6. Clean water
Corrosion
Electrochemical oxidation
Wastewater
lcsh:Industrial electrochemistry
lcsh:QD1-999
13. Climate action
Degradation (geology)
[PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph]
Phosphonates
0210 nano-technology
lcsh:TP250-261
Organophosphorous compounds
Phyllomanganate
Zdroj: Electrochemistry Communications
Electrochemistry Communications, 2016, 69, pp.19-23. ⟨10.1016/j.elecom.2016.05.012⟩
Electrochemistry Communications, Elsevier, 2016, 69, pp.19-23. ⟨10.1016/j.elecom.2016.05.012⟩
Electrochemistry Communications, Vol 69, Iss, Pp 19-23 (2016)
ISSN: 1388-2481
Popis: The presence of AMPA in environment becomes today a real problem due to its persistence, its toxicity, and its multiple origins (main metabolite of glyphosate, the pesticide the most used in the world; degradation product of personal care and industrial products). This paper reports the development of a simple, effective, cheap and easy electrochemical treatment, for mineralising AMPA under very soft conditions: at room temperature, at free pH, and in a classical open electrochemical cell. The electrode material used is an electrodeposited thin film of birnessite, a non-toxic material, synthesised in very soft conditions. The original idea is to couple the spontaneous oxidative properties of birnessite to an electrochemical oxidation treatment in the aim to increase its reactivity towards this pollutant. Very good mineralisation rates and capacity (≈0.115 g AMPA mineralized by gramme of birnessite) were obtained with very low energy supplies (Q ≈ 3 C). Some tests performed with concentrated glyphosate solutions, one of its main parents, give also good results allowing us to envisage the development of an easy method of wastewater treatments at very low costs in complement of classical methods and/or directly at the source of pollution. Keywords: Layered manganese oxides, Phyllomanganate, Organophosphorous compounds, Phosphonates, Glyphosate
Databáze: OpenAIRE
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