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Degradation of diuron by the electro-Fenton process

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Abstract

The degradation of the herbicide diuron has been undertaken by electrochemical advanced oxidation in aqueous solution. This process generates catalytically hydroxyl radicals that are strong oxidizing reagents for the oxidation of organic substances. Hydroxyl radicals degrade diuron in less than 10 min. Kinetic results evidence a pseudo-first-order degradation, with a rate constant of reaction between diuron and hydroxyl radicals of 4.8x109 M−1 s−1. Several degradation products were identified by chromatography-mass spectrometry (LC-MS). The mineralization degree of a 1.7x10−4 M diuron solution reached 93% at 1,000 coulombs.

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Authors and Affiliations

  1. Laboratoire des Géomatériaux, CNRS FRE 2455, Université de Marne-la-Vallée, Champs-sur-Marne, France

    Mohamed C. Edelahi, Nihal Oturan & Mehmet A. Oturan

  2. Laboratoire de Chimie Analytique, INA P-G, Paris, France

    Yann Padellec & Alain Bermond

  3. Laboratoire d’Electrochimie et de Chimie Analytique, Faculté des Sciences, Université Mohammed V-Agdal, Rabat, Maroc

    Kacem El Kacemi

Authors
  1. Mohamed C. Edelahi
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  2. Nihal Oturan
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  3. Mehmet A. Oturan
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  4. Yann Padellec
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  5. Alain Bermond
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  6. Kacem El Kacemi
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Correspondence to Mehmet A. Oturan.

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Edelahi, M.C., Oturan, N., Oturan, M.A. et al. Degradation of diuron by the electro-Fenton process. Environ Chem Lett 1, 233–236 (2003). https://doi.org/10.1007/s10311-003-0052-5

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  • DOI: https://doi.org/10.1007/s10311-003-0052-5

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