Study of degradation intermediates formed during electrochemical oxidation of pesticide residue 2,6-dichlorobenzamide (BAM) at boron doped diamond (BDD) and platinum-iridium anodes
作者： Henrik Tækker Madsen , Erik Gydesen Søgaard , Jens Muff
DOI: 10.1016/J.CHEMOSPHERE.2014.03.020
关键词:
摘要: Electrochemical oxidation is a promising technique for degradation of otherwise recalcitrant organic micropollutants in waters. In this study, the applicability electrochemical was investigated concerning groundwater pollutant 2,6-dichlorobenzamide (BAM) through oxygen transfer process with two anode materials: Ti/Pt90-Ir10 and boron doped diamond (Si/BDD). Besides efficiency main pollutant, it also outmost importance to control formation fate stable intermediates. These were quantitatively HPLC-MS TOC measurements qualitatively combined HPLC-UV protocol. 2,6-Dichlorobenzamide found be degraded most efficiently by BDD cell, which resulted significantly lower amounts intermediates formed during process. The anodic pathway occur via substitution hydroxyl groups until ring cleavage leading carboxylic acids. For there parallel cathodic that occurred dechlorination. combination HPLC-UV/MS powerful method determining amount nature
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Agnieszka Kapałka, György Fóti, Christos Comninellis, The importance of electrode material in environmental electrochemistry: Formation and reactivity of free hydroxyl radicals on boron-doped diamond electrodes Electrochimica Acta. ,vol. 54, pp. 2018- 2023 ,(2009) , 10.1016/J.ELECTACTA.2008.06.045
Christos Comninellis, Electrocatalysis in the electrochemical conversion/combustion of organic pollutants for waste water treatment Electrochimica Acta. ,vol. 39, pp. 1857- 1862 ,(1994) , 10.1016/0013-4686(94)85175-1
Birame Boye, Enric Brillas, Beatrice Marselli, Pierre-Alain Michaud, Christos Comninellis, Giuseppe Farnia, Giancarlo Sandonà, Electrochemical incineration of chloromethylphenoxy herbicides in acid medium by anodic oxidation with boron-doped diamond electrode Electrochimica Acta. ,vol. 51, pp. 2872- 2880 ,(2006) , 10.1016/J.ELECTACTA.2005.08.019
Jens Muff, Henrik Jepsen, Erik Søgaard, Bench-Scale Study of Electrochemical Oxidation for On-Site Treatment of Polluted Groundwater Journal of Environmental Engineering. ,vol. 138, pp. 915- 922 ,(2012) , 10.1061/(ASCE)EE.1943-7870.0000561
F. Bonfatti, S. Ferro, F. Lavezzo, M. Malacarne, G. Lodi, A. De Battisti, Electrochemical Incineration of Glucose as a Model Organic Substrate. II. Role of Active Chlorine Mediation Journal of The Electrochemical Society. ,vol. 147, pp. 592- 596 ,(2000) , 10.1149/1.1393238
Michele Mascia, Annalisa Vacca, Anna Maria Polcaro, Simonetta Palmas, Jesus Rodriguez Ruiz, Anna Da Pozzo, Electrochemical treatment of phenolic waters in presence of chloride with boron-doped diamond (BDD) anodes: experimental study and mathematical model. Journal of Hazardous Materials. ,vol. 174, pp. 314- 322 ,(2010) , 10.1016/J.JHAZMAT.2009.09.053
Ignasi Sirés, Enric Brillas, Giacomo Cerisola, Marco Panizza, Comparative depollution of mecoprop aqueous solutions by electrochemical incineration using BDD and PbO2 as high oxidation power anodes Journal of Electroanalytical Chemistry. ,vol. 613, pp. 151- 159 ,(2008) , 10.1016/J.JELECHEM.2007.10.023
Youssef Samet, Lamia Agengui, Ridha Abdelhédi, Electrochemical degradation of chlorpyrifos pesticide in aqueous solutions by anodic oxidation at boron-doped diamond electrodes Chemical Engineering Journal. ,vol. 161, pp. 167- 172 ,(2010) , 10.1016/J.CEJ.2010.04.060
Geoffroy RP Malpass, Giancarlo R Salazar-Banda, Douglas W Miwa, Sérgio AS Machado, Artur J Motheo, None, Comparing atrazine and cyanuric acid electro-oxidation on mixed oxide and boron-doped diamond electrodes Environmental Technology. ,vol. 34, pp. 1043- 1051 ,(2013) , 10.1080/09593330.2012.733420
S. Yoshihara, M. Murugananthan, Decomposition of various endocrine-disrupting chemicals at boron-doped diamond electrode Electrochimica Acta. ,vol. 54, pp. 2031- 2038 ,(2009) , 10.1016/J.ELECTACTA.2008.07.006