Anodic oxidation of oxytetracycline: Influence of the experimental conditions on the degradation rate and mechanism

The anodic oxidation of oxytetracycline was performed with success using as anode a boron-doped diamond electrode. The experiments were conducted in batch mode, using two different electrochemical cells: an up-flow cell, with recirculation, that was used to evaluate the influence of recirculation fl...

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Main Authors: Annabel Fernandes, Catarina Oliveira, Maria J. Pacheco, Lurdes Ciríaco, Ana Lopes
Format: Article
Language:English
Published: International Association of Physical Chemists (IAPC) 2014-12-01
Series:Journal of Electrochemical Science and Engineering
Subjects:
Online Access:http://pub.iapchem.org/ojs/index.php/JESE/article/view/120
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author Annabel Fernandes
Catarina Oliveira
Maria J. Pacheco
Lurdes Ciríaco
Ana Lopes
author_facet Annabel Fernandes
Catarina Oliveira
Maria J. Pacheco
Lurdes Ciríaco
Ana Lopes
author_sort Annabel Fernandes
collection DOAJ
description The anodic oxidation of oxytetracycline was performed with success using as anode a boron-doped diamond electrode. The experiments were conducted in batch mode, using two different electrochemical cells: an up-flow cell, with recirculation, that was used to evaluate the influence of recirculation flow rate; and a stirred cell, used to determine the influence of the applied current density. Besides oxytetracyclin electrodegradation rate and mineralization extent, oxidation by-products were also assessed. Both the flow rate and the applied current density have shown positive influence on the oxytetracycline oxidation rate. On the other hand, the mineralization degree presented the highest values at the lowest flow rate and the lowest current density tested. The main oxidation by-products detected were oxalic, oxamic and maleic acids.
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spelling doaj.art-55b7ed5a96b6411f838af0b3171e56ad2022-12-22T03:05:43ZengInternational Association of Physical Chemists (IAPC)Journal of Electrochemical Science and Engineering1847-92862014-12-014410.5599/jese.0.0.120Anodic oxidation of oxytetracycline: Influence of the experimental conditions on the degradation rate and mechanismAnnabel Fernandes0Catarina Oliveira1Maria J. Pacheco2Lurdes Ciríaco3Ana Lopes4UMTP and Department of Chemistry, University of Beira Interior, 6201-001 CovilhãUMTP and Department of Chemistry, University of Beira Interior, 6201-001 CovilhãUMTP and Department of Chemistry, University of Beira Interior, 6201-001 CovilhãUMTP and Department of Chemistry, University of Beira Interior, 6201-001 CovilhãUMTP and Department of Chemistry, University of Beira Interior, 6201-001 CovilhãThe anodic oxidation of oxytetracycline was performed with success using as anode a boron-doped diamond electrode. The experiments were conducted in batch mode, using two different electrochemical cells: an up-flow cell, with recirculation, that was used to evaluate the influence of recirculation flow rate; and a stirred cell, used to determine the influence of the applied current density. Besides oxytetracyclin electrodegradation rate and mineralization extent, oxidation by-products were also assessed. Both the flow rate and the applied current density have shown positive influence on the oxytetracycline oxidation rate. On the other hand, the mineralization degree presented the highest values at the lowest flow rate and the lowest current density tested. The main oxidation by-products detected were oxalic, oxamic and maleic acids.http://pub.iapchem.org/ojs/index.php/JESE/article/view/120TetracyclinesBDDantibioticspharmaceutical compoundselectrochemical degradation
spellingShingle Annabel Fernandes
Catarina Oliveira
Maria J. Pacheco
Lurdes Ciríaco
Ana Lopes
Anodic oxidation of oxytetracycline: Influence of the experimental conditions on the degradation rate and mechanism
Journal of Electrochemical Science and Engineering
Tetracyclines
BDD
antibiotics
pharmaceutical compounds
electrochemical degradation
title Anodic oxidation of oxytetracycline: Influence of the experimental conditions on the degradation rate and mechanism
title_full Anodic oxidation of oxytetracycline: Influence of the experimental conditions on the degradation rate and mechanism
title_fullStr Anodic oxidation of oxytetracycline: Influence of the experimental conditions on the degradation rate and mechanism
title_full_unstemmed Anodic oxidation of oxytetracycline: Influence of the experimental conditions on the degradation rate and mechanism
title_short Anodic oxidation of oxytetracycline: Influence of the experimental conditions on the degradation rate and mechanism
title_sort anodic oxidation of oxytetracycline influence of the experimental conditions on the degradation rate and mechanism
topic Tetracyclines
BDD
antibiotics
pharmaceutical compounds
electrochemical degradation
url http://pub.iapchem.org/ojs/index.php/JESE/article/view/120
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