Electrochemical incineration of chloranilic acid using Ti/IrO2, Pb/PbO2 and Si/BDD electrodes

Martínez‐Huitle, Carlos A.; Quiróz, Marco A.; Comninellis, Christos; Ferro, Sergio; Battisti, Achille De

doi:10.1016/j.electacta.2004.07.035

Cited by 209 publications

(120 citation statements)

References 31 publications

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“…3, changing current density clearly influenced the cumulative current efficiency (C E) and oxidation rate constant . The cumulative current efficiency of electrolysis is defined by relationship (1) [25]:…”

Section: Parameters Of Organic Compound Degradationmentioning

confidence: 99%

Application of BDD thin film electrode for electrochemical decomposition of heterogeneous aromatic compounds

et al. 2012

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Abstract:The aim of the presented study is to investigate the applicability of electrochemical oxidation of aromatic compounds containing heteroatoms, e.g. waste from production of pesticides or pharmaceutics, at a borondoped diamond (BDD) electrode. The BDD electrodes were synthesized by microwave plasma enhanced chemical vapour deposition (MW PE CVD). Investigation of the electrode surface by optical microscopy and scanning electron microscopy (SEM) confirmed that the synthesized layer was continuous and formed a densely packed grain structure with an average roughness of less than 0 5 µm. The influence of important electrochemical parameters: current density, kind of reactor, pH or mixing operation, on the efficiency of the oxidation was investigated. The fouling of electrode's surface caused by the deposition of organic material was observed during CV and galvanostatic experiments. At low current density the oxidation rate constant k was low, but the current efficiency was relatively high. The BDD can be used successfully to remove heterogeneous aromatic compounds existing either as molecules or cations. During 4 h of electrolysis 95% of aromatic compounds were electrochemically decomposed to mineral forms. It was observed that the influence of the initial pH on mineralization was marginal. PACS

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Section: Parameters Of Organic Compound Degradationmentioning

confidence: 99%

Application of BDD thin film electrode for electrochemical decomposition of heterogeneous aromatic compounds

et al. 2012

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“…Graphite powder, 2-nitrophenyl octyl ether (2-NPOE), were purchased from Aldrich and used as received. phosphotungstic acid (PTA) H 3 [PW 12 O 40 ], and sodium tetraphenylborate (Na-TPB) Na[C 24 H 20 B], were obtained from Sigma.…”

Section: Chemicalsmentioning

confidence: 99%

“…Lead dioxide, is characterized by high oxygen overpotential. Therefore, it is one of the most commonly used anodes for the electrochemical degradation of many pollutants [11,12] particularly when it is doped with metallic cations whose oxides have low oxygen evolution overpotential.…”

Section: Introductionmentioning

confidence: 99%

Studies on Degradation of Diquat Pesticide in Aqueous Solutions Using Electrochemical Method

Ghalwa¹,

Shawish²,

Hamada³

et al. 2012

AJAC

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The C/PbO 2 electrode assisted electrochemical removal of diquat dibromide herbicides solutions has been the subject of the present investigation under several operating conditions. The optimum conditions of the treatment process are: current density of 150 mA/cm 2 , pH 2.2, NaCl concentration 2 g/L, temperature of 10˚C and initial diquat concentration of 50 mg/L. The time of electrolysis is 60 min for degradation rate of diquat and chemical oxygen demand (COD) removal is 210 min. The results were obtained by UV-Vis spectrophotometer and the present designed electrode was coincident.

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“…It has been shown that the electrode material plays a key role on the evolution of the oxidation process (Martínez-Huitle and Ferro, 2006;Martínez-Huitle et al, 2004;Belhadj and Savall, 1998) Quiroz et al, 2005;Panizza et al, 2001). Within this last group of electrode materials, boron doped diamond (Si/BDD) electrodes have received great attention due to the wide range of their electrochemical properties (Quiroz et al, 2006;Marcelli et al, 2003).…”

Section: Mechanism Of the Electrochemical Pollutan Oxidationmentioning

confidence: 99%

Advanced Oxidation Processes (AOPs) for Removal of Pesticides from Aqueous Media

Quiróz¹,

Bandala²,

Martínez‐Huitle³

2011

Pesticides - Formulations, Effects, Fate

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Electrochemical incineration of chloranilic acid using Ti/IrO2, Pb/PbO2 and Si/BDD electrodes

Cited by 209 publications

References 31 publications

Application of BDD thin film electrode for electrochemical decomposition of heterogeneous aromatic compounds

Application of BDD thin film electrode for electrochemical decomposition of heterogeneous aromatic compounds

Studies on Degradation of Diquat Pesticide in Aqueous Solutions Using Electrochemical Method

Advanced Oxidation Processes (AOPs) for Removal of Pesticides from Aqueous Media

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