Russian Journal of Electrochemistry

, Volume 55, Issue 10, pp 925–932 | Cite as

Electrocatalytic Efficiency of PbO2 in Water Decontamination

  • F. SmailiEmail author
  • A. Benchettara


In this work, the electrodeposition of lead dioxide on a Pb electrode was realized by a potentiostatic method in 0.5 mol/L sulfuric acid solution at 1.3 V (ECS) during 30 min. The result of XRD showed that the crystal structure of PbO2 in acid solution is pure β-PbO2. The electrodegradation of tris (4-(dimethylamino) phenyl) methylium chloride (methyl violet 10B) dye in an aqueous solution of 0.1 mol/L sodium sulfate has been studied by potentiostatic method using β-PbO2 as anode. The methyl violet 10B was successfully oxidized by hydroxyl radicals electrogenerated from oxidation of water on the Pb/β-PbO2 electrode surface. The anodic oxidation of methyl violet 10B followed the pseudo-first order kinetics. The time and applied potential had significant effect on the electrochemical degradation of methyl violet 10B at the Pb/β-PbO2 electrode with a degradation rate of 10.5 g/(m2 day).


Pb/PbO2 electrode electrochemical oxidation methyl violet 10B decontamination 



The author would like to thank Dr B. Bellal of laboratory of Storage and Valorization of Renewable Energies, Faculty of the Chemistry, U.S.T.H.B for his assistance in the UV–Visible spectroscopic analysis of the solutions before and after the degradation of the dye.


All authors made substantial contributions to conception and design, analysis, and interpretation of data, and edited the manuscript and approved the final version.


The authors declare that they have no conflict of interest.


The work was supported financially by the National Committee for Evaluation and Programmation of University Research (CNEPRU).


This article does not contain any studies involving animals performed by any of the authors.


This article does not contain any studies with human participants performed by any of the authors.


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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  1. 1.Laboratory of Electrochemistry-Corrosion, Metallurgy and Inorganic Chemistry, Faculty of Chemistry, (USTHB) BP 32AlgiersAlgeria

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