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Study on Anodic Oxidation parameters for removal of pesticide Imidacloprid on a modified tantalum surface by lead dioxide film

  • Authors (legacy)
    Corresponding: Mabrouk Ben Brahim
    Co-authors: Mabrouk Ben Brahim, Sami Soukrata, Hafedh Belhadj Ammar, Youssef Samet

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  • gnest_03119_published.pdf
  • Paper ID
    gnest_03119
  • Paper status
    Published
  • Date paper submitted
  • Date paper accepted
  • Date paper online
DOI
https://doi.org/10.30955/gnj.003119
Abstract

The commercial imidacloprid (IMD) insecticide [1-(6-chloro-3-pyridinyl) methyl-4,5-dihydro-N-nitro-1H-imidazole-2-amine] is widely used for the enhancement of crop production, but the intensive use of this insecticide has caused serious environmental problems. This work presents an electrochemical process for the removal of this insecticide using galvanostatic electrolysis at modified tantalum surface by lead dioxide film anode (Ta(PbO2)) anode. The electrolytic process was monitored by chemical oxygen demand (COD). The influence of operating parameters, such as current density, initial concentration of IMD, temperature and initial pH value was investigated. The COD decay follows a pseudo first-order kinetic and the process was under mass transport control. COD removal reach 97% when using an apparent current density of 100 mA cm−2, initial COD of 953 mg L−1 and at 25 °C after 4.5 h electrolysis time.

Keywords
Imidacloprid Electrochemical degradation anodic oxidation PbO2 Ta Hydroxyl radicals.
Cite this article
Brahim, M.B. et al. (2020) “Study on Anodic Oxidation parameters for removal of pesticide Imidacloprid on a modified tantalum surface by lead dioxide film ”, Global NEST Journal, 22(1). Available at: https://doi.org/10.30955/gnj.003119.
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  • gnest_03119_published.pdf