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<p>The microbiologically influenced corrosion (MIC) of mild steel 1010 caused by <i>Vibrio injensis</i> VS1, which was isolated from the industrial cooling tower system (CTS). The dual anticorrosion and biocidal properties of synthesized three molecules of N-substituted tetrabromophthalic inhibitors (N-TBI) were evaluated against corrosion and MIC. Among them, the 4,5,6,7 -tetrabromo-2- octylisoindoline-1,3-dione (TOID) exhibited the superior performance against the corrosion and inhibition of MIC. The <i>i</i><sub>corr</sub> was decreased by 95% and 90% under abiotic and biotic conditions, respectively. Further the increasing of R<sub>ct</sub> 1972.4 Ω cm<sup>2</sup> and 1157.9 Ω cm<sup>2</sup> in abiotic and biotic conditions. The synergistic effects of TOID adsorption on metal surface, suppressed the iron oxide layer formation and bacterial colonization as confirmed by Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Diffraction (XRD). This study highlights the potential of N-TBIs for environmentally friendly MIC control in CTS.</p>

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Dual-function of N-substituted tetrabromophthalic inhibitors for eco-friendly control of microbiologically influenced corrosion in industrial cooling systems

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年8月5日

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  • Krishnan Vignesh,
  • Sankar Sujithra,
  • Murugesan Vajjiravel,
  • Ramanathan Duraimurugan,
  • Jayaraman Narenkumar,
  • Sandhanasamy Devanesan,
  • Mohammad Ahmad Wadaan,
  • Rajaram Rajamohan,
  • Aruliah Rajasekar,
  • Tabarak Malik

摘要

The microbiologically influenced corrosion (MIC) of mild steel 1010 caused by Vibrio injensis VS1, which was isolated from the industrial cooling tower system (CTS). The dual anticorrosion and biocidal properties of synthesized three molecules of N-substituted tetrabromophthalic inhibitors (N-TBI) were evaluated against corrosion and MIC. Among them, the 4,5,6,7 -tetrabromo-2- octylisoindoline-1,3-dione (TOID) exhibited the superior performance against the corrosion and inhibition of MIC. The icorr was decreased by 95% and 90% under abiotic and biotic conditions, respectively. Further the increasing of Rct 1972.4 Ω cm2 and 1157.9 Ω cm2 in abiotic and biotic conditions. The synergistic effects of TOID adsorption on metal surface, suppressed the iron oxide layer formation and bacterial colonization as confirmed by Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Diffraction (XRD). This study highlights the potential of N-TBIs for environmentally friendly MIC control in CTS.