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<p>Magnetic nanomaterials have attracted increasing attention for their multifunctional applications in catalysis, energy storage, and biomedical fields. In this study, a novel cobalt phthalocyanine–modified iron ferrite composite (CoPc@Fe<sub>3</sub>O<sub>4</sub>) was synthesized via a facile co-precipitation approach to enhance both electrochemical and antibacterial performance. The successful incorporation of Cobalt Phthalocyanine (CoPc) into Fe<sub>3</sub>O<sub>4</sub> was confirmed through FT-IR, UV–Vis spectroscopy, TGA, and TEM analyses. The CoPc@Fe<sub>3</sub>O<sub>4</sub> composite exhibited significant antibacterial activity, producing inhibition zones of 19.5&#xa0;mm and 18.4&#xa0;mm against <i>Escherichia coli</i> and <i>Staphylococcus aureus</i>, respectively. Electrochemical analysis using cyclic voltammetry showed clear Fe(III)/Fe(II) and Co(II)/Co(I) redox transitions with a wider potential range and nearly equal peak currents, suggesting a simple one-electron transfer process. These results demonstrate the synergistic effect of CoPc modification, establishing CoPc@Fe<sub>3</sub>O<sub>4</sub> as a promising multifunctional material for electrochemical energy devices and antibacterial applications.</p>

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Synthesis and characterization of CoPc@Fe3O4 nanocomposites and their electrochemical and antibacterial activity

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月20日

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  • Aaysha Pandey,
  • Vivek Sharma,
  • Ashish Gaur,
  • P. E. Lokhande,
  • Nandimalla Vishnu,
  • Deepak Kumar

摘要

Magnetic nanomaterials have attracted increasing attention for their multifunctional applications in catalysis, energy storage, and biomedical fields. In this study, a novel cobalt phthalocyanine–modified iron ferrite composite (CoPc@Fe3O4) was synthesized via a facile co-precipitation approach to enhance both electrochemical and antibacterial performance. The successful incorporation of Cobalt Phthalocyanine (CoPc) into Fe3O4 was confirmed through FT-IR, UV–Vis spectroscopy, TGA, and TEM analyses. The CoPc@Fe3O4 composite exhibited significant antibacterial activity, producing inhibition zones of 19.5 mm and 18.4 mm against Escherichia coli and Staphylococcus aureus, respectively. Electrochemical analysis using cyclic voltammetry showed clear Fe(III)/Fe(II) and Co(II)/Co(I) redox transitions with a wider potential range and nearly equal peak currents, suggesting a simple one-electron transfer process. These results demonstrate the synergistic effect of CoPc modification, establishing CoPc@Fe3O4 as a promising multifunctional material for electrochemical energy devices and antibacterial applications.