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<p>The bimetallic CoFe<sub>2</sub>O<sub>4</sub> nanoparticles were synthesized by the hydrothermal method. The synthesis was confirmed through characterization of the nanoparticles using Scanning Electron Microscopy (SEM), Energy-Dispersive X-rays Spectroscopy (EDS), Fourier Transform Infrared Spectroscopy (FTIR), X-rays Diffractometer (XRD), Transmission Electron Microscopy (TEM) and Selected Area Electron Diffraction (SAED) analyses. These nanoparticles were tested as catalyst for the degradation of p-nitrophenol (PNP). The kinetics of the degradation of PNP by H<sub>2</sub>O<sub>2</sub> in the presence CoFe<sub>2</sub>O<sub>4</sub> nanoparticles has been investigated with a focus on green chemistry perspectives. The degradation of PNP resulted into the decrease in absorbance values at 315&#xa0;nm and approximately 70% of the degradation was observed within 1&#xa0;h and 10&#xa0;min. The optimization of the degradation reaction was established through the kinetics studies performed under various reaction conditions, like variation in the dosage of nanoparticles, and concentrations of H<sub>2</sub>O<sub>2</sub> and PNP. The plot of the rate constant values against dosage of nanoparticles and [H<sub>2</sub>O<sub>2</sub>] gave maxima like curves while the variation in [PNP] showed insignificant change in the values of the rate constant.</p>

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Cobalt ferrite (CoFe2O4) nanoparticles as highly efficient heterogeneous catalysts for the Fenton-like degradation of p-nitrophenol

  • 期刊论文

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  • 发表日期：

    2026年7月14日

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  • Bhawana Singh,
  • M. Z. A. Rafiquee

摘要

The bimetallic CoFe2O4 nanoparticles were synthesized by the hydrothermal method. The synthesis was confirmed through characterization of the nanoparticles using Scanning Electron Microscopy (SEM), Energy-Dispersive X-rays Spectroscopy (EDS), Fourier Transform Infrared Spectroscopy (FTIR), X-rays Diffractometer (XRD), Transmission Electron Microscopy (TEM) and Selected Area Electron Diffraction (SAED) analyses. These nanoparticles were tested as catalyst for the degradation of p-nitrophenol (PNP). The kinetics of the degradation of PNP by H2O2 in the presence CoFe2O4 nanoparticles has been investigated with a focus on green chemistry perspectives. The degradation of PNP resulted into the decrease in absorbance values at 315 nm and approximately 70% of the degradation was observed within 1 h and 10 min. The optimization of the degradation reaction was established through the kinetics studies performed under various reaction conditions, like variation in the dosage of nanoparticles, and concentrations of H2O2 and PNP. The plot of the rate constant values against dosage of nanoparticles and [H2O2] gave maxima like curves while the variation in [PNP] showed insignificant change in the values of the rate constant.