Scholarlink

<p>In this study, iron oxide nanoparticles (IONPs) is synthesized via the combustion method using iron nitrate as a precursor, with glycine, urea, and citric acid as organic fuels. The influence of these fuels on the structural, morphological, and photocatalytic properties of α-Fe₂O₃ nanoparticles (NPs) was systematically investigated. The phase structure of α-Fe₂O₃ NPs is confirmed through X-ray diffraction (XRD) and Raman spectroscopy, while their elemental composition, surface morphology, and optical bandgap is analyzed using energy-dispersive X-ray spectroscopy (EDS), field emission scanning electron microscopy (FESEM), and UV-Vis spectroscopy, respectively. Electrochemical impedance spectroscopy (EIS) is employed to assess the charge transfer properties. The photocatalytic efficiency of the synthesized α-Fe₂O₃ NPs was evaluated through the degradation of Methyl Red (MR) dye under light irradiation, monitored via digital colorimetry. Among the synthesized samples, α-Fe₂O₃-G (prepared using glycine as fuel) exhibited the highest degradation efficiency, achieving 72% MR removal within 300&#xa0;min. These findings highlight the potential of combustion-synthesized α-Fe₂O₃ NPs for effective photocatalytic dye degradation applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Iron oxide (α-Fe2O3) nanoparticles: synthesis, characterization, and the degradation of methyl red

  • 期刊论文

  • 发表日期：

    2025年7月22日

查看全文
  • Shivani,
  • Ramesh S. Bhat,
  • Shyama Prasad Sajankila,
  • Bindu AG

摘要

In this study, iron oxide nanoparticles (IONPs) is synthesized via the combustion method using iron nitrate as a precursor, with glycine, urea, and citric acid as organic fuels. The influence of these fuels on the structural, morphological, and photocatalytic properties of α-Fe₂O₃ nanoparticles (NPs) was systematically investigated. The phase structure of α-Fe₂O₃ NPs is confirmed through X-ray diffraction (XRD) and Raman spectroscopy, while their elemental composition, surface morphology, and optical bandgap is analyzed using energy-dispersive X-ray spectroscopy (EDS), field emission scanning electron microscopy (FESEM), and UV-Vis spectroscopy, respectively. Electrochemical impedance spectroscopy (EIS) is employed to assess the charge transfer properties. The photocatalytic efficiency of the synthesized α-Fe₂O₃ NPs was evaluated through the degradation of Methyl Red (MR) dye under light irradiation, monitored via digital colorimetry. Among the synthesized samples, α-Fe₂O₃-G (prepared using glycine as fuel) exhibited the highest degradation efficiency, achieving 72% MR removal within 300 min. These findings highlight the potential of combustion-synthesized α-Fe₂O₃ NPs for effective photocatalytic dye degradation applications.