Scholarlink

<p>Manganese oxide (Mn₃O₄) thin films were successfully deposited onto glass substrates using the spray pyrolysis technique. The effect of substrate temperature on the structural, optical, morphological, and photocatalytic properties of the films was systematically investigated using X-ray diffraction (XRD), Raman spectroscopy, UV–Vis spectrophotometry, and scanning electron microscopy (SEM). XRD patterns confirmed the polycrystalline nature of all samples, which was further supported by Raman spectroscopy. Optical measurements showed an average transmittance of approximately 70% in the visible region, while the optical band gap exhibited a strong dependence on substrate temperature, indicating the tunability of Mn₃O₄ thin films through growth conditions. The photocatalytic activity was evaluated by monitoring the degradation of methylene blue (MB) dye under natural sunlight irradiation. The films demonstrated a remarkable degradation efficiency of nearly 82% within 180&#xa0;min, highlighting their strong potential for environmental remediation 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

Effect of deposition temperature on the growth and solar photocatalytic efficiency of Mn₃O₄ thin films

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月13日

查看全文
  • Ghada El Fidha,
  • Nabila Bitri,
  • I. Ly,
  • Eduard Llobet

摘要

Manganese oxide (Mn₃O₄) thin films were successfully deposited onto glass substrates using the spray pyrolysis technique. The effect of substrate temperature on the structural, optical, morphological, and photocatalytic properties of the films was systematically investigated using X-ray diffraction (XRD), Raman spectroscopy, UV–Vis spectrophotometry, and scanning electron microscopy (SEM). XRD patterns confirmed the polycrystalline nature of all samples, which was further supported by Raman spectroscopy. Optical measurements showed an average transmittance of approximately 70% in the visible region, while the optical band gap exhibited a strong dependence on substrate temperature, indicating the tunability of Mn₃O₄ thin films through growth conditions. The photocatalytic activity was evaluated by monitoring the degradation of methylene blue (MB) dye under natural sunlight irradiation. The films demonstrated a remarkable degradation efficiency of nearly 82% within 180 min, highlighting their strong potential for environmental remediation applications.