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Oxides of transition metals are widely explored for their optoelectronic properties; among them Copper oxide (CuO) is a wide bandgap semiconductor exploited for its photoconductive and photochemical properties. CuO thin film was prepared over glass substrate by the aerosol spray pyrolysis technique using only cupric nitrate trihydrate (Cu (NO3).3H2O). Structural analysis and phase purity of CuO film is explored by XRD and the surface topography are studied using FE-SEM. The optical band gap of 2.67 eV for CuO film is estimated using Tauc plot. Photocatalytic degradation of methyl violet organic dye is demonstrated using CuO thin film photocatalyst with an efficiency of 76.7% under white light LED for 180 min of illumination.

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Spray Coated CuO Thin Film for Photocatalytic Degradation of Methyl Violet Dye

  • 会议论文

  • 发表日期：

    2025年

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  • Yuvashree Jayavelu,
  • Meghana Pavithran,
  • Gouranga Maharana,
  • K. T. Hari Govind,
  • Alista Mariya Abraham,
  • Kathyayani Nerella,
  • Benjamin Hudson Baby,
  • M. Kovendhan,
  • D. Paul Joseph

摘要

Oxides of transition metals are widely explored for their optoelectronic properties; among them Copper oxide (CuO) is a wide bandgap semiconductor exploited for its photoconductive and photochemical properties. CuO thin film was prepared over glass substrate by the aerosol spray pyrolysis technique using only cupric nitrate trihydrate (Cu (NO3).3H2O). Structural analysis and phase purity of CuO film is explored by XRD and the surface topography are studied using FE-SEM. The optical band gap of 2.67 eV for CuO film is estimated using Tauc plot. Photocatalytic degradation of methyl violet organic dye is demonstrated using CuO thin film photocatalyst with an efficiency of 76.7% under white light LED for 180 min of illumination.