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<p>In this study, TiO<sub>2</sub>–ZnO composite coatings were prepared using spray pyrolysis method and specific precursors were employed to deposit thin films. The aim of the current work is to investigate the mechanical, optical and structural properties of the coatings. The latter were characterized utilizing scanning electron microscopy (SEM), X-ray diffraction (XRD), ultraviolet–visible spectroscopy and nanoindentation. XRD analysis confirmed the presence of both TiO<sub>2</sub> and ZnO phases in the composite. SEM images revealed a uniform and dense surface morphology. Nanoindentation tests demonstrated a significant improvement in the hardness and indentation resistance of TiO<sub>2</sub>–ZnO composite coatings, compared to pure TiO<sub>2</sub> coating. UV–visible spectroscopy indicated strong absorption in the visible-light spectrum, suggesting the potential application of TiO<sub>2</sub>–ZnO composite coatings in photocatalysis and solar energy conversion. This research provides deep insight about the fabrication and properties of TiO<sub>2</sub>–ZnO composite coatings, highlighting their potential use in advanced material applications in energy and environmental technologies.</p>

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Elaboration of TiO2–ZnO Coatings Through Spray-Pyrolysis Technology and the Study of Their Microstructural, Nanoindentation and Optic Properties

  • 期刊论文

  • 发表日期：

    2025年6月19日

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  • Jassem Kammoun,
  • Hafedh Dhiflaoui,
  • Slah Chayoukhi,
  • Bilel Gassoumi,
  • Hicham Benhayoune,
  • Anouar Hajjaji,
  • Naoufel Ben Moussa

摘要

In this study, TiO2–ZnO composite coatings were prepared using spray pyrolysis method and specific precursors were employed to deposit thin films. The aim of the current work is to investigate the mechanical, optical and structural properties of the coatings. The latter were characterized utilizing scanning electron microscopy (SEM), X-ray diffraction (XRD), ultraviolet–visible spectroscopy and nanoindentation. XRD analysis confirmed the presence of both TiO2 and ZnO phases in the composite. SEM images revealed a uniform and dense surface morphology. Nanoindentation tests demonstrated a significant improvement in the hardness and indentation resistance of TiO2–ZnO composite coatings, compared to pure TiO2 coating. UV–visible spectroscopy indicated strong absorption in the visible-light spectrum, suggesting the potential application of TiO2–ZnO composite coatings in photocatalysis and solar energy conversion. This research provides deep insight about the fabrication and properties of TiO2–ZnO composite coatings, highlighting their potential use in advanced material applications in energy and environmental technologies.