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<p>This study deals with the effect of temperature annealing on photocatalytic properties of samarium doped zinc oxide nanoparticles prepared by fast co-precipitation synthesis method. Powder X-ray diffraction (XRD) analysis indicates that the synthesized Sm:ZnO with and without heat treatment exhibits a wurtzite structure. Electron microscope (SEM) measurements reveal that the Sm:ZnO-NPs are nanorods with an average size of 20&#xa0;nm. Energy dispersion (EDX) analysis confirms that the NPs are primarily composed of samarium, zinc and oxygen. Sm:ZnO-NPs demonstrated significant catalytic performance in the degradation of methyl orange (MO) and methylene blue (MB) under UV irradiation. This study highlights the influence of heat processing on the potential use of Sm doped ZnO in wastewater treatment applications.</p> Graphical Abstract <p>Schematic representation of photocatalytic degradation mechanism in the presence of Sm doped ZnO under UV light irradiation</p> <p></p>

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Annealing Effect on the Photocatalytic Activity of Samarium Doped ZnO Prepared by Aqueous Precipitation Route

  • 期刊论文

  • 发表日期：

    2025年2月18日

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  • Khalil Abassi,
  • Zainab Hammami,
  • Tahar Ben Chaabane,
  • Noura Alzamil,
  • Amine Mezni,
  • Amor Ben Ali

摘要

This study deals with the effect of temperature annealing on photocatalytic properties of samarium doped zinc oxide nanoparticles prepared by fast co-precipitation synthesis method. Powder X-ray diffraction (XRD) analysis indicates that the synthesized Sm:ZnO with and without heat treatment exhibits a wurtzite structure. Electron microscope (SEM) measurements reveal that the Sm:ZnO-NPs are nanorods with an average size of 20 nm. Energy dispersion (EDX) analysis confirms that the NPs are primarily composed of samarium, zinc and oxygen. Sm:ZnO-NPs demonstrated significant catalytic performance in the degradation of methyl orange (MO) and methylene blue (MB) under UV irradiation. This study highlights the influence of heat processing on the potential use of Sm doped ZnO in wastewater treatment applications.

Graphical Abstract

Schematic representation of photocatalytic degradation mechanism in the presence of Sm doped ZnO under UV light irradiation