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<p>CuO- ZnO-AgCl nanostructures were successfully synthesized by an ion-exchange photoreduction-process. The findings of X-ray diffraction analysis revealed that the synthesized material consisted of monoclinic CuO, hexagonal ZnO, and chlorargyrite structures. Scanning electron microscopy (SEM) revealed that the prepared material exhibited rod-like structures. The homogeneous replacement of Ag and Zn components in the CuO host material was proved by the energy dispersive X-ray (EDX) spectrum. According to PL research, the composite’s improved electron transfer performance and increased electron-hole pair separation efficiency which cause the higher degradation efficiency. In addition, the initial PL emission peak recorded around approximately 445&#xa0;nm provided an estimation of the band gap as approximately 2.78&#xa0;eV, placing the prepared structure within the range of the visible light so as to confirm the improved photocatalytic applications. Brunauer-Emmett-Teller (BET) analysis revealed that the sample exhibited a mesoporous structure with 24.55 m<sup>2</sup>/g surface area; therefore, the prepared sample was suitable for photocatalytic applications. The CuO - ZnO - AgCl displayed significant photocatalytic activity when exposed to irradiation light. Methylene blue (MB) degradation was examined by different dosage of the catalyst. Under the optimum conditions, the catalyst gave the best MB degradation performance of 97.36% after 40&#xa0;min. </p>

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Structural, optical and photocatalyst investigations of mesoporous CuO - ZnO- AgCl nanostructures synthesized via ion exchange photoreduction process

  • 期刊论文

  • 发表日期：

    2025年11月10日

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  • Hiba Basim Abbas Kadhim,
  • Firas K. Mohamad,
  • Noor J. Ridha,
  • Khawla J. Tahir

摘要

CuO- ZnO-AgCl nanostructures were successfully synthesized by an ion-exchange photoreduction-process. The findings of X-ray diffraction analysis revealed that the synthesized material consisted of monoclinic CuO, hexagonal ZnO, and chlorargyrite structures. Scanning electron microscopy (SEM) revealed that the prepared material exhibited rod-like structures. The homogeneous replacement of Ag and Zn components in the CuO host material was proved by the energy dispersive X-ray (EDX) spectrum. According to PL research, the composite’s improved electron transfer performance and increased electron-hole pair separation efficiency which cause the higher degradation efficiency. In addition, the initial PL emission peak recorded around approximately 445 nm provided an estimation of the band gap as approximately 2.78 eV, placing the prepared structure within the range of the visible light so as to confirm the improved photocatalytic applications. Brunauer-Emmett-Teller (BET) analysis revealed that the sample exhibited a mesoporous structure with 24.55 m2/g surface area; therefore, the prepared sample was suitable for photocatalytic applications. The CuO - ZnO - AgCl displayed significant photocatalytic activity when exposed to irradiation light. Methylene blue (MB) degradation was examined by different dosage of the catalyst. Under the optimum conditions, the catalyst gave the best MB degradation performance of 97.36% after 40 min.