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<p>A novel composite material, consisting of carbon quantum dots and magnesium oxide, has been successfully synthesized to effectively stabilization of copper nanoparticles. The characterization of the Cu@CQD@MgO nanocomposite was conducted through a variety of analytical techniques, including FT-IR, SEM, EDS-SEM, TEM, EDX, and ICP analyses. This innovative material has demonstrated remarkable catalytic performance in the synthesis of pyran derivatives, achieving yields between 82 and 97% within 5–20&#xa0;min, as well as in the production of 1,2,3-triazole derivatives, with yields ranging from 85 to 97% over 15–20&#xa0;min. The method offers numerous benefits, such as conducting reactions under mild conditions, achieving high yields, and utilizing environmentally friendly solvents like a 1:1 mixture of water and ethanol at room temperature. Collectively, these advantages enhance the efficiency, reliability, and practicality of the synthetic approach outlined in the study, highlighting the potential of Cu@CQD@MgO as a versatile and effective catalyst for organic transformations. Furthermore, the capability to reuse the Cu@CQD@MgO nano catalyst for six consecutive cycles underscores its sustainability and cost-effectiveness, positioning it as a promising choice for large-scale production or continuous processing.</p>

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Cu@CQD@MgO as an eco-friendly nanocatalyst for muti-component green synthesis of pyrans and triazoles

  • 期刊论文

  • 发表日期：

    2025年12月2日

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  • Soheil Ejvar,
  • Robabeh Baharfar,
  • Heshmatollah Alinezhad,
  • Mahmood Tajbakhsh

摘要

A novel composite material, consisting of carbon quantum dots and magnesium oxide, has been successfully synthesized to effectively stabilization of copper nanoparticles. The characterization of the Cu@CQD@MgO nanocomposite was conducted through a variety of analytical techniques, including FT-IR, SEM, EDS-SEM, TEM, EDX, and ICP analyses. This innovative material has demonstrated remarkable catalytic performance in the synthesis of pyran derivatives, achieving yields between 82 and 97% within 5–20 min, as well as in the production of 1,2,3-triazole derivatives, with yields ranging from 85 to 97% over 15–20 min. The method offers numerous benefits, such as conducting reactions under mild conditions, achieving high yields, and utilizing environmentally friendly solvents like a 1:1 mixture of water and ethanol at room temperature. Collectively, these advantages enhance the efficiency, reliability, and practicality of the synthetic approach outlined in the study, highlighting the potential of Cu@CQD@MgO as a versatile and effective catalyst for organic transformations. Furthermore, the capability to reuse the Cu@CQD@MgO nano catalyst for six consecutive cycles underscores its sustainability and cost-effectiveness, positioning it as a promising choice for large-scale production or continuous processing.