Scholarlink

<p>In the pursuit of sustainable and eco-friendly catalytic systems, plant-mediated synthesis of nanomaterials has garnered significant attention. In this study, we report a green and efficient ultrasonication-assisted synthesis of metal and bimetallic oxide nanoparticles—CuO, NiO, NiO–CuO, and ZnO–CuO—using Lasiosiphon glaucus leaf extract as a natural reducing and stabilizing agent. The synthesized nanoparticles were thoroughly characterized by X-ray diffraction (XRD), confirming their crystalline nature. Among the prepared nanomaterials, NiO–CuO exhibited the smallest average crystallite size, suggesting a higher surface area and superior catalytic potential. These nanocatalysts were then evaluated for their efficiency in the synthesis of biologically relevant benzo[b]pyran derivatives under ultrasonication conditions, achieving completion within just 4&#xa0;min. NiO–CuO demonstrated the highest catalytic activity, providing excellent yields with significantly reduced reaction times. The enhanced performance is attributed to the nanoscale dimensions, synergistic effects of the bimetallic composition, and increased surface reactivity. This green methodology not only eliminates the need for hazardous reagents but also adheres to the principles of sustainable chemistry through the use of renewable plant resources and energy-efficient ultrasonication. The findings underscore the potential of phytosynthesized bimetallic nanocatalysts in advancing eco-friendly organic transformations.</p> Graphical abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Ultrasonication-assisted phytosynthesis of NiO-CuO nanocatalysts for green synthesis of Benzo[b]pyran derivatives

  • 期刊论文

  • 发表日期：

    2025年7月18日

查看全文
  • Nilesh T. Pandit,
  • Avdhut D. Kadam,
  • Nilam P. Dhumal,
  • Prakash D. Kokare,
  • Pramod M. Gaikwad,
  • Avinash A. Survase,
  • Nilofar A. Mulla,
  • Santosh B. Kamble

摘要

In the pursuit of sustainable and eco-friendly catalytic systems, plant-mediated synthesis of nanomaterials has garnered significant attention. In this study, we report a green and efficient ultrasonication-assisted synthesis of metal and bimetallic oxide nanoparticles—CuO, NiO, NiO–CuO, and ZnO–CuO—using Lasiosiphon glaucus leaf extract as a natural reducing and stabilizing agent. The synthesized nanoparticles were thoroughly characterized by X-ray diffraction (XRD), confirming their crystalline nature. Among the prepared nanomaterials, NiO–CuO exhibited the smallest average crystallite size, suggesting a higher surface area and superior catalytic potential. These nanocatalysts were then evaluated for their efficiency in the synthesis of biologically relevant benzo[b]pyran derivatives under ultrasonication conditions, achieving completion within just 4 min. NiO–CuO demonstrated the highest catalytic activity, providing excellent yields with significantly reduced reaction times. The enhanced performance is attributed to the nanoscale dimensions, synergistic effects of the bimetallic composition, and increased surface reactivity. This green methodology not only eliminates the need for hazardous reagents but also adheres to the principles of sustainable chemistry through the use of renewable plant resources and energy-efficient ultrasonication. The findings underscore the potential of phytosynthesized bimetallic nanocatalysts in advancing eco-friendly organic transformations.

Graphical abstract