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<p>The present study focused on the production of copper oxide nanoparticles (CuO NPs) using a simple, cost-effective, environmentally friendly, and green synthesis method. <i>Strychnos potatorum</i> seed extract was used as a capping and reducing agent. UV-visible spectroscopy, FTIR spectroscopy, X-ray diffraction, Scanning electron microscope, Transmission electron microscopy, Energy Dispersive X-ray diffraction, and Brunauer-Emmett-Teller (BET) analysis were utilized to assess the physicochemical properties of CuO NPs. In addition, the photocatalytic efficiency of the synthesized particles was evaluated using Nile Blue (NB) and Reactive Yellow 160 (RY160) with the help of sunlight. The SEM results confirmed that the synthesized particles were monodisperse and quasi-spherical. The TEM images revealed an average particle size of 2–6&#xa0;nm and the BET surface area was found to be 52.6 m<sup>2</sup>/g. The synthesized CuO NPs acted as catalysts for the removal of dyes from the water. 3&#xa0;mg/L of biogenic CuO NPs facilitated 95% of NB removal after 2&#xa0;h under sunlight. 8&#xa0;mg/L of the synthesized CuO NPs displayed 80% of RY160 was degraded after 140&#xa0;min of sunlight exposure. The specific innovation of this research is the utilization of <i>S. potatorum</i>, to synthesize CuO NPs. Biogenic CuO NPs might be used for the remediation of industrial dye-contaminated water resources due to the exceptional reusability, photocatalytic effectiveness, and adaptability to environmentally friendly production.</p>

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Sustainable green synthesis of copper oxide nanoparticles with photocatalytic efficiency using seed extract of Strychnos potatorum. L

  • 期刊论文

  • 发表日期：

    2026年5月25日

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  • Ganesh Nagarathinam,
  • Babu Selvarajan,
  • Prakash Pandiyan,
  • Balaji Sethuraman,
  • Ambikapathy Varatharaju,
  • Gomathi Selvam,
  • Panneerselvam Annamalai

摘要

The present study focused on the production of copper oxide nanoparticles (CuO NPs) using a simple, cost-effective, environmentally friendly, and green synthesis method. Strychnos potatorum seed extract was used as a capping and reducing agent. UV-visible spectroscopy, FTIR spectroscopy, X-ray diffraction, Scanning electron microscope, Transmission electron microscopy, Energy Dispersive X-ray diffraction, and Brunauer-Emmett-Teller (BET) analysis were utilized to assess the physicochemical properties of CuO NPs. In addition, the photocatalytic efficiency of the synthesized particles was evaluated using Nile Blue (NB) and Reactive Yellow 160 (RY160) with the help of sunlight. The SEM results confirmed that the synthesized particles were monodisperse and quasi-spherical. The TEM images revealed an average particle size of 2–6 nm and the BET surface area was found to be 52.6 m2/g. The synthesized CuO NPs acted as catalysts for the removal of dyes from the water. 3 mg/L of biogenic CuO NPs facilitated 95% of NB removal after 2 h under sunlight. 8 mg/L of the synthesized CuO NPs displayed 80% of RY160 was degraded after 140 min of sunlight exposure. The specific innovation of this research is the utilization of S. potatorum, to synthesize CuO NPs. Biogenic CuO NPs might be used for the remediation of industrial dye-contaminated water resources due to the exceptional reusability, photocatalytic effectiveness, and adaptability to environmentally friendly production.