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<p>In this work, we developed a cost-effective and eco-friendly&#xa0;strategy to synthesize nickel oxide nanoparticles (NiO NPs) using <i>Dypsis lutescens</i> leaves extract, which is an alternative to conventional chemical procedures. FTIR (Ni–O bond vibrations), XRD (average crystallite size: 16.50&#xa0;nm), SEM (interconnected and somewhat agglomerated particles), EDX (existence of Ni and O) and UV–Vis spectroscopy (absorption peak at 285&#xa0;nm) confirmed the&#xa0;synthesis of NiO NPs. The distinctive feature of this work is the successful photocatalytic degradation of Red ME4BL dye&#xa0;by using NiO NPs, achieved by&#xa0;using two different light sources: sunlight (pH 4, 9&#xa0;mg catalyst, 10&#xa0;ppm dye, 300&#xa0;min) and tungsten lamp (pH 6, 15&#xa0;mg catalyst, 15&#xa0;ppm dye, 300&#xa0;min). The remarkable dye removal effectiveness of the NPs indicated their promising role for wastewater treatment. The findings of this study demonstrated the potential of using these green-mediated NiO-NPs as an eco-friendly and cost-effective tool for the removal of reactive dyes from wastewater.</p>

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Bio-Synthesized Nickel Oxide Nanoparticles from Dypsis lutescens: Optimized Photocatalytic Decolorization of Red ME4BL Dye under Sunlight/Tungsten Illumination

  • 期刊论文

  • 发表日期：

    2025年7月1日

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  • Shumaisa Anwar,
  • Komal Rizwan,
  • Shahid Munir,
  • Shahzad Maqsood Khan,
  • Salah Knani,
  • Ahmad Asimov,
  • Shahid Iqbal,
  • Sajid Mahmood,
  • Shaimaa A. M. Abdelmohsen,
  • Randa A. Althobiti

摘要

In this work, we developed a cost-effective and eco-friendly strategy to synthesize nickel oxide nanoparticles (NiO NPs) using Dypsis lutescens leaves extract, which is an alternative to conventional chemical procedures. FTIR (Ni–O bond vibrations), XRD (average crystallite size: 16.50 nm), SEM (interconnected and somewhat agglomerated particles), EDX (existence of Ni and O) and UV–Vis spectroscopy (absorption peak at 285 nm) confirmed the synthesis of NiO NPs. The distinctive feature of this work is the successful photocatalytic degradation of Red ME4BL dye by using NiO NPs, achieved by using two different light sources: sunlight (pH 4, 9 mg catalyst, 10 ppm dye, 300 min) and tungsten lamp (pH 6, 15 mg catalyst, 15 ppm dye, 300 min). The remarkable dye removal effectiveness of the NPs indicated their promising role for wastewater treatment. The findings of this study demonstrated the potential of using these green-mediated NiO-NPs as an eco-friendly and cost-effective tool for the removal of reactive dyes from wastewater.