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<p>With the rapid growth of industrial activities, water pollution caused by organic compounds like Congo red dye has become an increasingly serious issue. In this study we introduce an eco-friendly approach for deposition of Fe/Cu bimetallic oxide nanoparticles on to silica derived from rice husk. The resulting heterogeneous nanocatalyst was thoroughly characterized using XRD, SEM, EDX, FT-IR techniques and UV-visible spectroscopy. The synthesis and characterization of environmentally friendly bimetallic nanoparticles utilizing a green reducing agent and a stabilizer. These nanoparticles were subsequently applied for the removal of congo red dye (CR) from aqueous solutions. This method offers several advantages, including environmentally sustainable features, rapid reaction times, the use of non-explosive and easily manageable materials, quick separation, and a simple work-up process. Magnetic separation was employed to isolate the catalyst from the reaction mixture and demonstrated excellent reusability, maintaining its catalytic performance over several cycles without significant loss of efficiency.</p>

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Synthesis of iron/copper bimetallic oxide nanoparticles via green route for congo red dye degradation

  • 期刊论文

  • 发表日期：

    2025年9月26日

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  • P. V. Katkar,
  • K. V. Bhosale,
  • P. V. Chavan

摘要

With the rapid growth of industrial activities, water pollution caused by organic compounds like Congo red dye has become an increasingly serious issue. In this study we introduce an eco-friendly approach for deposition of Fe/Cu bimetallic oxide nanoparticles on to silica derived from rice husk. The resulting heterogeneous nanocatalyst was thoroughly characterized using XRD, SEM, EDX, FT-IR techniques and UV-visible spectroscopy. The synthesis and characterization of environmentally friendly bimetallic nanoparticles utilizing a green reducing agent and a stabilizer. These nanoparticles were subsequently applied for the removal of congo red dye (CR) from aqueous solutions. This method offers several advantages, including environmentally sustainable features, rapid reaction times, the use of non-explosive and easily manageable materials, quick separation, and a simple work-up process. Magnetic separation was employed to isolate the catalyst from the reaction mixture and demonstrated excellent reusability, maintaining its catalytic performance over several cycles without significant loss of efficiency.