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<p>Water pollution is one of the threats to sustainable development. The discharge of dyes in water bodies disturbs not only aquatic life but also human sustenance. In the present work, we synthesized cuprous oxide (Cu<sub>2</sub>O) nanoparticles using the wet chemical reduction method in which we reduced Cu(NO<sub>3</sub>)<sub>2</sub>·3H<sub>2</sub>O using EG and DEG to mitigate the water pollution caused by MO, and studied the implications of solvents on the properties of nanoparticles. The prepared Cu<sub>2</sub>O was characterized using a scanning electron microscope, x-ray diffraction diffractometer, UV-Vis spectroscopy, and X-ray photoelectron spectroscopy. The findings confirm that using DEG, Cu<sub>2</sub>O has a spherical morphology, which is an assembly of tiny crystallites together, showing higher photocatalytic activity than the cubic morphology of Cu<sub>2</sub>O in EG medium. Under the irradiation of sunlight, 0.1gm Cu<sub>2</sub>O spheres can degrade 95% of the MO solution (100mL), maintaining the MO level at 100 parts per million in 2&#xa0;h. Thus, Photocatalytic degradation using Cu<sub>2</sub>O nanoparticles is a suitable method for removing methyl orange from water bodies, contributing to creating a safe and sustainable environment.</p> Graphical abstract <p></p>

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Polyol synthesized cuprous oxide microstructures as an efficient photocatalyst for dye degradation

  • 期刊论文

  • 发表日期：

    2025年9月18日

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  • Jasmine F. Bhaldar,
  • Tejas S. Narale,
  • Sarfraj H. Mujawar,
  • Gurudas P. Mane,
  • Bhushan B. Dhale,
  • Shubham D. Jituri

摘要

Water pollution is one of the threats to sustainable development. The discharge of dyes in water bodies disturbs not only aquatic life but also human sustenance. In the present work, we synthesized cuprous oxide (Cu2O) nanoparticles using the wet chemical reduction method in which we reduced Cu(NO3)2·3H2O using EG and DEG to mitigate the water pollution caused by MO, and studied the implications of solvents on the properties of nanoparticles. The prepared Cu2O was characterized using a scanning electron microscope, x-ray diffraction diffractometer, UV-Vis spectroscopy, and X-ray photoelectron spectroscopy. The findings confirm that using DEG, Cu2O has a spherical morphology, which is an assembly of tiny crystallites together, showing higher photocatalytic activity than the cubic morphology of Cu2O in EG medium. Under the irradiation of sunlight, 0.1gm Cu2O spheres can degrade 95% of the MO solution (100mL), maintaining the MO level at 100 parts per million in 2 h. Thus, Photocatalytic degradation using Cu2O nanoparticles is a suitable method for removing methyl orange from water bodies, contributing to creating a safe and sustainable environment.

Graphical abstract