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<p>An important strategy that can aid in achieving the long-term goal of a pollution-free environment is the use of photocatalysis. This paper outlines the process of creating affordable, safe MnV<sub>2</sub>O<sub>6</sub> via a simple, cost-effective photocatalytic dye degradation technique. MnV<sub>2</sub>O<sub>6</sub> nanoparticles were synthesized by the combustion process using mustard seeds (<i>Brassica nigra</i>), a sustainable fuel. X-ray diffraction, Fourier transform infrared spectrophotometry, ultraviolet–visible diffuse reflectance (UV–Vis DRS) spectroscopy, scanning electron microscopy, and transmission electron spectroscopy were utilized for characterization of various ratios of photocatalysts. In terms of light deterioration, 1:0.5 MnV<sub>2</sub>O<sub>6</sub> outperformed the other ratios, with 86.73% of methylene blue dye degraded by MnV<sub>2</sub>O<sub>6</sub>. In addition, the effects of several variables on degradation were investigated, including catalyst dosage, pH, and ppm level. From the scavenging investigations, we found that the electrons are active species produced during photocatalysis.</p> Graphical Abstract <p></p>

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Biogenic Synthesis of MnV2O6 Nanoparticles Using Brassica nigra Seed Powder and Its Potential for Photocatalytic Degradation of Dyes

  • 期刊论文

  • 发表日期：

    2025年5月3日

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  • G. R. Gagana,
  • K. R. Pooja,
  • G. Venkatesha,
  • Fahad A. Alharthia,
  • J. Manjanna,
  • R. Harini,
  • B. Nagaraju,
  • Ganganagappa Nagaraju

摘要

An important strategy that can aid in achieving the long-term goal of a pollution-free environment is the use of photocatalysis. This paper outlines the process of creating affordable, safe MnV2O6 via a simple, cost-effective photocatalytic dye degradation technique. MnV2O6 nanoparticles were synthesized by the combustion process using mustard seeds (Brassica nigra), a sustainable fuel. X-ray diffraction, Fourier transform infrared spectrophotometry, ultraviolet–visible diffuse reflectance (UV–Vis DRS) spectroscopy, scanning electron microscopy, and transmission electron spectroscopy were utilized for characterization of various ratios of photocatalysts. In terms of light deterioration, 1:0.5 MnV2O6 outperformed the other ratios, with 86.73% of methylene blue dye degraded by MnV2O6. In addition, the effects of several variables on degradation were investigated, including catalyst dosage, pH, and ppm level. From the scavenging investigations, we found that the electrons are active species produced during photocatalysis.

Graphical Abstract