Eco-Friendly Synthesis of Manganese Dioxide Nanoparticles for Degradation of Methyl Orange Dye

Abstract:

The present study explores the green conflation of manganese dioxide (MnO₂) nanoparticles through a simple, Eco-friendly, and cost-effective system. This conflation process involves the response of potassium permanganate with an waterless splint excerpt of Hibiscus rosa- sinensis, serving as both a reducing and stabilizing agent. The green conflation system is profitable as it avoids poisonous chemicals, making it safer for both the terrain and implicit operations. The synthesized MnO₂ nanoparticles were considerably characterized using colorful logical ways. X-ray diffraction (XRD) analysis was used to confirm the liquid structure, while Fourier- transfigure infrared (FT- IR) spectroscopy handed sapience into the functional groups present in the material. UV-Visible spectroscopy was employed to study the optic parcels and band gap of the synthesized nanoparticles. Morphological details were observed through Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM), which revealed the nanoparticles in globular shape and nanoscale size. One of the notable findings of this study is the photocatalytic effectiveness of the synthesized MnO₂ nanoparticles. Under visible light irradiation, these nanoparticles effectively degraded methyl orange color in waterless results, showcasing their eventuality as an effective photocatalyst. also, the synthesized MnO₂ nanoparticles demonstrated promising operations in the junking of organic adulterants from water, emphasizing their environmental significance. Overall, this study contributes to the development of sustainable nanomaterials for environmental remediation, particularly for wastewater treatment operations. The green conflation approach, combined with the excellent catalytic parcels of MnO₂ nanoparticles, underscores the material's eventuality for practical and large- scale operations.

• Periodical: Applied Mechanics and Materials (Volume 933)
• Pages: 33-40
• DOI: https://doi.org/10.4028/p-vKm4cn
• Online since: February 2026
• Authors: G. Sreekala*, R. Minitha
• Keywords: Green Synthesis, Hibiscus Rosa-Sinensis, Manganese Dioxide, Photocatalyst, Spherical

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