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Green, environmentally friendly synthesis of MnO Nanoparticles for corrosion inhibition in mild steel

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  • Paper ID
    gnest_05891
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    Published
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DOI
https://doi.org/10.30955/gnj.05891
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Abstract

This study uses green, environmentally friendly methods to synthesize manganese oxide nanoparticles (MnO-NPs) that can be applied on mild steel as a safe and eco-friendly material with corrosion inhibition attributes. Mukia madaraspatana leaf extract is effective in the green synthesis of Mno-NPs. Several critical parameters can influence the corrosion rate and inhibition efficiency of the MnO-NPs, including the dose of nanoparticles in parts per million (PPM), acid concentration, temperature, and exposure time. Response Surface Methodology-Box Behnken Design (RSM-BBD) was employed to optimize these parameters. An optimal dosage of 550 parts per million (ppm) of nanoparticles, an acid concentration of 0.9 M, a temperature of 37°C, and an exposure time of 3.2 hours resulted in an inhibition efficiency of 92.5%. It reduced the corrosion rate to 0.652 (mm/Y) in an independent validation run. These findings demonstrate that the environmentally friendly synthesized MnO-NPs have great potential as an anti-corrosive agent for mild steel.

Keywords
green synthesis Manganese oxide nanoparticles environmentally friendly process Response surface methodology corrosion inhibition.
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Cite this article
Rajasekar, V., Shyamala, M. and Aravind, J. (2024) “Green, environmentally friendly synthesis of MnO Nanoparticles for corrosion inhibition in mild steel”, Global NEST Journal, 26(6). Available at: https://doi.org/10.30955/gnj.05891.
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  • gnest_05891_final.pdf