Glycogen nanoparticles as a potential corrosion inhibitor

Pais, Mikitha and Geroge, Sajan D and Padmalatha, * (2021) Glycogen nanoparticles as a potential corrosion inhibitor. International Journal of Biological Macromolecules, 182. pp. 2117-2129. ISSN 0141-8130

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Abstract

Biological macromolecules are proven to be potential green corrosion inhibitors because of their outstanding structural features and eco-friendliness. This study is aimed at enhancing their corrosion mitigation capabilities by converting them into nanoparticles. This is the first work where nanoparticles of biological macromolecules are exploited for corrosion mitigation studies. Glycogen nanoparticles (GLY-Np) were synthesized by microwave�mediated nanoprecipitation method and characterized by ATR–FTIR, XRD, UV–Visible Spectroscopy, FESEM analysis, EDX, TEM, and Zeta potential measurements. They are used as an eco-friendly inhibitor for corrosion control of zinc in sulfamic acid (NH2SO3H). The electrochemical study was a primary experimental tool employed for corrosion rate measurement. Conditions were optimized to obtain maximum inhibition efficiency by varying concentrations of inhibitor and temperature. Activation and thermodynamic parameters were eval�uated and discussed in detail. A suitable adsorption isotherm was proposed to fit the experimental results. Adsorption of the inhibitor was confirmed by SEM, EDX, and AFM techniques. The inhibition efficiency of 92% was obtained for 0.02 gL− 1 GLY-Np. Thus, GLY-Np turned out to be an effective green inhibition with economic benefits

Item Type: Article
Uncontrolled Keywords: Glycogen Nanoparticles Electrochemical approach
Subjects: Engineering > MIT Manipal > Chemistry
Depositing User: MIT Library
Date Deposited: 11 Aug 2021 09:51
Last Modified: 11 Aug 2021 09:51
URI: http://eprints.manipal.edu/id/eprint/157101

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