TY - JOUR
T1 - Glycogen nanoparticles as a potential corrosion inhibitor
AU - Pais, Mikitha
AU - George, Sajan D.
AU - Rao, Padmalatha
N1 - Funding Information:
Ms. Mikitha Pais is grateful to MAHE for the fellowship. The authors are thankful to the Department of Chemistry, MIT MAHE for lab facilities, Department of Atomic and Molecular Physics MAHE, Central Instrumentation Facilities MAHE, CRF NITK Suratkal, and IISER Thiruvananthapuram for extending required facilities. This study is funded by Manipal University (MAHE/DREG/PhD/IMF/2019).
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/7/1
Y1 - 2021/7/1
N2 - 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 evaluated 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.
AB - 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 evaluated 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.
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U2 - 10.1016/j.ijbiomac.2021.05.185
DO - 10.1016/j.ijbiomac.2021.05.185
M3 - Article
AN - SCOPUS:85107287151
SN - 0141-8130
VL - 182
SP - 2117
EP - 2129
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
ER -