Abstract
As part of promoting eco-friendly research & development, corrosion chemistry encourages green inhibitors for metal corrosion prevention. Thespesia Linoleic acid, n-Hexadecanoic acid, trans-Squalene, Phytol were identified as the active components responsible for corrosion inhibition. The optimum concentration of 500 ppm could deliver protection with efficiency in the range of 97%–98%. Additionally, we extended the study to evaluate the extract’s capability for its use in the paint industry. The remarkable potential of the TiO2-TP composite coating thus developed was illustrated by physico-chemical, electrochemical, and surface analyses. According to the electrochemical impedance spectroscopy (EIS) study, the applied leaf extract loaded coatings resist corrosion of CS at efficiencies of 97.9%, 91.6%, and 98.5% in 1 M HCl, 1 M HCl at 80 °C, and rainwater mediums, respectively. The proposed composite coating is undoubtedly promising for industrial application and is also recommended by green protocols.
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All the data discussed are directly presented in tables and in graphical form in the manuscript and therefore they are immediately accessible.
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Acknowledgement
We acknowledge Department of Chemistry, Amrita School of Arts &Sciences, Amrita Vishwa Vidyapeetham, Amritapuri and Department of Chemistry, University of Kerala for supporting us by providing the lab and technical facilities.
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Athira Krishnan: Conceptualization, Resources, Writing — original draft, Writing — review & editing
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Exploration of anti-corrosive activity of TP (thespesia populnea)-TiO2 composite coating for mild steel (CS) in aggressive environments
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Krishnan, A. Exploration of anti-corrosive activity of TP (thespesia populnea)-TiO2 composite coating for mild steel (CS) in aggressive environments. Korean J. Chem. Eng. 39, 2861–2874 (2022). https://doi.org/10.1007/s11814-022-1158-4
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DOI: https://doi.org/10.1007/s11814-022-1158-4