Falcaria vulgaris leaves extract as an eco-friendly corrosion inhibitor for mild steel in hydrochloric acid media

Undoubtedly, metal corrosion is one of the most challenging problems faced by industries. Introducing corrosion inhibitors is a reasonable approach to protecting the metal surface. Due to environmental concerns and the toxicity of industrial organic corrosion inhibitors, researchers are continually...

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Bibliographic Details
Published in:Scientific reports 2023-03, Vol.13 (1), p.3737-3737, Article 3737
Main Authors: Alimohammadi, Mohammadreza, Ghaderi, Mohammad, Ramazani S.A., Ahmad, Mahdavian, Mohammad
Format: Article
Language:English
Subjects:
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Adsorption
Corrosion
Corrosion inhibitors
Electrochemistry
Humanities and Social Sciences
Hydrochloric acid
Isotherms
Metals
multidisciplinary
Science
Science (multidisciplinary)
Spectroscopy
Toxicity
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Summary:Undoubtedly, metal corrosion is one of the most challenging problems faced by industries. Introducing corrosion inhibitors is a reasonable approach to protecting the metal surface. Due to environmental concerns and the toxicity of industrial organic corrosion inhibitors, researchers are continually exploring acceptable replacements. The current study focused on the application of Falcaria Vulgaris (FV) leaves extract to mitigate mild steel (MS) corrosion in a 1 M HCl environment. The polarization findings demonstrated that the corrosion current density decreased from 264.0 µA/cm 2 (for the sample submerged in the blank solution) to 20.4 µA/cm 2 when the optimal concentration of 800 ppm of FV leaves extract was added to the acid solution. Electrochemical impedance spectroscopy (EIS) analysis revealed an inhibition efficiency of 91.3% at this concentration after 6 h of immersion. It was determined by analyzing several adsorption isotherms that this corrosion inhibitor obeys the Frumkin isotherm. AFM, FE-SEM, and GIXRD surface analyses also supported the findings that adding FV leaves extract can reduce metal damage by adsorption on the metal surface.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-023-30571-6