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Studying effect of plantain extract behavior as an eco-friendly corrosion inhibitor on the mild steel in 1 M HCl solution

Moosa Es’haghi (Department of Chemistry, Islamic Azad University Tabriz Branch, Tabriz, Iran)
Amirhossein Amjad (Department of Chemistry, Islamic Azad University Tabriz Branch, Tabriz, Iran)
Sorayya Asghari (Department of Chemistry, Islamic Azad University Tabriz Branch, Tabriz, Iran)
Ali Lotfi (Young Researchers and Elite Club, Islamic Azad University Tabriz Branch, Tabriz, Iran)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 16 May 2018

Issue publication date: 22 June 2018

134

Abstract

Purpose

Corrosion inhibitors most commonly are used in the acid pickling, cleaning and etching solutions. Plant extracts as rich and cheap resources are among the eco-friendly inhibitors. This study aims to investigate the inhibition effect of plantain extract on mild steel corrosion.

Design/methodology/approach

The inhibition influence of plantain extract on mild steel corrosion was investigated through Tafel polarization, electrochemical impedance spectroscopy and weight loss techniques in 1 M HCl solution. Furthermore, the sample surface morphology was verified by scanning electron microscopy.

Findings

The inhibition effect of the plantain extract was increased with the increase in the inhibitor concentration due to its adsorption on the surface of samples. The adsorption mechanism of the plantain extract on mild steel is physical adsorption and follows Langmuir isotherm.

Originality/value

The results obtained from different methods showed that the plantain extract has good inhibition performance on corrosion mild steel in 1 M HCl solution as a green inhibitor.

Keywords

Acknowledgements

The authors would like to thank Tabriz Branch, Islamic Azad University for the financial support of this research.

Citation

Es’haghi, M., Amjad, A., Asghari, S. and Lotfi, A. (2018), "Studying effect of plantain extract behavior as an eco-friendly corrosion inhibitor on the mild steel in 1 M HCl solution", Anti-Corrosion Methods and Materials, Vol. 65 No. 3, pp. 310-316. https://doi.org/10.1108/ACMM-10-2017-1857

Publisher

:

Emerald Publishing Limited

Copyright © 2018, Emerald Publishing Limited

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