Evaluation of Tectona Grandis Leaf Extract As A Green Corrosion Inhibitor for Aluminium in 1M NaOH

Open Access

Year : 2023 | Volume :02 | Issue : 02 | Page : 41-50
By

    D. Brindha

  1. B.R. Venkatraman

  1. Research Scholar, Thanthai Periyar Government Arts and Science College (Autonomous), Affiliated to Bharathidasan University, Tamil Nadu, India
  2. Associate Professor, Thanthai Periyar Government Arts and Science College (Autonomous), Affiliated to Bharathidasan University, Tamil Nadu, India

Abstract

A kind of tropical hardwood tree called the Tectona grandis tree that is indigenous to India. The name “teak tree” is another common name for this kind of tree. It is a member of the plant family that is referred to as Lamiaceae. The primary purpose of this research is to investigate whether or not the plant extract has a corrosion-inhibiting quality. In this study, an aqueous extract of Tectona grandis leaves, commonly known as TGLE, was employed as a corrosion inhibitor for aluminium (Al) in a solution of sodium hydroxide with a concentration of 1M. The sodium hydroxide solution was prepared by diluting 1M sodium hydroxide with 1M sodium hydroxide. Electrochemical methods, such as Potentiodynamic polarisation (PDP) and Electrochemical Impedance Spectroscopy (EIS), in addition to chemical methods, were used in this study to evaluate the inhibitory effects of this medication (weight loss). A promising inhibitory efficiency (IE) of 80% was achieved with TGLE when it was administered at an optimal dosage of 1.2 g/L; this was found to be consistent across all of the techniques that were used. The results of the trials were combined into an appropriate adsorption isotherm, which allowed for additional study into the inhibitor’s method of action to be carried out. In order to investigate the possible influence that temperature may have on the effectiveness of the inhibitor, a temperature range of 303 to 333 degrees Kelvin was investigated. An inquiry of the surface was carried out using microscopic metallurgical research, and the results of this study provided further support for the findings.

Keywords: Corrosion, Aluminium, Green inhibitor, NaOH, Tectona grandis, Teak

[This article belongs to Journal of Polymer and Composites(jopc)]

How to cite this article: D. Brindha, B.R. Venkatraman , Evaluation of Tectona Grandis Leaf Extract As A Green Corrosion Inhibitor for Aluminium in 1M NaOH jopc 2023; 02:41-50
How to cite this URL: D. Brindha, B.R. Venkatraman , Evaluation of Tectona Grandis Leaf Extract As A Green Corrosion Inhibitor for Aluminium in 1M NaOH jopc 2023 {cited 2023 Jan 14};02:41-50. Available from: https://journals.stmjournals.com/jopc/article=2023/view=91506

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https://doi.org/10.37591/JOPC.v10i2.91506


Regular Issue Open Access Article
Volume 02
Issue 02
Received August 17, 2022
Accepted September 16, 2022
Published January 14, 2023