Musa Sapientum (Banana) Peels as Green Corrosion Inhibitor for Mild Steel

Abstract:

The inhibition efficiency of Musa sapientum (banana) peel extracts at different concentrations and temperatures on mild steel corrosion in acidic solution of 1 M hydrochloric acid (HCl) were investigated by using weight loss method. The banana peel extract concentrations were tested from 300 to 500 ppm at temperature range between 25°C to 60°C. The performance of banana peel extract as an inhibitor was found compatible in the tested solution. The corrosion rates, which were calculated from the weight loss data, showed that the inhibition efficiency of the extract increased from 86.9% to 89.0% as the concentration of banana peel extract increased from 300 ppm to 500 ppm. It was also observed that the inhibition efficiency decreased as the temperature was increased from 25°C to 60°C. Characterization of the peel extract by using gas chromatography-mass spectrometry (GC-MS) has detected the presence of bioactive compounds which are responsible for the corrosion inhibition and adsorption properties on mild steel surface. Eleven major compounds have been identified as having corrosion inhibition properties. FTIR analysis confirmed the presence of functional groups of alcohols, alkanes, carbonyls, aromatics, ethers, and esters that can prevent corrosion by adsorption on steel surface.

• Periodical: Key Engineering Materials (Volume 797)
• Pages: 230-239
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.797.230
• Online since: March 2019
• Authors: Nor Roslina Rosli*, Suriatie Mat Yusuf, Arina Sauki, Wan Muhamad Razlan Wan Razali
• Keywords: Banana Peel Extract, Corrosion Inhibitor, Hydrochloric Acid, Mild Steel, Weight Loss Test

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