Citation
Abstract
Cassava peel powder (CPP) was utilized as a green corrosion inhibitor to reduce the mild steel (MS) corrosion rate (Rc) in acidic media. The weight-loss method was employed to investigate the Rc and inhibition efficiency (IE) of the mild steel specimen in uninhibited and inhibited 1.0 M HCl solution with CPP dosages of 0.2, 0.4, 0.6, 0.8 and 1.0 g for a set amount of immersion times ranging from 24 to 120 hours. Results show that the inhibitive performance of CPP increased as the inhibitor dosages increased from 0.2 to 1.0 g but decreased with a rise in immersion time, inferring that longer immersion time is unfavorable. CPP dosage of 1.0 g attained the highest inhibition efficiency of 86.77% after 24 hours immersion time. Optimization study via Response Surface Methodology (RSM) demonstrates that the optimum conditions are estimated at 1.0 g CPP dosage and 57 hours immersion period, with an efficiency of 87.20%. The thermodynamic analysis revealed that the inhibition process is spontaneous and obeyed Langmuir isotherm, and the mechanism of inhibition inclined towards chemisorption.
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Official URL or Download Paper: http://jase.tku.edu.tw/articles/jase-202302-26-2-0...
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Additional Metadata
Item Type: | Article |
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Divisions: | Faculty of Engineering Institut Nanosains dan Nanoteknologi |
DOI Number: | https://doi.org/10.6180/jase.202302_26(2).0013 |
Publisher: | Tamkang University Press |
Keywords: | Acid corrosion; Mild steel; Cassava peel powder; Green corrosion inhibitor |
Depositing User: | Ms. Nur Faseha Mohd Kadim |
Date Deposited: | 17 Aug 2023 07:34 |
Last Modified: | 17 Aug 2023 07:34 |
Altmetrics: | http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.6180/jase.202302_26(2).0013 |
URI: | http://psasir.upm.edu.my/id/eprint/100819 |
Statistic Details: | View Download Statistic |
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