Issue |
E3S Web Conf.
Volume 543, 2024
International Process Metallurgy Conference (IPMC 2023)
|
|
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Article Number | 03003 | |
Number of page(s) | 9 | |
Section | Physical Metallurgy and Corrosion | |
DOI | https://doi.org/10.1051/e3sconf/202454303003 | |
Published online | 03 July 2024 |
Shrimp shell waste as a potential corrosion inhibitor for mild steel in acid solution
Department of Metallurgical Engineering, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia
* Corresponding author: bonita_metallurgy@itb.ac.id
Application of corrosion inhibitor is a common method to minimize corrosion reaction of steel in aqueous environments. Research for an effective eco-friendly corrosion inhibitor is required due to the toxicity issues of the most commercially available corrosion inhibitors. Many recent studies have shown that various food waste can be utilized as corrosion inhibitors. Extracting inhibitor compounds from food waste is definitely low cost, less harm, and environmentally beneficial. One example of corrosion inhibitor derived from food waste is a water-soluble chitosan (WSC) inhibitor, which can be extracted from Crustacean shells. This study used shrimp shell waste to extract WSC and test the effectiveness on inhibiting corrosion of mild steel in acid solution. The weight loss method was employed at various inhibitor concentrations and solution types. The overall findings in this study indicate that the WSC extracted from shrimp shell exhibits a good inhibition performance in 0.5 M HCl solution with the efficiency up to 94.31% at a concentration of 3 g/l at room temperature. Fourier Transform Infrared Spectroscopy and 2.2.7 UV-visible spectroscopy analysis showed that WSC molecules adsorbed on the steel surface and hinder the corrosion reactions.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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