Inhibitory effect of expired glavox tablets on A36 carbon steel for optimized service life
This research delves into the potential of expired Glavox tablets, containing Amoxicillin and Clavulanic acid, as environmentally friendly substances to inhibit corrosion on A36 carbon steel in solutions of 1M HCl and 3.65 wt% NaCl. The findings from weight loss experiments in 1M HCl indicated a dec...
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IOP Publishing
2024-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ad94d4 |
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| author | Loveth Omomeji M K Onifade A O Onokwai J Atiba E Y Salawu O O Joseph |
| author_facet | Loveth Omomeji M K Onifade A O Onokwai J Atiba E Y Salawu O O Joseph |
| author_sort | Loveth Omomeji |
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| description | This research delves into the potential of expired Glavox tablets, containing Amoxicillin and Clavulanic acid, as environmentally friendly substances to inhibit corrosion on A36 carbon steel in solutions of 1M HCl and 3.65 wt% NaCl. The findings from weight loss experiments in 1M HCl indicated a decrease in the corrosion rate, dropping from 1.24 mm y ^−1 for untreated specimens to 0.17 mm y ^−1 for specimens treated with 7.5 ml of Glavox solution. Similarly, in the 3.65 wt% NaCl solution, the corrosion rate reduced from 0.98 mm y ^−1 to 0.23 mm y ^−1 with the same concentration of inhibitor. Electrochemical assessments conducted in the HCl medium unveiled alterations in the corrosion potential (E _corr ) from −0.48 V to −0.35 V, and a decline in the corrosion current density (i _corr ) from 3.2 mA cm ^−2 to 0.42 mA cm ^−2 , indicating a blend of inhibitory characteristics. Within the NaCl medium, E _corr transitioned from −0.45 V to −0.30 V, while i _corr decreased from 2.9 mA cm ^−2 to 0.57 mA cm ^−2 . Studies on adsorption affirmed the robust adsorption capacity of Glavox on the steel surface, aligning well with Langmuir, Freundlich, and Temkin isotherm models. The formation of a barrier of protection on the inhibited samples was revealed by SEM/EDS examination of the surface morphology. The outcomes propose that expired Glavox tablets exhibit efficacy as corrosion inhibitors in acidic and saline settings, attaining an inhibition efficiency of up to 86%, predominantly through adsorption and the formation of a protective film. |
| format | Article |
| id | doaj-art-155fe9ff08a04d09b75976e85cbc802c |
| institution | OA Journals |
| issn | 2053-1591 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-155fe9ff08a04d09b75976e85cbc802c2025-08-20T02:28:28ZengIOP PublishingMaterials Research Express2053-15912024-01-01111111550710.1088/2053-1591/ad94d4Inhibitory effect of expired glavox tablets on A36 carbon steel for optimized service lifeLoveth Omomeji0M K Onifade1A O Onokwai2J Atiba3https://orcid.org/0009-0006-8644-5909E Y Salawu4O O Joseph5https://orcid.org/0000-0002-7088-8055Department of Mechanical Engineering, Covenant University , P.M.B. 1023, Canaanland, Ota, Nigeria; Department of Mechanical Engineering, Bells University of Technology , Ota, NigeriaDepartment of Mechanical Engineering, Bells University of Technology , Ota, NigeriaDepartment of Mechanical Engineering, Bells University of Technology , Ota, NigeriaDepartment of Mechanical Engineering, Covenant University , P.M.B. 1023, Canaanland, Ota, NigeriaDepartment of Mechanical Engineering, Covenant University , P.M.B. 1023, Canaanland, Ota, NigeriaDepartment of Mechanical Engineering, Covenant University , P.M.B. 1023, Canaanland, Ota, NigeriaThis research delves into the potential of expired Glavox tablets, containing Amoxicillin and Clavulanic acid, as environmentally friendly substances to inhibit corrosion on A36 carbon steel in solutions of 1M HCl and 3.65 wt% NaCl. The findings from weight loss experiments in 1M HCl indicated a decrease in the corrosion rate, dropping from 1.24 mm y ^−1 for untreated specimens to 0.17 mm y ^−1 for specimens treated with 7.5 ml of Glavox solution. Similarly, in the 3.65 wt% NaCl solution, the corrosion rate reduced from 0.98 mm y ^−1 to 0.23 mm y ^−1 with the same concentration of inhibitor. Electrochemical assessments conducted in the HCl medium unveiled alterations in the corrosion potential (E _corr ) from −0.48 V to −0.35 V, and a decline in the corrosion current density (i _corr ) from 3.2 mA cm ^−2 to 0.42 mA cm ^−2 , indicating a blend of inhibitory characteristics. Within the NaCl medium, E _corr transitioned from −0.45 V to −0.30 V, while i _corr decreased from 2.9 mA cm ^−2 to 0.57 mA cm ^−2 . Studies on adsorption affirmed the robust adsorption capacity of Glavox on the steel surface, aligning well with Langmuir, Freundlich, and Temkin isotherm models. The formation of a barrier of protection on the inhibited samples was revealed by SEM/EDS examination of the surface morphology. The outcomes propose that expired Glavox tablets exhibit efficacy as corrosion inhibitors in acidic and saline settings, attaining an inhibition efficiency of up to 86%, predominantly through adsorption and the formation of a protective film.https://doi.org/10.1088/2053-1591/ad94d4carbon steelcorrosioninhibitionglavoxdrugseco-friendly |
| spellingShingle | Loveth Omomeji M K Onifade A O Onokwai J Atiba E Y Salawu O O Joseph Inhibitory effect of expired glavox tablets on A36 carbon steel for optimized service life Materials Research Express carbon steel corrosion inhibition glavox drugs eco-friendly |
| title | Inhibitory effect of expired glavox tablets on A36 carbon steel for optimized service life |
| title_full | Inhibitory effect of expired glavox tablets on A36 carbon steel for optimized service life |
| title_fullStr | Inhibitory effect of expired glavox tablets on A36 carbon steel for optimized service life |
| title_full_unstemmed | Inhibitory effect of expired glavox tablets on A36 carbon steel for optimized service life |
| title_short | Inhibitory effect of expired glavox tablets on A36 carbon steel for optimized service life |
| title_sort | inhibitory effect of expired glavox tablets on a36 carbon steel for optimized service life |
| topic | carbon steel corrosion inhibition glavox drugs eco-friendly |
| url | https://doi.org/10.1088/2053-1591/ad94d4 |
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