Inhibitory mechanism of mild steel corrosion in 2M sulphuric acid solution by methylene blue dye

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dc.contributor.authorOguzie, E. E.
dc.contributor.authorOnuoha, G. N.
dc.contributor.authorOnuchukwu, A. I.
dc.date.accessioned2024-10-29T10:15:58Z
dc.date.available2024-10-29T10:15:58Z
dc.date.issued2005
dc.descriptionThe article contains tables and figures
dc.description.abstractMethylene blue dye (MB) was investigated as a corrosion inhibitor for mild steel in 2M sulphuric acid solution using gravimetric and thermometric techniques. The inhibition efficiency of MB increased with concentration and synergistically increased in the presence of the halide additives, namely KCl, KBr and KI. The trend of inhibition efficiency with temperature suggests that inhibitor molecules are physically adsorbed on the corroding metal surface at lower concentration (0.01–0.5mM), and chemically adsorbed at higher concentration (1.0–5.0 mM). These results were further corroborated by kinetic and activation parameters for corrosion and adsorption processes evaluated from experimental data at the temperatures studied. MB was found to obey Langmuir and Frumkin adsorption isotherms in the concentration range investigated
dc.identifier.citationOguzie, E. E., Onuoha, G. N. & Onuchukwu, A. I. (2005). Inhibitory mechanism of mild steel corrosion in 2M sulphuric acid solution by methylene blue dye. Materials Chemistry and Physics 89(2-3), 305 - 311
dc.identifier.doihttps://doi.org/10.1016/j.matchemphys.2004.09.004
dc.identifier.issn0254-0584
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S025405840400433X
dc.identifier.urihttps://repository.futo.edu.ng/handle/20.500.14562/1413
dc.language.isoen
dc.publisherElsevier Ltd
dc.rightsAttribution-NonCommercial-ShareAlike 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subjectMild steel
dc.subjectmethylene blue
dc.subjectinhibition efficiency
dc.subjectphysisorption
dc.subjectchemisorption
dc.subjectadsorption isotherm
dc.subjectDepartment of Chemistry
dc.titleInhibitory mechanism of mild steel corrosion in 2M sulphuric acid solution by methylene blue dye
dc.typeArticle

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