Evaluation of adsorption and corrosion inhibition properties of Solanum Macrocarpon leaves extract on mild steel in sulphuric acid solutions

Abstract Corrosion of mild steel (MS) in industries has become a menace that has led to the use of organic green inhibitors from plant origin, which is seen as a cheap, eco-friendly substitute for inorganic inhibitors. This work employed Solanum macrocarpon (SM) methanol leaf extract as a green inhi...

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Main Authors: Stephen Ifeanyi Ezugha, Chiedozie Chukwuemeka Aralu
Format: Article
Language:English
Published: Springer 2023-12-01
Series:SN Applied Sciences
Subjects:
Online Access:https://doi.org/10.1007/s42452-023-05594-3
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author Stephen Ifeanyi Ezugha
Chiedozie Chukwuemeka Aralu
author_facet Stephen Ifeanyi Ezugha
Chiedozie Chukwuemeka Aralu
author_sort Stephen Ifeanyi Ezugha
collection DOAJ
description Abstract Corrosion of mild steel (MS) in industries has become a menace that has led to the use of organic green inhibitors from plant origin, which is seen as a cheap, eco-friendly substitute for inorganic inhibitors. This work employed Solanum macrocarpon (SM) methanol leaf extract as a green inhibitor using a gravimetric method at 303–323 K, respectively. The phytochemical screening was done using standard methods to identify the phytochemical compounds in the leave extract. The Fourier transform infrared (FTIR) analysis was also done to elucidate the functional groups that contain heteroatoms responsible for the inhibition efficiency. The effectiveness of the inhibition efficiency increased with concentration and decreased with rising temperature. The results demonstrated that Solanum macrocarpon leaf methanol extract is an effective mild steel corrosion inhibitor in 0.5 M H2SO4. 95% optimum inhibition efficiency (I.E) was observed at 0.5% w/v concentration for 303 K. The inhibition potential was attributed to the phytochemical compounds in the leaf extract, which contain polar functional groups and hetero-atoms in their structures. The $${E}_{a}$$ E a and $$\Delta {G}_{ads}$$ Δ G ads showed that the adsorption mechanism followed physisorption. The results showed the potential use of SM methanol extract as a corrosion inhibitor in mild steel, which can decrease corrosion in industries.
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spelling doaj.art-b9d05db3682e42f1bb82559bf0e9c52f2023-12-10T12:28:11ZengSpringerSN Applied Sciences2523-39632523-39712023-12-0151211210.1007/s42452-023-05594-3Evaluation of adsorption and corrosion inhibition properties of Solanum Macrocarpon leaves extract on mild steel in sulphuric acid solutionsStephen Ifeanyi Ezugha0Chiedozie Chukwuemeka Aralu1Department of Pure and Industrial Chemistry, Nnamdi Azikiwe UniversityDepartment of Pure and Industrial Chemistry, Nnamdi Azikiwe UniversityAbstract Corrosion of mild steel (MS) in industries has become a menace that has led to the use of organic green inhibitors from plant origin, which is seen as a cheap, eco-friendly substitute for inorganic inhibitors. This work employed Solanum macrocarpon (SM) methanol leaf extract as a green inhibitor using a gravimetric method at 303–323 K, respectively. The phytochemical screening was done using standard methods to identify the phytochemical compounds in the leave extract. The Fourier transform infrared (FTIR) analysis was also done to elucidate the functional groups that contain heteroatoms responsible for the inhibition efficiency. The effectiveness of the inhibition efficiency increased with concentration and decreased with rising temperature. The results demonstrated that Solanum macrocarpon leaf methanol extract is an effective mild steel corrosion inhibitor in 0.5 M H2SO4. 95% optimum inhibition efficiency (I.E) was observed at 0.5% w/v concentration for 303 K. The inhibition potential was attributed to the phytochemical compounds in the leaf extract, which contain polar functional groups and hetero-atoms in their structures. The $${E}_{a}$$ E a and $$\Delta {G}_{ads}$$ Δ G ads showed that the adsorption mechanism followed physisorption. The results showed the potential use of SM methanol extract as a corrosion inhibitor in mild steel, which can decrease corrosion in industries.https://doi.org/10.1007/s42452-023-05594-3Solanum macrocarponCorrosionMild steelAdsorptionInhibitors
spellingShingle Stephen Ifeanyi Ezugha
Chiedozie Chukwuemeka Aralu
Evaluation of adsorption and corrosion inhibition properties of Solanum Macrocarpon leaves extract on mild steel in sulphuric acid solutions
SN Applied Sciences
Solanum macrocarpon
Corrosion
Mild steel
Adsorption
Inhibitors
title Evaluation of adsorption and corrosion inhibition properties of Solanum Macrocarpon leaves extract on mild steel in sulphuric acid solutions
title_full Evaluation of adsorption and corrosion inhibition properties of Solanum Macrocarpon leaves extract on mild steel in sulphuric acid solutions
title_fullStr Evaluation of adsorption and corrosion inhibition properties of Solanum Macrocarpon leaves extract on mild steel in sulphuric acid solutions
title_full_unstemmed Evaluation of adsorption and corrosion inhibition properties of Solanum Macrocarpon leaves extract on mild steel in sulphuric acid solutions
title_short Evaluation of adsorption and corrosion inhibition properties of Solanum Macrocarpon leaves extract on mild steel in sulphuric acid solutions
title_sort evaluation of adsorption and corrosion inhibition properties of solanum macrocarpon leaves extract on mild steel in sulphuric acid solutions
topic Solanum macrocarpon
Corrosion
Mild steel
Adsorption
Inhibitors
url https://doi.org/10.1007/s42452-023-05594-3
work_keys_str_mv AT stephenifeanyiezugha evaluationofadsorptionandcorrosioninhibitionpropertiesofsolanummacrocarponleavesextractonmildsteelinsulphuricacidsolutions
AT chiedoziechukwuemekaaralu evaluationofadsorptionandcorrosioninhibitionpropertiesofsolanummacrocarponleavesextractonmildsteelinsulphuricacidsolutions