Novel gossypol-indole modification as a green corrosion inhibitor for low-carbon steel in aggressive alkaline-saline solution

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dc.authoridDAGDAG, Omar/0000-0002-9723-1344
dc.authorid/0000-0003-0610-8218
dc.authoridGuo, Lei/0000-0001-7849-9583
dc.contributor.authorBerdimurodov, Elyor
dc.contributor.authorKholikov, Abduvali
dc.contributor.authorAkbarov, Khamdam
dc.contributor.authorGuo, Lei
dc.contributor.authorKaya, Savas
dc.contributor.authorKatin, Konstantin P.
dc.contributor.authorVerma, Dakeshwar Kumar
dc.date.accessioned2024-10-26T18:11:32Z
dc.date.available2024-10-26T18:11:32Z
dc.date.issued2022
dc.departmentSivas Cumhuriyet Üniversitesi
dc.description.abstractThe corrosion of low-carbon steel in aggressive alkaline-saline environments is a very large problem. Protecting low-carbon steel from corrosion in aggressive alkaline-saline solutions using green inhibitors is a very important task in industry. However, there are no studies related to low-carbon steel corrosion in aggressive alkaline-saline environments. Green type corrosion inhibitors are an interesting topic of research. However, currently, the studied type inhibitors are not efficient at low concentrations, and there are no studies on them in aggressive alkaline-saline environments in regard to steel corrosion. In this research work, a novel gossypol-indole modification (GIM) is introduced as a green corrosion inhibitor for low-carbon steel in an aggressive alkaline-saline environment. This inhibitor is a large, highly planar structural molecule that is more water soluble than other inhibitors. Its inhibition behavior is stable at high temperatures, and it contains a large number of electron-rich heteroatoms. All of these properties make it an excellent corrosion inhibitor. The inhibition performance of the novel gossypol-indole modification for low-carbon steel in 1 M NaOH + 1 M NaCl is fully characterized by thermodynamic, gravimetric, electrochemical frequency modulation (EFM), potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), density functional theory (DFT), molecular dynamics (MD) simulations, scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDX) methods. The results confirm that the novel gossypol-indole modification is an excellent inhibitor, with a maximum inhibition efficiency of 96.01% at 100 mg/L and 0.112 mM. The adsorption behavior follows the Langmuir isotherm. Electrochemical studies have indicated that this modified is a mixed-type corrosion inhibitor, and the theoretical investigations correlate well with the experimental results.
dc.description.sponsorshipNational Natural Science Foundation of China [21706195, 22062022]
dc.description.sponsorshipThe authors wish to acknowledge Ministry of Higher and Secondary Specialized Education of the Republic of Uzbekistan and Ministry of Innovative Development of the Republic of Uzbekistan, Tashkent, Uzbekistan, Tianjin University, Tianjin, China, Karshi State University, Karshi, Uzbekistan. This work was partially sponsored by the National Natural Science Foundation of China (21706195, 22062022) .
dc.identifier.doi10.1016/j.colsurfa.2021.128207
dc.identifier.issn0927-7757
dc.identifier.issn1873-4359
dc.identifier.scopus2-s2.0-85122582004
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.colsurfa.2021.128207
dc.identifier.urihttps://hdl.handle.net/20.500.12418/30718
dc.identifier.volume637
dc.identifier.wosWOS:000745072500006
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofColloids and Surfaces A-Physicochemical and Engineering Aspects
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectLow-carbon steel
dc.subjectCorrosion inhibitor
dc.subjectGossypol-indole modification
dc.subjectAlkaline-saline solution
dc.subjectDFT
dc.subjectMD simulation
dc.titleNovel gossypol-indole modification as a green corrosion inhibitor for low-carbon steel in aggressive alkaline-saline solution
dc.typeArticle

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