Oxygen plasma treated petroleum coke adsorbent: characterization, synthesis, mechanism, and application for enhancement of malachite green removal

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dc.contributor.authorSaka, Cafer
dc.contributor.authorOlcenoglu, Gulten Elci
dc.contributor.authorSahin, Omer
dc.date.accessioned2024-12-24T19:28:06Z
dc.date.available2024-12-24T19:28:06Z
dc.date.issued2023
dc.departmentSiirt Üniversitesi
dc.description.abstractThe main purpose of this study is to modify the petroleum coke sample (PCS) for the first time by oxygen plasma treatment (OPT) as an alternative to the existing surface modification methods and to remove the malachite green (MG) colourant from the aqueous medium with the obtained adsorbent. The changes caused by OPT on the PCS surface were observed with photoelectron spectroscopy(XPS), infrared spectroscopy(FTIR), scanning electron microscopy(SEM) and surface area analysis. The atomic percentages of the oxygen for the raw and plasma treated sample were found at 4.021% and 9.363%, respectively. In the light of the obtained results, it was seen that new active groups containing oxygen on PCS increased by OPT. The functional groups such as -COOH, -C-O and -C = O with oxygen plasma on PCS were interpreted to the mechanism possible. The adsorption capacity of MG was 66.66 mg/g at 30 degrees C for the PCS treated with oxygen plasma. The Delta G, Delta H and Delta S values were 168.76 kJ/mol, 84,49 kJ/mol and -278,19 J/mol K.
dc.description.sponsorshipSiirt University Research Foundation [2017-SIUFEB-96]
dc.description.sponsorshipThis study was supported by Siirt University Research Foundation (2017-SIUFEB-96).
dc.identifier.doi10.1080/03067319.2021.1873305
dc.identifier.endpage1202
dc.identifier.issn0306-7319
dc.identifier.issn1029-0397
dc.identifier.issue5
dc.identifier.scopus2-s2.0-85099542841
dc.identifier.scopusqualityQ1
dc.identifier.startpage1186
dc.identifier.urihttps://doi.org/10.1080/03067319.2021.1873305
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6926
dc.identifier.volume103
dc.identifier.wosWOS:000608908700001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofInternational Journal of Environmental Analytical Chemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectAdsorption
dc.subjectmodification
dc.subjectmalachite green Petroleum coke
dc.subjectoxygen plasma
dc.titleOxygen plasma treated petroleum coke adsorbent: characterization, synthesis, mechanism, and application for enhancement of malachite green removal
dc.typeArticle

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