Synthesis and characterization of magnetic ZnCl2-activated carbon produced from coconut shell for the adsorption of methylene blue

dc.authorid0000-0002-3728-1825en_US
dc.authorid0000-0002-9813-2962en_US
dc.authorscopusid56636946100en_US
dc.authorscopusid56250747600en_US
dc.authorwosidHJY-0697-2023en_US
dc.authorwosidABD-2324-2020en_US
dc.contributor.authorKaraer Yağmur, Hatice
dc.contributor.authorKaya, İsmet
dc.date.accessioned2025-02-10T07:55:24Z
dc.date.available2025-02-10T07:55:24Z
dc.date.issued2021en_US
dc.departmentFakülteler, Fen Fakültesi, Kimya Bölümüen_US
dc.description.abstractIn this research, a magnetic-activated carbon composite was synthesized to investigate its adsorption to methylene blue dye. Active carbon (ACz) was produced by ZnCl2 activation of coconut shell (char: ZnCl2, 2:1). Magnetic activated carbon (MACz) was prepared via an easy method by chemical co-precipitation of Fe3+/Fe2+. The pore diameter, pore-volume, and surface area of MACz were determined from N2 adsorption isotherms. The ACz and MACz were characterized by several techniques such as BET, SEM/EDX, FT-IR, XRF, VSM, TGA, and pHpzc analysis. The average particle size, particle size distribution, and zeta potential of MACz were determined by Zetasizer. The zero point charge of the MACz was determined as approximately 4.9 pH. Moreover, the adsorption by MACz was investigated as kinetically and thermodynamically for removal of methylene blue (MB) from aqueous solution. The kinetics and thermodynamic parameters were also calculated. According to the results, the adsorption process was determined as endothermic. The Langmuir and Freundlich isotherms models were used and it was found that adsorption of MB onto MACz best fitted to Freundlich model according to RMSE, SSE, and R2 values. The maximum adsorption capacity of the composite was calculated as 156.25 mg/g. Thermodynamic parameters (ΔHo, ΔGo, and ΔSo) were also calculated, which revealed that the adsorption process is spontaneous.en_US
dc.identifier.citationKaraer Yağmur, H. & İsmet, Kaya (2021). Synthesis and characterization of magnetic ZnCl2-activated carbon produced from coconut shell for the adsorption of methylene blue. Journal of Molecular Structure, 1232, 130071. https://doi.org/10.1016/j.molstruc.2021.130071en_US
dc.identifier.doi10.1016/j.molstruc.2021.130071en_US
dc.identifier.issn0022-2860 / 1872-8014
dc.identifier.scopus2-s2.0-85100775521en_US
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.molstruc.2021.130071
dc.identifier.urihttps://hdl.handle.net/20.500.12428/29602
dc.identifier.volume1232en_US
dc.identifier.wosWOS:000632858100012en_US
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorKaraer Yağmur, Hatice
dc.institutionauthorKaya, İsmet
dc.institutionauthorid0000-0002-3728-1825
dc.institutionauthorid0000-0002-9813-2962
dc.language.isoengen_US
dc.publisherElsevier B.V.en_US
dc.relation.ispartofJournal of Molecular Structureen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAdsorptionen_US
dc.subjectCoconut shellen_US
dc.subjectMethylene blueen_US
dc.subjectRMSEen_US
dc.subjectSSEen_US
dc.titleSynthesis and characterization of magnetic ZnCl2-activated carbon produced from coconut shell for the adsorption of methylene blueen_US
dc.typearticleen_US

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