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

Basit Öğe Kaydı
dc.authorid0000-0002-3728-1825en_US
dc.contributor.authorYağmur, Hatice Karaer
dc.contributor.authorKaya, İsmet
dc.date.accessioned2022-06-23T06:54:13Z
dc.date.available2022-06-23T06:54:13Z
dc.date.issued2021en_US
dc.departmentDicle Üniversitesi, Fen Fakültesi, Kimya Bölümüen_US
dc.descriptionWOS:000632858100012
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 N-2 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 R-2 values. The maximum adsorption capacity of the composite was calculated as 156.25 mg/g. Thermodynamic parameters (Delta H degrees, Delta G degrees, and Delta S degrees) were also calculated, which revealed that the adsorption process is spontaneous. (C) 2021 Elsevier B.V. All rights reserved.en_US
dc.identifier.citationYağmur, H.K. ve Kaya, İ. (2021). Synthesis and characterization of magnetic ZnCl2-activated carbon produced from coconut shell for the adsorption of methylene blue. Journal of Molecular Structure, 1232, 1-12.en_US
dc.identifier.doi10.1016/j.molstruc.2021.130071
dc.identifier.endpage12en_US
dc.identifier.issn0022-2860
dc.identifier.issn1872-8014
dc.identifier.scopus2-s2.0-85100775521
dc.identifier.scopusqualityQ1
dc.identifier.startpage1en_US
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0022286021002027?via%3Dihub
dc.identifier.urihttps://hdl.handle.net/11468/10061
dc.identifier.volume1232en_US
dc.identifier.wosWOS:000632858100012
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorYağmur, Hatice Karaer
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal of Molecular Structure
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCoconut shellen_US
dc.subjectMethylene blueen_US
dc.subjectAdsorptionen_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.titleSynthesis and characterization of magnetic ZnCl2-activated carbon produced from coconut shell for the adsorption of methylene blue
dc.typeArticleen_US

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