A comprehensive new study on the removal of Pb (II) from aqueous solution by sirnak coal-derived char

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dc.authoridKUTLUAY, SINAN/0000-0001-9493-918X
dc.authoridKutluay, Sinan/0000-0002-4987-6789
dc.contributor.authorBatur, Ebru
dc.contributor.authorBaytar, Orhan
dc.contributor.authorKutluay, Sinan
dc.contributor.authorHoroz, Sabit
dc.contributor.authorSahin, Omer
dc.date.accessioned2024-12-24T19:28:12Z
dc.date.available2024-12-24T19:28:12Z
dc.date.issued2021
dc.departmentSiirt Üniversitesi
dc.description.abstractIn this study, char was prepared from the Sirnak coal derivative as a new adsorbent by the pyrolysis process and successfully applied for Pb (II) removal. Prepared char adsorbent was characterized by analysis techniques such as thermogravimetric (TG)/differential thermogravimetric (DTG), iodine number, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and Brunauer-Emmett-Teller (BET) surface area. In the experimental design of the Pb (II) removal process, the relationship between operating factors (contact time, initial Pb (II) concentration and temperature) and process responses (adsorption capacity and removal efficiency) was modelled by applying response surface methodology (RSM). After that, the operating factors for the maximum adsorption capacity and removal efficiency of Pb (II) by char were optimized. In the removal of Pb (II), pseudo-first order and pseudo-second order kinetic models were used to determine the process mechanism. In addition, adsorption isotherm models such as Langmuir, Freundlich, and Dubinin-Radushkevich were applied to the equilibrium data to explain the adsorption mechanism between the adsorbent and adsorbate molecules. According to the results obtained, it was determined that kinetic and equilibrium isotherm data were better defined with pseudo-second order kinetic and Dubinin-Radushkevich isotherm models, respectively. The optimum values of the contact time, initial Pb (II) concentration, and temperature for maximum adsorption capacity (124.64 mg/g) and removal efficiency (92.35%) of Pb (II) were found as 150.00 min, 144.81 ppm, and 35.06 degrees C, respectively. This study indicated the application potential of Sirnak coal-derived char as a promising cost-effective adsorbent for the removal of heavy metals.
dc.identifier.doi10.1080/09593330.2020.1811397
dc.identifier.endpage520
dc.identifier.issn0959-3330
dc.identifier.issn1479-487X
dc.identifier.issue3
dc.identifier.pmid32804581
dc.identifier.scopus2-s2.0-85089894556
dc.identifier.scopusqualityQ1
dc.identifier.startpage505
dc.identifier.urihttps://doi.org/10.1080/09593330.2020.1811397
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6952
dc.identifier.volume42
dc.identifier.wosWOS:000563407300001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofEnvironmental Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectCoal-derived char
dc.subjectisotherm
dc.subjectkinetics
dc.subjectmathematical modelling
dc.subjectPb (II) removal
dc.titleA comprehensive new study on the removal of Pb (II) from aqueous solution by sirnak coal-derived char
dc.typeArticle

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