Sulphur-doped carbon particles from almond shells as cheap adsorbent for efficient Cd(II) adsorption

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dc.authoridTEGIN, IBRAHIM/0000-0002-5661-7195
dc.contributor.authorSaka, Cafer
dc.contributor.authorTegin, Ibrahim
dc.contributor.authorKahvecioglu, Kubra
dc.date.accessioned2024-12-24T19:27:01Z
dc.date.available2024-12-24T19:27:01Z
dc.date.issued2023
dc.departmentSiirt Üniversitesi
dc.description.abstractOne of the ways to increase the adsorption capacity of carbon-based materials is to add heteroatoms. However, the use of sulphur-doped carbons is quite limited. This study includes the production of activated carbon (AC) from almond shells by microwave heating and KOH chemical agent and sulphur doping by hydrothermal heating treatment of the obtained ACs with sulphuric acid for Cd(II) adsorption. The thermogravimetric/differential thermal analyser (TG-DTA), Fourier transforms infrared spectroscopy (FTIR), scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and nitrogen adsorption analyses were performed for character-ization. For KOH-MA-S, the FTIR spectra peaks associated with the S--O stretching vibration appeared at approximately 1153 cm-1 and 1024 cm -1. The SEM image of the KOH + MA + S sample shows that a het-erogeneous and layered structure is formed again due to the collapse or coalescence of the pores with the hy-drothermal sulphuric acid activation on the carbonaceous surface. While there is almost no sulphur in the KOH-MA sample, there is approximately 9 % sulphur in the KOH-MA-S sample in the EDS results. The adsorption performance, kinetics, thermodynamics and mechanism for Cd(II) adsorption on sulphur doped ACs were evaluated. The isotherm and kinetic results showed that Cd(II) adsorption on sulphur-doped AC fits the Langmuir isotherm and pseudo-second-order kinetics with high correlation values. The adsorption capacity values (Qm) obtained for Cd(II) adsorption were 282.70 mg/g.
dc.description.sponsorshipSiirt University Scientific Research Unit; [2021-SIUFEB-022]
dc.description.sponsorshipSiirt University Scientific Research Unit supported this study (2021-SIUFEB-022) .
dc.identifier.doi10.1016/j.diamond.2022.109542
dc.identifier.issn0925-9635
dc.identifier.issn1879-0062
dc.identifier.scopus2-s2.0-85142479644
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.diamond.2022.109542
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6459
dc.identifier.volume131
dc.identifier.wosWOS:000895764500005
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Sa
dc.relation.ispartofDiamond and Related Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectMicrowave
dc.subjectPyrolysis
dc.subjectSulphur doping
dc.subjectCadmium
dc.subjectAdsorption
dc.titleSulphur-doped carbon particles from almond shells as cheap adsorbent for efficient Cd(II) adsorption
dc.typeArticle

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