Nitrogen- and oxygen-doped carbon particles produced from almond shells by hydrothermal method for efficient Pb(II) and Cd(II) adsorption

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dc.authoridSAKA, Cafer/0000-0003-2534-5921
dc.authoridTEGIN, IBRAHIM/0000-0002-5661-7195
dc.contributor.authorSaka, Cafer
dc.contributor.authorTegin, Ibrahim
dc.contributor.authorKahvecioglu, Kubra
dc.contributor.authorYavuz, Omer
dc.date.accessioned2024-12-24T19:25:05Z
dc.date.available2024-12-24T19:25:05Z
dc.date.issued2024
dc.departmentSiirt Üniversitesi
dc.description.abstractIn this study, a two-step method was applied to obtain an effective adsorbent for cadmium (Cd) (II) and lead (Pb)(II) adsorption. The first stage includes the production of activated carbon (AC) from almond shells, which is agricultural waste, by microwave heating and potassium hydroxide (KOH) chemical agent. The second stage includes nitrogen and oxygen doping by hydrothermal heating treatment of the obtained ACs with nitric acid. The obtained materials were characterized by thermogravimetric/differential thermal analyser (TG-DTA); Fourier transform infrared spectroscopy (FTIR); scanning electron microscope (SEM); energy-dispersive spectroscopy (EDS); C, H, N, S elemental analysis; and nitrogen adsorption analyses. The adsorption performance, mechanism, kinetics, and thermodynamics of nitrogen- and oxygen-doped activated carbons were evaluated. The obtained isotherm and kinetic results showed that the adsorption of Cd (II) and Pb (II) on nitrogen- and oxygen-doped ACs followed Langmuir isotherm and pseudo-second-order kinetics. The adsorption capacity values (Qm) obtained for Cd (II) and Pb (II) adsorption were 106.38 mg/g and 76.33 mg/g, respectively.
dc.description.sponsorshipSiirt University Scientific Research Coordinator [2021- SIUEFEB-022]
dc.description.sponsorshipSiirt University Scientific Research Coordinator supported this study. (2021- SIUEFEB-022)
dc.identifier.doi10.1007/s13399-023-03920-8
dc.identifier.endpage17480
dc.identifier.issn2190-6815
dc.identifier.issn2190-6823
dc.identifier.issue15
dc.identifier.scopus2-s2.0-85147677722
dc.identifier.scopusqualityQ2
dc.identifier.startpage17467
dc.identifier.urihttps://doi.org/10.1007/s13399-023-03920-8
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6244
dc.identifier.volume14
dc.identifier.wosWOS:000933834200003
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer Heidelberg
dc.relation.ispartofBiomass Conversion and Biorefinery
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectMicrowave pyrolysis
dc.subjectNitrogen and oxygen doping
dc.subjectCadmium
dc.subjectLead
dc.subjectAdsorption
dc.titleNitrogen- and oxygen-doped carbon particles produced from almond shells by hydrothermal method for efficient Pb(II) and Cd(II) adsorption
dc.typeArticle

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