Isotherm and Thermodynamic Studies on the Removal of Gelatin-Stabilized Silver Nanoparticles from Water by Activated Carbon

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dc.contributor.authorCeryan, A.
dc.contributor.authorEltugral, N.
dc.date.accessioned2024-09-29T16:16:27Z
dc.date.available2024-09-29T16:16:27Z
dc.date.issued2022
dc.departmentKarabük Üniversitesien_US
dc.description.abstractGelatin-stabilized silver nanoparticles (AgNPs) with a particle size of 6.9 (±3.2) nm were synthesized and employed in nanoparticle adsorption onto activated carbon (AC). Subsequently, the synthesized AgNPs and the adsorbed nanoparticles onto the AC (AgNP@AC) were characterized by various techniques including UV–Vis spectrophotometry, transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT–IR) and X–ray diffraction (XRD). AgNPs possessed colloidal stability at a wide pH interval ranging between 4 and 13. Adsorption was studied batch-wise as a function of initial nanoparticle concentration (4–14 mg L-1), temperature (298–323 K), pH (4–13) and adsorbent dosage (0.01–0.05 g). Adsorption isotherms were investigated by fitting the data to different isotherm models including Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich (D–R). Error analysis indicated that the adsorption is well described by the Langmuir model with a monolayer adsorption capacity of 10.36 mg g-1 for 0.05 g AC at pH 7 and 323 K. Thermodynamic parameters such as enthalpy (66.77 kJ mol-1), entropy (232.92 J mol-1 K-1), and Gibbs free energy (–8.31 kJ mol-1) indicated that the process is endothermic, favorable and spontaneous through physical interactions. © 2022, Turkish Chemical Society. All rights reserved.en_US
dc.description.sponsorshipKarabük Üniversitesi, (16/1-DS-245)en_US
dc.identifier.doi10.18596/jotcsa.1098891
dc.identifier.endpage938en_US
dc.identifier.issn2149-0120
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85137368085en_US
dc.identifier.scopusqualityQ4en_US
dc.identifier.startpage919en_US
dc.identifier.trdizinid1116542en_US
dc.identifier.urihttps://doi.org/10.18596/jotcsa.1098891
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/1116542
dc.identifier.urihttps://hdl.handle.net/20.500.14619/9093
dc.identifier.volume9en_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.publisherTurkish Chemical Societyen_US
dc.relation.ispartofJournal of the Turkish Chemical Society, Section A: Chemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectactivated carbonen_US
dc.subjectAdsorptionen_US
dc.subjectadsorption isothermsen_US
dc.subjectsilver nanoparticlesen_US
dc.subjectthermodynamic parametersen_US
dc.titleIsotherm and Thermodynamic Studies on the Removal of Gelatin-Stabilized Silver Nanoparticles from Water by Activated Carbonen_US
dc.typeArticleen_US

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