Adsorptive Denitrogenation of Fuels onto Mixed-Linker Metal Organic Frameworks (ML-MOF) and ML-MOF Derived Carbon-based Nanocomposites

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dc.authorid0000-0001-9643-4855
dc.contributor.authorBulut, Cagla
dc.contributor.authorTuter, Melek
dc.contributor.authorOzcelik, Gulsum
dc.contributor.authorCivan Cavusoglu, Ferda
dc.contributor.authorBayazit, Sahika Sena
dc.date.accessioned2026-01-31T15:08:12Z
dc.date.available2026-01-31T15:08:12Z
dc.date.issued2025
dc.departmentİstanbul Beykent Üniversitesi
dc.description.abstractThis study presents a comprehensive investigation into the preparation, characterization, and adsorption performance of mixed-linker UiO-67 (ML-UiO-67) and their carbon derivatives. ML-UiO-67 was synthesized via solvothermal methods using biphenyl 4,4'-dicarboxylic acid and terephthalic acid as organic linkers. Thermal treatments at 400 degrees C and 600 degrees C under nitrogen atmosphere yielded carbon-based nanocomposites (400 degrees C-2H-6H and 600 degrees C-2H-6H) with varying durations (2 and 6 h). The structures of synthesized materials were analyzed using thermogravimetric analysis (TGA), X-ray diffraction spectroscopy (XRD), scanning electron microscopy (SEM), and Fourier-transform infrared spectroscopy (FTIR), to interpret structural, thermal, and functional properties. The adsorption behavior of indole, a nitrogenous compound in model fuel, was assessed under varying parameters, including adsorbent quantity, temperature, initial indole concentration, and reaction time. Adsorption capacities were quantified, and kinetic and equilibrium isotherm equations were applied to elucidate adsorption mechanisms. The results showed rapid adsorption occur in the first 20 min, with adsorption equilibrium reached in 90-120 min. The pseudo-first-order kinetic model is appropriate for explaining the mechanism of adsorption process, indicating diffusion-controlled behavior. Dubinin-Radushkevich and Freundlich isotherms were successfully applied, highlighting multilayer adsorption and physical adsorption mechanisms. Among the tested adsorbents, 400 degrees C-2H exhibited the highest adsorption capacity (16.8 mg/g) at 1 mg dosage. Desorption experiments did not show promising results, only 600 degrees C-6H nanoparticles can desorb 59% of the adsorbed indole. The experimental results indicate important information on the design and use of ML-UiO-67 based adsorbents for effective adsorption of nitrogen-containing compounds in fuels.
dc.identifier.doi10.1007/s11270-025-08827-w
dc.identifier.issn0049-6979
dc.identifier.issn1573-2932
dc.identifier.issue3
dc.identifier.scopus2-s2.0-105022605948
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org./10.1007/s11270-025-08827-w
dc.identifier.urihttps://hdl.handle.net/20.500.12662/10621
dc.identifier.volume237
dc.identifier.wosWOS:001620936200002
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer Int Publ Ag
dc.relation.ispartofWater Air And Soil Pollution
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260128
dc.subjectDenitrogenation
dc.subjectAdsorption
dc.subjectIndole
dc.subjectMixed-linker MOFs
dc.subjectMOFs
dc.titleAdsorptive Denitrogenation of Fuels onto Mixed-Linker Metal Organic Frameworks (ML-MOF) and ML-MOF Derived Carbon-based Nanocomposites
dc.typeArticle

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