Modification of biomass-derived activated carbon with magnetic alpha-Fe2O3 nanoparticles for CO2 and CH4 adsorption

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dc.authorid0000-0001-8838-2274
dc.contributor.authorKırbıyık, Çisem.
dc.date.accessioned2020-03-26T20:15:14Z
dc.date.available2020-03-26T20:15:14Z
dc.date.issued2019
dc.departmentSelçuk Üniversitesi, Mühendislik Fakültesi, Kimya Mühendisliği Bölümüen_US
dc.description.abstractMagnetic and nonmagnetic activated carbons (ACs) were successfully prepared by using AC obtained from spent coffee grounds (SCGs) for use in CO2 and CH4 capture. SCGs were activated by chemical activation to produce ACs and a magnetic alpha-Fe2O3 /AC composite was prepared by coprecipitation method from the ACs produced. Magnetic and nonmagnetic samples were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy dispersive X-ray spectrometry (EDX) techniques. The textural properties of samples were determined by nitrogen adsorption-desorption using the Brunauer-Emmett-Teller (BET) and Barrett-Joyner-Halenda (BJH) methods. The results showed that the porosity of AC was not blocked by alpha-Fe2O3 particles. According to adsorption-desorption experiments, the best results were obtained with the magnetic alpha-Fe2O3/AC sample (1.68 mmol g(-1) for CO2 and 0.65 mmol g(-1) for CH4) at 0 degrees C and 120 kPa. Adsorption performances were evaluated using four isotherm models. The isosteric heats of adsorption calculated for both adsorbents were smaller than 80 kJ/mol and it revealed that CO2 and CH4 adsorption is dominated by the physical adsorption. The alpha-Fe2O3 alpha/AC multicycle CO2 adsorption tests showed that it can be successfully regenerated with high sorption capacity. The -Fe2O3/AC composite is a promising adsorbent for potential application.en_US
dc.identifier.citationKırbıyık, Ç. (2019). Modification of Biomass-derived Activated Carbon with Magnetic alpha-Fe2O3 nanoparticles for CO2 and CH4 Adsorption. Turkish Journal of Chemistry, 43(2), 687-704.
dc.identifier.doi10.3906/kim-1810-32en_US
dc.identifier.endpage704en_US
dc.identifier.issn1300-0527en_US
dc.identifier.issue2en_US
dc.identifier.startpage687en_US
dc.identifier.urihttps://dx.doi.org/10.3906/kim-1810-32
dc.identifier.urihttps://hdl.handle.net/20.500.12395/38003
dc.identifier.volume43en_US
dc.identifier.wosWOS:000466785800026en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.institutionauthorKırbıyık, Çisem.
dc.language.isoenen_US
dc.publisherSCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAKen_US
dc.relation.ispartofTURKISH JOURNAL OF CHEMISTRYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectMagnetic compositeen_US
dc.subjectactivated carbonen_US
dc.subjectCO2 adsorptionen_US
dc.subjectCH4 adsorptionen_US
dc.titleModification of biomass-derived activated carbon with magnetic alpha-Fe2O3 nanoparticles for CO2 and CH4 adsorptionen_US
dc.typeArticleen_US

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