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Synthesis of multi-application activated carbon from oak seeds by KOH activation for methylene blue adsorption and electrochemical supercapacitor electrode

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dc.contributor.author Borghei, Seyed Abbas
dc.contributor.author Zare, Masoud Habibi
dc.contributor.author Ahmadi, Mojtaba
dc.contributor.author Sadeghi, Mohammad Hasan
dc.contributor.author Marjani, Azam
dc.contributor.author Shirazian, Saeed
dc.contributor.author Ghadiri, Mahdi
dc.date.accessioned 2021-01-18T09:58:38Z
dc.date.available 2021-01-18T09:58:38Z
dc.date.issued 2021
dc.identifier.uri http://hdl.handle.net/10344/9614
dc.description peer-reviewed en_US
dc.description.abstract In the current study, an oak as a non-expensive, renewable, and a biomass resource was used to generate a nano-porous activated carbon applicable in methylene blue adsorption from wastewater and energy storage equipment. Furnace activation in the temperature range of 450, 550, 650 and 750 C was used for activated carbon synthesis after infusion with potassium hydroxide. The synthesized activated carbon was characterized using different techniques including nitrogen adsorption/desorption, scanning electron microscopy, and fourier-transform infrared spectroscopy. The results showed that temperature has significant effect on activated carbon efficiency. Specific surface and pore volumes increased with the enhancement of temperature until 650 C, but then it was decreased. Pores volume was consisting of mesoporous and microporous structure. The highest surface area (2896 m2 /g) and pores volume (1.554 cm3 /g) was obtained for the sample prepared at 650 C. Freundlich isotherm model is appropriate for methylene blue adsorption isotherm by the synthesized activated carbon. The maximum adsorption capacity of MB was obtained as 24 mg/g. Moreover, the synthesized activated carbon exhibited the highest specific capacitance when it was used as electrode (551 F/g at current density of 1 A/g) in 1 M sulphuric acid electrolyte and 96% specific capacitance was remained after 5000 charge-discharge cycles at a current density of 10 A/g. en_US
dc.language.iso eng en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Arabian Journal of Chemistry;14 (2), 102958
dc.subject Activated carbon en_US
dc.subject Adsorbent en_US
dc.subject Supercapacitor en_US
dc.title Synthesis of multi-application activated carbon from oak seeds by KOH activation for methylene blue adsorption and electrochemical supercapacitor electrode en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1016/j.arabjc.2020.102958
dc.contributor.sponsor Ministry of Science and Higher Education of Russia en_US
dc.relation.projectid FENU-2020-0019 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US


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