Preparation and characterization of a novel magnetic biosorbent functionalized with biomass of Bacillus Subtilis: Kinetic and isotherm studies of biosorption processes in the removal of Methylene Blue

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dc.contributor.authorTural, Bilsen
dc.contributor.authorErtas, Erdal
dc.contributor.authorEnez, Baris
dc.contributor.authorFincan, Sema Aguloglu
dc.contributor.authorTural, Servet
dc.date.accessioned2024-04-24T16:15:04Z
dc.date.available2024-04-24T16:15:04Z
dc.date.issued2017
dc.departmentDicle Üniversitesien_US
dc.description.abstractA novel magnetic biosorbent (M-BSub) was successfully prepared by the immobilization of Bacillus subtilis (B. subtilis) with nano-sized magnetic silica which was confirmed by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM), scanning electron microscope (SEM). Optimum biosorption conditions were determined as a function of pH, contact time and initial concentration of Methylene Blue (MB). The maximum biosorption efficiency of MB was obtained at pH 6.8 and 30 degrees C. The uptake of dye was very fast initially, and achieved equilibrium after 3 h. The isotherm models like Langmuir, Freundlich, Dubinin-Radushkevich (D-R) were used to analyze the equilibrium data. The equilibrium data fit better to the Freundlich model compared to the Langmuir model in concentration range studied (50-300 mg/L). The maximum biosorption capacity of biosorbent reached up to 59 +/- 0.6 mg g(-1) at pH value of 6.8 and 30 degrees C. The kinetics data were analyzed using adsorption kinetic models like the pseudo-first order, pseudo-second order and intraparticle diffusion equation. Kinetic data showed good agreement with the pseudo-second order kinetic model. In addition, biosorbent can be easily regenerated and reused for five cycles with high biosorption capacity. This study indicated that M-BSub is a reusable biosorbent for rapid, convenient, and efficient removal of MB from contaminated aquatic systems.en_US
dc.description.sponsorshipDicle University Research Fund (DUBAP) [13-ZEF-28, ZGEF.16.008, ZGEF.17.008]; Scientific and Technological Research Council of Turkey (TUBITAK) [109T497]; COST Action [CM0701]en_US
dc.description.sponsorshipThis project is funded by the financial support from Dicle University Research Fund (DUBAP, 13-ZEF-28, ZGEF.16.008, ZGEF.17.008) and the Scientific and Technological Research Council of Turkey (TUBITAK, 109T497), COST Action CM0701.en_US
dc.identifier.doi10.1016/j.jece.2017.09.019
dc.identifier.endpage4802en_US
dc.identifier.issn2213-3437
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85029213336
dc.identifier.scopusqualityQ1
dc.identifier.startpage4795en_US
dc.identifier.urihttps://doi.org/10.1016/j.jece.2017.09.019
dc.identifier.urihttps://hdl.handle.net/11468/15624
dc.identifier.volume5en_US
dc.identifier.wosWOS:000414041300069
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofJournal of Environmental Chemical Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectMethylene Blue (Mb)en_US
dc.subjectMagnetic Biosorbenten_US
dc.subjectMagnetic Separationen_US
dc.subjectBiomass Of Bacillus Subtilis (B. Subtilis)en_US
dc.subjectIsothermsen_US
dc.subjectBiosorption Kineticsen_US
dc.titlePreparation and characterization of a novel magnetic biosorbent functionalized with biomass of Bacillus Subtilis: Kinetic and isotherm studies of biosorption processes in the removal of Methylene Blueen_US
dc.titlePreparation and characterization of a novel magnetic biosorbent functionalized with biomass of Bacillus Subtilis: Kinetic and isotherm studies of biosorption processes in the removal of Methylene Blue
dc.typeArticleen_US

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