Tolerance and bioaccumulation of U(VI) by Bacillus mojavensis and its solid phase preconcentration by Bacillus mojavensis immobilized multiwalled carbon nanotube

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dc.authoridKilinc, Ersin -- 0000-0001-5223-9919; Soylak, Mustafa -- 0000-0002-1017-0244en_US
dc.contributor.authorOzdemir, Sadin
dc.contributor.authorOduncu, M. Kadir
dc.contributor.authorKilinc, Ersin
dc.contributor.authorSoylak, Mustafa
dc.date.accessioned14.07.201910:50:10
dc.date.accessioned2019-07-16T20:43:57Z
dc.date.available14.07.201910:50:10
dc.date.available2019-07-16T20:43:57Z
dc.date.issued2017
dc.departmentMAÜ, Meslek Yüksekokulları, Sağlık Hizmetleri Meslek Yüksekokulu, Tıbbi Hizmetler ve Teknikler Bölümüen_US
dc.description.abstractIn this study, uranium(VI) tolerance and bioaccumulation were investigated by using thermo-tolerant Bacillus mojavensis. The level of U(VI) was measured by UV-VIS spectrophotometry. The minimum inhibition concentration (MIC) value of U(VI) was experimented. Bacterial growth was not affected in the presence of 1.0 and 2.5 mg/L U(VI) at 36 h and the growth was partially affected in the presence of 5 mg/L U(VI) at 24 h. What was obtained from this study is that there was diversity in the various periods of the growth phases of metal bioaccumulation capacity, which was shown by B. mojavensis. The maximum bioaccumulation capacities were found to be 12.8, 22.7, and 48.2 mg/g dried bacteria, at 24th hours at concentration of 1.0, 2.5 and 5 mg/L U(VI), respectively. In addition to these, U(VI) has been pre-concentrated on B. mojavensis immobilized MWCNT. Several factors such as pH, flow rate of solution, amount of biosorbent and support materials, eluent type, concentration and volume, the matrix interference effect on retention have been studied, and extraction conditions were optimized. Preconcentration factor was achieved as 60. Under the optimized conditions, the limit of detection (LOD) and quantification (LOQ) were calculated as 0.74 and 2.47 mu g/L. The biosorption capacity of immobilized B. mojavensis was calculated for U(VI) as 25.8 mg/g. The results demonstrated that the immobilized biosorbent column could be reused at least 30 cycles of biosorption and desorption with the higher than 95% recovery. FT-IR and SEM analysis were performed to understand the surface properties of B. mojavensis. (C) 2016 Elsevier Ltd. All rights reserved.en_US
dc.identifier.citationÖzdemir, S., Oduncu, M. K., Kilinc, E., & Soylak, M. (2017). Tolerance and bioaccumulation of U(VI) by Bacillus mojavensis and its solid phase preconcentration by Bacillus mojavensis immobilized multiwalled carbon nanotube. Journal of Environmental Management, 187, 490–496. https://doi.org/10.1016/j.jenvman.2016.11.004
dc.identifier.doi10.1016/j.jenvman.2016.11.004en_US
dc.identifier.endpage496en_US
dc.identifier.issn0301-4797
dc.identifier.issn1095-8630
dc.identifier.pmid27856038en_US
dc.identifier.scopus2-s2.0-85006820956en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage490en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.jenvman.2016.11.004
dc.identifier.urihttps://hdl.handle.net/20.500.12514/1304
dc.identifier.volume187en_US
dc.identifier.wosWOS:000392037500051en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTDen_US
dc.relation.ispartofJOURNAL OF ENVIRONMENTAL MANAGEMENTen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBacillus mojavensisen_US
dc.subjectResistance and bioaccumulatiohen_US
dc.subjectSolid phase extraction preconcentrationen_US
dc.subjectU(VI)en_US
dc.titleTolerance and bioaccumulation of U(VI) by Bacillus mojavensis and its solid phase preconcentration by Bacillus mojavensis immobilized multiwalled carbon nanotubeen_US
dc.typeArticleen_US

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