Effective removal of hexavalent chromium by novel modified alginate-based biocomposites: Characterization, kinetics and equilibrium studies

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dc.authoridDEVECI, Ece Ummu/0000-0002-7551-188X
dc.authoridAkarsu, Ceyhun/0000-0002-0168-9941
dc.authoridMADENLI, Ozgecan/0000-0002-8673-3963
dc.contributor.authorMadenli, Ozgecan
dc.contributor.authorAkarsu, Ceyhun
dc.contributor.authorDeveci, Ece Ummu
dc.date.accessioned2024-11-07T13:32:56Z
dc.date.available2024-11-07T13:32:56Z
dc.date.issued2023
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThis study aims to synthesise novel biocomposites by combining fungal hyphae (Aspergillus oryzae or Penicillium roqueforti) and reduced graphene oxide to evaluate their adsorption potential for hexavalent chromium (Cr(VI)) from synthetic solutions and real wastewater. Fourier-transform infrared spectroscopy, scanning electron mi-croscopy, X-ray diffraction, and thermogravimetric analyses were used to characterize the effects of the carbon -based materials on microbial structure. In addition, independent variables including with a contact time (1-11 h), reduced graphene oxide concentration (0.1-1 g.L-1), and initial Cr(VI) concentration (10-50 mg L-1) were tested in batch-scale laboratory experiments by response surface methodology. Accordingly, maximum adsorp-tion was achieved at 11 h contact time, 1.0 g L-1 rGO, and 50 mg L-1 Cr(VI) with a removal rate of 98.9%. The pseudo-first-order and Freundlich isotherm models were well fitted. The results show that these biocomposites can serve as novel adsorbent for the removal of Cr(VI) from wastewater.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [120Y087]
dc.description.sponsorshipThis work was funded by The Scientific and Technological Research Council of Turkey (TUBITAK) with the project numbered 120Y087.
dc.identifier.doi10.1016/j.ceramint.2023.02.005
dc.identifier.endpage16450
dc.identifier.issn0272-8842
dc.identifier.issn1873-3956
dc.identifier.issue10
dc.identifier.scopus2-s2.0-85148743090
dc.identifier.scopusqualityQ1
dc.identifier.startpage16440
dc.identifier.urihttps://doi.org/10.1016/j.ceramint.2023.02.005
dc.identifier.urihttps://hdl.handle.net/11480/15684
dc.identifier.volume49
dc.identifier.wosWOS:000968364200001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofCeramics International
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectAdsorption
dc.subjectAspergillus oryzae
dc.subjectHexavalent chromium removal
dc.subjectPenicillium roqueforti
dc.subjectReduced graphene oxide
dc.subjectSodium alginate gel beads
dc.titleEffective removal of hexavalent chromium by novel modified alginate-based biocomposites: Characterization, kinetics and equilibrium studies
dc.typeArticle

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