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Fractal-like kinetics for adsorption of Pb (II) on graphene oxide/hydrous zirconium oxide/crosslinked starch bio-composite: Application of Taguchi approach for optimization

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dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Síntesis y Procesado de Materialeses
dc.contributor.authorRahman, Nafisur
dc.contributor.authorRaheem, Abdur
dc.contributor.authorAl-Kahtani, Abdullah A.
dc.contributor.authorPandit, Bidhan
dc.contributor.authorUbaidullah, Mohd
dc.date.accessioned2024-01-19T18:19:50Z
dc.date.available2024-01-19T18:19:50Z
dc.date.issued2023-07-01
dc.description.abstractThis study deals with the decontamination of Pb (II) from aqueous environment using graphene oxide/hydrous zirconium oxide/crosslinked starch bio-composite (GZS-BC). Various instrumental techniques were used to characterize the GZS-BC. The main factors of Pb (II) sorption were optimized by Taguchi method. Under optimum conditions, (adsorbent dose: 40 mg, contact time: 180 min and initial Pb (II) concentration: 50 mg/L) maximum removal efficiency (98.50%) was achieved at pH 6. Various isotherm models were tested to fit the adsorption data and Freundlich isotherm model was the best fit model with high R2 values (0.9977–0.9983) and low values of χ2 (0.01–0.02) and APE (0.90–1.14). The kinetic data were investigated using classical and fractal-like kinetic equations. The fractal-like mixed 1,2-order kinetic model was the best fit model which pointed towards heterogeneous surface of GZS-BC with more than one type of sorption sites. Thermodynamic study shows that Pb (II) sorption onto GZS-BC was spontaneous and endothermic in nature. The values of ΔG° indicated that physisorption together with chemisorption was responsible for uptake of Pb (II).en
dc.description.sponsorshipThe authors are highly thankful to Department of Chemistry, AMU assisted through UGC DRS-SAP, DST-PURSE and DST-FIST programs for providing necessary facilities. The authors extend their sincere appreciation to the Researchers Supporting Project Number (RSP2023R266) King Saud University, Riyadh, Saudi Arabia for the support.en
dc.description.statusPublicadoes
dc.format.extent10
dc.identifier.bibliographicCitationRahman, N., Raheem, A., Al-Kahtani, A.A., Pandit, B., Ubaidullah, M. Fractal-like kinetics for adsorption of Pb (II) on graphene oxide/hydrous zirconium oxide/crosslinked starch bio-composite: Application of Taguchi approach for optimization. (2023). Journal of King Saud University - Science, 35 (2023) 102712. (10p.) doi:10.1016/j.jksus.2023.102712en
dc.identifier.doihttps://doi.org/10.1016/j.jksus.2023.102712
dc.identifier.issn1018-3647
dc.identifier.issn2213-686X (online)
dc.identifier.publicationfirstpage1
dc.identifier.publicationissue5,102712
dc.identifier.publicationlastpage10
dc.identifier.publicationtitleJournal of King Saud University - Scienceen
dc.identifier.publicationvolume35
dc.identifier.urihttps://hdl.handle.net/10016/39386
dc.identifier.uxxiAR/0000033700
dc.language.isoengen
dc.publisherElsevieren
dc.rights© 2023 The Author(s). Published by Elsevier B.V. on behalf of King Saud University.en
dc.rightsThis is an open access article under the CC BY-NC-ND license.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaIngeniería Industriales
dc.subject.ecienciaMaterialeses
dc.subject.ecienciaQuímicaes
dc.subject.otherClassical and fractal kineticsen
dc.subject.otherGraphene Oxide/Hydrous Zirconium Oxide/Crosslinked starch bio-Composite (Gzs-Bc)en
dc.subject.otherPb (II)en
dc.subject.otherSorptionen
dc.subject.otherTaguchi approachen
dc.subject.otherThermodynamicsen
dc.titleFractal-like kinetics for adsorption of Pb (II) on graphene oxide/hydrous zirconium oxide/crosslinked starch bio-composite: Application of Taguchi approach for optimizationen
dc.typeresearch articleen
dc.type.hasVersionVoRen
dspace.entity.typePublication
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