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A novel oyster shell biocomposite for the efficient adsorptive removal of cadmium and lead from aqueous solution: Synthesis, process optimization, modelling and mechanism studies

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dc.citedby2
dc.contributor.authorAdeleke A.O.en_US
dc.contributor.authorRoyahu C.O.en_US
dc.contributor.authorAfolabi A.A.en_US
dc.contributor.authorAlshammari M.B.en_US
dc.contributor.authorImteaz M.en_US
dc.contributor.authorid57194067040en_US
dc.contributor.authorid57903899400en_US
dc.contributor.authorid58902837700en_US
dc.contributor.authorid57653516000en_US
dc.contributor.authorid6506146119en_US
dc.date.accessioned2025-03-03T07:44:49Z
dc.date.available2025-03-03T07:44:49Z
dc.date.issued2024
dc.description.abstractThis study highlights the effectiveness of oyster shell biocomposite for the biosorption of Cd(II) and Pb(II) ions from an aqueous solution. The aim of this work was to modify a novel biocomposite derived from oyster shell for the adsorption of Cd(II) and Pb(II) ions from aqueous solution. The studied revealed the specific surface BET surface area was 9.1476 m2/g. The elemental dispersive x-ray analysis (EDS) indicated that C, O, Ag, Ca were the predominant elements on the surface of the biocomposite after which metals ions of Cd and Pb were noticed after adsorption. The Fourier transform Irradiation (FT-IR) revealed the presence of carboxyl and hydroxyl groups on the surface. The effect of process variables on the adsorption capacity of the modified biocomposite was examined using the central composite design (CCD) of the response surface methodology (RSM). The process variables which include pH, adsorbent dose, the initial concentration and temperature were the most effective parameters influencing the uptake capacity. The optimal process conditions of these parameters were found to be pH, 5.57, adsorbent dose, 2.53 g/L, initial concentration, 46.76 mg/L and temperature 28.48�C for the biosorption of Cd(II) and Pb(II) ions from aqueous solution at a desirability coefficient of 1. The analysis of variance (ANOVA) revealed a high coefficient of determination (R2 > 0.91) and low probability coefficients for the responses (P < 0.05) which indicated the validity and aptness of the model for the biosorption of the metal ions. Experimental isotherm data fitted better to the Langmuir model and the kinetic data fitted better to the pseudo-second-order model. Maximun Cd(II) and Pb(II) adsorption capacities of the oyster shell biocomposite were 97.54 and 78.99 mg/g respectively and was obtained at pH 5.56 and 28.48�C. This investigation has provided the possibility of the utilization of alternative biocomposite as a sustainable approach for the biosorption of heavy metal ions from the wastewater stream. ? 2024 Adeleke et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNoe0294286
dc.identifier.doi10.1371/journal.pone.0294286
dc.identifier.issue2-Feb
dc.identifier.scopus2-s2.0-85185762771
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85185762771&doi=10.1371%2fjournal.pone.0294286&partnerID=40&md5=db79bb8e56f5326d43c367dc009fb223
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36806
dc.identifier.volume19
dc.publisherPublic Library of Scienceen_US
dc.relation.ispartofAll Open Access; Gold Open Access
dc.sourceScopus
dc.sourcetitlePLoS ONE
dc.subjectAdsorption
dc.subjectAnimals
dc.subjectCadmium
dc.subjectIons
dc.subjectLead
dc.subjectOstreidae
dc.subjectSpectroscopy, Fourier Transform Infrared
dc.subjectadsorbent
dc.subjectcadmium
dc.subjectcalcium carbonate
dc.subjectheavy metal
dc.subjectlead
dc.subjectmetal ion
dc.subjectnanocomposite
dc.subjectcadmium
dc.subjection
dc.subjectlead
dc.subjectadsorption
dc.subjectadsorption kinetics
dc.subjectanimal shell
dc.subjectaqueous solution
dc.subjectArticle
dc.subjectatomic absorption spectrometry
dc.subjectbioremediation
dc.subjectbiosorption
dc.subjectcentral composite design
dc.subjectcrystal structure
dc.subjectdiffusion
dc.subjectenergy dispersive X ray spectroscopy
dc.subjectenthalpy
dc.subjectFourier transform infrared spectroscopy
dc.subjectirradiation
dc.subjectisotherm
dc.subjectkinetics
dc.subjectnonhuman
dc.subjectoyster
dc.subjectparticle size
dc.subjectpH
dc.subjectRaman spectrometry
dc.subjectrate constant
dc.subjectresponse surface method
dc.subjectscanning electron microscopy
dc.subjectsurface area
dc.subjectsynthesis
dc.subjecttemperature
dc.subjectthermodynamics
dc.subjecttransmission electron microscopy
dc.subjectwastewater
dc.subjectX ray analysis
dc.subjectX ray diffraction
dc.subjectadsorption
dc.subjectanimal
dc.titleA novel oyster shell biocomposite for the efficient adsorptive removal of cadmium and lead from aqueous solution: Synthesis, process optimization, modelling and mechanism studiesen_US
dc.typeArticleen_US
dspace.entity.typePublication
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