Synthesis and Kinetic Adsorption Characteristics of Zeolite / CeO2 Nanocomposite

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dc.contributor.authorNyankson, E.
dc.contributor.authorAdjasoo, J.
dc.contributor.authorEfavi, J.K.
dc.contributor.authorYaya, A.
dc.contributor.authorManu, G.
dc.contributor.authorKingsford, A.
dc.contributor.authorAbrokwah, R.Y.
dc.date.accessioned2020-01-20T13:26:15Z
dc.date.available2020-01-20T13:26:15Z
dc.date.issued2019-11-23
dc.descriptionResearch Articleen_US
dc.description.abstractAdsorption is an effective method for treating polluted water bodies. In this study, Zeolite/Cerium oxide nanocomposite (Z/CeO2-NC) was hydrothermally synthesize and its adsorption capacity on methylene blue organic dye (MB) studied. The as-synthesized nanocomposite (Z/CeO2–NC) were characterized using X-Ray Diffraction (XRD), Fourier Transform Infra-Red (FT-IR), Energy Dispersive X-Ray Spectroscopy (EDX) and Scanning Electron Microscopy (SEM). Kinetic models and sorption isotherms were used to predict the adsorption rate constants and process mechanisms. The synthesized Z/CeO2-NC showed an excellent adsorption kinetics of methylene blue and the characteristics of adsorption best fitted a pseudo-second-order model. The rate parameters of other models were evaluated and compared to establish the adsorption mechanisms. The Langmuir isotherm model best fitted the adsorption process indicating a homogeneous monolayer of the dye on the surface of the adsorbent. The thermodynamic Gibbs free energy (ΔG) parameter was determined to be negative, indicating a spontaneous adsorption process. The synthesized Z/CeO2-NCs showed strong adsorption for methylene blue dye with increasing amount of CeO2. The maximum adsorption efficiency was calculated as 93.9% and the maximum regeneration efficiency of the adsorbent was found to be 78.8% higher after it had been washed by alkaline solution of pH 13. The results reflect the feasibility of the nanocomposite as an adsorbent with a potential application in wastewater treatment technologies.en_US
dc.description.sponsorshipUniversity of Ghana UGRF10 research grant and the Commonwealth Early Academic Fellowship and the Cambridge-Africa Partnership for Research Excellence (CAPREx) Fellowship Programsen_US
dc.identifier.otherhttps://doi.org/10.1016/j.sciaf.2019.e00257
dc.identifier.urihttp://ugspace.ug.edu.gh/handle/123456789/34443
dc.language.isoenen_US
dc.publisherScientific Africanen_US
dc.relation.ispartofseries;2020
dc.subjectKaolinen_US
dc.subjectSEMen_US
dc.subjectZeolite Aen_US
dc.subjectCerium Oxide Adsorbenten_US
dc.subjectMethylene Blueen_US
dc.subjectKineticsen_US
dc.titleSynthesis and Kinetic Adsorption Characteristics of Zeolite / CeO2 Nanocompositeen_US
dc.typeArticleen_US

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