Preparation of new alginate capsules enclosing diatomite and organic extractants to uptake lanthanum

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dc.authoridYoho, Michael Duncan/0000-0002-7865-6558
dc.authoridGOK, Cem/0000-0002-8949-8129
dc.authoridKaptanoğlu, İkbal Gözde/0000-0002-3852-9853
dc.authoridORAL, Alparslan Enes/0000-0002-0504-7057
dc.authorwosidYoho, Michael Duncan/ITV-1385-2023
dc.authorwosidGOK, Cem/AAD-2122-2022
dc.authorwosidKaptanoğlu, İkbal Gözde/DJX-7946-2022
dc.contributor.authorColakoglu, Tunc
dc.contributor.authorOral, Alparslan Enes
dc.contributor.authorAytas, Sule
dc.contributor.authorYusan, Sabriye
dc.contributor.authorKaptanoglu, Ikbal Gozde
dc.contributor.authorGok, Cem
dc.contributor.authorYoho, Michael Duncan
dc.date.accessioned2024-03-09T18:48:20Z
dc.date.available2024-03-09T18:48:20Z
dc.date.issued2023
dc.departmentİzmir Bakırçay Üniversitesien_US
dc.description.abstractThe present study conducted syntheses of Ca-alginate composite beads, which involved trioctyl-amine (TOA), tributyl phosphate (TBP), trioctylphosphine oxide (TOPO) organic extractants, and diatomite for separation of La (III) ions from dilute aqueous solutions. The surface morphology of the capsules was examined under Scanning Electron Microscopy, while their chemical structure was characterized using Fourier Transform Infrared Spectroscopy. Alginate composites were prepared by adding concentrations of TBP (1%-10%), TOPO (0.005 M-0.09 M) and TOA (1%-10%) organic extractants to the Na-alginate-diatomite mixture.The effects of various parameters on adsorption such as solution pH, contact time, metal ion concentration, and temperature, were individually tested using standard solutions of La(III). The maximum uptake capacity of the alginate composite adsorbent, consisting of TOA, diatomite, and alginate for La(III) ions, was examined at 25 degrees C. Adsorption data were analyzed using Langmuir, Freundlich, Dubinin-Radushkevich (D-R), Temkin, FloryHuggins and Brunauer, and Emmett and Teller (BET) isotherm models. The biosorption isotherm parameters were estimated by both linear and nonlinear regression analyses. The results indicate that the Langmuir model provides a better fit than the other models for the adsorption equilibrium data.Thermodynamic parameters such as variations of enthalpy, entropy, and Gibbs free energy were calculated. The maximum uptake capacity of the alginate composite adsorbent, including TOA, diatomite, and alginate for La(III) ions from aqueous solutions was found to be 146.4 mg/g. The adsorption efficiency in dilute solutions was determined to be 97.2%.en_US
dc.identifier.doi10.1016/j.hydromet.2023.106158
dc.identifier.issn0304-386X
dc.identifier.issn1879-1158
dc.identifier.scopus2-s2.0-85169034073en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.hydromet.2023.106158
dc.identifier.urihttps://hdl.handle.net/20.500.14034/1298
dc.identifier.volume222en_US
dc.identifier.wosWOS:001067311800001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofHydrometallurgyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLanthanum; Alginate; Diatomite; Encapsulation; Adsorption; Trioctyl Amineen_US
dc.titlePreparation of new alginate capsules enclosing diatomite and organic extractants to uptake lanthanumen_US
dc.typeArticleen_US

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