An adsorption agent based on chitosan???zeolite composite

dc.creatorARAUJO, LEANDRO G. de
dc.creatorMEDEIROS, VINICIUS L.
dc.creatorGUARNIERI, GUILHERME de P.
dc.creatorSILVA, DANILO A. da
dc.creatorWATANABE, TAMIRES
dc.creatorMARUMO, JULIO T.
dc.creatorNERY, JOSE G.
dc.date2023
dc.date2023-06-13T19:57:26Z
dc.date2023-06-13T19:57:26Z
dc.date.accessioned2023-09-28T14:26:02Z
dc.date.available2023-09-28T14:26:02Z
dc.identifier2754-7000
dc.identifierhttp://repositorio.ipen.br/handle/123456789/34064
dc.identifier3
dc.identifier2
dc.identifier10.1039/d2va00148a
dc.identifier0000-0003-3010-9691
dc.identifierSem Percentil
dc.identifier7.25
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9004273
dc.descriptionIn this article, we present a chitosan???zeolite composite, which was synthesized and used as an adsorbent material for caesium (Cs) removal from aqueous media and real liquid radioactive organic waste (LROW). The compound was characterized by X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy techniques. The physicochemical characterization indicates the production of a composite. Adsorption experiments were first performed using the prepared solutions contaminated with Cs using full factorial design with two variables of interest: initial Cs concentration (Cs0) and adsorbent dosage (mg L???1 ). The results indicated a high caesium removal rate with removal values above 93% and adsorption capacity of up to 10 mg g???1 . With the best experimental conditions according to our experimental domain, time was evaluated and equilibrium was reached in 180 min. Finally, the adsorbent material was tested as an adsorbent for Cs, Am, and U from LROW. When in contact with LORW, the removal rates (%) were 21.51 (137Cs), 26.39 (241Am), and 20.26 (U (total)). Although lower, this material indicated that it has the potential to be used for multi-elemental adsorption.
dc.descriptionConselho Nacional de Desenvolvimento Cient??fico e Tecnol??gico (CNPq)
dc.descriptionCNPq: 131642/2018-9
dc.format484???494
dc.relationEnvironmental Science: Advances
dc.rightsopenAccess
dc.subjectadsorption
dc.subjectchitin
dc.subjectzeolites
dc.subjectpolysaccharides
dc.subjectradioactive wastes
dc.subjectliquid wastes
dc.subjectradioactive effluents
dc.titleAn adsorption agent based on chitosan???zeolite composite
dc.typeArtigo de peri??dico
dc.coverageI


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