An adsorption agent based on chitosan-zeolite composite: environmental and radioactive liquid waste remediation

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Autor(es): dc.contributorNuclear and Energy Research Institute (IPEN)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorde Araujo, Leandro Goulart-
Autor(es): dc.creatorMedeiros, Vinicius Litrenta-
Autor(es): dc.creatorGuarnieri, Guilherme de Paula-
Autor(es): dc.creatorda Silva, Danilo Antonio-
Autor(es): dc.creatorWatanabe, Tamires-
Autor(es): dc.creatorMarumo, Júlio Takehiro-
Autor(es): dc.creatorNery, José Geraldo-
Data de aceite: dc.date.accessioned2025-08-21T17:04:13Z-
Data de disponibilização: dc.date.available2025-08-21T17:04:13Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-01-29-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1039/d2va00148a-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/248409-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/248409-
Descrição: 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.-
Descrição: dc.descriptionNuclear and Energy Research Institute (IPEN), Av. Prof. Lineu Prestes 2242, SP-
Descrição: dc.descriptionDepartment of Physics Institute of Bioscience Letters and Exact Sciences São Paulo State University (UNESP) Campus of São José do Rio Preto, SP-
Descrição: dc.descriptionDepartment of Physics Institute of Bioscience Letters and Exact Sciences São Paulo State University (UNESP) Campus of São José do Rio Preto, SP-
Formato: dc.format484-494-
Idioma: dc.languageen-
Relação: dc.relationEnvironmental Science: Advances-
???dc.source???: dc.sourceScopus-
Título: dc.titleAn adsorption agent based on chitosan-zeolite composite: environmental and radioactive liquid waste remediation-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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