An adsorption agent based on chitosan-zeolite composite: environmental and radioactive liquid waste remediation
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1039/d2va00148a http://hdl.handle.net/11449/248409 |
Resumo: | In 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. |
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An adsorption agent based on chitosan-zeolite composite: environmental and radioactive liquid waste remediationIn 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.Nuclear and Energy Research Institute (IPEN), Av. Prof. Lineu Prestes 2242, SPDepartment of Physics Institute of Bioscience Letters and Exact Sciences São Paulo State University (UNESP) Campus of São José do Rio Preto, SPDepartment of Physics Institute of Bioscience Letters and Exact Sciences São Paulo State University (UNESP) Campus of São José do Rio Preto, SPNuclear and Energy Research Institute (IPEN)Universidade Estadual Paulista (UNESP)de Araujo, Leandro GoulartMedeiros, Vinicius Litrenta [UNESP]Guarnieri, Guilherme de Paula [UNESP]da Silva, Danilo Antonio [UNESP]Watanabe, TamiresMarumo, Júlio TakehiroNery, José Geraldo [UNESP]2023-07-29T13:43:19Z2023-07-29T13:43:19Z2023-01-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article484-494http://dx.doi.org/10.1039/d2va00148aEnvironmental Science: Advances, v. 2, n. 3, p. 484-494, 2023.2754-7000http://hdl.handle.net/11449/24840910.1039/d2va00148a2-s2.0-85148674801Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEnvironmental Science: Advancesinfo:eu-repo/semantics/openAccess2023-07-29T13:43:19Zoai:repositorio.unesp.br:11449/248409Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T13:43:19Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
An adsorption agent based on chitosan-zeolite composite: environmental and radioactive liquid waste remediation |
title |
An adsorption agent based on chitosan-zeolite composite: environmental and radioactive liquid waste remediation |
spellingShingle |
An adsorption agent based on chitosan-zeolite composite: environmental and radioactive liquid waste remediation de Araujo, Leandro Goulart |
title_short |
An adsorption agent based on chitosan-zeolite composite: environmental and radioactive liquid waste remediation |
title_full |
An adsorption agent based on chitosan-zeolite composite: environmental and radioactive liquid waste remediation |
title_fullStr |
An adsorption agent based on chitosan-zeolite composite: environmental and radioactive liquid waste remediation |
title_full_unstemmed |
An adsorption agent based on chitosan-zeolite composite: environmental and radioactive liquid waste remediation |
title_sort |
An adsorption agent based on chitosan-zeolite composite: environmental and radioactive liquid waste remediation |
author |
de Araujo, Leandro Goulart |
author_facet |
de Araujo, Leandro Goulart Medeiros, Vinicius Litrenta [UNESP] Guarnieri, Guilherme de Paula [UNESP] da Silva, Danilo Antonio [UNESP] Watanabe, Tamires Marumo, Júlio Takehiro Nery, José Geraldo [UNESP] |
author_role |
author |
author2 |
Medeiros, Vinicius Litrenta [UNESP] Guarnieri, Guilherme de Paula [UNESP] da Silva, Danilo Antonio [UNESP] Watanabe, Tamires Marumo, Júlio Takehiro Nery, José Geraldo [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Nuclear and Energy Research Institute (IPEN) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
de Araujo, Leandro Goulart Medeiros, Vinicius Litrenta [UNESP] Guarnieri, Guilherme de Paula [UNESP] da Silva, Danilo Antonio [UNESP] Watanabe, Tamires Marumo, Júlio Takehiro Nery, José Geraldo [UNESP] |
description |
In 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. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T13:43:19Z 2023-07-29T13:43:19Z 2023-01-30 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1039/d2va00148a Environmental Science: Advances, v. 2, n. 3, p. 484-494, 2023. 2754-7000 http://hdl.handle.net/11449/248409 10.1039/d2va00148a 2-s2.0-85148674801 |
url |
http://dx.doi.org/10.1039/d2va00148a http://hdl.handle.net/11449/248409 |
identifier_str_mv |
Environmental Science: Advances, v. 2, n. 3, p. 484-494, 2023. 2754-7000 10.1039/d2va00148a 2-s2.0-85148674801 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Environmental Science: Advances |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
484-494 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803046196496826368 |