CHITOSAN BIOPOLYMER IN GLYPHOSATE ADSORPTION: USE IN ENVIRONMENTAL MONITORING OR REMEDIATION

Detalhes bibliográficos
Autor(a) principal: de Oliveira, Giovana Rocha
Data de Publicação: 2023
Outros Autores: D’Alevedo, Larissa Botelho, Lessa, Suzan da Silva, Caetano, Marina Madid Micheletti, Goveia, Danielle, Tonello, Paulo Sergio
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Holos
Texto Completo: http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16367
Resumo: In this work, low molecular weight chitosan was used to adsorb the herbicide glyphosate in aqueous solution. Considering the possibilities of remediation and monitoring in aquatic environments, chitosan was formatted into thin discs 0.8 mm thick and 2.5 cm in diameter. The films were characterized by SEM, EDS and FTIR. In the adsorption study, a chitosan disc was able to adsorb 100% of a 5 mgL-1 glyphosate solution. Pseudo-first-order, pseudo-second-order and Elovich kinetic models were applied and it was found that chemisorption predominates in the adsorption process. Thus, chitosan films can act very well as a material for remediating water bodies contaminated by glyphosate. For monitoring studies, the possibility of using chitosan films in DGT (Diffusive Gradients in Thin Films) technique was verified and the diffusive material used was 1.5% agarose film (m/v). The diffusion coefficient of glyphosate in the agarose gel was determined 7.94 x 10-10 m2s-1.
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spelling CHITOSAN BIOPOLYMER IN GLYPHOSATE ADSORPTION: USE IN ENVIRONMENTAL MONITORING OR REMEDIATIONBIOPOLÍMERO DE QUITOSANO EN ADSORCIÓN DE GLIFOSATO: USO EN MONITOREO O REMEDIACIÓN AMBIENTALBIOPOLÍMERO QUITOSANA NA ADSORÇÃO DE GLIFOSATO: USO NO MONITORAMENTO OU REMEDIAÇÃO AMBIENTALAdsorption, Chitosan, Environmental Monitoring, Glyphosate.dsorción, Chitosán, Monitoreo ambiental, GlifosatoAdsorção, Quitosana, Monitoramento ambiental, Glifosatoquitosana de baixo peso molecular para adsorver o herbicida glifosato em solução aquosalow molecular weight chitosan to adsorb glyphosate herbicide in aqueous solutionChitosán de bajo peso molecular para adsorber el herbicida glifosato en solución acuosa.In this work, low molecular weight chitosan was used to adsorb the herbicide glyphosate in aqueous solution. Considering the possibilities of remediation and monitoring in aquatic environments, chitosan was formatted into thin discs 0.8 mm thick and 2.5 cm in diameter. The films were characterized by SEM, EDS and FTIR. In the adsorption study, a chitosan disc was able to adsorb 100% of a 5 mgL-1 glyphosate solution. Pseudo-first-order, pseudo-second-order and Elovich kinetic models were applied and it was found that chemisorption predominates in the adsorption process. Thus, chitosan films can act very well as a material for remediating water bodies contaminated by glyphosate. For monitoring studies, the possibility of using chitosan films in DGT (Diffusive Gradients in Thin Films) technique was verified and the diffusive material used was 1.5% agarose film (m/v). The diffusion coefficient of glyphosate in the agarose gel was determined 7.94 x 10-10 m2s-1.En este trabajo se utilizó quitosano de bajo peso molecular para adsorber el herbicida glifosato en una solución acuosa. Considerando las posibilidades de remediación y monitoreo en ambientes acuáticos, el quitosano se formateó en discos delgados de 0,8 mm de espesor y 2,5 cm de diámetro. Las películas se caracterizaron por SEM, EDS y FTIR. En el estudio de adsorción, un disco de quitosano pudo adsorber el 100% de una solución de glifosato de 5 mgL-1. Se aplicaron modelos cinéticos de pseudoprimer orden, pseudosegundo orden y Elovich y se encontró que en el proceso de adsorción predomina la quimisorción. Por tanto, las películas de quitosano pueden actuar muy bien como material para remediar cuerpos de agua contaminados por glifosato. Para los estudios de seguimiento se verificó la posibilidad de utilizar películas de quitosano mediante la técnica DGT (Diffusive Gradients in Thin Films) y el material difusor utilizado fue una película de agarosa al 1,5% (m/v). Se determinó que el coeficiente de difusión del glifosato en el gel de agarosa fue de 7,94 x 10-10 m2s-1.Neste trabalho foi utilizada quitosana de baixo peso molecular para adsorver o herbicida glifosato em solução aquosa. Considerando as possibilidades de remediação e monitoramento em ambientes aquáticos, a quitosana foi formatada em discos finos de 0,8 mm de espessura e 2,5 cm de diâmetro. Os filmes foram caracterizados por MEV, EDS e FTIR. No estudo de adsorção, um disco de quitosana foi capaz de adsorver 100% de uma solução de 5 mgL-1 de glifosato. Foram aplicados modelos cinéticos de pseudo-primeira ordem, pseudossegunda ordem e Elovich e constatou-se que a quimissorção predomina no processo de adsorção. Assim, os filmes de quitosana podem atuar muito bem como material para remediação de corpos hídricos contaminados por glifosato. Para estudos de monitoramento foi verificada a possibilidade de utilização de filmes de quitosana na técnica DGT (Diffusive Gradients in Thin Films) e o material difusivo utilizado foi filme de agarose 1,5% (m/v). O coeficiente de difusão do glifosato no gel de agarose foi determinado 7,94 x 10-10 m2s-1.  Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte2023-12-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionTextoTextoinfo:eu-repo/semantics/otherapplication/pdfapplication/pdfhttp://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/1636710.15628/holos.2023.16367HOLOS; v. 5 n. 39 (2023): v.5 (2023)1807-1600reponame:Holosinstname:Instituto Federal do Rio Grande do Norte (IFRN)instacron:IFRNporenghttp://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16367/3860http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16367/3861Aquatic environments contaminated with herbicidesAmbientes acuáticos contaminados con herbicidasAmbientes aquáticos contaminados com herbicidashttps://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessde Oliveira, Giovana RochaD’Alevedo, Larissa BotelhoLessa, Suzan da SilvaCaetano, Marina Madid MichelettiGoveia, DanielleTonello, Paulo Sergio2023-12-28T03:14:36Zoai:holos.ifrn.edu.br:article/16367Revistahttp://www2.ifrn.edu.br/ojs/index.php/HOLOSPUBhttp://www2.ifrn.edu.br/ojs/index.php/HOLOS/oaiholos@ifrn.edu.br||jyp.leite@ifrn.edu.br||propi@ifrn.edu.br1807-16001518-1634opendoar:2023-12-28T03:14:36Holos - Instituto Federal do Rio Grande do Norte (IFRN)false
dc.title.none.fl_str_mv CHITOSAN BIOPOLYMER IN GLYPHOSATE ADSORPTION: USE IN ENVIRONMENTAL MONITORING OR REMEDIATION
BIOPOLÍMERO DE QUITOSANO EN ADSORCIÓN DE GLIFOSATO: USO EN MONITOREO O REMEDIACIÓN AMBIENTAL
BIOPOLÍMERO QUITOSANA NA ADSORÇÃO DE GLIFOSATO: USO NO MONITORAMENTO OU REMEDIAÇÃO AMBIENTAL
title CHITOSAN BIOPOLYMER IN GLYPHOSATE ADSORPTION: USE IN ENVIRONMENTAL MONITORING OR REMEDIATION
spellingShingle CHITOSAN BIOPOLYMER IN GLYPHOSATE ADSORPTION: USE IN ENVIRONMENTAL MONITORING OR REMEDIATION
de Oliveira, Giovana Rocha
Adsorption, Chitosan, Environmental Monitoring, Glyphosate.
dsorción, Chitosán, Monitoreo ambiental, Glifosato
Adsorção, Quitosana, Monitoramento ambiental, Glifosato
quitosana de baixo peso molecular para adsorver o herbicida glifosato em solução aquosa
low molecular weight chitosan to adsorb glyphosate herbicide in aqueous solution
Chitosán de bajo peso molecular para adsorber el herbicida glifosato en solución acuosa.
title_short CHITOSAN BIOPOLYMER IN GLYPHOSATE ADSORPTION: USE IN ENVIRONMENTAL MONITORING OR REMEDIATION
title_full CHITOSAN BIOPOLYMER IN GLYPHOSATE ADSORPTION: USE IN ENVIRONMENTAL MONITORING OR REMEDIATION
title_fullStr CHITOSAN BIOPOLYMER IN GLYPHOSATE ADSORPTION: USE IN ENVIRONMENTAL MONITORING OR REMEDIATION
title_full_unstemmed CHITOSAN BIOPOLYMER IN GLYPHOSATE ADSORPTION: USE IN ENVIRONMENTAL MONITORING OR REMEDIATION
title_sort CHITOSAN BIOPOLYMER IN GLYPHOSATE ADSORPTION: USE IN ENVIRONMENTAL MONITORING OR REMEDIATION
author de Oliveira, Giovana Rocha
author_facet de Oliveira, Giovana Rocha
D’Alevedo, Larissa Botelho
Lessa, Suzan da Silva
Caetano, Marina Madid Micheletti
Goveia, Danielle
Tonello, Paulo Sergio
author_role author
author2 D’Alevedo, Larissa Botelho
Lessa, Suzan da Silva
Caetano, Marina Madid Micheletti
Goveia, Danielle
Tonello, Paulo Sergio
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv de Oliveira, Giovana Rocha
D’Alevedo, Larissa Botelho
Lessa, Suzan da Silva
Caetano, Marina Madid Micheletti
Goveia, Danielle
Tonello, Paulo Sergio
dc.subject.por.fl_str_mv Adsorption, Chitosan, Environmental Monitoring, Glyphosate.
dsorción, Chitosán, Monitoreo ambiental, Glifosato
Adsorção, Quitosana, Monitoramento ambiental, Glifosato
quitosana de baixo peso molecular para adsorver o herbicida glifosato em solução aquosa
low molecular weight chitosan to adsorb glyphosate herbicide in aqueous solution
Chitosán de bajo peso molecular para adsorber el herbicida glifosato en solución acuosa.
topic Adsorption, Chitosan, Environmental Monitoring, Glyphosate.
dsorción, Chitosán, Monitoreo ambiental, Glifosato
Adsorção, Quitosana, Monitoramento ambiental, Glifosato
quitosana de baixo peso molecular para adsorver o herbicida glifosato em solução aquosa
low molecular weight chitosan to adsorb glyphosate herbicide in aqueous solution
Chitosán de bajo peso molecular para adsorber el herbicida glifosato en solución acuosa.
description In this work, low molecular weight chitosan was used to adsorb the herbicide glyphosate in aqueous solution. Considering the possibilities of remediation and monitoring in aquatic environments, chitosan was formatted into thin discs 0.8 mm thick and 2.5 cm in diameter. The films were characterized by SEM, EDS and FTIR. In the adsorption study, a chitosan disc was able to adsorb 100% of a 5 mgL-1 glyphosate solution. Pseudo-first-order, pseudo-second-order and Elovich kinetic models were applied and it was found that chemisorption predominates in the adsorption process. Thus, chitosan films can act very well as a material for remediating water bodies contaminated by glyphosate. For monitoring studies, the possibility of using chitosan films in DGT (Diffusive Gradients in Thin Films) technique was verified and the diffusive material used was 1.5% agarose film (m/v). The diffusion coefficient of glyphosate in the agarose gel was determined 7.94 x 10-10 m2s-1.
publishDate 2023
dc.date.none.fl_str_mv 2023-12-18
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Texto
Texto
info:eu-repo/semantics/other
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16367
10.15628/holos.2023.16367
url http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16367
identifier_str_mv 10.15628/holos.2023.16367
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16367/3860
http://www2.ifrn.edu.br/ojs/index.php/HOLOS/article/view/16367/3861
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.coverage.none.fl_str_mv Aquatic environments contaminated with herbicides
Ambientes acuáticos contaminados con herbicidas
Ambientes aquáticos contaminados com herbicidas
dc.publisher.none.fl_str_mv Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte
publisher.none.fl_str_mv Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte
dc.source.none.fl_str_mv HOLOS; v. 5 n. 39 (2023): v.5 (2023)
1807-1600
reponame:Holos
instname:Instituto Federal do Rio Grande do Norte (IFRN)
instacron:IFRN
instname_str Instituto Federal do Rio Grande do Norte (IFRN)
instacron_str IFRN
institution IFRN
reponame_str Holos
collection Holos
repository.name.fl_str_mv Holos - Instituto Federal do Rio Grande do Norte (IFRN)
repository.mail.fl_str_mv holos@ifrn.edu.br||jyp.leite@ifrn.edu.br||propi@ifrn.edu.br
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