New alternative for adsorption of 2,4-dichlorophenoxyacetic acid herbicide (2,4-D)
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bioscience journal (Online) |
Texto Completo: | https://seer.ufu.br/index.php/biosciencejournal/article/view/64440 |
Resumo: | The adsorptive capacity of charcoal from the husk of the brazil nut fruit, called “ouriço” (the hard ball with nuts inside) for the herbicide dichlorophenoxyacetic acid (2,4-D) was evaluated. Activated carbons were produced from the brazil nut in a tubular oven at 800 °C and activated with CO2 or water steam. The specific surface area was determined by the Brunauer, Emmett and Teller (BET) method, demonstrating the mean density of micropores. Analysis of N2 adsorption/desorption isotherms was undertaken and the morphology of activated carbons was visualized by Scanning Microscopy (SEM). The activated carbons were successfully obtained and had a specific surface area of 395 m2.g-1 and 401 m2.g-1 after activation with either CO2 or water steam, respectively. The highest pore mean density occurred with a diameter of 1.17 nm for carbons activated in both atmospheres. The graph of the adsorption/desorption isotherms of N2 showed Type I isotherms, regardless of the activation atmosphere. The SEM analysis showed that, for both activation atmospheres, pore formation occurred in the shape of uniform honeycomb craters. Adsorption kinetics followed the pseudo-second order model, indicating chemisorption. Regardless of the activation atmosphere, the activated carbon from the brazil nut “ouriço”, was highly efficient for 2,4-D adsorption. |
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New alternative for adsorption of 2,4-dichlorophenoxyacetic acid herbicide (2,4-D)Activated charcoalBrazil nuts HerbicideMicropores. Agricultural SciencesBiological SciencesThe adsorptive capacity of charcoal from the husk of the brazil nut fruit, called “ouriço” (the hard ball with nuts inside) for the herbicide dichlorophenoxyacetic acid (2,4-D) was evaluated. Activated carbons were produced from the brazil nut in a tubular oven at 800 °C and activated with CO2 or water steam. The specific surface area was determined by the Brunauer, Emmett and Teller (BET) method, demonstrating the mean density of micropores. Analysis of N2 adsorption/desorption isotherms was undertaken and the morphology of activated carbons was visualized by Scanning Microscopy (SEM). The activated carbons were successfully obtained and had a specific surface area of 395 m2.g-1 and 401 m2.g-1 after activation with either CO2 or water steam, respectively. The highest pore mean density occurred with a diameter of 1.17 nm for carbons activated in both atmospheres. The graph of the adsorption/desorption isotherms of N2 showed Type I isotherms, regardless of the activation atmosphere. The SEM analysis showed that, for both activation atmospheres, pore formation occurred in the shape of uniform honeycomb craters. Adsorption kinetics followed the pseudo-second order model, indicating chemisorption. Regardless of the activation atmosphere, the activated carbon from the brazil nut “ouriço”, was highly efficient for 2,4-D adsorption.A capacidade adsortiva do carvão vegetal da casca da castanha-do-brasil, denominada “ouriço” para o herbicida ácido diclorofenoxiacético (2,4-D) foi avaliada. Os carvões ativados foram produzidos a partir da castanha-do-brasil em forno tubular a 800°C e ativados com CO2 ou vapor d'água. A área superficial específica foi determinada pelo método de Brunauer, Emmett e Teller (BET), demonstrando a maior intensidade dos microporos. A análise das isotermas de adsorção/dessorção de N2 foi realizada e a morfologia dos carvões ativados foi visualizado por Microscopia de Varredura (MEV). Os carvões ativados foram obtidos apresentaram área superficial específica de 395 m2g-1 e 401 m2g-1 após ativação com CO2 ou vapor d'água, respectivamente. A maior intensidade de poros ocorreu com diâmetro de 1,17 nm para carvões ativados em ambas as atmosferas. O gráfico das isotermas de adsorção/dessorção do N2 mostrou isotermas do Tipo I, independente da atmosfera de ativação. A análise MEV mostrou que, para ambas as atmosferas de ativação, a formação de poros ocorreu na forma de crateras de favo de mel uniformes. A cinética de adsorção seguiu o modelo de pseudo-segunda ordem, indicando quimissorção. Independentemente da atmosfera de ativação, o carvão ativado do ouriço da castanha-do-brasil, foi altamente eficiente na adsorção de 2,4-D. O carvão ativado com vapor d'água apresentou resultados superiores em relação à quantidade de herbicida adsorvido nos primeiros minutos.Universidade Federal de Uberlândia2023-08-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/6444010.14393/BJ-v39n0a2023-64440Bioscience Journal ; Vol. 39 (2023): Continuous Publication; e39091Bioscience Journal ; v. 39 (2023): Continuous Publication; e390911981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/64440/36724Brazil; Contemporary Copyright (c) 2023 Michelle Ferreira da Silva Rimoli, Roberta Martins Nogueira, Pryscila Machado de Catro, Aloir Antônio Merlo, Adilson Sinhorin, Jacqueline Kerkhoff, Stela Regina Ferrarini, Evaldo Martins Pireshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessRimoli, Michelle Ferreira da SilvaNogueira, Roberta MartinsCastro, Pryscila Machado deMerlo, Aloir AntônioSinhorin, AdilsonKerkhoff, JacquelineFerrarini, Stela ReginaPires, Evaldo Martins2024-01-31T19:16:18Zoai:ojs.www.seer.ufu.br:article/64440Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2024-01-31T19:16:18Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
New alternative for adsorption of 2,4-dichlorophenoxyacetic acid herbicide (2,4-D) |
title |
New alternative for adsorption of 2,4-dichlorophenoxyacetic acid herbicide (2,4-D) |
spellingShingle |
New alternative for adsorption of 2,4-dichlorophenoxyacetic acid herbicide (2,4-D) Rimoli, Michelle Ferreira da Silva Activated charcoal Brazil nuts Herbicide Micropores. Agricultural Sciences Biological Sciences |
title_short |
New alternative for adsorption of 2,4-dichlorophenoxyacetic acid herbicide (2,4-D) |
title_full |
New alternative for adsorption of 2,4-dichlorophenoxyacetic acid herbicide (2,4-D) |
title_fullStr |
New alternative for adsorption of 2,4-dichlorophenoxyacetic acid herbicide (2,4-D) |
title_full_unstemmed |
New alternative for adsorption of 2,4-dichlorophenoxyacetic acid herbicide (2,4-D) |
title_sort |
New alternative for adsorption of 2,4-dichlorophenoxyacetic acid herbicide (2,4-D) |
author |
Rimoli, Michelle Ferreira da Silva |
author_facet |
Rimoli, Michelle Ferreira da Silva Nogueira, Roberta Martins Castro, Pryscila Machado de Merlo, Aloir Antônio Sinhorin, Adilson Kerkhoff, Jacqueline Ferrarini, Stela Regina Pires, Evaldo Martins |
author_role |
author |
author2 |
Nogueira, Roberta Martins Castro, Pryscila Machado de Merlo, Aloir Antônio Sinhorin, Adilson Kerkhoff, Jacqueline Ferrarini, Stela Regina Pires, Evaldo Martins |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Rimoli, Michelle Ferreira da Silva Nogueira, Roberta Martins Castro, Pryscila Machado de Merlo, Aloir Antônio Sinhorin, Adilson Kerkhoff, Jacqueline Ferrarini, Stela Regina Pires, Evaldo Martins |
dc.subject.por.fl_str_mv |
Activated charcoal Brazil nuts Herbicide Micropores. Agricultural Sciences Biological Sciences |
topic |
Activated charcoal Brazil nuts Herbicide Micropores. Agricultural Sciences Biological Sciences |
description |
The adsorptive capacity of charcoal from the husk of the brazil nut fruit, called “ouriço” (the hard ball with nuts inside) for the herbicide dichlorophenoxyacetic acid (2,4-D) was evaluated. Activated carbons were produced from the brazil nut in a tubular oven at 800 °C and activated with CO2 or water steam. The specific surface area was determined by the Brunauer, Emmett and Teller (BET) method, demonstrating the mean density of micropores. Analysis of N2 adsorption/desorption isotherms was undertaken and the morphology of activated carbons was visualized by Scanning Microscopy (SEM). The activated carbons were successfully obtained and had a specific surface area of 395 m2.g-1 and 401 m2.g-1 after activation with either CO2 or water steam, respectively. The highest pore mean density occurred with a diameter of 1.17 nm for carbons activated in both atmospheres. The graph of the adsorption/desorption isotherms of N2 showed Type I isotherms, regardless of the activation atmosphere. The SEM analysis showed that, for both activation atmospheres, pore formation occurred in the shape of uniform honeycomb craters. Adsorption kinetics followed the pseudo-second order model, indicating chemisorption. Regardless of the activation atmosphere, the activated carbon from the brazil nut “ouriço”, was highly efficient for 2,4-D adsorption. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-08-18 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/64440 10.14393/BJ-v39n0a2023-64440 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/64440 |
identifier_str_mv |
10.14393/BJ-v39n0a2023-64440 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/64440/36724 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Brazil; Contemporary |
dc.publisher.none.fl_str_mv |
Universidade Federal de Uberlândia |
publisher.none.fl_str_mv |
Universidade Federal de Uberlândia |
dc.source.none.fl_str_mv |
Bioscience Journal ; Vol. 39 (2023): Continuous Publication; e39091 Bioscience Journal ; v. 39 (2023): Continuous Publication; e39091 1981-3163 reponame:Bioscience journal (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Bioscience journal (Online) |
collection |
Bioscience journal (Online) |
repository.name.fl_str_mv |
Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
biosciencej@ufu.br|| |
_version_ |
1797069065231007744 |