Preparation and characterization of steam and CO2 activated carbon from Brazil nut shell
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/64438 |
Resumo: | Activated carbon is a porous material with several industrial applications. In this research, brazil nut shell was used to produce activated carbon, a promising raw material based on its low cost and high quality. Also, nut processing generates an extensive amount of waste, requiring proper disposal. The carbon was produced at temperatures of 600, 700, and 800 °C and activated by physical method using steam or CO2. Yield was calculated, and the activated carbon was analyzed according to the following physical-chemical parameters: water content, volatile material, fixed carbon, ash, apparent density, and pH. Infrared spectroscopy and BET adsorption isotherms were also performed. The fixed carbon contents of the carbons produced at 700 and 800 °C remained above 84%. The pH values characterized them as basic. The surface areas of the carbon obtained at 800 °C were 397 ± 8 m2 g–1 and 325 ± 7 m2 g–1 in those which were activated by steam and CO2, respectively. |
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Preparation and characterization of steam and CO2 activated carbon from Brazil nut shellActivated carbonActivation methodAdsorption. Agricultural SciencesActivated carbon is a porous material with several industrial applications. In this research, brazil nut shell was used to produce activated carbon, a promising raw material based on its low cost and high quality. Also, nut processing generates an extensive amount of waste, requiring proper disposal. The carbon was produced at temperatures of 600, 700, and 800 °C and activated by physical method using steam or CO2. Yield was calculated, and the activated carbon was analyzed according to the following physical-chemical parameters: water content, volatile material, fixed carbon, ash, apparent density, and pH. Infrared spectroscopy and BET adsorption isotherms were also performed. The fixed carbon contents of the carbons produced at 700 and 800 °C remained above 84%. The pH values characterized them as basic. The surface areas of the carbon obtained at 800 °C were 397 ± 8 m2 g–1 and 325 ± 7 m2 g–1 in those which were activated by steam and CO2, respectively.Carvão ativado é um material poroso com várias aplicações industriais. Neste trabalho foi utilizada a casca da castanha-do-brasil para sua produção, matéria-prima promissora por possuir baixo custo e alta qualidade. Além disso, o beneficiamento da amêndoa gera grande quantidade de resíduo, necessitando de destinação adequada. O carvão foi produzido o carvão nas temperaturas de 600, 700 e 800 °C e ativado pelo método físico utilizando vapor d’água ou CO2. O rendimento foi calculado e o carvão ativado foi analisado de acordo com os seguintes parâmetros físico-químicas: teor de água, material volátil, carbono fixo, cinzas, densidade, pH. Também foram realizadas a espectroscopia de infravermelho e as isotermas de adsorção de BET. Os teores de carbono fixo dos carvões produzidos à 700 e 800 °C permaneceram acima de 84%. Os valores de pH os caracterizam como básicos. As áreas superficiais dos carvões obtidos em 800 °C foram de 397 ± 8 m2 g–1 e de 325 ± 7 m2 g–1 nos ativados com vapor d’água e CO2 respectivamente.Universidade Federal de Uberlândia2023-03-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/6443810.14393/BJ-v39n0a2023-64438Bioscience Journal ; Vol. 39 (2023): Continuous Publication; e39054Bioscience Journal ; v. 39 (2023): Continuous Publication; e390541981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/64438/35868Brazil; Contemporary Copyright (c) 2023 Pryscila Machado de Castro, Stela Regina Ferrarini, Michelle da Silva Ferreira Rimoli, Aloir Antônio Merlo, Roberta Martins Nogueira, Evaldo Martins Pireshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccess Castro, Pryscila Machado deRegina Ferrarini, Stela Rimoli, Michelle da Silva Ferreira Merlo, Aloir AntônioNogueira, Roberta MartinsPires, Evaldo Martins2024-01-31T19:16:18Zoai:ojs.www.seer.ufu.br:article/64438Revistahttps://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 |
Preparation and characterization of steam and CO2 activated carbon from Brazil nut shell |
title |
Preparation and characterization of steam and CO2 activated carbon from Brazil nut shell |
spellingShingle |
Preparation and characterization of steam and CO2 activated carbon from Brazil nut shell Castro, Pryscila Machado de Activated carbon Activation method Adsorption. Agricultural Sciences |
title_short |
Preparation and characterization of steam and CO2 activated carbon from Brazil nut shell |
title_full |
Preparation and characterization of steam and CO2 activated carbon from Brazil nut shell |
title_fullStr |
Preparation and characterization of steam and CO2 activated carbon from Brazil nut shell |
title_full_unstemmed |
Preparation and characterization of steam and CO2 activated carbon from Brazil nut shell |
title_sort |
Preparation and characterization of steam and CO2 activated carbon from Brazil nut shell |
author |
Castro, Pryscila Machado de |
author_facet |
Castro, Pryscila Machado de Regina Ferrarini, Stela Rimoli, Michelle da Silva Ferreira Merlo, Aloir Antônio Nogueira, Roberta Martins Pires, Evaldo Martins |
author_role |
author |
author2 |
Regina Ferrarini, Stela Rimoli, Michelle da Silva Ferreira Merlo, Aloir Antônio Nogueira, Roberta Martins Pires, Evaldo Martins |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Castro, Pryscila Machado de Regina Ferrarini, Stela Rimoli, Michelle da Silva Ferreira Merlo, Aloir Antônio Nogueira, Roberta Martins Pires, Evaldo Martins |
dc.subject.por.fl_str_mv |
Activated carbon Activation method Adsorption. Agricultural Sciences |
topic |
Activated carbon Activation method Adsorption. Agricultural Sciences |
description |
Activated carbon is a porous material with several industrial applications. In this research, brazil nut shell was used to produce activated carbon, a promising raw material based on its low cost and high quality. Also, nut processing generates an extensive amount of waste, requiring proper disposal. The carbon was produced at temperatures of 600, 700, and 800 °C and activated by physical method using steam or CO2. Yield was calculated, and the activated carbon was analyzed according to the following physical-chemical parameters: water content, volatile material, fixed carbon, ash, apparent density, and pH. Infrared spectroscopy and BET adsorption isotherms were also performed. The fixed carbon contents of the carbons produced at 700 and 800 °C remained above 84%. The pH values characterized them as basic. The surface areas of the carbon obtained at 800 °C were 397 ± 8 m2 g–1 and 325 ± 7 m2 g–1 in those which were activated by steam and CO2, respectively. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-03-31 |
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/64438 10.14393/BJ-v39n0a2023-64438 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/64438 |
identifier_str_mv |
10.14393/BJ-v39n0a2023-64438 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/64438/35868 |
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; e39054 Bioscience Journal ; v. 39 (2023): Continuous Publication; e39054 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_ |
1797069065228910592 |