Adsorption of the basic Malachite Green dye via activated carbon from the açaí seed
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2021 |
| Outros Autores: | , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | por |
| Título da fonte: | Research, Society and Development |
| Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/12871 |
Resumo: | Synthetic dyes are widely used in various industrial sectors, generating a potential pollutant to water bodies. Thus, with a great need to carry out an adequate treatment of this type of effluent, this study observed the efficiency in the removal of the malachite green dye using the activated carbon (AC) produced from the açaí stone (Euterpe oleracea), as an adsorbent. commonly generated in the Amazon region. In the production of AC two activating agents were used, Phosphoric Acid (H3PO4), being called CAG-A and sodium hydroxide (NaOH), being called CAG-B. The AC characterization was performed through FTIR, ATG/ATD, BET area, and SEM/EDS analyzes. To determine the adsorption capacity as well as to study and understand the mechanisms and controlling steps of the adsorption process, the experimental data were adjusted to the mathematical models of Langmuir and Freundlich and to the kinetic models of Pseudo-First Order, Pseudo-Second Order and Intraparticle Diffusion. The analysis for the characterization of the AC's indicated the presence of acid functional groups, negatively charging the surface of CAG-A and CAG-B, favoring the adsorption process, since the adsorbate in this study is a cationic dye. The experimental data for both CAG-A and CAG-B best fit the Freundlich isotherm, as well as the kinetic model of Pseudo-Second Order had better fit on both coals. The adsorption of malachite green in CAG-A and CAG-B proved to be efficient for ACs, obtaining values of qmax = 113.9 mg/g and 668.88 mg/g respectively. |
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Adsorption of the basic Malachite Green dye via activated carbon from the açaí seedAdsorción del tinte verde de malaquita básico a través de carbón activado del semilla de açaíAdsorção do corante básico Verde Malaquita via carvão ativado a partir do caroço de açaíIsotermasCinéticaCorantes.IsotermasCinéticaTintes.IsothermsKineticsDyes.Synthetic dyes are widely used in various industrial sectors, generating a potential pollutant to water bodies. Thus, with a great need to carry out an adequate treatment of this type of effluent, this study observed the efficiency in the removal of the malachite green dye using the activated carbon (AC) produced from the açaí stone (Euterpe oleracea), as an adsorbent. commonly generated in the Amazon region. In the production of AC two activating agents were used, Phosphoric Acid (H3PO4), being called CAG-A and sodium hydroxide (NaOH), being called CAG-B. The AC characterization was performed through FTIR, ATG/ATD, BET area, and SEM/EDS analyzes. To determine the adsorption capacity as well as to study and understand the mechanisms and controlling steps of the adsorption process, the experimental data were adjusted to the mathematical models of Langmuir and Freundlich and to the kinetic models of Pseudo-First Order, Pseudo-Second Order and Intraparticle Diffusion. The analysis for the characterization of the AC's indicated the presence of acid functional groups, negatively charging the surface of CAG-A and CAG-B, favoring the adsorption process, since the adsorbate in this study is a cationic dye. The experimental data for both CAG-A and CAG-B best fit the Freundlich isotherm, as well as the kinetic model of Pseudo-Second Order had better fit on both coals. The adsorption of malachite green in CAG-A and CAG-B proved to be efficient for ACs, obtaining values of qmax = 113.9 mg/g and 668.88 mg/g respectively.Los tintes sintéticos se utilizan ampliamente en diversos sectores industriales, generando un potencial contaminante para los cuerpos de agua. Así, ante la gran necesidad de realizar un tratamiento adecuado de este tipo de efluentes, este estudio observó la eficiencia en la remoción del tinte Malaquita Verde utilizando el carbón activado (CA) producido a partir de la piedra de açaí (Euterpe oleracea), como adsorbente. comúnmente generada en la región amazónica. En la producción de CA se utilizaron dos agentes activantes, el Ácido Fosfórico (H3PO4), que se denomina CAG-A y el Hidróxido de Sodio (NaOH), que se denomina CAG-B. La caracterización de CA se realizó mediante análisis FTIR, ATG/ATD, área BET y MEV/EDS. Para determinar la capacidad de adsorción, así como para estudiar y comprender los mecanismos y pasos de control del proceso de adsorción, los datos experimentales se ajustaron a los modelos matemáticos de Langmuir y Freundlich y a los modelos cinéticos de Pseudo-Primer Orden, Pseudo-Segundo Orden. y difusión intrapartícula. El análisis para la caracterización de las CAs indicó la presencia de grupos funcionales ácidos, cargando negativamente la superficie de CAG-A y CAG-B, favoreciendo el proceso de adsorción, ya que el adsorbato en este estudio es un colorante catiónico. Los datos experimentales para CAG-A y CAG-B se ajustan mejor a la isoterma de Freundlich, así como el modelo cinético de Pseudo-Segundo Orden tuvo un mejor ajuste en ambos carbones. La adsorción de Verde Malaquita en CAG-A y CAG-B resultó ser eficiente para CAs, obteniendo valores de qmax = 113.9 mg/g y 668.88 mg/g respectivamente.Os corantes sintéticos são amplamente utilizados nos diversos seguimentos industriais, gerando um potencial poluente aos corpos hídricos. Desta forma, existindo grande necessidade de realizar-se tratamento adequado desse tipo de efluente, este estudo observou a eficiência na remoção do corante Verde Malaquita utilizando como adsorvente o Carvão Ativado (CA) produzido a partir do caroço de açaí (Euterpe oleracea), resíduo comumente gerado na região Amazônica. Na produção do CA foram utilizados dois agentes ativantes, Ácido Fosfórico (H3PO4), sendo denominado de CAG-A e o Hidróxido de sódio (NaOH), sendo denominado de CAG-B. A caracterização do CA foi realizada através das análises FTIR, ATG/ATD, área BET, e MEV/EDS. Para determinação da capacidade de adsorção bem como estudar e entender os mecanismos e etapas controladoras do processo de adsorção, os dados experimentais foram ajustados aos modelos matemáticos de Langmuir e Freundlich e aos modelos cinéticos de Pseudo-Primeira Ordem, Pseudo-Segunda Ordem e Difusão Intrapartícula. As análises para caracterização dos CA’s indicaram a presença de grupos funcionais ácidos, carregando negativamente a superfície de CAG-A e CAG-B, favorecendo o processo de adsorção, uma vez que o adsorbato deste estudo é um corante catiônico. Os dados experimentais tanto pra CAG-A como para CAG-B melhor se ajustaram à isoterma de Freundlich, bem como também, o modelo cinético de Pseudo-Segunda Ordem teve melhor ajuste em ambos os carvões. A adsorção do Verde Malaquita em CAG-A e CAG-B mostrou-se eficiente para os CA’s, obtendo-se valores de qmax = 113,9 mg/g e 668,88 mg/g respectivamente.Research, Society and Development2021-02-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1287110.33448/rsd-v10i2.12871Research, Society and Development; Vol. 10 No. 2; e49110212871Research, Society and Development; Vol. 10 Núm. 2; e49110212871Research, Society and Development; v. 10 n. 2; e491102128712525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/12871/11522Copyright (c) 2021 Antonio Almir Oliveira de Sousa; Thalia Silva Oliveira; Luiz Eduardo Chaves de Azevedo; João Rodrigo Coimbra Nobre; Wilson Fernando Rodrigues Stefanelli; Thiago Antônio Paixão de Sousa Costa; João Paulo Sousa da Silva; Ana Vitoria Silva Barral https://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessSousa, Antonio Almir Oliveira deOliveira, Thalia Silva Azevedo, Luiz Eduardo Chaves de Nobre, João Rodrigo Coimbra Stefanelli, Wilson Fernando Rodrigues Costa, Thiago Antônio Paixão de Sousa Silva, João Paulo Sousa da Barral , Ana Vitoria Silva 2021-03-02T09:32:39Zoai:ojs.pkp.sfu.ca:article/12871Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:34:20.523966Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
| dc.title.none.fl_str_mv |
Adsorption of the basic Malachite Green dye via activated carbon from the açaí seed Adsorción del tinte verde de malaquita básico a través de carbón activado del semilla de açaí Adsorção do corante básico Verde Malaquita via carvão ativado a partir do caroço de açaí |
| title |
Adsorption of the basic Malachite Green dye via activated carbon from the açaí seed |
| spellingShingle |
Adsorption of the basic Malachite Green dye via activated carbon from the açaí seed Sousa, Antonio Almir Oliveira de Isotermas Cinética Corantes. Isotermas Cinética Tintes. Isotherms Kinetics Dyes. |
| title_short |
Adsorption of the basic Malachite Green dye via activated carbon from the açaí seed |
| title_full |
Adsorption of the basic Malachite Green dye via activated carbon from the açaí seed |
| title_fullStr |
Adsorption of the basic Malachite Green dye via activated carbon from the açaí seed |
| title_full_unstemmed |
Adsorption of the basic Malachite Green dye via activated carbon from the açaí seed |
| title_sort |
Adsorption of the basic Malachite Green dye via activated carbon from the açaí seed |
| author |
Sousa, Antonio Almir Oliveira de |
| author_facet |
Sousa, Antonio Almir Oliveira de Oliveira, Thalia Silva Azevedo, Luiz Eduardo Chaves de Nobre, João Rodrigo Coimbra Stefanelli, Wilson Fernando Rodrigues Costa, Thiago Antônio Paixão de Sousa Silva, João Paulo Sousa da Barral , Ana Vitoria Silva |
| author_role |
author |
| author2 |
Oliveira, Thalia Silva Azevedo, Luiz Eduardo Chaves de Nobre, João Rodrigo Coimbra Stefanelli, Wilson Fernando Rodrigues Costa, Thiago Antônio Paixão de Sousa Silva, João Paulo Sousa da Barral , Ana Vitoria Silva |
| author2_role |
author author author author author author author |
| dc.contributor.author.fl_str_mv |
Sousa, Antonio Almir Oliveira de Oliveira, Thalia Silva Azevedo, Luiz Eduardo Chaves de Nobre, João Rodrigo Coimbra Stefanelli, Wilson Fernando Rodrigues Costa, Thiago Antônio Paixão de Sousa Silva, João Paulo Sousa da Barral , Ana Vitoria Silva |
| dc.subject.por.fl_str_mv |
Isotermas Cinética Corantes. Isotermas Cinética Tintes. Isotherms Kinetics Dyes. |
| topic |
Isotermas Cinética Corantes. Isotermas Cinética Tintes. Isotherms Kinetics Dyes. |
| description |
Synthetic dyes are widely used in various industrial sectors, generating a potential pollutant to water bodies. Thus, with a great need to carry out an adequate treatment of this type of effluent, this study observed the efficiency in the removal of the malachite green dye using the activated carbon (AC) produced from the açaí stone (Euterpe oleracea), as an adsorbent. commonly generated in the Amazon region. In the production of AC two activating agents were used, Phosphoric Acid (H3PO4), being called CAG-A and sodium hydroxide (NaOH), being called CAG-B. The AC characterization was performed through FTIR, ATG/ATD, BET area, and SEM/EDS analyzes. To determine the adsorption capacity as well as to study and understand the mechanisms and controlling steps of the adsorption process, the experimental data were adjusted to the mathematical models of Langmuir and Freundlich and to the kinetic models of Pseudo-First Order, Pseudo-Second Order and Intraparticle Diffusion. The analysis for the characterization of the AC's indicated the presence of acid functional groups, negatively charging the surface of CAG-A and CAG-B, favoring the adsorption process, since the adsorbate in this study is a cationic dye. The experimental data for both CAG-A and CAG-B best fit the Freundlich isotherm, as well as the kinetic model of Pseudo-Second Order had better fit on both coals. The adsorption of malachite green in CAG-A and CAG-B proved to be efficient for ACs, obtaining values of qmax = 113.9 mg/g and 668.88 mg/g respectively. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021-02-25 |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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https://rsdjournal.org/index.php/rsd/article/view/12871 10.33448/rsd-v10i2.12871 |
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https://rsdjournal.org/index.php/rsd/article/view/12871 |
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10.33448/rsd-v10i2.12871 |
| dc.language.iso.fl_str_mv |
por |
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por |
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https://rsdjournal.org/index.php/rsd/article/view/12871/11522 |
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https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
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https://creativecommons.org/licenses/by/4.0 |
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openAccess |
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Research, Society and Development |
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Research, Society and Development |
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Research, Society and Development; Vol. 10 No. 2; e49110212871 Research, Society and Development; Vol. 10 Núm. 2; e49110212871 Research, Society and Development; v. 10 n. 2; e49110212871 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
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Universidade Federal de Itajubá (UNIFEI) |
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Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
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