Oil removal from oil/water emulsion by Zeolitic Imidazolate Framework-8 (ZIF-8): A study of pH, and adsorption kinetic
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2021 |
| Outros Autores: | , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Research, Society and Development |
| Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/22162 |
Resumo: | Most traditional methods are only used to remove free oil from wastewater, and they are not efficient for separating oil-water emulsions. The adsorption separation process can be widely applied for the treatment of emulsions, mainly due to the cost and benefit of the process and the wide variety of materials that can be used as adsorbents, for example activated carbon, clays, zeolites, etc. Among the various types of porous materials called "Metal Organic Frameworks" (MOFs) are the zeolitic imidazolate (ZIFs) structures. The zeolitic structure of the ZIFs allows to exhibit high surface areas and thus to be promising adsorbents. To evaluate the adsorption capacity of ZIF-8 in the removal of emulsified oil, ZIF-8 was synthesized using Zn metal and as organic binder 2-methylimidazole (Hmim), dissolved in methanol at room temperature. ZIF-8 was characterized by X-ray diffraction (XRD) technique to determine the crystalline structure. To evaluate the capacity of the emulsified oil, a pH-influence test and chemical kinetics were determined. The best pH of the emulsion for removal was pH 6. The chemical kinetics performed at pH 6 presented the best fit with the pseudo-second model with correlation coefficient 0.93. According to the kinetic data, a removal percentage of 92.43% was found with only 30 min of removal. |
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Oil removal from oil/water emulsion by Zeolitic Imidazolate Framework-8 (ZIF-8): A study of pH, and adsorption kineticEliminación de aceite de la emulsión de aceite/agua mediante Zeolitic Imidazolate Framework-8 (ZIF-8): un estudio de pH y cinética de adsorciónRemoção de óleo da emulsão de óleo/água por Zeolitic Imidazolate Framework-8 (ZIF-8): Um estudo de pH e cinética de adsorçãoZeolitic imidazolate frameworksNanocristaisEmulsão óleo/águaAdsorçãoCinética.Zeolitic imidazolate frameworksNanocrystalsEmulsion oil/waterAdsorptionKinetics.Estructuras de imidazolato zeolíticoNanocristalesEmulsión de aceite / aguaAdsorciónCinética.Most traditional methods are only used to remove free oil from wastewater, and they are not efficient for separating oil-water emulsions. The adsorption separation process can be widely applied for the treatment of emulsions, mainly due to the cost and benefit of the process and the wide variety of materials that can be used as adsorbents, for example activated carbon, clays, zeolites, etc. Among the various types of porous materials called "Metal Organic Frameworks" (MOFs) are the zeolitic imidazolate (ZIFs) structures. The zeolitic structure of the ZIFs allows to exhibit high surface areas and thus to be promising adsorbents. To evaluate the adsorption capacity of ZIF-8 in the removal of emulsified oil, ZIF-8 was synthesized using Zn metal and as organic binder 2-methylimidazole (Hmim), dissolved in methanol at room temperature. ZIF-8 was characterized by X-ray diffraction (XRD) technique to determine the crystalline structure. To evaluate the capacity of the emulsified oil, a pH-influence test and chemical kinetics were determined. The best pH of the emulsion for removal was pH 6. The chemical kinetics performed at pH 6 presented the best fit with the pseudo-second model with correlation coefficient 0.93. According to the kinetic data, a removal percentage of 92.43% was found with only 30 min of removal.La mayoría de los métodos tradicionales solo se utilizan para eliminar el aceite libre de las aguas residuales y no son eficaces para separar las emulsiones de aceite y agua. El proceso de separación por adsorción se puede aplicar ampliamente para el tratamiento de emulsiones, principalmente por el costo y beneficio del proceso y la amplia variedad de materiales que pueden usarse como adsorbentes, por ejemplo carbón activado, arcillas, zeolitas, etc. Entre los varios tipos de materiales porosos denominados "estructuras orgánicas metálicas" (MOF) son las estructuras de imidazolato zeolítico (ZIF). La estructura zeolítica de los ZIF permite exhibir áreas superficiales elevadas y, por lo tanto, ser adsorbentes prometedores. Para evaluar la capacidad de adsorción de ZIF-8 en la eliminación de aceite emulsionado, se sintetizó ZIF-8 utilizando Zn metálico y como aglutinante orgánico 2-metilimidazol (Hmim), disuelto en metanol a temperatura ambiente. ZIF-8 se caracterizó mediante la técnica de difracción de rayos X (XRD) para determinar la estructura cristalina. Para evaluar la capacidad del aceite emulsionado, se determinó una prueba de influencia del pH y la cinética química. El mejor pH de la emulsión para remoción fue pH 6. La cinética química realizada a pH 6 presentó el mejor ajuste con el modelo de pseudo-segundo con coeficiente de correlación 0.93. Según los datos cinéticos, se encontró un porcentaje de remoción del 92.43% con solo 30 min de remoción.A maioria dos métodos tradicionais são usados apenas para remover óleo livre de águas residuais e não são eficientes para separar emulsões de óleo-água. O processo de separação por adsorção pode ser amplamente aplicado para o tratamento de emulsões, principalmente pelo custo e benefício do processo e pela grande variedade de materiais que podem ser utilizados como adsorventes, por exemplo, carvão ativado, argilas, zeólitas, etc. vários tipos de materiais porosos chamados "Estruturas Metálorgânicas" (MOFs) são as estruturas de imidazolato zeolítico (ZIFs). A estrutura zeolítica dos ZIFs permite exibir altas áreas superficiais específicas e, portanto, ser adsorventes promissores. Para avaliar a capacidade de adsorção do ZIF-8 na remoção do óleo emulsionado, o ZIF-8 foi sintetizado utilizando o Zn metálico e como ligante orgânico 2-metilimidazol (Hmim), dissolvido em metanol à temperatura ambiente. O ZIF-8 foi caracterizado pela técnica de difração de raios X (XRD) para determinar a estrutura cristalina. Para avaliar a capacidade do óleo emulsionado, um teste de influência do pH e cinética química foram determinados. O melhor pH da emulsão para remoção foi pH 6. A cinética química realizada em pH 6 apresentou o melhor ajuste com o modelo de pseudo-segundo com coeficiente de correlação de 0,93. De acordo com os dados cinéticos, um percentual de remoção de 92,43% foi encontrado com apenas 30 minutos de remoção.Research, Society and Development2021-11-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/2216210.33448/rsd-v10i14.22162Research, Society and Development; Vol. 10 No. 14; e444101422162Research, Society and Development; Vol. 10 Núm. 14; e444101422162Research, Society and Development; v. 10 n. 14; e4441014221622525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/22162/19767Copyright (c) 2021 Thianne Silva Batista Barbosa ; Thiago Rodrigo Barbosa Barros ; Tellys Lins Almeida Barbosa; Diogo Pierre Alves Rodrigues ; Meiry Gláucia Freire Rodrigueshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessBarbosa , Thianne Silva Batista Barros , Thiago Rodrigo Barbosa Barbosa, Tellys Lins Almeida Rodrigues , Diogo Pierre AlvesRodrigues, Meiry Gláucia Freire 2021-12-04T11:48:39Zoai:ojs.pkp.sfu.ca:article/22162Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:41:23.995007Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
| dc.title.none.fl_str_mv |
Oil removal from oil/water emulsion by Zeolitic Imidazolate Framework-8 (ZIF-8): A study of pH, and adsorption kinetic Eliminación de aceite de la emulsión de aceite/agua mediante Zeolitic Imidazolate Framework-8 (ZIF-8): un estudio de pH y cinética de adsorción Remoção de óleo da emulsão de óleo/água por Zeolitic Imidazolate Framework-8 (ZIF-8): Um estudo de pH e cinética de adsorção |
| title |
Oil removal from oil/water emulsion by Zeolitic Imidazolate Framework-8 (ZIF-8): A study of pH, and adsorption kinetic |
| spellingShingle |
Oil removal from oil/water emulsion by Zeolitic Imidazolate Framework-8 (ZIF-8): A study of pH, and adsorption kinetic Barbosa , Thianne Silva Batista Zeolitic imidazolate frameworks Nanocristais Emulsão óleo/água Adsorção Cinética. Zeolitic imidazolate frameworks Nanocrystals Emulsion oil/water Adsorption Kinetics. Estructuras de imidazolato zeolítico Nanocristales Emulsión de aceite / agua Adsorción Cinética. |
| title_short |
Oil removal from oil/water emulsion by Zeolitic Imidazolate Framework-8 (ZIF-8): A study of pH, and adsorption kinetic |
| title_full |
Oil removal from oil/water emulsion by Zeolitic Imidazolate Framework-8 (ZIF-8): A study of pH, and adsorption kinetic |
| title_fullStr |
Oil removal from oil/water emulsion by Zeolitic Imidazolate Framework-8 (ZIF-8): A study of pH, and adsorption kinetic |
| title_full_unstemmed |
Oil removal from oil/water emulsion by Zeolitic Imidazolate Framework-8 (ZIF-8): A study of pH, and adsorption kinetic |
| title_sort |
Oil removal from oil/water emulsion by Zeolitic Imidazolate Framework-8 (ZIF-8): A study of pH, and adsorption kinetic |
| author |
Barbosa , Thianne Silva Batista |
| author_facet |
Barbosa , Thianne Silva Batista Barros , Thiago Rodrigo Barbosa Barbosa, Tellys Lins Almeida Rodrigues , Diogo Pierre Alves Rodrigues, Meiry Gláucia Freire |
| author_role |
author |
| author2 |
Barros , Thiago Rodrigo Barbosa Barbosa, Tellys Lins Almeida Rodrigues , Diogo Pierre Alves Rodrigues, Meiry Gláucia Freire |
| author2_role |
author author author author |
| dc.contributor.author.fl_str_mv |
Barbosa , Thianne Silva Batista Barros , Thiago Rodrigo Barbosa Barbosa, Tellys Lins Almeida Rodrigues , Diogo Pierre Alves Rodrigues, Meiry Gláucia Freire |
| dc.subject.por.fl_str_mv |
Zeolitic imidazolate frameworks Nanocristais Emulsão óleo/água Adsorção Cinética. Zeolitic imidazolate frameworks Nanocrystals Emulsion oil/water Adsorption Kinetics. Estructuras de imidazolato zeolítico Nanocristales Emulsión de aceite / agua Adsorción Cinética. |
| topic |
Zeolitic imidazolate frameworks Nanocristais Emulsão óleo/água Adsorção Cinética. Zeolitic imidazolate frameworks Nanocrystals Emulsion oil/water Adsorption Kinetics. Estructuras de imidazolato zeolítico Nanocristales Emulsión de aceite / agua Adsorción Cinética. |
| description |
Most traditional methods are only used to remove free oil from wastewater, and they are not efficient for separating oil-water emulsions. The adsorption separation process can be widely applied for the treatment of emulsions, mainly due to the cost and benefit of the process and the wide variety of materials that can be used as adsorbents, for example activated carbon, clays, zeolites, etc. Among the various types of porous materials called "Metal Organic Frameworks" (MOFs) are the zeolitic imidazolate (ZIFs) structures. The zeolitic structure of the ZIFs allows to exhibit high surface areas and thus to be promising adsorbents. To evaluate the adsorption capacity of ZIF-8 in the removal of emulsified oil, ZIF-8 was synthesized using Zn metal and as organic binder 2-methylimidazole (Hmim), dissolved in methanol at room temperature. ZIF-8 was characterized by X-ray diffraction (XRD) technique to determine the crystalline structure. To evaluate the capacity of the emulsified oil, a pH-influence test and chemical kinetics were determined. The best pH of the emulsion for removal was pH 6. The chemical kinetics performed at pH 6 presented the best fit with the pseudo-second model with correlation coefficient 0.93. According to the kinetic data, a removal percentage of 92.43% was found with only 30 min of removal. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021-11-09 |
| 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://rsdjournal.org/index.php/rsd/article/view/22162 10.33448/rsd-v10i14.22162 |
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https://rsdjournal.org/index.php/rsd/article/view/22162 |
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10.33448/rsd-v10i14.22162 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
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https://rsdjournal.org/index.php/rsd/article/view/22162/19767 |
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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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application/pdf |
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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. 14; e444101422162 Research, Society and Development; Vol. 10 Núm. 14; e444101422162 Research, Society and Development; v. 10 n. 14; e444101422162 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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UNIFEI |
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UNIFEI |
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Research, Society and Development |
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Research, Society and Development |
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Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
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rsd.articles@gmail.com |
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