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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
12/12/2024 |
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Data da última atualização: |
13/12/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALVARENGA, A. D.; ANDRE, R. S.; ALVES, A. L. M. M.; CORREA, D. S. |
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Afiliação: |
FEDERAL UNIVERSITY OF SAO CARLOS (UFSCAR); RAFAELA S. ANDRE, UNIVERSIDADE FEDERAL DE SÃO CARLOS; FEDERAL UNIVERSITY OF SAO CARLOS (UFSCAR); DANIEL SOUZA CORREA, CNPDIA. |
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Título: |
Optimization of polyvinylpyrrolidone-SiO2 microfiber membranes for efficient water purification. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Journal of Water Process Engineering v. 67, 106119, 2024. |
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Páginas: |
1 - 14 |
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ISSN: |
2214-7144 |
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DOI: |
https://doi.org/10.1016/j.jwpe.2024.106119 |
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Idioma: |
Inglês |
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Conteúdo: |
Efficient removal of persistent organic pollutants from water remains a significant challenge for conventional water treatment methods. Materials containing carbon and/or SiO2 have demonstrated remarkable adsorption capacities for these pollutants. In this study, we explore the combination of carbonaceous structures and SiO2 through calcination (200 ◦C to 500 ◦C) of microfiber membranes produced with polyvinylpyrrolidone and tetraethyl orthosilicate by the solution blow spinning method, followed by chemical activation using NaOH. The developed membranes were thoroughly characterized to assess their physical and chemical properties. The performance of the ecofriendly microfiber membranes was evaluated in both batch and fixed-bed adsorption systems for methylene blue. Our findings revealed that chemical activation with NaOH effectively removed SiO2 from fibers, increasing the surface area and promoting oxidation of residual carbon, resulting in adsorption efficiency by at least 1000 %. Specifically, the fibers exhibited an average batch adsorption capacity of 873.3 mg/g, with a maximum capacity reaching 1862.4 mg/g. Fixed bed adsorption achieved 273.6 mg/g. Besides, the membrane was also tested for other organic pollutants and metal ions. The production cost of these microfibers was US$1.82/g. The strategy employed in this study, involving the creation of pores and increasing the surface area of fibers proved to be a promising approach for removing dyes and can be expanded to other water pollutants. MenosEfficient removal of persistent organic pollutants from water remains a significant challenge for conventional water treatment methods. Materials containing carbon and/or SiO2 have demonstrated remarkable adsorption capacities for these pollutants. In this study, we explore the combination of carbonaceous structures and SiO2 through calcination (200 ◦C to 500 ◦C) of microfiber membranes produced with polyvinylpyrrolidone and tetraethyl orthosilicate by the solution blow spinning method, followed by chemical activation using NaOH. The developed membranes were thoroughly characterized to assess their physical and chemical properties. The performance of the ecofriendly microfiber membranes was evaluated in both batch and fixed-bed adsorption systems for methylene blue. Our findings revealed that chemical activation with NaOH effectively removed SiO2 from fibers, increasing the surface area and promoting oxidation of residual carbon, resulting in adsorption efficiency by at least 1000 %. Specifically, the fibers exhibited an average batch adsorption capacity of 873.3 mg/g, with a maximum capacity reaching 1862.4 mg/g. Fixed bed adsorption achieved 273.6 mg/g. Besides, the membrane was also tested for other organic pollutants and metal ions. The production cost of these microfibers was US$1.82/g. The strategy employed in this study, involving the creation of pores and increasing the surface area of fibers proved to be a promising approach for removing dyes and can be expanded to ... Mostrar Tudo |
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Palavras-Chave: |
Batch adsorption; Microfibers; SiO2 solubilization; Solution blow spinning. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02273naa a2200241 a 4500
001 2170608
005 2024-12-13
008 2024 bl uuuu u00u1 u #d
022 $a2214-7144
024 7 $ahttps://doi.org/10.1016/j.jwpe.2024.106119$2DOI
100 1 $aALVARENGA, A. D.
245 $aOptimization of polyvinylpyrrolidone-SiO2 microfiber membranes for efficient water purification.$h[electronic resource]
260 $c2024
300 $a1 - 14
520 $aEfficient removal of persistent organic pollutants from water remains a significant challenge for conventional water treatment methods. Materials containing carbon and/or SiO2 have demonstrated remarkable adsorption capacities for these pollutants. In this study, we explore the combination of carbonaceous structures and SiO2 through calcination (200 ◦C to 500 ◦C) of microfiber membranes produced with polyvinylpyrrolidone and tetraethyl orthosilicate by the solution blow spinning method, followed by chemical activation using NaOH. The developed membranes were thoroughly characterized to assess their physical and chemical properties. The performance of the ecofriendly microfiber membranes was evaluated in both batch and fixed-bed adsorption systems for methylene blue. Our findings revealed that chemical activation with NaOH effectively removed SiO2 from fibers, increasing the surface area and promoting oxidation of residual carbon, resulting in adsorption efficiency by at least 1000 %. Specifically, the fibers exhibited an average batch adsorption capacity of 873.3 mg/g, with a maximum capacity reaching 1862.4 mg/g. Fixed bed adsorption achieved 273.6 mg/g. Besides, the membrane was also tested for other organic pollutants and metal ions. The production cost of these microfibers was US$1.82/g. The strategy employed in this study, involving the creation of pores and increasing the surface area of fibers proved to be a promising approach for removing dyes and can be expanded to other water pollutants.
653 $aBatch adsorption
653 $aMicrofibers
653 $aSiO2 solubilization
653 $aSolution blow spinning
700 1 $aANDRE, R. S.
700 1 $aALVES, A. L. M. M.
700 1 $aCORREA, D. S.
773 $tJournal of Water Process Engineering$gv. 67, 106119, 2024.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| Registros recuperados : 7 | |
| 1. |  | SARTORI, W. W.; SILVA, A. L. da; TARDIN, F. D.; SILVA, V. Q. R. da; SANTOS, C. V. dos; ROTTA, G. W.; CARDOSO, W. S.; MORALES, M. M. Geração de energia a partir de sorgo biomassa e capim elefante com adição de óleos residuais. Revista Científica Intelletto, Venda Nova do Imigrante, v. 2, n. 1, p. 112-116, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Agrossilvipastoril; Embrapa Florestas; Embrapa Milho e Sorgo. |
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| 2. | | SARTORI, W. W.; SILVA, A. L. da; TARDIN, F. D.; SILVA, V. Q. R. da; SANTOS, C. V. dos; ROTTA, G. W.; MORALES, M. M. Geração de energia a partir de sorgo biomassa e capim elefante com adição de óleos residuais. In: CONGRESSO NACIONAL DE MILHO E SORGO, 31., 2016, Bento Gonçalves. Milho e sorgo: inovações, mercados e segurança alimentar: anais. Sete Lagoas: Associação Brasileira de Milho e Sorgo, 2016.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 3. | | SILVA, A. L. da; EDVAN, R. L.; BEZERRA, L. R.; RATKE, R. F.; RODRIGUES, J. A. S.; AMORIM, D. S.; NASCIMENTO, R. R. do; ARAÚJO, M. J. de. Chemical composition and in situ degradability of silages from dualpurpose sorghum hybrids. Semina: Ciências Agrárias, Londrina, v. 40, n. 4, p. 1565-1576, jul./ago. 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 4. | | SPONCHIADO, S.; ALMEIDA, W. H. de; TARDIN, F. D.; PARRELLA, R. A. da C.; SILVA, A. L. da; SILVA, R. A. da. Potencial da utilização do sorgo biomassa para a recuperação de lavras garimpeiras abandonadas na divisa do Mato Grosso com o Pará. In: CONGRESSO NACIONAL DE MILHO E SORGO, 31., 2016, Bento Gonçalves. Milho e sorgo: inovações, mercados e segurança alimentar: anais. Sete Lagoas: Associação Brasileira de Milho e Sorgo, 2016.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 5. | | MORALES, M. M.; TARDIN, F. D.; SILVA, V. Q. R. da; SARTORI, W. W.; SILVA, A. L. da; ROTTA, G. W.; PARRELLA, R. A. da C. Sorgo biomassa e capim elefante com adição de óleos residuais para geração de energia. In: FARIAS NETO, A. L. de; NASCIMENTO, A. F. do; ROSSONI, A. L.; MAGALHÃES, C. A. de S.; ITUASSU, D. R.; HOOGERHEIDE, E. S. S.; IKEDA, F. S.; FERNANDES JUNIOR, F.; FARIA, G. R.; ISERNHAGEN, I.; VENDRUSCULO, L. G.; MORALES, M. M.; CARNEVALLI, R. A. (Ed.). Embrapa Agrossilvipastoril: primeiras contribuições para o desenvolvimento de uma agropecuária sustentável. Brasília, DF: Embrapa, 2019. pt. 2, cap. 3, p. 109-113.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Agrossilvipastoril; Embrapa Florestas; Embrapa Milho e Sorgo. |
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| 6. | | SILVA, A. L. da; TARDIN, F. D.; ROTTA, G. W.; BALDONI, A. B.; BARELLI, M. A. A.; SILVA, A. F. da; GONÇALVES, D. R.; SILVA, F. B.; RIBEIRO, J. R. D.; PARRELLA, R. A. da C. Characterization of biomass sorghum cultivars aiming to generate energy for the north region of Mato Grosso, Brazil. Nativa, Sinop, v. 4, n. 3, p. 175-178, mai./jun. 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Agrossilvipastoril; Embrapa Milho e Sorgo. |
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| 7. | | SILVA, A. L. da; TARDIN, F. D.; ROTTA, G. W.; SILVA, A. F. da; PERES, L.; BARROS, F.; COSTA, A.; RIBEIRO, J. R. D.; PARRELA, R. A. da C. Caracterização de cultivares de sorgo biomassa visando a geração de energia para a região Norte de Mato Grosso. In: JORNADA ACADÊMICA DE ENGENHARIA AGRÍCOLA E AMBIENTAL, 4., 2015, Sinop. [Anais]. Sinop: Universidade Federal de Mato Grosso, 2015.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 7 | |
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