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Registro Completo |
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
28/09/2022 |
Data da última atualização: |
28/09/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ALVARENGA, A. D.; ANDRE, R. S.; TEODORO, K. B. R.; SCHNEIDER, R.; MERCANTE, L. A.; CORREA, D. S. |
Afiliação: |
DANIEL SOUZA CORREA, CNPDIA. |
Título: |
Nanofibrous filtering membranes modified with sucrose-derived carbonaceous materials for adsorption in batch and fixed bed. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Chemical Engineering Journal, v. 451, e138557, 2023. |
Páginas: |
1 - 15 |
ISSN: |
1385-8947 |
DOI: |
https://doi.org/10.1016/j.cej.2022.138557 |
Idioma: |
Inglês |
Conteúdo: |
Membrane technologies have been considered as an efficient and economical alternative to help providing clean water for the population on a large scale. In this regard, the development of low-cost adsorbent membranes, with scalable production and high efficiency is indeed necessary and urgently required. In this work, we investigated the methylene blue removal performance of solution blow spun (SBS) polyamide 6 (PA6) nanofibrous membranes (NFMs) coated with different types of carbonaceous materials. Sucrose was employed as carbon source and two distinct approaches, namely hydrothermal and caramelization routes, were investigated to produce it. The NFMs were functionalized by dip-coating and then chemically activated using NaOH to further enhance the adsorption efficiency. The carbonaceous materials-modified NFMs were characterized by scanning electron microscopy (SEM), contact angle, Zeta potential, Fourier-transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and dynamic mechanical analysis (DMA). Batch and fixed bed experiments revealed that the NFMs modified by dip coating with the carbonaceous materials present competitive adsorption capacity in addition to be a simple, low cost and scalable strategy. The experimental and maximum adsorption capacities of batch adsorption were 371.69 mg/g and 471.58 mg/g for the NFMs modified with hydrothermal carbon, and 260.52 mg/g and 651.04 mg/g for the NFMs coated with black caramel, respectively. The NFMs modified with hydrothermal carbon and caramel carbon showed applicability in scalable systems based on fixed bed adsorption experiments. Our results suggest that nanofibrous membranes coated with carbonaceous materials from sucrose are a suitable tool to develop adsorptive membranes for pollutants removal and open the venue to also explore other carbon-rich sources, including bio- and food residues for adsorptive applications. MenosMembrane technologies have been considered as an efficient and economical alternative to help providing clean water for the population on a large scale. In this regard, the development of low-cost adsorbent membranes, with scalable production and high efficiency is indeed necessary and urgently required. In this work, we investigated the methylene blue removal performance of solution blow spun (SBS) polyamide 6 (PA6) nanofibrous membranes (NFMs) coated with different types of carbonaceous materials. Sucrose was employed as carbon source and two distinct approaches, namely hydrothermal and caramelization routes, were investigated to produce it. The NFMs were functionalized by dip-coating and then chemically activated using NaOH to further enhance the adsorption efficiency. The carbonaceous materials-modified NFMs were characterized by scanning electron microscopy (SEM), contact angle, Zeta potential, Fourier-transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and dynamic mechanical analysis (DMA). Batch and fixed bed experiments revealed that the NFMs modified by dip coating with the carbonaceous materials present competitive adsorption capacity in addition to be a simple, low cost and scalable strategy. The experimental and maximum adsorption capacities of batch adsorption were 371.69 mg/g and 471.58 mg/g for the NFMs modified with hydrothermal carbon, and 260.52 mg/g and 651.04 mg/g for the NFMs coated with black ... Mostrar Tudo |
Palavras-Chave: |
Carbonaceous materials; Fixed bed; Solution blow spinning; Sustainable materials. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02795naa a2200265 a 4500 001 2146960 005 2022-09-28 008 2023 bl uuuu u00u1 u #d 022 $a1385-8947 024 7 $ahttps://doi.org/10.1016/j.cej.2022.138557$2DOI 100 1 $aALVARENGA, A. D. 245 $aNanofibrous filtering membranes modified with sucrose-derived carbonaceous materials for adsorption in batch and fixed bed.$h[electronic resource] 260 $c2023 300 $a1 - 15 520 $aMembrane technologies have been considered as an efficient and economical alternative to help providing clean water for the population on a large scale. In this regard, the development of low-cost adsorbent membranes, with scalable production and high efficiency is indeed necessary and urgently required. In this work, we investigated the methylene blue removal performance of solution blow spun (SBS) polyamide 6 (PA6) nanofibrous membranes (NFMs) coated with different types of carbonaceous materials. Sucrose was employed as carbon source and two distinct approaches, namely hydrothermal and caramelization routes, were investigated to produce it. The NFMs were functionalized by dip-coating and then chemically activated using NaOH to further enhance the adsorption efficiency. The carbonaceous materials-modified NFMs were characterized by scanning electron microscopy (SEM), contact angle, Zeta potential, Fourier-transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and dynamic mechanical analysis (DMA). Batch and fixed bed experiments revealed that the NFMs modified by dip coating with the carbonaceous materials present competitive adsorption capacity in addition to be a simple, low cost and scalable strategy. The experimental and maximum adsorption capacities of batch adsorption were 371.69 mg/g and 471.58 mg/g for the NFMs modified with hydrothermal carbon, and 260.52 mg/g and 651.04 mg/g for the NFMs coated with black caramel, respectively. The NFMs modified with hydrothermal carbon and caramel carbon showed applicability in scalable systems based on fixed bed adsorption experiments. Our results suggest that nanofibrous membranes coated with carbonaceous materials from sucrose are a suitable tool to develop adsorptive membranes for pollutants removal and open the venue to also explore other carbon-rich sources, including bio- and food residues for adsorptive applications. 653 $aCarbonaceous materials 653 $aFixed bed 653 $aSolution blow spinning 653 $aSustainable materials 700 1 $aANDRE, R. S. 700 1 $aTEODORO, K. B. R. 700 1 $aSCHNEIDER, R. 700 1 $aMERCANTE, L. A. 700 1 $aCORREA, D. S. 773 $tChemical Engineering Journal$gv. 451, e138557, 2023.
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Embrapa Instrumentação (CNPDIA) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Hortaliças. Para informações adicionais entre em contato com cnph.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
03/12/1998 |
Data da última atualização: |
03/12/1998 |
Autoria: |
OLIVEIRA, A. T. de; JUNQUEIRA, A. M. R.; PEIXOTO, J. R.; FRANCA, F. H. |
Afiliação: |
EMBRAPA-CNPH, Brasilia, DF. |
Título: |
Impacto da irrigacao por aspersao convencional nos danos da traca-das-cruciferas em plantas de repolho. |
Ano de publicação: |
1998 |
Fonte/Imprenta: |
Horticultura Brasileira, Brasilia, v.16, n.1, maio 1998. |
Idioma: |
Português |
Notas: |
Resumo 223. |
Palavras-Chave: |
Brasil; Brasilia; Brassica oleraceae capitata; Damage; Distrito Federal; Pest insects; Sprinkler. |
Thesagro: |
Aspersão; Cerrado; Dano; Inseto; Irrigação; Plutella Xylostella; Praga; Repolho. |
Thesaurus NAL: |
Brazil; cabbage; irrigation. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00977naa a2200373 a 4500 001 1762002 005 1998-12-03 008 1998 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA, A. T. de 245 $aImpacto da irrigacao por aspersao convencional nos danos da traca-das-cruciferas em plantas de repolho. 260 $c1998 500 $aResumo 223. 650 $aBrazil 650 $acabbage 650 $airrigation 650 $aAspersão 650 $aCerrado 650 $aDano 650 $aInseto 650 $aIrrigação 650 $aPlutella Xylostella 650 $aPraga 650 $aRepolho 653 $aBrasil 653 $aBrasilia 653 $aBrassica oleraceae capitata 653 $aDamage 653 $aDistrito Federal 653 $aPest insects 653 $aSprinkler 700 1 $aJUNQUEIRA, A. M. R. 700 1 $aPEIXOTO, J. R. 700 1 $aFRANCA, F. H. 773 $tHorticultura Brasileira, Brasilia$gv.16, n.1, maio 1998.
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