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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
28/09/2022 |
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Data da última atualização: |
10/12/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GALVANI, G. M.; ZITO, C. A.; PERFECTO, T. M.; MALAFATTI, J. O. D.; PARIS, E. C.; VOLANTI, D. P. |
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Afiliação: |
ELAINE CRISTINA PARIS, CNPDIA. |
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Título: |
Two-dimensional NiO nanosheets for efficient Congo red adsorption removal. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Materials Chemistry and Physics, v. 290, e126591, 2022. |
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Páginas: |
1 - 11 |
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ISSN: |
0254-0584 |
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DOI: |
https://doi.org/10.1016/j.matchemphys.2022.126591 |
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Idioma: |
Inglês |
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Conteúdo: |
Strategies for developing new adsorbents are necessary for more efficient processes to remove contaminants fromwastewater. Thus, it is essential to adjust the synthesis parameters of the adsorbent nanomaterial to control thesurface area and morphology and, therefore, enhance the adsorption performance. Herein, α-Ni(OH)2 nanosheets were synthe sized via a simple and fast microwave-assisted solvothermal method and converted to NiO nanostructures by calcination in air. The effect of different calcination temperatures (range of 300–600 ◦C) on themorphology, crystal structure, and adsorption performance of Congo red (CR) was evaluated. The calcination ofα-Ni(OH)2 at 300 ◦C resulted in 2D NiO nanosheets, which showed the best performance to remove CR dye due tothe increased surface area and porosity provided by the 2D morphology. The nanosheet-like structure is lost withincreasing the calcination temperature and the nanoparticles become bigger, consequently, the CR adsorptioncapacities are significantly reduced. The 2D NiO nanosheets can adsorb a significant amount of CR quickly,reaching equilibrium after only 120 min, indicating a high affinity between the adsorbate species and the surfaceof the adsorbent. Additionally, the adsorption isotherm was compatible with the Langmuir model, which provides a maximum calculated adsorption capacity of 259.74 mg g− 1. Thus, our findings showed how to adequatethe synthesis parameters to obtain NiO nanosheets and improve the adsorption parameters to CR, which can beextended to the fabrication of new materials to promote advances in sustainable technologies. MenosStrategies for developing new adsorbents are necessary for more efficient processes to remove contaminants fromwastewater. Thus, it is essential to adjust the synthesis parameters of the adsorbent nanomaterial to control thesurface area and morphology and, therefore, enhance the adsorption performance. Herein, α-Ni(OH)2 nanosheets were synthe sized via a simple and fast microwave-assisted solvothermal method and converted to NiO nanostructures by calcination in air. The effect of different calcination temperatures (range of 300–600 ◦C) on themorphology, crystal structure, and adsorption performance of Congo red (CR) was evaluated. The calcination ofα-Ni(OH)2 at 300 ◦C resulted in 2D NiO nanosheets, which showed the best performance to remove CR dye due tothe increased surface area and porosity provided by the 2D morphology. The nanosheet-like structure is lost withincreasing the calcination temperature and the nanoparticles become bigger, consequently, the CR adsorptioncapacities are significantly reduced. The 2D NiO nanosheets can adsorb a significant amount of CR quickly,reaching equilibrium after only 120 min, indicating a high affinity between the adsorbate species and the surfaceof the adsorbent. Additionally, the adsorption isotherm was compatible with the Langmuir model, which provides a maximum calculated adsorption capacity of 259.74 mg g− 1. Thus, our findings showed how to adequatethe synthesis parameters to obtain NiO nanosheets and improve the adsorption paramet... Mostrar Tudo |
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Palavras-Chave: |
Anionic dye; Color removal; Nanoadsorbents; Two-dimensional material. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02408naa a2200265 a 4500
001 2146957
005 2024-12-10
008 2022 bl uuuu u00u1 u #d
022 $a0254-0584
024 7 $ahttps://doi.org/10.1016/j.matchemphys.2022.126591$2DOI
100 1 $aGALVANI, G. M.
245 $aTwo-dimensional NiO nanosheets for efficient Congo red adsorption removal.$h[electronic resource]
260 $c2022
300 $a1 - 11
520 $aStrategies for developing new adsorbents are necessary for more efficient processes to remove contaminants fromwastewater. Thus, it is essential to adjust the synthesis parameters of the adsorbent nanomaterial to control thesurface area and morphology and, therefore, enhance the adsorption performance. Herein, α-Ni(OH)2 nanosheets were synthe sized via a simple and fast microwave-assisted solvothermal method and converted to NiO nanostructures by calcination in air. The effect of different calcination temperatures (range of 300–600 ◦C) on themorphology, crystal structure, and adsorption performance of Congo red (CR) was evaluated. The calcination ofα-Ni(OH)2 at 300 ◦C resulted in 2D NiO nanosheets, which showed the best performance to remove CR dye due tothe increased surface area and porosity provided by the 2D morphology. The nanosheet-like structure is lost withincreasing the calcination temperature and the nanoparticles become bigger, consequently, the CR adsorptioncapacities are significantly reduced. The 2D NiO nanosheets can adsorb a significant amount of CR quickly,reaching equilibrium after only 120 min, indicating a high affinity between the adsorbate species and the surfaceof the adsorbent. Additionally, the adsorption isotherm was compatible with the Langmuir model, which provides a maximum calculated adsorption capacity of 259.74 mg g− 1. Thus, our findings showed how to adequatethe synthesis parameters to obtain NiO nanosheets and improve the adsorption parameters to CR, which can beextended to the fabrication of new materials to promote advances in sustainable technologies.
653 $aAnionic dye
653 $aColor removal
653 $aNanoadsorbents
653 $aTwo-dimensional material
700 1 $aZITO, C. A.
700 1 $aPERFECTO, T. M.
700 1 $aMALAFATTI, J. O. D.
700 1 $aPARIS, E. C.
700 1 $aVOLANTI, D. P.
773 $tMaterials Chemistry and Physics$gv. 290, e126591, 2022.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| Registros recuperados : 9 | |
| 1. |  | MENEGAZZI, G.; FAST, O.; CHILIBROSTE, P.; GILES, P. Y.; GENRO, T. C. M.; MATTIAUDA, D. A. Defoliation intensity impacts on feeding station exploration by dairy cows. Animal: science proceedings, v. 14, n. 4, p. 649-650, 2023.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 2. | | CARBALLO, C.; CLARAMUNT, M.; MOTTA, G.; FABER, A.; SOCA, P.; CHILIBROSTE, P.; GENRO, T. C. M.; BENTANCUR, O.; MATTIAUDA, D. Behavior, intake and milk production of Holstein cows grazing perennial pasture under different intensities. In: INTERNATIONAL RANGELAND CONGRESS, 9., 2011, Rosario, Argentina. Diverse rangelands for a sustainable society: [proceedings...]. Rosario: Instituto Nacional de Tecnología Agrpecuaria; Asociación Argentina para el Manejo de Pastizales Naturales, 2011. p. 441.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 3. | | MENEGAZZI, G.; YANINA GILES, P.; OBORSKY, M.; FAST, O.; MATTIAUDA, D. A.; GENRO, T. C. M.; CHILIBROSTE, P. Effect of post-grazing sward height on ingestive behavior, dry matter intake, and milk production of Holstein dairy cows. Frontiers in Animal Science, v. 2, 742685, Nov 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 4. | | FAST HINZ, O.; CHILIBROSTE, P.; MENEGAZZI, G.; OBORSKY, M.; SOCA, P.; GENRO, T. C. M.; MATTIAUDA, D. A. Potential improvements in milk production of mid lactating Holstein cows through changes in the defoliation intensity on a mixed pasture. Journal of Animal Science, v. 97, p. 384-385, Dec. 2019. Supplement 3. ASAS-CSAS Annual Meeting and Trade Show.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 5. | | JUCHEM, S. de O.; BENES, S. E.; ROBINSON, P. H.; GRATTAN, S. R.; VASQUEZ, P.; CHILIBROSTE, P.; BRITO, M. Grazing as an alternative for utilization of saline-sodic soils in the San Joaquin Valley: selenium accretion and performance of beef heifers. Science of the Total Environment, Amsterdam, v. 419, p. 44-53, 1 Mar. 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 6. | | FAST HINZ, O.; CHILIBROSTE, P.; MENEGAZZI, G.; OBORSKY, M.; GENRO, T. C. M.; SOCA, P.; MATTIAUDA, D. A. How is the ingestive behaviour of mid lactating Holstein cows grazing a fescue based pasture under two different defoliation intensities? Journal of Animal Science, v. 97, p. 385-386, Dec. 2019. Supplement 3. ASAS-CSAS Annual Meeting and Trade Show.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 7. | | FAJARDO, M.; MATTIAUDA, D. A.; MOTTA, G.; GENRO, T. C. M.; MEIKLE, A.; CARRIQUIRY, M.; CHILIBROSTE, P. Use of mixed rations with different access time to pastureland on productive responses of early lactation Holstein cows. Livestock Science, v. 181, p. 51-57, Nov. 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 8. | | MENEGAZZI, G.; GILES, P. Y.; BUSANELLO, M.; FAST, O.; MATTIAUDA, D. A.; GENRO, T. C. M.; GERRITS, W. J. J.; DIJKSTRA, J.; CHILIBROSTE, P. Relationships between sward structure, behaviour and performance of grazing Holstein dairy cows: a canonical approach. Animal: science proceedings, v. 14, n. 4, p. 639, 2023.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 9. | | MENEGAZZI, G.; GILES, P. Y.; MATTIAUDA, D. A.; ELIZONDO, F.; GENRO, T. C. M.; GERRITS, W. J. J.; DIJKSTRA, J.; CHILIBROSTE, P. Diurnal variation in water-soluble carbohydrate contents of pasture affects milk production of dairy cattle: a simulation approach. Animal: science proceedings, v. 13, n. 4, p. 579-580, Sept. 2022.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| Registros recuperados : 9 | |
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