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| Registros recuperados : 23 | |
| 4. |  | CABRAL, C. S.; HENZ, G. P.; MOREIRA, A. J. A.; REIS, A. New cucurbitaceous hosts of Myrothecium roridum in Amazonas State, Brazil. Tropical Plant Pathology, Brasília, DF, v. 34, n. 6, p. 402-405, Nov./Dec. 2009.| Biblioteca(s): Embrapa Hortaliças. |
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| 7. | | MAFFRA, A. A.; CAMPOS, J. M.; MOREIRA, A. J. A.; IEDE, E. T.; REIS FILHO, W.; STRAPASSON, P. Eficiência de diferentes tipos de armadilhas na captura de escolitídeos (Coleoptera, Curculionidae) no Aeroporto Internacional do Rio de Janeiro (AIRJ). In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 24., 2012, Curitiba. Anais web. Curitiba: SEB: UFPR, 2012.| Biblioteca(s): Embrapa Florestas. |
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| 9. | | MAFFRA, A. A.; CAMPOS, J. M.; MOREIRA, A. J. de; IEDE, E. T.; REIS FILHO, W.; STRAPASSON, P. Utilização de diferentes tipos de armadilhas entomológicas para avaliar a entomofauna presente no Aeroporto Internacional do Rio de Janeiro (AIRJ). In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 23., 2010, Natal. Anais... Natal: Sociedade Brasileira de Entomologia: Emparn, 2010. CD-ROM. Resumo.| Biblioteca(s): Embrapa Florestas. |
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| 11. | | MULLER, I. T.; MALAFATTI, J. O. D.; MOREIRA, A. J.; FRESCHI, G. P. G.; PARIS, E. C. Síntese de Compósito nanoparticulado hidroxiapatita: Nb2O5 para aplicação em descontaminação de água. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 11., 2019, São Carlos, SP. Anais... São Carlos: Embrapa Pecuária Sudeste: Embrapa Instrumentação, 2019. Editores técnicos: Alexandre Berndt, Ana Rita de Araujo Nogueira, Lea Chapaval, Marcelo Mattos Cavallari, Manuel Antonio Chagas Jacinto. 52 Embrapa Pecuária Sudeste. Documentos, 134.| Biblioteca(s): Embrapa Instrumentação. |
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| 12. | | PARIS, E. C.; MALAFATTI, J. O. D.; SCIENA, C. R.; NEVES JUNIOR, L. F.; ZENATTI, A.; ESCOTE, M. T.; MOREIRA, A. J.; FRESCHI, G. P. G. Nb2O5 nanoparticles decorated with magnetic ferrites for wastewater photocatalytic remediation. Environmental Science and Pollution Research,v. 28, n. 19, 2021. p. 23731-23741| Biblioteca(s): Embrapa Instrumentação. |
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| 14. | | MOREIRA, A. J.; CAMPOS, L. O.; MALDI, C. P.; DIAS, J. A.; PARIS, E. C.; GIRALDI, T. R.; FRESCHI, G. P. G. Photocatalytic degradation of Prozac® mediated by TiO2 nanoparticles obtained via three synthesis methods: sonochemical, microwave hydrothermal, and polymeric precursor. Environmental Science and Pollution Research, 2020. 16 p.| Biblioteca(s): Embrapa Instrumentação. |
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| 15. | | MOREIRA, A. J.; MALAFATTI, J. O. D.; GIRALDI, T. R.; PARIS, E. C.; PEREIRA, E. C.; MENDONÇA, V. R.; MASTELARO, V. R.; FRESCHI, G. P. G. Prozac® photodegradation mediated by Mn-doped TiO2 nanoparticles: Evaluation of by-products and mechanisms proposal. Journal of Environmental Chemical Engineering, v. 8, 104543, 2020. 1 - 13| Biblioteca(s): Embrapa Instrumentação. |
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| 16. | | MALAFATTI, J. O. D.; MOREIRA, A. J.; SCIENA, C. R.; SILVA, T. E. M.; FRESCHI, G. P. G.; PEREIRA, E. C.; PARIS, E. C. Prozac® removal promoted by HAP:Nb2O5 nanoparticles system: by products, mechanism, and cytotoxicity assessment. Journal of Environmental Chemical Engineering, v. 9, e104820, 2021. 1-11| Biblioteca(s): Embrapa Instrumentação. |
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| 18. | | COSTA, A. V.; KLIEMANN, H. J.; DUTRA, L. G.; JARDIM, P. de M.; NUNES, M. R.; MONTEIRO, P. M. O. F.; RESENDE, F. de P.; MOREIRA, A. J. A.; RAMOS, J. H. de A. Principais resultados da pesquisa em soja na EMGOPA durante os anos de 1973/74 a 1975/76. [S.l.: s.n.], 1977. 27p. Seminario apresentado na EMGOPA, em 28/03/1977.| Biblioteca(s): Embrapa Cerrados. |
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| 19. | | SILVA, A. P.; BORBOREMA, N. M. M.; LEAO, N. V. M.; SHIMIZU, E. S. C.; BRASIL, H. M. S.; MOREIRA, A. J. F.; SAMPAIO, M. R. G.; CHAVES, A. A.; SOUZA, J. A. L. de; BASTOS, V. B.; ARAGÃO, I. L. G. de; SAITO, L. B. G.; OLIVEIRA, M. M. de; REIS, A. F. S.; FRAZÃO, D. A. C.; BEMERGUY, F. A. S. Minuta do projeto de lei do PMAB: Plano Municipal de Arborização de Belém. Belém, PA: SEMMA, [2009?]. 30 p.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 20. | | ZITO, R. K.; MELLO FILHO, O. L. de; PEREIRA, M. J. Z.; MEYER, M. C.; HIROSE, E.; FIDELIS, A. C.; NUNES JÚNIOR, J.; VIEIRA, N. E.; SEII, A. H.; PIMENTA, C. B.; SANCHEZ, I.; MOREIRA, A. J. A.; DESSIMONE, M. G. L.; SENE, B. R. A. de; SOUSA, R. C.; NEIVA, L. C. da S. Cultivares de soja Macrorregiões 3, 4 e 5: Goiás e Região Central do Brasil. Londrina: Embrapa Soja, 2017. 48 p.| Biblioteca(s): Embrapa Amazônia Ocidental; Embrapa Unidades Centrais. |
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| Registros recuperados : 23 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
24/03/2022 |
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Data da última atualização: |
24/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
JWSUS, E. T. de; MOREIRA, A. J.; SÁ, M. C.; FRESCHI, G. P. G.; JOYA, M. R.; LI, M. S.; PARIS, E. C. |
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Afiliação: |
ELAINE CRISTINA PARIS, CNPDIA. |
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Título: |
Potential of Nb2O5 nanofibers in photocatalytic degradation of organic pollutants. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 28, 2021. |
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Páginas: |
69401?69415 |
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DOI: |
https://doi.org/10.1007/s11356-021-15435-8 |
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Idioma: |
Inglês |
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Conteúdo: |
Various photocatalytic nanomaterials for environmental remediation have been promoted due to the pollution caused by different organic pollutants. In this study, Nb2O5 nanofibers were obtained by electrospinning technique, presenting controlled crystallinity and high specific surface area to improve the photoactivity response. The structural characterization indicated Nb2O5 nanofibers with orthorhombic phase formation. The photoluminescence measurements showed different energy levels contributing to the electronic transition events. The nanofibers with a bandgap up to 3.6 eV were applied to photocatalysis of dyes (rhodamine B (RhB) or methylene blue (MB)) and fluoxetine (FLX), listed as an emergent pollutant. In the optimized condition (pH = 9), the RhB and MB photocatalysis was 59% and 93% more efficient than photolysis due to ζ = − 50 mV ± 5 for EtOH_550 sample increased interaction with MB (cationic) compared to RhB unprotonated (pKa = 3.7). Therefore, FLX (pKa = 10.7) was selected due to protonated form at pH = 9 and showed 68% ± 1 adsorption in 30 min for EtOH_550. The FLX photocatalytic degradation under UV light irradiation was up to 17% higher than the photolytic degradation. The formation of hydroxyl radicals in the photocatalytic system (EtOH_550) was proven by the Coumarine probe assay, corroborating with the greater amount of α-[2-(methylamino)ethyl]benzylalcohol (MAEB), a by-product obtained after FLX oxidation. Additionally, the material achieved specific catalytic activity for the different organic compounds (RhB, MB, or FLX). Therefore, Nb2O5 nanofibers were efficient for degrading three different pollutants under UV light, proving a viable alternative for environmental remediation. MenosVarious photocatalytic nanomaterials for environmental remediation have been promoted due to the pollution caused by different organic pollutants. In this study, Nb2O5 nanofibers were obtained by electrospinning technique, presenting controlled crystallinity and high specific surface area to improve the photoactivity response. The structural characterization indicated Nb2O5 nanofibers with orthorhombic phase formation. The photoluminescence measurements showed different energy levels contributing to the electronic transition events. The nanofibers with a bandgap up to 3.6 eV were applied to photocatalysis of dyes (rhodamine B (RhB) or methylene blue (MB)) and fluoxetine (FLX), listed as an emergent pollutant. In the optimized condition (pH = 9), the RhB and MB photocatalysis was 59% and 93% more efficient than photolysis due to ζ = − 50 mV ± 5 for EtOH_550 sample increased interaction with MB (cationic) compared to RhB unprotonated (pKa = 3.7). Therefore, FLX (pKa = 10.7) was selected due to protonated form at pH = 9 and showed 68% ± 1 adsorption in 30 min for EtOH_550. The FLX photocatalytic degradation under UV light irradiation was up to 17% higher than the photolytic degradation. The formation of hydroxyl radicals in the photocatalytic system (EtOH_550) was proven by the Coumarine probe assay, corroborating with the greater amount of α-[2-(methylamino)ethyl]benzylalcohol (MAEB), a by-product obtained after FLX oxidation. Additionally, the material achieved specific catal... Mostrar Tudo |
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Palavras-Chave: |
Ceramic nanofiber; Drug; Electrospinning; Organic pollutant. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02510naa a2200265 a 4500
001 2141289
005 2022-06-24
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11356-021-15435-8$2DOI
100 1 $aJWSUS, E. T. de
245 $aPotential of Nb2O5 nanofibers in photocatalytic degradation of organic pollutants.$h[electronic resource]
260 $c2022
300 $a69401?69415
520 $aVarious photocatalytic nanomaterials for environmental remediation have been promoted due to the pollution caused by different organic pollutants. In this study, Nb2O5 nanofibers were obtained by electrospinning technique, presenting controlled crystallinity and high specific surface area to improve the photoactivity response. The structural characterization indicated Nb2O5 nanofibers with orthorhombic phase formation. The photoluminescence measurements showed different energy levels contributing to the electronic transition events. The nanofibers with a bandgap up to 3.6 eV were applied to photocatalysis of dyes (rhodamine B (RhB) or methylene blue (MB)) and fluoxetine (FLX), listed as an emergent pollutant. In the optimized condition (pH = 9), the RhB and MB photocatalysis was 59% and 93% more efficient than photolysis due to ζ = − 50 mV ± 5 for EtOH_550 sample increased interaction with MB (cationic) compared to RhB unprotonated (pKa = 3.7). Therefore, FLX (pKa = 10.7) was selected due to protonated form at pH = 9 and showed 68% ± 1 adsorption in 30 min for EtOH_550. The FLX photocatalytic degradation under UV light irradiation was up to 17% higher than the photolytic degradation. The formation of hydroxyl radicals in the photocatalytic system (EtOH_550) was proven by the Coumarine probe assay, corroborating with the greater amount of α-[2-(methylamino)ethyl]benzylalcohol (MAEB), a by-product obtained after FLX oxidation. Additionally, the material achieved specific catalytic activity for the different organic compounds (RhB, MB, or FLX). Therefore, Nb2O5 nanofibers were efficient for degrading three different pollutants under UV light, proving a viable alternative for environmental remediation.
653 $aCeramic nanofiber
653 $aDrug
653 $aElectrospinning
653 $aOrganic pollutant
700 1 $aMOREIRA, A. J.
700 1 $aSÁ, M. C.
700 1 $aFRESCHI, G. P. G.
700 1 $aJOYA, M. R.
700 1 $aLI, M. S.
700 1 $aPARIS, E. C.
773 $tEnvironmental Science and Pollution Research$gv. 28, 2021.
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