| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Instrumentação. |
|
Data corrente: |
05/07/2023 |
|
Data da última atualização: |
05/07/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
MOREIRA, A. J.; MALAFATTI, J. O. D.; SCIENA, C. R.; PARIS, E. C. |
|
Afiliação: |
ELAINE CRISTINA PARIS, CNPDIA. |
|
Título: |
Elucidation of the atrazine degradation intermediates and dependence on the physicochemical properties of the niobium pentoxide nanostructures. |
|
Ano de publicação: |
2023 |
|
Fonte/Imprenta: |
Research on Chemical Intermediates, v. 49, 2023. |
|
Páginas: |
2855?2874 |
|
DOI: |
https://doi.org/10.1007/s11164-023-04989-6 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Atrazine (ATZ) is a toxic herbicide used globally and has been found with its by products in diferent environmental ecosystems. Due to these by-products toxicity, the scientifc community has endeavored to seek technologies capable of removing them from the aquatic ecosystem, as well as fnding alternatives to unravel the reaction mechanisms. The Nb2O5 semiconductor was obtained in this study by the hydrothermal method aiming at the ATZ degradation under UV light. A volume of 70 mL of 5 mg L?1 ATZ solution containing 10 mg of catalyst, and natural pH achieved 70% photocatalytic degradation of ATZ in 30 min under UV light, which represents an improvement of up to 46% compared to photolysis. After the ATZ degradation, the intermediates were monitored efciently by molecular absorption spectrometry and hydrogen nuclear magnetic resonance (1 H NMR) to reveal the chemical nature of these compounds. Hydroxyatrazine (HAT), Desethylatrazine (DEAT), and/or Desisopropylatrazine (DIAT) were suggested based on the analytical data, allowing to unveil the ATZ photocatalytic degradation mechanism mediated by Nb2O5 under UV light. Therefore, the results present in this study confrm an alternative for ATZ environmental remediation and the molecular absorption spectrometry and 1 H NMR applicability to intermediates identifcation, which is essential to unravel the ATZ degradation mechanisms. |
|
Palavras-Chave: |
Aquatic ecosystem; Toxic herbicide. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02082naa a2200205 a 4500
001 2154811
005 2023-07-05
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11164-023-04989-6$2DOI
100 1 $aMOREIRA, A. J.
245 $aElucidation of the atrazine degradation intermediates and dependence on the physicochemical properties of the niobium pentoxide nanostructures.$h[electronic resource]
260 $c2023
300 $a2855?2874
520 $aAtrazine (ATZ) is a toxic herbicide used globally and has been found with its by products in diferent environmental ecosystems. Due to these by-products toxicity, the scientifc community has endeavored to seek technologies capable of removing them from the aquatic ecosystem, as well as fnding alternatives to unravel the reaction mechanisms. The Nb2O5 semiconductor was obtained in this study by the hydrothermal method aiming at the ATZ degradation under UV light. A volume of 70 mL of 5 mg L?1 ATZ solution containing 10 mg of catalyst, and natural pH achieved 70% photocatalytic degradation of ATZ in 30 min under UV light, which represents an improvement of up to 46% compared to photolysis. After the ATZ degradation, the intermediates were monitored efciently by molecular absorption spectrometry and hydrogen nuclear magnetic resonance (1 H NMR) to reveal the chemical nature of these compounds. Hydroxyatrazine (HAT), Desethylatrazine (DEAT), and/or Desisopropylatrazine (DIAT) were suggested based on the analytical data, allowing to unveil the ATZ photocatalytic degradation mechanism mediated by Nb2O5 under UV light. Therefore, the results present in this study confrm an alternative for ATZ environmental remediation and the molecular absorption spectrometry and 1 H NMR applicability to intermediates identifcation, which is essential to unravel the ATZ degradation mechanisms.
653 $aAquatic ecosystem
653 $aToxic herbicide
700 1 $aMALAFATTI, J. O. D.
700 1 $aSCIENA, C. R.
700 1 $aPARIS, E. C.
773 $tResearch on Chemical Intermediates$gv. 49, 2023.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Instrumentação (CNPDIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 6 | |
| 1. |  | PAULETTI, P.; MACHADO NETO, R.; PACKER, I. U.; BESSI, R. Avaliação de níveis séricos de imunoglobulina, proteína e o desempenho de bezerras da raça Holandesa. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 37, n. 1, p. 89-94, jan. 2002 Título em inglês: Evaluation of levels of serum immunoglobulins, proteins and the performance of Holstein heifers.| Biblioteca(s): Embrapa Unidades Centrais. |
|    |
| 2. | | CARVALHO, R. de; D'ARCE, R. D.; KUCHEMBUCK, M. R. G.; MACHADO NETO, R.; MANZANO, A. Aplicação da técnica da taxa de depuração renal de creatinina para avaliação do status mineral do Ca e P em equinos. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 30., 1993, Rio de Janeiro, RJ. Anais... Rio de Janeiro: SBZ, 1993. p. 399.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
| |
| 4. | | PARRA, J. R. P.; SALVADORI, J. R.; ALMEIDA, R. P.; MACHADO NETO, R. Biologia comparada em duas populações de Pseudaletia sequax Franclemart, 1951 (lep.; Noctuidae). In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 12. / ENCONTRO SOBRE MOSCAS-DAS-FRUTAS, 2., 1989, Belo Horizonte. Resumos... [S.l.]: Sociedade Entomológica do Brasil, [1989]. v. 1 p. 5| Biblioteca(s): Embrapa Trigo. |
| |
| 5. | | BARACAT, R. S.; MACHADO NETO, R.; DANIELE, C.; BESSI, R.; PACKER, I. U. Fornecimento prolongado de colostro e proteção passiva em bezerros recém-nascidos. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 32, n. 11, p. 1215-20, nov. 1997. Título em inglês: Extended colostrum feeding and passive immunity in newborn calves.| Biblioteca(s): Embrapa Unidades Centrais. |
| |
| 6. | | MACHADO NETO, R.; PACKER, I. U.; MENTEN, J. F.; LAVORENTI, A. Efeito da raça, dieta, época e ordem de parição na concentração de imunoglobulina G no colostro de suínos. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 36, n. 10, p. 1295-99, out. 2001 Título em inglês: Effect of breed, diet, period and lactation numbers on immunoglobulin G concentration in swine colostrum.| Biblioteca(s): Embrapa Unidades Centrais. |
| |
| Registros recuperados : 6 | |
|
| Expressão de busca inválida. Verifique!!! |
|
|
