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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
05/07/2023 |
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Data da última atualização: |
05/07/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MOREIRA, A. J.; MALAFATTI, J. O. D.; SCIENA, C. R.; PARIS, E. C. |
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Afiliação: |
ELAINE CRISTINA PARIS, CNPDIA. |
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Título: |
Elucidation of the atrazine degradation intermediates and dependence on the physicochemical properties of the niobium pentoxide nanostructures. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Research on Chemical Intermediates, v. 49, 2023. |
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Páginas: |
2855?2874 |
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DOI: |
https://doi.org/10.1007/s11164-023-04989-6 |
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Idioma: |
Inglês |
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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. |
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Palavras-Chave: |
Aquatic ecosystem; Toxic herbicide. |
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Categoria do assunto: |
-- |
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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.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| Registros recuperados : 3 | |
| 1. |  | CRISTALDO, C. M.; SOUSA, R. A. C. de; COSTA, K. F.; SECRETTI, M. L.; CORRÊA, A. R.; SALTON, J. C. Avaliação da densidade do solo após 15 anos sob distintos sistemas de manejo e cultivo em um Latossolo Vermelho no Cerrado sul-mato-grossense. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 34., 2013, Florianópolis. Ciência do solo: para quê e para quem: anais. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2013.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 2. | | CRISTALDO, C. M.; SCHIAVO, J. A.; MERCANTE, F. M.; TERENA, R. F.; COSTA, K. F.; SOUSA, R. A. C. de. Fracionamento químico da matéria orgânica humificada em solo de comunidade indígena, Miranda-MS. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 30.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 14.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 12.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 9.; SIMPÓSIO SOBRE SELÊNIO NO BRASIL, 1., 2012, Maceió. A responsabilidade socioambiental da pesquisa agrícola: anais. Viçosa: SBCS, 2012. Fertbio. Organizado por Leila Cruz da Silva, Gilson Moura Filho, Adriano Barboza Moura, Abel Washington de Albuquerque. 4 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 3. | | SOUSA, R. A. C. de; FERNANDES, A. H. B. M.; CARDOSO, M. A.; FERNANDES, F. A.; SOARES, M. T. S.; CRISPIM, S. M. A. Mineralização de carbono orgânico em solo tratado com diferentes doses de dejetos de suínos. SIMPÓSIO SOBRE RECURSOS NATURAIS E SOCIOECONÔMICOS DO PANTANAL, 5., 2010, Corumbá, MS. Anais... Corumbá: Embrapa Pantanal: UFMS; Campinas: ICS do Brasil, 2010. 1 CD-ROM SIMPAN 2010. Não Paginado| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pantanal. |
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| Registros recuperados : 3 | |
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