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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: |
27/11/2020 |
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Data da última atualização: |
16/08/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
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. |
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Afiliação: |
ELAINE CRISTINA PARIS, CNPDIA. |
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Título: |
Nb2O5 nanoparticles decorated with magnetic ferrites for wastewater photocatalytic remediation. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Environmental Science and Pollution Research,v. 28, n. 19, 2021. |
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Páginas: |
p. 23731-23741 |
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DOI: |
https://doi.org/10.1007/s11356-020-11262-5 |
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Idioma: |
Inglês |
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Conteúdo: |
Nanotechnology has been studied on environmental remediation processes to foster greater photocatalysts efficiency and reuse in wastewater. This study investigated the photocatalytic efficiency and viability of niobium pentoxide (Nb2O5) nanoparticles decorated with magnetic ferrite (cobalt ferrite (CoFe2O4) or magnesium ferrite (MgFe2O4)) for atrazine photodegradation. Thus, the decorated Nb2O5 was synthesized by the polymeric precursor method, forming nanoparticles with sizes ranging from 25 to 50 nm. Nanocomposite elementary analyses showed a homogeneous distribution of elements on all particles surface. Efficient magnetic saturation was observed for pure CoFe2O4 (53 emu g−1) and MgFe2O4 (19 emu g−1) nanoparticles, promoting the magnetic removal of Nb2O5:CoFe2O4 and Nb2O5:MgFe2O4 nanocomposites. Photocatalytic assays showed 88% efficiency for atrazine photodegradation with all nanomaterials, which represented a 21% increase compared to photolysis in the 1st cycle. The magnetic nanocomposites when applied to a 5th cycle maintained the atrazine photodegradation activity. In this way, magnetic Nb2O5-based nanocomposites decorated with ferrite nanoparticles showed an efficient photocatalytic response, in addition to posterior magnetic removal from the aqueous medium. Therefore, the evaluated magnetic Nb2O5 nanocomposites may be an alternative to enhance the wastewater removal process and foster the reuse in advanced oxidative processes. |
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Palavras-Chave: |
Cobalt ferrite; Magnesium ferrite; Niobiumpentoxide magnetic nanocomposite. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02308naa a2200265 a 4500
001 2127149
005 2022-08-16
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11356-020-11262-5$2DOI
100 1 $aPARIS, E. C.
245 $aNb2O5 nanoparticles decorated with magnetic ferrites for wastewater photocatalytic remediation.$h[electronic resource]
260 $c2021
300 $ap. 23731-23741
520 $aNanotechnology has been studied on environmental remediation processes to foster greater photocatalysts efficiency and reuse in wastewater. This study investigated the photocatalytic efficiency and viability of niobium pentoxide (Nb2O5) nanoparticles decorated with magnetic ferrite (cobalt ferrite (CoFe2O4) or magnesium ferrite (MgFe2O4)) for atrazine photodegradation. Thus, the decorated Nb2O5 was synthesized by the polymeric precursor method, forming nanoparticles with sizes ranging from 25 to 50 nm. Nanocomposite elementary analyses showed a homogeneous distribution of elements on all particles surface. Efficient magnetic saturation was observed for pure CoFe2O4 (53 emu g−1) and MgFe2O4 (19 emu g−1) nanoparticles, promoting the magnetic removal of Nb2O5:CoFe2O4 and Nb2O5:MgFe2O4 nanocomposites. Photocatalytic assays showed 88% efficiency for atrazine photodegradation with all nanomaterials, which represented a 21% increase compared to photolysis in the 1st cycle. The magnetic nanocomposites when applied to a 5th cycle maintained the atrazine photodegradation activity. In this way, magnetic Nb2O5-based nanocomposites decorated with ferrite nanoparticles showed an efficient photocatalytic response, in addition to posterior magnetic removal from the aqueous medium. Therefore, the evaluated magnetic Nb2O5 nanocomposites may be an alternative to enhance the wastewater removal process and foster the reuse in advanced oxidative processes.
653 $aCobalt ferrite
653 $aMagnesium ferrite
653 $aNiobiumpentoxide magnetic nanocomposite
700 1 $aMALAFATTI, J. O. D.
700 1 $aSCIENA, C. R.
700 1 $aNEVES JUNIOR, L. F.
700 1 $aZENATTI, A.
700 1 $aESCOTE, M. T.
700 1 $aMOREIRA, A. J.
700 1 $aFRESCHI, G. P. G.
773 $tEnvironmental Science and Pollution Research,v. 28$gn. 19, 2021.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
07/06/2005 |
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Data da última atualização: |
15/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ACOSTA, A.; ROSINHA, R.; LANGE, A.; VIOLA, E.; DORO, C.; GADEA, C.; GERMANO, D.; BONIONE, D.; ALVES, F.; BONFADA, F.; BARCELLOS, L. A.; GARCIA, T.; RIGHI, V.; BOSSLE, W. |
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Afiliação: |
EMBRAPA-CNPMS. |
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Título: |
Transferência de tecnologia e fomento de variedades de milho em propriedades familiares: resultados da cooperação entre Embrapa e Emater/RS-Ascar no Rio Grande do Sul de 1995 a 2002. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Extensão Rural e Desenvolvimento Sustentável, Porto Alegre, v. 1, n. 1, p. 30-37, set./dez. 2004. |
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Idioma: |
Português |
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Palavras-Chave: |
Milho varietal; Propriedades familiares. |
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Thesagro: |
Transferência de Tecnologia. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/55093/1/Transferencia-tecnologia.pdf
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Marc: |
LEADER 00981naa a2200301 a 4500
001 1488695
005 2018-06-15
008 2004 bl uuuu u00u1 u #d
100 1 $aACOSTA, A.
245 $aTransferência de tecnologia e fomento de variedades de milho em propriedades familiares$bresultados da cooperação entre Embrapa e Emater/RS-Ascar no Rio Grande do Sul de 1995 a 2002.$h[electronic resource]
260 $c2004
650 $aTransferência de Tecnologia
653 $aMilho varietal
653 $aPropriedades familiares
700 1 $aROSINHA, R.
700 1 $aLANGE, A.
700 1 $aVIOLA, E.
700 1 $aDORO, C.
700 1 $aGADEA, C.
700 1 $aGERMANO, D.
700 1 $aBONIONE, D.
700 1 $aALVES, F.
700 1 $aBONFADA, F.
700 1 $aBARCELLOS, L. A.
700 1 $aGARCIA, T.
700 1 $aRIGHI, V.
700 1 $aBOSSLE, W.
773 $tExtensão Rural e Desenvolvimento Sustentável, Porto Alegre$gv. 1, n. 1, p. 30-37, set./dez. 2004.
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Embrapa Milho e Sorgo (CNPMS) |
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