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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 |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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| Acesso ao texto completo restrito à biblioteca da Embrapa Agroenergia. Para informações adicionais entre em contato com cnpae.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agroenergia. |
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Data corrente: |
26/02/2020 |
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Data da última atualização: |
26/02/2020 |
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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: |
SCHNEIDER, W. D. H.; LOSADA, C. B.; MOLDES, D.; FONTANA, R. C.; SIQUEIRA, F. G. de; PRIRTO, A.; MARTíNEZ, M. J.; MARTÍNEZ, A. T.; DILLON, A. J. P.; CAMASSOLA, M. |
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Afiliação: |
Willian Daniel Hahn Schneider, Universidade de Caxias do Sul; Cristian Bolan?o Losada, Universidade de Vigo, Espanha; Diego Moldes, Universidade de Vigo, Espanha; Roselei Claudete Fontana, Universidade de Caxias do Sul; FELIX GONCALVES DE SIQUEIRA, CNPAE; Alicia Prieto, Biological Research Center, Madrid, Espanha; María Jesu?s Martínez, Biological Research Center, Madrid, Espanha; A?ngel T. Martínez, Biological Research Center, Madrid, Espanha; Aldo Jose? Pinheiro Dillon, UNIVERSIDADE DE CAXIAS DO SUL, RS; Marli Camassola, UNIVERSIDADE DE CAXIAS DO SUL, RS. |
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Título: |
A sustainable approach of enzymatic grafting on Eucalyptus globulus Wood by Laccase from the newly isolated white-rot basidiomycete Marasmiellus palmivorus VE111. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
ACS Sustainable: chemistry & engeineering. |
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Páginas: |
13418-13424 |
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Idioma: |
Inglês |
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Palavras-Chave: |
Environmentally friendly process; Hydrophobization veneers; Mediators; Phenolic substrates. |
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Thesaurus NAL: |
Guaiacol. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00924naa a2200289 a 4500
001 2120552
005 2020-02-26
008 2019 bl uuuu u00u1 u #d
100 1 $aSCHNEIDER, W. D. H.
245 $aA sustainable approach of enzymatic grafting on Eucalyptus globulus Wood by Laccase from the newly isolated white-rot basidiomycete Marasmiellus palmivorus VE111.$h[electronic resource]
260 $c2019
300 $a13418-13424
650 $aGuaiacol
653 $aEnvironmentally friendly process
653 $aHydrophobization veneers
653 $aMediators
653 $aPhenolic substrates
700 1 $aLOSADA, C. B.
700 1 $aMOLDES, D.
700 1 $aFONTANA, R. C.
700 1 $aSIQUEIRA, F. G. de
700 1 $aPRIRTO, A.
700 1 $aMARTíNEZ, M. J.
700 1 $aMARTÍNEZ, A. T.
700 1 $aDILLON, A. J. P.
700 1 $aCAMASSOLA, M.
773 $tACS Sustainable: chemistry & engeineering.
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Registro original: |
Embrapa Agroenergia (CNPAE) |
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