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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: |
30/11/2020 |
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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: |
RODRIGUES, T. A.; FALSSETI, P. H. E.; DEL DUQUE, D. M. S.; SILVA, G. T. S. T.; LOPES, O. F.; AVANSI JUNIOR, W.; RIBEIRO, C.; MENDONÇA, V. R. |
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Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
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Título: |
A versatile Nb2O5/SnO2 heterostructure for different environmental purposes: water treatment and artificial photosynthesis. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
ChemCatChem, v. 13, n. 2, 2021. |
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Páginas: |
p. 730-738 |
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DOI: |
10.1002/cctc.202001569 |
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Idioma: |
Inglês |
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Conteúdo: |
A versatile Nb2O5/SnO2 heterostructure, adequate for different processes, was successfully synthesized by adding SnO2 to the hydrothermal Nb2O5 synthesis process. The presence of SnO2 dispersed over Nb2O5 did not modify its crystalline structure. On the other hand, the properties of the material were strongly affected by coupling the semiconductors. The heterostructure exhibited enhanced photocatalytic performance compared to pure Nb2O5 in the degradation of rhodamine B dye and the amiloride medication under UV radiation, as well as during CO2 photoreduction. Moreover, the heterostructured material was more efficient at removing the cationic species methylene blue dye and Mn (II) from the aqueous solution through adsorption than pure Nb2O5. Its versatility has been explained by reference to the negative surface charge induced by SnO2 and the charge separation in the heterostructure, which increases their lifetimes, making it possible to reach the surface of the material and promote the reaction in the oxidative and reductive processes. Our results indicate that coupled Nb2O5/SnO2 can be a unique platform to different forms of environmental treatment. |
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Palavras-Chave: |
Oxidative and reductive processes; Photocatalytic performance; Photoreduction. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01997naa a2200265 a 4500
001 2127211
005 2022-08-16
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1002/cctc.202001569$2DOI
100 1 $aRODRIGUES, T. A.
245 $aA versatile Nb2O5/SnO2 heterostructure for different environmental purposes$bwater treatment and artificial photosynthesis.$h[electronic resource]
260 $c2021
300 $ap. 730-738
520 $aA versatile Nb2O5/SnO2 heterostructure, adequate for different processes, was successfully synthesized by adding SnO2 to the hydrothermal Nb2O5 synthesis process. The presence of SnO2 dispersed over Nb2O5 did not modify its crystalline structure. On the other hand, the properties of the material were strongly affected by coupling the semiconductors. The heterostructure exhibited enhanced photocatalytic performance compared to pure Nb2O5 in the degradation of rhodamine B dye and the amiloride medication under UV radiation, as well as during CO2 photoreduction. Moreover, the heterostructured material was more efficient at removing the cationic species methylene blue dye and Mn (II) from the aqueous solution through adsorption than pure Nb2O5. Its versatility has been explained by reference to the negative surface charge induced by SnO2 and the charge separation in the heterostructure, which increases their lifetimes, making it possible to reach the surface of the material and promote the reaction in the oxidative and reductive processes. Our results indicate that coupled Nb2O5/SnO2 can be a unique platform to different forms of environmental treatment.
653 $aOxidative and reductive processes
653 $aPhotocatalytic performance
653 $aPhotoreduction
700 1 $aFALSSETI, P. H. E.
700 1 $aDEL DUQUE, D. M. S.
700 1 $aSILVA, G. T. S. T.
700 1 $aLOPES, O. F.
700 1 $aAVANSI JUNIOR, W.
700 1 $aRIBEIRO, C.
700 1 $aMENDONÇA, V. R.
773 $tChemCatChem$gv. 13, n. 2, 2021.
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Embrapa Instrumentação (CNPDIA) |
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| Registros recuperados : 3 | |
| 1. |  | SOARES, F. C.; ALMEIDA, J. C. de; KOGA, R. H.; DEL DUQUE, D. M. S.; SILVA, G. T. S. T. da; RIBEIRO, C.; MENDONÇA, V. R. de. TiO2/BiVO4 composite from preformed nanoparticles for heterogeneous photocatalysis. Materials Chemistry and Physics, v. 290, e126588, 2022. 1 - 10| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Instrumentação. |
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| 2. | | RODRIGUES, T. A.; FALSSETI, P. H. E.; DEL DUQUE, D. M. S.; SILVA, G. T. S. T.; LOPES, O. F.; AVANSI JUNIOR, W.; RIBEIRO, C.; MENDONÇA, V. R. A versatile Nb2O5/SnO2 heterostructure for different environmental purposes: water treatment and artificial photosynthesis. ChemCatChem, v. 13, n. 2, 2021. p. 730-738| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Instrumentação. |
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| 3. | | ALMEIDA, J. C.; CORRÊA, M. T.; KOGA, R. H.; DEL DUQUE, D. M. S.; LOPES, O. F.; SILVA, G. T. S. T.; OLIVEIRA, C. R. de; MENDONÇA, V. R. Crystallization time in ZnO: the role of surface OH groups in its photoactivity. New Journal of Chemistry, v. 44, 2020. 18216-18224| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 3 | |
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