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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: |
23/06/2021 |
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Data da última atualização: |
10/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CONTI, P. P.; ANDRÉ, R. S.; MERCANTE, L. A.; FUGIKAWA-SANTOS, L.; CORREA, D. S. |
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Afiliação: |
DANIEL SOUZA CORREA, CNPDIA. |
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Título: |
Discriminative detection of volatile organic compounds using an electronic nose based on TiO2 hybrid nanostructures. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Sensors and Actuators: B. Chemical, v. 344, e130124, 2021. |
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ISSN: |
0925-4005 |
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DOI: |
https://doi.org/10.1016/j.snb.2021.130124 |
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Idioma: |
Inglês |
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Conteúdo: |
Volatile organic compounds (VOCs) are environmental pollutants that pose risks to the human health even at very low concentrations. Therefore, fast and sensitive analytical methods capable to discriminate VOCs are highly demanded. Herein, we have successfully synthetized and characterized TiO2 nanofibers (NF) by electrospinning and TiO2 nanoparticles (NP) by sol-gel method to be employed in an electronic nose (e-nose) for monitoring VOCs. Electrical comparison between TiO2-NF and TiO2-NP indicated that the former presented better electrical response, which can be attributed to the better charge transfer along the nanofiber framework. The TiO2 nanostructures were combined with three different polymers, namely poly(3,4- ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS), polypyrrole (PPy), and polystyrene sulfonate (PSS), which obtained nanocomposites were deposit by drop casting onto gold interdigitated electrodes and used as sensing units of the e-nose. Electrical impedance spectroscopy measurements were employed to collect the enose electrical resistance data, which were treated by Principal Component Analysis (PCA), revealing the system was able to discriminate the three VOCs. Our results indicate that the e-nose system has potential to be employed as a rapid and simple alternative in the detection of VOCs. |
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Palavras-Chave: |
E-nose; TiO2 nanofibers; TiO2 nanoparticles; VOCs sensor. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02092naa a2200241 a 4500
001 2132522
005 2022-06-10
008 2021 bl uuuu u00u1 u #d
022 $a0925-4005
024 7 $ahttps://doi.org/10.1016/j.snb.2021.130124$2DOI
100 1 $aCONTI, P. P.
245 $aDiscriminative detection of volatile organic compounds using an electronic nose based on TiO2 hybrid nanostructures.$h[electronic resource]
260 $c2021
520 $aVolatile organic compounds (VOCs) are environmental pollutants that pose risks to the human health even at very low concentrations. Therefore, fast and sensitive analytical methods capable to discriminate VOCs are highly demanded. Herein, we have successfully synthetized and characterized TiO2 nanofibers (NF) by electrospinning and TiO2 nanoparticles (NP) by sol-gel method to be employed in an electronic nose (e-nose) for monitoring VOCs. Electrical comparison between TiO2-NF and TiO2-NP indicated that the former presented better electrical response, which can be attributed to the better charge transfer along the nanofiber framework. The TiO2 nanostructures were combined with three different polymers, namely poly(3,4- ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS), polypyrrole (PPy), and polystyrene sulfonate (PSS), which obtained nanocomposites were deposit by drop casting onto gold interdigitated electrodes and used as sensing units of the e-nose. Electrical impedance spectroscopy measurements were employed to collect the enose electrical resistance data, which were treated by Principal Component Analysis (PCA), revealing the system was able to discriminate the three VOCs. Our results indicate that the e-nose system has potential to be employed as a rapid and simple alternative in the detection of VOCs.
653 $aE-nose
653 $aTiO2 nanofibers
653 $aTiO2 nanoparticles
653 $aVOCs sensor
700 1 $aANDRÉ, R. S.
700 1 $aMERCANTE, L. A.
700 1 $aFUGIKAWA-SANTOS, L.
700 1 $aCORREA, D. S.
773 $tSensors and Actuators: B. Chemical$gv. 344, e130124, 2021.
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| Registros recuperados : 3 | |
| 1. |  | ALBUQUERQUE, F. A. de; ARRIEL, N. H. C.; ALVES, I.; GUIMARÃES, F. M.; VALE, D. G.; FONTINELE, F.; BLACKBURN, R.; SOUZA, F.; SANTIAGO, F.; BLOCH, D. Diagnóstico da produção de algodão agroecológico no Cariri paraibano. In: CONGRESSO BRASILEIRO DO ALGODÃO, 7., 2009, Foz do Iguaçu. Sustentabilidade da cotonicultura brasileira e expansão dos mercados: anais. Campina Grande: Embrapa Algodão, 2009. 1 CD-ROM| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Algodão. |
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| 2. | | VALE, D. G.; BLOCH, D.; ALBUQUERQUE, F. A. de; SANTIAGO, F. S.; GUIMARAES, F. M.; ALVES, I.; SILVA, J. C. A. da; ARRIEL, N. H. C.; LIMA, P. J. B. FERREIRA. Algodão em consórcios agroecológicos. Campina Grande: Embrapa Algodão, 2009. 1 folder| Tipo: Folder/Folheto/Cartilha |
| Biblioteca(s): Embrapa Algodão. |
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| 3. | | VALE, D. G.; BLOCH, D.; ALBUQUERQUE, F. A. de; SANTIAGO, F. S.; GUIMARAES, F. M.; ALVES, I.; SILVA, J. C. A. da; ARRIEL, N. H. C.; LIMA, P. J. B. FERREIRA; SILVA, V. A. da. Algodão em consórcios agroecológicos. 3. ed. Campina Grande: Embrapa Algodão, 2011. 1 folder| Biblioteca(s): Embrapa Algodão. |
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| Registros recuperados : 3 | |
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