DESENVOLVIMENTO DE UMA PLATAFORMA FOTOELETROQUÍMICA BASEADA EM SELENETO DE CÁDMIO PARA DETERMINAÇÃO DE TERC-BUTIL-HIDROQUINONA (TBHQ)
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFMA |
Texto Completo: | https://tedebc.ufma.br/jspui/handle/tede/tede/4056 |
Resumo: | Tert-butyl-hydroquinone (TBHQ) is a synthetic antioxidant phenolic compound applied by the food and fuel industries to avoid oxidative stress and ensure the quality and shelf life of these products. However, the excessive use of this compound can lead to potential and toxic damages to human health. In view of this, a photoelectrochemical plataform was developed through the synthesis of n-CdSe semiconductor film for the detection of TBHQ. The CdSe/FTO electrode was constructed by electrodeposition of the material on the electrode surface by cyclic voltammetry technique in a conventional three-electrode electrochemical cell. The electrochemical characterization of the material was performed by electrochemical impedance spectroscopy, analyzing the electronic properties using Mott-Schottky graphs and electrical resistance using Nyquist graphs. The optical characteristics were studied by ultraviolet-visible absorption spectrophotometry. The CdSe band gap obtained was 1.74 eV. Under the experimental and operational conditions applied to the photoelectrochemical sensor, an anodic photocurrent was obtained under an applied potential of 0.3 V in 0.1 M PBS medium at pH 7.0. The proposed sensor presented a linear response of 10 μmol L-1 to 500 μmol L-1 of TBHQ whose regression coefficient was equal to R2 = 0.9963. The modified electrode was applied to the real sample of apple juice fortified with TBHQ solution and recovery values between 89.60% to 98.80% were obtained. Therefore, CdSe/FTO is a promising photoelectrochemical platform for TBHQ determination. |
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DAMOS, Flavio Santoshttp://lattes.cnpq.br/0915687070195770DAMOS, Flavio Santoshttp://lattes.cnpq.br/0915687070195770ARAÚJO, Adriana Barbosahttp://lattes.cnpq.br/1008844766307732LIMA, Roberto Batista dehttp://lattes.cnpq.br/4982744838486744http://lattes.cnpq.br/5461645336507308REIS, José Lucas Costa2022-09-02T10:56:33Z2022-06-27REIS, José Lucas Costa. Desenvolvimento de uma plataforma fotoeletroquímica baseada em Seleneto de Cádmio para determinação de Terc-Butil-Hidroquinona (TBHQ). 2022. 67 f. Dissertação( Programa de Pós-Graduação em Química/CCET) - Universidade Federal do Maranhão, São Luís, 2022.https://tedebc.ufma.br/jspui/handle/tede/tede/4056Tert-butyl-hydroquinone (TBHQ) is a synthetic antioxidant phenolic compound applied by the food and fuel industries to avoid oxidative stress and ensure the quality and shelf life of these products. However, the excessive use of this compound can lead to potential and toxic damages to human health. In view of this, a photoelectrochemical plataform was developed through the synthesis of n-CdSe semiconductor film for the detection of TBHQ. The CdSe/FTO electrode was constructed by electrodeposition of the material on the electrode surface by cyclic voltammetry technique in a conventional three-electrode electrochemical cell. The electrochemical characterization of the material was performed by electrochemical impedance spectroscopy, analyzing the electronic properties using Mott-Schottky graphs and electrical resistance using Nyquist graphs. The optical characteristics were studied by ultraviolet-visible absorption spectrophotometry. The CdSe band gap obtained was 1.74 eV. Under the experimental and operational conditions applied to the photoelectrochemical sensor, an anodic photocurrent was obtained under an applied potential of 0.3 V in 0.1 M PBS medium at pH 7.0. The proposed sensor presented a linear response of 10 μmol L-1 to 500 μmol L-1 of TBHQ whose regression coefficient was equal to R2 = 0.9963. The modified electrode was applied to the real sample of apple juice fortified with TBHQ solution and recovery values between 89.60% to 98.80% were obtained. Therefore, CdSe/FTO is a promising photoelectrochemical platform for TBHQ determination.A terc-butil-hidroquinona (TBHQ) é um composto fenólico antioxidante sintético aplicado pelas indústrias em alimentos e combustíveis para evitar o estresse oxidativo e garantir a qualidade e tempo de prateleira desses produtos. Contudo, o uso em excesso deste composto pode levar a danos potenciais e tóxicos à saúde humana. Em vista disto, uma plataforma fotoeletroquímica foi desenvolvida através da síntese de filme semicondutor n-CdSe para detecção de TBHQ. O eletrodo CdSe/FTO foi construído através da eletrodeposição do material pela técnica de voltametria cíclica em célula eletroquímica convencional de três eletrodos. A caracterização do material foi realizada por espectroscopia de impedância eletroquímica, analisando as propriedades eletrônicas do material através de gráficos de Mott-Schottky e resistência elétrica a partir dos gráficos de Nyquist. As características ópticas foram estudadas por espectrofotometria de absorção no ultravioleta–visível. O band gap do CdSe obtido foi de 1,74 eV. Sob as condições experimentais e operacionais aplicadas ao sensor fotoeletroquímico obteve-se uma fotocorrente anódica sob um potencial aplicado de 0,3 V em meio PBS 0,1 M de pH 7,0. O sensor proposto apresentou uma resposta linear de 10 μmol L-1 à 500 μmol L-1 de TBHQ cujo coeficiente de regressão obtido foi igual a R2 = 0,9963. O eletrodo modificado foi aplicado à amostra real de suco de maçã fortificada com solução de TBHQ e obteve-se valores de recuperação entre 89,60% à 98,80%. Logo, o CdSe/FTO é uma plataforma fotoeletroquímica promissora para determinação de TBHQ.Submitted by Maria Aparecida (cidazen@gmail.com) on 2022-09-02T10:56:33Z No. of bitstreams: 1 José Lucas Costa Reis.pdf: 449453 bytes, checksum: f6631a08885287c559634cffed96c81f (MD5)Made available in DSpace on 2022-09-02T10:56:33Z (GMT). No. of bitstreams: 1 José Lucas Costa Reis.pdf: 449453 bytes, checksum: f6631a08885287c559634cffed96c81f (MD5) Previous issue date: 2022-06-27FAPEMAapplication/pdfporUniversidade Federal do MaranhãoPROGRAMA DE PÓS-GRADUAÇÃO EM QUÍMICA/CCETUFMABrasilDEPARTAMENTO DE QUÍMICA/CCETDetecção de Terc-butil-hidroquinona;Fotoeletroquímica;Sensores;Seleneto de CádmioDetection of Tert-butyl-hydroquinone;Photoelectrochemistry;Sensors;Cadmium SelenideQuímica AnalíticaDESENVOLVIMENTO DE UMA PLATAFORMA FOTOELETROQUÍMICA BASEADA EM SELENETO DE CÁDMIO PARA DETERMINAÇÃO DE TERC-BUTIL-HIDROQUINONA (TBHQ)DEVELOPMENT OF A PLATFORM PHOTOELECTROCHEMISTRY BASED ON CADMIUM SELECTION FOR DETERMINATION OF TERC-BUTYL-HYDROQUINONE (TBHQ)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFMAinstname:Universidade Federal do Maranhão (UFMA)instacron:UFMAORIGINALJ.Lucas rec.pdfJ.Lucas rec.pdfapplication/pdf22623681http://tedebc.ufma.br:8080/bitstream/tede/4056/2/J.Lucas+rec.pdfd33c517319e9c89438f22c500eaf2b23MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82255http://tedebc.ufma.br:8080/bitstream/tede/4056/1/license.txt97eeade1fce43278e63fe063657f8083MD51tede/40562022-09-02 08:05:13.79oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttps://tedebc.ufma.br/jspui/PUBhttp://tedebc.ufma.br:8080/oai/requestrepositorio@ufma.br||repositorio@ufma.bropendoar:21312022-09-02T11:05:13Biblioteca Digital de Teses e Dissertações da UFMA - Universidade Federal do Maranhão (UFMA)false |
dc.title.por.fl_str_mv |
DESENVOLVIMENTO DE UMA PLATAFORMA FOTOELETROQUÍMICA BASEADA EM SELENETO DE CÁDMIO PARA DETERMINAÇÃO DE TERC-BUTIL-HIDROQUINONA (TBHQ) |
dc.title.alternative.eng.fl_str_mv |
DEVELOPMENT OF A PLATFORM PHOTOELECTROCHEMISTRY BASED ON CADMIUM SELECTION FOR DETERMINATION OF TERC-BUTYL-HYDROQUINONE (TBHQ) |
title |
DESENVOLVIMENTO DE UMA PLATAFORMA FOTOELETROQUÍMICA BASEADA EM SELENETO DE CÁDMIO PARA DETERMINAÇÃO DE TERC-BUTIL-HIDROQUINONA (TBHQ) |
spellingShingle |
DESENVOLVIMENTO DE UMA PLATAFORMA FOTOELETROQUÍMICA BASEADA EM SELENETO DE CÁDMIO PARA DETERMINAÇÃO DE TERC-BUTIL-HIDROQUINONA (TBHQ) REIS, José Lucas Costa Detecção de Terc-butil-hidroquinona; Fotoeletroquímica; Sensores; Seleneto de Cádmio Detection of Tert-butyl-hydroquinone; Photoelectrochemistry; Sensors; Cadmium Selenide Química Analítica |
title_short |
DESENVOLVIMENTO DE UMA PLATAFORMA FOTOELETROQUÍMICA BASEADA EM SELENETO DE CÁDMIO PARA DETERMINAÇÃO DE TERC-BUTIL-HIDROQUINONA (TBHQ) |
title_full |
DESENVOLVIMENTO DE UMA PLATAFORMA FOTOELETROQUÍMICA BASEADA EM SELENETO DE CÁDMIO PARA DETERMINAÇÃO DE TERC-BUTIL-HIDROQUINONA (TBHQ) |
title_fullStr |
DESENVOLVIMENTO DE UMA PLATAFORMA FOTOELETROQUÍMICA BASEADA EM SELENETO DE CÁDMIO PARA DETERMINAÇÃO DE TERC-BUTIL-HIDROQUINONA (TBHQ) |
title_full_unstemmed |
DESENVOLVIMENTO DE UMA PLATAFORMA FOTOELETROQUÍMICA BASEADA EM SELENETO DE CÁDMIO PARA DETERMINAÇÃO DE TERC-BUTIL-HIDROQUINONA (TBHQ) |
title_sort |
DESENVOLVIMENTO DE UMA PLATAFORMA FOTOELETROQUÍMICA BASEADA EM SELENETO DE CÁDMIO PARA DETERMINAÇÃO DE TERC-BUTIL-HIDROQUINONA (TBHQ) |
author |
REIS, José Lucas Costa |
author_facet |
REIS, José Lucas Costa |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
DAMOS, Flavio Santos |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/0915687070195770 |
dc.contributor.referee1.fl_str_mv |
DAMOS, Flavio Santos |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/0915687070195770 |
dc.contributor.referee2.fl_str_mv |
ARAÚJO, Adriana Barbosa |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/1008844766307732 |
dc.contributor.referee3.fl_str_mv |
LIMA, Roberto Batista de |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/4982744838486744 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/5461645336507308 |
dc.contributor.author.fl_str_mv |
REIS, José Lucas Costa |
contributor_str_mv |
DAMOS, Flavio Santos DAMOS, Flavio Santos ARAÚJO, Adriana Barbosa LIMA, Roberto Batista de |
dc.subject.por.fl_str_mv |
Detecção de Terc-butil-hidroquinona; Fotoeletroquímica; Sensores; Seleneto de Cádmio |
topic |
Detecção de Terc-butil-hidroquinona; Fotoeletroquímica; Sensores; Seleneto de Cádmio Detection of Tert-butyl-hydroquinone; Photoelectrochemistry; Sensors; Cadmium Selenide Química Analítica |
dc.subject.eng.fl_str_mv |
Detection of Tert-butyl-hydroquinone; Photoelectrochemistry; Sensors; Cadmium Selenide |
dc.subject.cnpq.fl_str_mv |
Química Analítica |
description |
Tert-butyl-hydroquinone (TBHQ) is a synthetic antioxidant phenolic compound applied by the food and fuel industries to avoid oxidative stress and ensure the quality and shelf life of these products. However, the excessive use of this compound can lead to potential and toxic damages to human health. In view of this, a photoelectrochemical plataform was developed through the synthesis of n-CdSe semiconductor film for the detection of TBHQ. The CdSe/FTO electrode was constructed by electrodeposition of the material on the electrode surface by cyclic voltammetry technique in a conventional three-electrode electrochemical cell. The electrochemical characterization of the material was performed by electrochemical impedance spectroscopy, analyzing the electronic properties using Mott-Schottky graphs and electrical resistance using Nyquist graphs. The optical characteristics were studied by ultraviolet-visible absorption spectrophotometry. The CdSe band gap obtained was 1.74 eV. Under the experimental and operational conditions applied to the photoelectrochemical sensor, an anodic photocurrent was obtained under an applied potential of 0.3 V in 0.1 M PBS medium at pH 7.0. The proposed sensor presented a linear response of 10 μmol L-1 to 500 μmol L-1 of TBHQ whose regression coefficient was equal to R2 = 0.9963. The modified electrode was applied to the real sample of apple juice fortified with TBHQ solution and recovery values between 89.60% to 98.80% were obtained. Therefore, CdSe/FTO is a promising photoelectrochemical platform for TBHQ determination. |
publishDate |
2022 |
dc.date.accessioned.fl_str_mv |
2022-09-02T10:56:33Z |
dc.date.issued.fl_str_mv |
2022-06-27 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
REIS, José Lucas Costa. Desenvolvimento de uma plataforma fotoeletroquímica baseada em Seleneto de Cádmio para determinação de Terc-Butil-Hidroquinona (TBHQ). 2022. 67 f. Dissertação( Programa de Pós-Graduação em Química/CCET) - Universidade Federal do Maranhão, São Luís, 2022. |
dc.identifier.uri.fl_str_mv |
https://tedebc.ufma.br/jspui/handle/tede/tede/4056 |
identifier_str_mv |
REIS, José Lucas Costa. Desenvolvimento de uma plataforma fotoeletroquímica baseada em Seleneto de Cádmio para determinação de Terc-Butil-Hidroquinona (TBHQ). 2022. 67 f. Dissertação( Programa de Pós-Graduação em Química/CCET) - Universidade Federal do Maranhão, São Luís, 2022. |
url |
https://tedebc.ufma.br/jspui/handle/tede/tede/4056 |
dc.language.iso.fl_str_mv |
por |
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por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal do Maranhão |
dc.publisher.program.fl_str_mv |
PROGRAMA DE PÓS-GRADUAÇÃO EM QUÍMICA/CCET |
dc.publisher.initials.fl_str_mv |
UFMA |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
DEPARTAMENTO DE QUÍMICA/CCET |
publisher.none.fl_str_mv |
Universidade Federal do Maranhão |
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