Comparative study of tetrasulfonated phthalocyanine modified screen-printed electrodes in paraquat
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.synthmet.2021.116988 http://hdl.handle.net/11449/222990 |
Resumo: | Emerging pollutants, including pesticides, have been an increasing problem to human and environmental health. Based on this, the development and optimization of sensors is an essential approach to controlling emerging pollutants. Here, screen-printed carbon electrodes (SPCE) modified with three MTsPc (FeTsPc, CuTsPc, or NiTsPc) were evaluated for voltammetric detection of paraquat (PQ). UV-Vis absorption and Raman spectroscopy coupled with optical microscopy were used to prove the metal center directly influences the aggregation of MTsPc on the electrode surfaces, which promotes variation on the redox couple of PQ. The adsorption of PQ2+ species was proportional to aggregation of MTsPc following the order FeTsPc > NiTsPc > CuTsPc. The FeTsPc/SPCE showed a better voltammetry response for PQ detection in both ultrapure and river water, being applied in sensing measurements. The differential pulse voltammetry analysis showed a linear range of 6.0–60 µmol/L with a limit of detection of 0.97 µmol/L in the standard sample and recovery of 103.3% in the river sample. The results indicate an excellent pertinence of sensing applications and the possibility of developing cheap devices. |
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Comparative study of tetrasulfonated phthalocyanine modified screen-printed electrodes in paraquatElectrochemical sensorPesticideRiver waterSurface modificationEmerging pollutants, including pesticides, have been an increasing problem to human and environmental health. Based on this, the development and optimization of sensors is an essential approach to controlling emerging pollutants. Here, screen-printed carbon electrodes (SPCE) modified with three MTsPc (FeTsPc, CuTsPc, or NiTsPc) were evaluated for voltammetric detection of paraquat (PQ). UV-Vis absorption and Raman spectroscopy coupled with optical microscopy were used to prove the metal center directly influences the aggregation of MTsPc on the electrode surfaces, which promotes variation on the redox couple of PQ. The adsorption of PQ2+ species was proportional to aggregation of MTsPc following the order FeTsPc > NiTsPc > CuTsPc. The FeTsPc/SPCE showed a better voltammetry response for PQ detection in both ultrapure and river water, being applied in sensing measurements. The differential pulse voltammetry analysis showed a linear range of 6.0–60 µmol/L with a limit of detection of 0.97 µmol/L in the standard sample and recovery of 103.3% in the river sample. The results indicate an excellent pertinence of sensing applications and the possibility of developing cheap devices.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)School of Technology and Applied Sciences São Paulo State University (UNESP)School of Technology and Applied Sciences São Paulo State University (UNESP)FAPESP: 2014/50869-6FAPESP: 2017/06534-8FAPESP: 2017/15019-0FAPESP: 2018/22214-6CAPES: 23038.000776/201754CNPq: 304836/2018-4CNPq: 422163/2018-0CNPq: 465572/2014-6Universidade Estadual Paulista (UNESP)Kavazoi, Henry S. [UNESP]Martin, Cibely S. [UNESP]Alessio, Priscila [UNESP]2022-04-28T19:47:54Z2022-04-28T19:47:54Z2022-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.synthmet.2021.116988Synthetic Metals, v. 284.0379-6779http://hdl.handle.net/11449/22299010.1016/j.synthmet.2021.1169882-s2.0-85120673829Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSynthetic Metalsinfo:eu-repo/semantics/openAccess2022-04-28T19:47:54Zoai:repositorio.unesp.br:11449/222990Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T19:47:54Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Comparative study of tetrasulfonated phthalocyanine modified screen-printed electrodes in paraquat |
title |
Comparative study of tetrasulfonated phthalocyanine modified screen-printed electrodes in paraquat |
spellingShingle |
Comparative study of tetrasulfonated phthalocyanine modified screen-printed electrodes in paraquat Kavazoi, Henry S. [UNESP] Electrochemical sensor Pesticide River water Surface modification |
title_short |
Comparative study of tetrasulfonated phthalocyanine modified screen-printed electrodes in paraquat |
title_full |
Comparative study of tetrasulfonated phthalocyanine modified screen-printed electrodes in paraquat |
title_fullStr |
Comparative study of tetrasulfonated phthalocyanine modified screen-printed electrodes in paraquat |
title_full_unstemmed |
Comparative study of tetrasulfonated phthalocyanine modified screen-printed electrodes in paraquat |
title_sort |
Comparative study of tetrasulfonated phthalocyanine modified screen-printed electrodes in paraquat |
author |
Kavazoi, Henry S. [UNESP] |
author_facet |
Kavazoi, Henry S. [UNESP] Martin, Cibely S. [UNESP] Alessio, Priscila [UNESP] |
author_role |
author |
author2 |
Martin, Cibely S. [UNESP] Alessio, Priscila [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Kavazoi, Henry S. [UNESP] Martin, Cibely S. [UNESP] Alessio, Priscila [UNESP] |
dc.subject.por.fl_str_mv |
Electrochemical sensor Pesticide River water Surface modification |
topic |
Electrochemical sensor Pesticide River water Surface modification |
description |
Emerging pollutants, including pesticides, have been an increasing problem to human and environmental health. Based on this, the development and optimization of sensors is an essential approach to controlling emerging pollutants. Here, screen-printed carbon electrodes (SPCE) modified with three MTsPc (FeTsPc, CuTsPc, or NiTsPc) were evaluated for voltammetric detection of paraquat (PQ). UV-Vis absorption and Raman spectroscopy coupled with optical microscopy were used to prove the metal center directly influences the aggregation of MTsPc on the electrode surfaces, which promotes variation on the redox couple of PQ. The adsorption of PQ2+ species was proportional to aggregation of MTsPc following the order FeTsPc > NiTsPc > CuTsPc. The FeTsPc/SPCE showed a better voltammetry response for PQ detection in both ultrapure and river water, being applied in sensing measurements. The differential pulse voltammetry analysis showed a linear range of 6.0–60 µmol/L with a limit of detection of 0.97 µmol/L in the standard sample and recovery of 103.3% in the river sample. The results indicate an excellent pertinence of sensing applications and the possibility of developing cheap devices. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04-28T19:47:54Z 2022-04-28T19:47:54Z 2022-03-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.synthmet.2021.116988 Synthetic Metals, v. 284. 0379-6779 http://hdl.handle.net/11449/222990 10.1016/j.synthmet.2021.116988 2-s2.0-85120673829 |
url |
http://dx.doi.org/10.1016/j.synthmet.2021.116988 http://hdl.handle.net/11449/222990 |
identifier_str_mv |
Synthetic Metals, v. 284. 0379-6779 10.1016/j.synthmet.2021.116988 2-s2.0-85120673829 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Synthetic Metals |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803047391097520128 |