Carbon black nanospheres modified with Cu (II)-phthalocyanine for electrochemical determination of Trimethoprim antibiotic

Detalhes bibliográficos
Autor(a) principal: Guaraldo, Thais T.
Data de Publicação: 2019
Outros Autores: Goulart, Lorena A., Moraes, Fernando C., Lanza, Marcos R.V. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.apsusc.2018.09.226
http://hdl.handle.net/11449/187090
Resumo: This work investigates the electrochemical sensing properties of glassy carbon (GC) electrodes modified with Printex L6 carbon black (PC) and copper (II) phthalocyanine (CuPh) films. Successful incorporation of the CuPh into carbon black was confirmed by FEG-SEM, EDS and TEM analysis. The transition from nanocrystalline graphite to amorphous carbon material could be evidenced for Printex L6 carbon black using Raman analysis. The modified material (CuPh/PC/GC) demonstrated electrocatalytic effect towards TMP detection according to cyclic voltammetric studies. CuPh modification resulted in strong adsorption to carbon black and TMP due to π-π interactions. Scan rate studies proved reactions across the electrode/electrolyte interface progressively change from adsorption to diffusion. The developed method presented linear relationship in the ranges of 0.4–1.1 µmol L −1 and 1.5–6.0 µmol L −1 with limit of detection of 0.6 µmol L −1 under optimized experimental conditions. The proposed CuPh/PC/GC electrode was effectively employed towards the detection of TMP in natural water samples.
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spelling Carbon black nanospheres modified with Cu (II)-phthalocyanine for electrochemical determination of Trimethoprim antibioticCarbon blackCopper phthalocyanineEnvironmental samplesPrintex L6Trimethoprim determinationThis work investigates the electrochemical sensing properties of glassy carbon (GC) electrodes modified with Printex L6 carbon black (PC) and copper (II) phthalocyanine (CuPh) films. Successful incorporation of the CuPh into carbon black was confirmed by FEG-SEM, EDS and TEM analysis. The transition from nanocrystalline graphite to amorphous carbon material could be evidenced for Printex L6 carbon black using Raman analysis. The modified material (CuPh/PC/GC) demonstrated electrocatalytic effect towards TMP detection according to cyclic voltammetric studies. CuPh modification resulted in strong adsorption to carbon black and TMP due to π-π interactions. Scan rate studies proved reactions across the electrode/electrolyte interface progressively change from adsorption to diffusion. The developed method presented linear relationship in the ranges of 0.4–1.1 µmol L −1 and 1.5–6.0 µmol L −1 with limit of detection of 0.6 µmol L −1 under optimized experimental conditions. The proposed CuPh/PC/GC electrode was effectively employed towards the detection of TMP in natural water samples.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)São Carlos Institute of Chemistry University of São PauloChemistry Department Federal University of São CarlosNational Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of Chemistry of UnespNational Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) Institute of Chemistry of UnespUniversidade de São Paulo (USP)Universidade Federal de São Carlos (UFSCar)Universidade Estadual Paulista (Unesp)Guaraldo, Thais T.Goulart, Lorena A.Moraes, Fernando C.Lanza, Marcos R.V. [UNESP]2019-10-06T15:25:15Z2019-10-06T15:25:15Z2019-03-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article555-564http://dx.doi.org/10.1016/j.apsusc.2018.09.226Applied Surface Science, v. 470, p. 555-564.0169-4332http://hdl.handle.net/11449/18709010.1016/j.apsusc.2018.09.2262-s2.0-85057062715Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengApplied Surface Scienceinfo:eu-repo/semantics/openAccess2021-10-23T15:55:04Zoai:repositorio.unesp.br:11449/187090Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:54:10.288766Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Carbon black nanospheres modified with Cu (II)-phthalocyanine for electrochemical determination of Trimethoprim antibiotic
title Carbon black nanospheres modified with Cu (II)-phthalocyanine for electrochemical determination of Trimethoprim antibiotic
spellingShingle Carbon black nanospheres modified with Cu (II)-phthalocyanine for electrochemical determination of Trimethoprim antibiotic
Guaraldo, Thais T.
Carbon black
Copper phthalocyanine
Environmental samples
Printex L6
Trimethoprim determination
title_short Carbon black nanospheres modified with Cu (II)-phthalocyanine for electrochemical determination of Trimethoprim antibiotic
title_full Carbon black nanospheres modified with Cu (II)-phthalocyanine for electrochemical determination of Trimethoprim antibiotic
title_fullStr Carbon black nanospheres modified with Cu (II)-phthalocyanine for electrochemical determination of Trimethoprim antibiotic
title_full_unstemmed Carbon black nanospheres modified with Cu (II)-phthalocyanine for electrochemical determination of Trimethoprim antibiotic
title_sort Carbon black nanospheres modified with Cu (II)-phthalocyanine for electrochemical determination of Trimethoprim antibiotic
author Guaraldo, Thais T.
author_facet Guaraldo, Thais T.
Goulart, Lorena A.
Moraes, Fernando C.
Lanza, Marcos R.V. [UNESP]
author_role author
author2 Goulart, Lorena A.
Moraes, Fernando C.
Lanza, Marcos R.V. [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade de São Paulo (USP)
Universidade Federal de São Carlos (UFSCar)
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Guaraldo, Thais T.
Goulart, Lorena A.
Moraes, Fernando C.
Lanza, Marcos R.V. [UNESP]
dc.subject.por.fl_str_mv Carbon black
Copper phthalocyanine
Environmental samples
Printex L6
Trimethoprim determination
topic Carbon black
Copper phthalocyanine
Environmental samples
Printex L6
Trimethoprim determination
description This work investigates the electrochemical sensing properties of glassy carbon (GC) electrodes modified with Printex L6 carbon black (PC) and copper (II) phthalocyanine (CuPh) films. Successful incorporation of the CuPh into carbon black was confirmed by FEG-SEM, EDS and TEM analysis. The transition from nanocrystalline graphite to amorphous carbon material could be evidenced for Printex L6 carbon black using Raman analysis. The modified material (CuPh/PC/GC) demonstrated electrocatalytic effect towards TMP detection according to cyclic voltammetric studies. CuPh modification resulted in strong adsorption to carbon black and TMP due to π-π interactions. Scan rate studies proved reactions across the electrode/electrolyte interface progressively change from adsorption to diffusion. The developed method presented linear relationship in the ranges of 0.4–1.1 µmol L −1 and 1.5–6.0 µmol L −1 with limit of detection of 0.6 µmol L −1 under optimized experimental conditions. The proposed CuPh/PC/GC electrode was effectively employed towards the detection of TMP in natural water samples.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-06T15:25:15Z
2019-10-06T15:25:15Z
2019-03-15
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.apsusc.2018.09.226
Applied Surface Science, v. 470, p. 555-564.
0169-4332
http://hdl.handle.net/11449/187090
10.1016/j.apsusc.2018.09.226
2-s2.0-85057062715
url http://dx.doi.org/10.1016/j.apsusc.2018.09.226
http://hdl.handle.net/11449/187090
identifier_str_mv Applied Surface Science, v. 470, p. 555-564.
0169-4332
10.1016/j.apsusc.2018.09.226
2-s2.0-85057062715
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Applied Surface Science
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 555-564
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_ 1808128433630216192

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