Carbon black nanospheres modified with Cu (II)-phthalocyanine for electrochemical determination of Trimethoprim antibiotic
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
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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Repositório Institucional da UNESP |
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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 |