Antifungal properties of high efficient W/WO3 electrodes acting under UV-Vis and visible light and chloride medium
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.21577/0103-5053.20170053 http://hdl.handle.net/11449/175178 |
Resumo: | The present work investigates the use of W/WO3 electrodes prepared by electrochemical anodization applied in the photoelectrocatalytic disinfection of Candida parapsilosis using ultraviolet-visible (UV-Vis) and visible irradiation. The core objective of this work lies in describing a novel approach involving the use of chloride as supporting electrolyte, aiming at achieving a faster inactivation and towards understanding its behavior in water containing high chloride content. The best experimental conditions were found to be at pH 7.0 and 0.1 mol L-1 NaCl when the photoelectrode was biased at 1.5 V (vs. Ag/AgCl) illuminated by both UV-Vis and visible light. It is suggested that charges photogenerated on the electrode surface give rise preferably to HO•, known to be powerful oxidant that causes the total inactivation of the microorganism (1 min of treatment) while engendering around 84% of mineralization of organic matter released from the cell damage following 120 min of treatment. |
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Antifungal properties of high efficient W/WO3 electrodes acting under UV-Vis and visible light and chloride mediumC. Parapsilosis disinfectionPhotoelectrocatalysisPhotoelectrocatalysis in chloride mediumW/WO3 semicondutorThe present work investigates the use of W/WO3 electrodes prepared by electrochemical anodization applied in the photoelectrocatalytic disinfection of Candida parapsilosis using ultraviolet-visible (UV-Vis) and visible irradiation. The core objective of this work lies in describing a novel approach involving the use of chloride as supporting electrolyte, aiming at achieving a faster inactivation and towards understanding its behavior in water containing high chloride content. The best experimental conditions were found to be at pH 7.0 and 0.1 mol L-1 NaCl when the photoelectrode was biased at 1.5 V (vs. Ag/AgCl) illuminated by both UV-Vis and visible light. It is suggested that charges photogenerated on the electrode surface give rise preferably to HO•, known to be powerful oxidant that causes the total inactivation of the microorganism (1 min of treatment) while engendering around 84% of mineralization of organic matter released from the cell damage following 120 min of treatment.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Departamento de Química Analítica Instituto de Química UNESP, Rua Francisco Degni, 55 Bairro QuitandinhaDepartamento de Química Universidade Federal de Mato Grosso (UFMT)Departamento de Análises Clínicas Faculdade de Ciências Farmacêuticas UNESP, Rodovia Araraquara-Jaú, km 01Departamento de Química Analítica Instituto de Química UNESP, Rua Francisco Degni, 55 Bairro QuitandinhaDepartamento de Análises Clínicas Faculdade de Ciências Farmacêuticas UNESP, Rodovia Araraquara-Jaú, km 01Universidade Estadual Paulista (Unesp)Universidade Federal de Mato Grosso (UFMT)Souza, Barbara C. A. [UNESP]Guaraldo, Thais T. [UNESP]Brugnera, Michelle F.Pires, Regina H. [UNESP]Giannini, Maria J. S. M. [UNESP]Zanoni, Maria V. B. [UNESP]2018-12-11T17:14:42Z2018-12-11T17:14:42Z2017-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2084-2093application/pdfhttp://dx.doi.org/10.21577/0103-5053.20170053Journal of the Brazilian Chemical Society, v. 28, n. 11, p. 2084-2093, 2017.1678-47900103-5053http://hdl.handle.net/11449/17517810.21577/0103-5053.20170053S0103-505320170011020842-s2.0-85029535028S0103-50532017001102084.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Chemical Society0,3570,357info:eu-repo/semantics/openAccess2024-06-21T15:18:46Zoai:repositorio.unesp.br:11449/175178Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:32:43.258866Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Antifungal properties of high efficient W/WO3 electrodes acting under UV-Vis and visible light and chloride medium |
title |
Antifungal properties of high efficient W/WO3 electrodes acting under UV-Vis and visible light and chloride medium |
spellingShingle |
Antifungal properties of high efficient W/WO3 electrodes acting under UV-Vis and visible light and chloride medium Souza, Barbara C. A. [UNESP] C. Parapsilosis disinfection Photoelectrocatalysis Photoelectrocatalysis in chloride medium W/WO3 semicondutor |
title_short |
Antifungal properties of high efficient W/WO3 electrodes acting under UV-Vis and visible light and chloride medium |
title_full |
Antifungal properties of high efficient W/WO3 electrodes acting under UV-Vis and visible light and chloride medium |
title_fullStr |
Antifungal properties of high efficient W/WO3 electrodes acting under UV-Vis and visible light and chloride medium |
title_full_unstemmed |
Antifungal properties of high efficient W/WO3 electrodes acting under UV-Vis and visible light and chloride medium |
title_sort |
Antifungal properties of high efficient W/WO3 electrodes acting under UV-Vis and visible light and chloride medium |
author |
Souza, Barbara C. A. [UNESP] |
author_facet |
Souza, Barbara C. A. [UNESP] Guaraldo, Thais T. [UNESP] Brugnera, Michelle F. Pires, Regina H. [UNESP] Giannini, Maria J. S. M. [UNESP] Zanoni, Maria V. B. [UNESP] |
author_role |
author |
author2 |
Guaraldo, Thais T. [UNESP] Brugnera, Michelle F. Pires, Regina H. [UNESP] Giannini, Maria J. S. M. [UNESP] Zanoni, Maria V. B. [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal de Mato Grosso (UFMT) |
dc.contributor.author.fl_str_mv |
Souza, Barbara C. A. [UNESP] Guaraldo, Thais T. [UNESP] Brugnera, Michelle F. Pires, Regina H. [UNESP] Giannini, Maria J. S. M. [UNESP] Zanoni, Maria V. B. [UNESP] |
dc.subject.por.fl_str_mv |
C. Parapsilosis disinfection Photoelectrocatalysis Photoelectrocatalysis in chloride medium W/WO3 semicondutor |
topic |
C. Parapsilosis disinfection Photoelectrocatalysis Photoelectrocatalysis in chloride medium W/WO3 semicondutor |
description |
The present work investigates the use of W/WO3 electrodes prepared by electrochemical anodization applied in the photoelectrocatalytic disinfection of Candida parapsilosis using ultraviolet-visible (UV-Vis) and visible irradiation. The core objective of this work lies in describing a novel approach involving the use of chloride as supporting electrolyte, aiming at achieving a faster inactivation and towards understanding its behavior in water containing high chloride content. The best experimental conditions were found to be at pH 7.0 and 0.1 mol L-1 NaCl when the photoelectrode was biased at 1.5 V (vs. Ag/AgCl) illuminated by both UV-Vis and visible light. It is suggested that charges photogenerated on the electrode surface give rise preferably to HO•, known to be powerful oxidant that causes the total inactivation of the microorganism (1 min of treatment) while engendering around 84% of mineralization of organic matter released from the cell damage following 120 min of treatment. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-11-01 2018-12-11T17:14:42Z 2018-12-11T17:14:42Z |
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/10.21577/0103-5053.20170053 Journal of the Brazilian Chemical Society, v. 28, n. 11, p. 2084-2093, 2017. 1678-4790 0103-5053 http://hdl.handle.net/11449/175178 10.21577/0103-5053.20170053 S0103-50532017001102084 2-s2.0-85029535028 S0103-50532017001102084.pdf |
url |
http://dx.doi.org/10.21577/0103-5053.20170053 http://hdl.handle.net/11449/175178 |
identifier_str_mv |
Journal of the Brazilian Chemical Society, v. 28, n. 11, p. 2084-2093, 2017. 1678-4790 0103-5053 10.21577/0103-5053.20170053 S0103-50532017001102084 2-s2.0-85029535028 S0103-50532017001102084.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of the Brazilian Chemical Society 0,357 0,357 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2084-2093 application/pdf |
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 |
|
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1808128824044421120 |