Effect of operational conditions and kinetic study in the electrochemical degradation of methylene blue dye onto a Ti/Ru0.3Ti0.7O2 anode
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/14918 |
Resumo: | Textile and food effluents commonly contain in their composition dye compounds harmful to human health and the environment and in this context advanced oxidation technologies such as electrochemical processes have emerged as an alternative treatment for refractory compounds present in these wastewaters. Thus, this work investigated the degradation of the basic methylene blue dye at room temperature (25 ºC) via electrocatalytic treatment with commercial Ti/Ru0.3Ti0.7O2 anode (30% RuO2 and 70% of TiO2). Experimental studies at pH = 6.8 were performed to evaluate the effect of the electrolysis potential, nature and concentration of the electrolytic support and initial concentration of dye on the efficiency and kinetics of degradation. The results showed degradations greater than 90% in 60 min of treatment by indirect electrolysis using 0.01 mol L-1 NaCl and 0.01 mol L-1 Na2SO4 as electrolytic support under 5.0 V potential at concentrations between 5 mg L-1 and 25 mg L-1. Electrodegradation kinetics were typically first order. In general, the degradation efficiency values found confirmed the promising character of the application of dimensionally stable anodes in the depollution of colored wastewater. |
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Effect of operational conditions and kinetic study in the electrochemical degradation of methylene blue dye onto a Ti/Ru0.3Ti0.7O2 anodeEfecto de las condiciones de operación y el estudio cinético en la degradación electroquímica del colorante azul de metileno utilizando ánodo Ti/Ru0.3Ti0.7O2Efeito das condições operacionais e estudo cinético na degradação eletroquímica do corante azul de metileno sobre anodo de Ti/Ru0.3Ti0.7O2EletrooxidaçãoAzul de metilenoAnodo Ti/Ru0.3Ti0.7O2Cinética.ElectrooxidationMethylene BlueTi/Ru0.3Ti0.7O2 anodeKinetic.Electro-oxidaciónAzul de metilenoÁnodo Ti/Ru0.3Ti0.7O2Cinética.Textile and food effluents commonly contain in their composition dye compounds harmful to human health and the environment and in this context advanced oxidation technologies such as electrochemical processes have emerged as an alternative treatment for refractory compounds present in these wastewaters. Thus, this work investigated the degradation of the basic methylene blue dye at room temperature (25 ºC) via electrocatalytic treatment with commercial Ti/Ru0.3Ti0.7O2 anode (30% RuO2 and 70% of TiO2). Experimental studies at pH = 6.8 were performed to evaluate the effect of the electrolysis potential, nature and concentration of the electrolytic support and initial concentration of dye on the efficiency and kinetics of degradation. The results showed degradations greater than 90% in 60 min of treatment by indirect electrolysis using 0.01 mol L-1 NaCl and 0.01 mol L-1 Na2SO4 as electrolytic support under 5.0 V potential at concentrations between 5 mg L-1 and 25 mg L-1. Electrodegradation kinetics were typically first order. In general, the degradation efficiency values found confirmed the promising character of the application of dimensionally stable anodes in the depollution of colored wastewater.Los efluentes textiles y alimentarios tienen en su composición compuestos colorantes nocivos para la salud humana y el medio ambiente y en este contexto han surgido tecnologías avanzadas de oxidación mediante procesos electroquímicos como tratamiento alternativo para los compuestos refractarios presentes en estas aguas residuales. Así, este trabajo investigó la degradación del colorante básico azul de metileno a temperatura ambiente (25 ºC) mediante tratamiento electrocatalítico con ánodo comercial Ti/Ru0.3Ti0.7O2 (30% RuO2 y 70% TiO2). Se realizaron estudios experimentales a pH = 6.8 para evaluar el efecto del potencial de electrólisis, la naturaleza y concentración del soporte electrolítico y la concentración inicial del colorante sobre la eficiencia y la cinética de degradación del azul de metileno. Los resultados mostraron degradaciones mayores al 90% en 60 min de tratamiento por electrólisis indirecta utilizando NaCl 0.01 mol L-1 y Na2SO4 0.01 mol L-1 como soporte electrolítico en el potencial de 5.0 V para concentraciones entre 5 mg L-1 y 25 mg L-1. La cinética de electro-oxidación fue típicamente de primer orden. En general, los valores de eficiencia de degradación encontrados confirmaron el carácter prometedor de la aplicación de ánodos dimensionalmente estables en la descontaminación de aguas residuales coloreadas.Efluentes têxteis e alimentícios apresentam comumente em sua composição compostos corantes danosos à saúde humana e ao meio ambiente e neste contexto tecnologias de oxidação avançada como os processos eletroquímicos têm despontado como alternativa de tratamento de compostos refratários presentes nestas águas residuárias. Assim, este trabalho investigou a degradação do corante básico azul de metileno a temperatura ambiente (25ºC) via tratamento eletrocatalítico com anodo comercial de Ti/Ru0.3Ti0.7O2 (30% de RuO2 e 70% de TiO2). Os estudos experimentais a pH = 6,8 foram executados para a avaliação do efeito do potencial de eletrólise, natureza e concentração do suporte eletrolítico e concentração inicial de corante sobre a eficiência e cinética de degradação do corante. Os resultados mostraram degradações superiores a 90% em 60 min de tratamento por eletrólise indireta usando 0,01 mol L-1 NaCl e 0,01 mol L-1 Na2SO4 como suporte eletrolítico sob potencial de 5,0 V para concentrações entre 5 mg L-1 e 25 mg L-1. A cinética de eletrodegradação foi tipicamente de primeira ordem. Em geral, os valores de eficiência de degradação encontrados ratificaram o caráter promissor da aplicação de anodos dimensionalmente estáveis na despoluição de águas residuárias coloridas.Research, Society and Development2021-05-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1491810.33448/rsd-v10i5.14918Research, Society and Development; Vol. 10 No. 5; e35510514918Research, Society and Development; Vol. 10 Núm. 5; e35510514918Research, Society and Development; v. 10 n. 5; e355105149182525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/14918/13392Copyright (c) 2021 Tobias de Oliveira Souza; Jackson Anderson Sena Ribeiro; Francisco Everardo Pereira Viana; Jéssica Rocha de Lima; Janaina de Vasconcelos Cruz; Edson da Silva Almeida; Rinaldo dos Santos Araújohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessSouza, Tobias de Oliveira Ribeiro, Jackson Anderson SenaViana, Francisco Everardo PereiraLima, Jéssica Rocha deCruz, Janaina de VasconcelosAlmeida, Edson da SilvaAraújo, Rinaldo dos Santos2021-05-17T18:20:49Zoai:ojs.pkp.sfu.ca:article/14918Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:35:52.723126Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Effect of operational conditions and kinetic study in the electrochemical degradation of methylene blue dye onto a Ti/Ru0.3Ti0.7O2 anode Efecto de las condiciones de operación y el estudio cinético en la degradación electroquímica del colorante azul de metileno utilizando ánodo Ti/Ru0.3Ti0.7O2 Efeito das condições operacionais e estudo cinético na degradação eletroquímica do corante azul de metileno sobre anodo de Ti/Ru0.3Ti0.7O2 |
title |
Effect of operational conditions and kinetic study in the electrochemical degradation of methylene blue dye onto a Ti/Ru0.3Ti0.7O2 anode |
spellingShingle |
Effect of operational conditions and kinetic study in the electrochemical degradation of methylene blue dye onto a Ti/Ru0.3Ti0.7O2 anode Souza, Tobias de Oliveira Eletrooxidação Azul de metileno Anodo Ti/Ru0.3Ti0.7O2 Cinética. Electrooxidation Methylene Blue Ti/Ru0.3Ti0.7O2 anode Kinetic. Electro-oxidación Azul de metileno Ánodo Ti/Ru0.3Ti0.7O2 Cinética. |
title_short |
Effect of operational conditions and kinetic study in the electrochemical degradation of methylene blue dye onto a Ti/Ru0.3Ti0.7O2 anode |
title_full |
Effect of operational conditions and kinetic study in the electrochemical degradation of methylene blue dye onto a Ti/Ru0.3Ti0.7O2 anode |
title_fullStr |
Effect of operational conditions and kinetic study in the electrochemical degradation of methylene blue dye onto a Ti/Ru0.3Ti0.7O2 anode |
title_full_unstemmed |
Effect of operational conditions and kinetic study in the electrochemical degradation of methylene blue dye onto a Ti/Ru0.3Ti0.7O2 anode |
title_sort |
Effect of operational conditions and kinetic study in the electrochemical degradation of methylene blue dye onto a Ti/Ru0.3Ti0.7O2 anode |
author |
Souza, Tobias de Oliveira |
author_facet |
Souza, Tobias de Oliveira Ribeiro, Jackson Anderson Sena Viana, Francisco Everardo Pereira Lima, Jéssica Rocha de Cruz, Janaina de Vasconcelos Almeida, Edson da Silva Araújo, Rinaldo dos Santos |
author_role |
author |
author2 |
Ribeiro, Jackson Anderson Sena Viana, Francisco Everardo Pereira Lima, Jéssica Rocha de Cruz, Janaina de Vasconcelos Almeida, Edson da Silva Araújo, Rinaldo dos Santos |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Souza, Tobias de Oliveira Ribeiro, Jackson Anderson Sena Viana, Francisco Everardo Pereira Lima, Jéssica Rocha de Cruz, Janaina de Vasconcelos Almeida, Edson da Silva Araújo, Rinaldo dos Santos |
dc.subject.por.fl_str_mv |
Eletrooxidação Azul de metileno Anodo Ti/Ru0.3Ti0.7O2 Cinética. Electrooxidation Methylene Blue Ti/Ru0.3Ti0.7O2 anode Kinetic. Electro-oxidación Azul de metileno Ánodo Ti/Ru0.3Ti0.7O2 Cinética. |
topic |
Eletrooxidação Azul de metileno Anodo Ti/Ru0.3Ti0.7O2 Cinética. Electrooxidation Methylene Blue Ti/Ru0.3Ti0.7O2 anode Kinetic. Electro-oxidación Azul de metileno Ánodo Ti/Ru0.3Ti0.7O2 Cinética. |
description |
Textile and food effluents commonly contain in their composition dye compounds harmful to human health and the environment and in this context advanced oxidation technologies such as electrochemical processes have emerged as an alternative treatment for refractory compounds present in these wastewaters. Thus, this work investigated the degradation of the basic methylene blue dye at room temperature (25 ºC) via electrocatalytic treatment with commercial Ti/Ru0.3Ti0.7O2 anode (30% RuO2 and 70% of TiO2). Experimental studies at pH = 6.8 were performed to evaluate the effect of the electrolysis potential, nature and concentration of the electrolytic support and initial concentration of dye on the efficiency and kinetics of degradation. The results showed degradations greater than 90% in 60 min of treatment by indirect electrolysis using 0.01 mol L-1 NaCl and 0.01 mol L-1 Na2SO4 as electrolytic support under 5.0 V potential at concentrations between 5 mg L-1 and 25 mg L-1. Electrodegradation kinetics were typically first order. In general, the degradation efficiency values found confirmed the promising character of the application of dimensionally stable anodes in the depollution of colored wastewater. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-05-07 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/14918 10.33448/rsd-v10i5.14918 |
url |
https://rsdjournal.org/index.php/rsd/article/view/14918 |
identifier_str_mv |
10.33448/rsd-v10i5.14918 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/14918/13392 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 10 No. 5; e35510514918 Research, Society and Development; Vol. 10 Núm. 5; e35510514918 Research, Society and Development; v. 10 n. 5; e35510514918 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
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1797052676163239936 |