Degradation of dipyrone by the electro-Fenton process in an electrochemical flow reactor with a modified gas diffusion electrode
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000900018 |
Resumo: | The increasing occurrence of antibiotics and their metabolites in surface and ground waters is causing a significant impact on the environment and needing of developing novel treatments for the complete removal of such contaminants. This paper presents the study of the electrogeneration of hydrogen peroxide (H2O2) in acidic medium and the degradation of the analgesic dipyrone in an electrochemical flow reactor using a gas diffusion electrode (GDE) modified with 5.0% cobalt (II) phthalocyanine (CoPc) and pressurized with O2. The highest yield of H2O2 (133 mg L-1) was achieved after 90 min of electrolysis at an applied potential of -2.1 V (vs. Pt//Ag/AgCl/KCl s) and the best results for degradation of dipyrone were obtained under electro-Fenton conditions, where the total organic carbon (TOC) was reduced 62.8% after 90 min of reaction and 49.1 kW h of energy was consumed per kg of dipyrone degraded. |
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Degradation of dipyrone by the electro-Fenton process in an electrochemical flow reactor with a modified gas diffusion electrodegas diffuson electrodeelectrochemical reactordipyroneFenton processThe increasing occurrence of antibiotics and their metabolites in surface and ground waters is causing a significant impact on the environment and needing of developing novel treatments for the complete removal of such contaminants. This paper presents the study of the electrogeneration of hydrogen peroxide (H2O2) in acidic medium and the degradation of the analgesic dipyrone in an electrochemical flow reactor using a gas diffusion electrode (GDE) modified with 5.0% cobalt (II) phthalocyanine (CoPc) and pressurized with O2. The highest yield of H2O2 (133 mg L-1) was achieved after 90 min of electrolysis at an applied potential of -2.1 V (vs. Pt//Ag/AgCl/KCl s) and the best results for degradation of dipyrone were obtained under electro-Fenton conditions, where the total organic carbon (TOC) was reduced 62.8% after 90 min of reaction and 49.1 kW h of energy was consumed per kg of dipyrone degraded.Sociedade Brasileira de Química2014-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000900018Journal of the Brazilian Chemical Society v.25 n.9 2014reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20140160info:eu-repo/semantics/openAccessBarros,Willyam R. P.Borges,Michelle P.Reis,Rafael M.Rocha,Robson S.Bertazzoli,RodneiLanza,Marcos R. V.eng2014-09-30T00:00:00Zoai:scielo:S0103-50532014000900018Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2014-09-30T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Degradation of dipyrone by the electro-Fenton process in an electrochemical flow reactor with a modified gas diffusion electrode |
title |
Degradation of dipyrone by the electro-Fenton process in an electrochemical flow reactor with a modified gas diffusion electrode |
spellingShingle |
Degradation of dipyrone by the electro-Fenton process in an electrochemical flow reactor with a modified gas diffusion electrode Barros,Willyam R. P. gas diffuson electrode electrochemical reactor dipyrone Fenton process |
title_short |
Degradation of dipyrone by the electro-Fenton process in an electrochemical flow reactor with a modified gas diffusion electrode |
title_full |
Degradation of dipyrone by the electro-Fenton process in an electrochemical flow reactor with a modified gas diffusion electrode |
title_fullStr |
Degradation of dipyrone by the electro-Fenton process in an electrochemical flow reactor with a modified gas diffusion electrode |
title_full_unstemmed |
Degradation of dipyrone by the electro-Fenton process in an electrochemical flow reactor with a modified gas diffusion electrode |
title_sort |
Degradation of dipyrone by the electro-Fenton process in an electrochemical flow reactor with a modified gas diffusion electrode |
author |
Barros,Willyam R. P. |
author_facet |
Barros,Willyam R. P. Borges,Michelle P. Reis,Rafael M. Rocha,Robson S. Bertazzoli,Rodnei Lanza,Marcos R. V. |
author_role |
author |
author2 |
Borges,Michelle P. Reis,Rafael M. Rocha,Robson S. Bertazzoli,Rodnei Lanza,Marcos R. V. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Barros,Willyam R. P. Borges,Michelle P. Reis,Rafael M. Rocha,Robson S. Bertazzoli,Rodnei Lanza,Marcos R. V. |
dc.subject.por.fl_str_mv |
gas diffuson electrode electrochemical reactor dipyrone Fenton process |
topic |
gas diffuson electrode electrochemical reactor dipyrone Fenton process |
description |
The increasing occurrence of antibiotics and their metabolites in surface and ground waters is causing a significant impact on the environment and needing of developing novel treatments for the complete removal of such contaminants. This paper presents the study of the electrogeneration of hydrogen peroxide (H2O2) in acidic medium and the degradation of the analgesic dipyrone in an electrochemical flow reactor using a gas diffusion electrode (GDE) modified with 5.0% cobalt (II) phthalocyanine (CoPc) and pressurized with O2. The highest yield of H2O2 (133 mg L-1) was achieved after 90 min of electrolysis at an applied potential of -2.1 V (vs. Pt//Ag/AgCl/KCl s) and the best results for degradation of dipyrone were obtained under electro-Fenton conditions, where the total organic carbon (TOC) was reduced 62.8% after 90 min of reaction and 49.1 kW h of energy was consumed per kg of dipyrone degraded. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000900018 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000900018 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/0103-5053.20140160 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.25 n.9 2014 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318176231489536 |