Electrochemical degradation of dimethyl phthalate ester on a DSA® 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=S0103-50532014000300012 |
Resumo: | The electrochemical degradation of dimethyl phthalate (DMP) using a one-compartment filter press flow cell and a commercial dimensionally stable anode (DSA®) is presented. The best electrolysis conditions were determined by the analysis of the influence of the nature and concentration of the support electrolyte, pH, current density and temperature. The abatement of DMP concentration and total organic carbon (TOC) removal were superior in the presence of NaCl, as well as the apparent first order kinetic constants. Using constant ionic strength at 0.15 mol dm-3 by adding Na2SO4, DMP concentration decreases faster at relative low NaCl concentrations while the TOC removal after 1 h of electrolysis increases with NaCl concentration. The DMP removal was very similar for all the current densities investigated at acidic solutions. When electric energy saving is considered, since the electrochemical system was under mass transport conditions, the best operational option is to use low current density values. |
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Electrochemical degradation of dimethyl phthalate ester on a DSA® electrodeendocrine disruptordimethyl phthalateindirect oxidationelectrooxidationmass-transportThe electrochemical degradation of dimethyl phthalate (DMP) using a one-compartment filter press flow cell and a commercial dimensionally stable anode (DSA®) is presented. The best electrolysis conditions were determined by the analysis of the influence of the nature and concentration of the support electrolyte, pH, current density and temperature. The abatement of DMP concentration and total organic carbon (TOC) removal were superior in the presence of NaCl, as well as the apparent first order kinetic constants. Using constant ionic strength at 0.15 mol dm-3 by adding Na2SO4, DMP concentration decreases faster at relative low NaCl concentrations while the TOC removal after 1 h of electrolysis increases with NaCl concentration. The DMP removal was very similar for all the current densities investigated at acidic solutions. When electric energy saving is considered, since the electrochemical system was under mass transport conditions, the best operational option is to use low current density values.Sociedade Brasileira de Química2014-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000300012Journal of the Brazilian Chemical Society v.25 n.3 2014reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20140007info:eu-repo/semantics/openAccessSouza,Fernanda L.Aquino,José M.Miwa,Douglas W.Rodrigo,Manuel A.Motheo,Artur J.eng2014-03-19T00:00:00Zoai:scielo:S0103-50532014000300012Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2014-03-19T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode |
title |
Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode |
spellingShingle |
Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode Souza,Fernanda L. endocrine disruptor dimethyl phthalate indirect oxidation electrooxidation mass-transport |
title_short |
Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode |
title_full |
Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode |
title_fullStr |
Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode |
title_full_unstemmed |
Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode |
title_sort |
Electrochemical degradation of dimethyl phthalate ester on a DSA® electrode |
author |
Souza,Fernanda L. |
author_facet |
Souza,Fernanda L. Aquino,José M. Miwa,Douglas W. Rodrigo,Manuel A. Motheo,Artur J. |
author_role |
author |
author2 |
Aquino,José M. Miwa,Douglas W. Rodrigo,Manuel A. Motheo,Artur J. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Souza,Fernanda L. Aquino,José M. Miwa,Douglas W. Rodrigo,Manuel A. Motheo,Artur J. |
dc.subject.por.fl_str_mv |
endocrine disruptor dimethyl phthalate indirect oxidation electrooxidation mass-transport |
topic |
endocrine disruptor dimethyl phthalate indirect oxidation electrooxidation mass-transport |
description |
The electrochemical degradation of dimethyl phthalate (DMP) using a one-compartment filter press flow cell and a commercial dimensionally stable anode (DSA®) is presented. The best electrolysis conditions were determined by the analysis of the influence of the nature and concentration of the support electrolyte, pH, current density and temperature. The abatement of DMP concentration and total organic carbon (TOC) removal were superior in the presence of NaCl, as well as the apparent first order kinetic constants. Using constant ionic strength at 0.15 mol dm-3 by adding Na2SO4, DMP concentration decreases faster at relative low NaCl concentrations while the TOC removal after 1 h of electrolysis increases with NaCl concentration. The DMP removal was very similar for all the current densities investigated at acidic solutions. When electric energy saving is considered, since the electrochemical system was under mass transport conditions, the best operational option is to use low current density values. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-03-01 |
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=S0103-50532014000300012 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014000300012 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/0103-5053.20140007 |
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.3 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_ |
1750318175748096000 |