Removal of Cd2+ ion from diluted aqueous solutions by electrodeposition on reticulated vitreous carbon electrodes
Autor(a) principal: | |
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Data de Publicação: | 2002 |
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=S0103-50532002000400010 |
Resumo: | The electrodeposition of Cd2+ ion was investigated in pH 4.8 sulfuric-sulfate solutions in the presence of dissolved O2. In potentiostatic conditions, using reticulated vitreous carbon (RVC) electrodes of 30, 60 and 100 pores per inch (ppi), high removal efficiency values were achieved in the potential range from --0.90 to --1.10 V for solutions containing 5 and 10 mg L-1 of Cd2+ ion. In this potential range, Cd electrodeposition is a mass transport controlled reaction and the concentration of the metallic ion decays exponentially with time following a pseudo-first order kinetics. For the 30 ppi RVC, the current efficiency and removal efficiency values found were, respectively, 45 % and 96 % for a solution containing 10 mg L-1 of Cd2+ ion after 30 minutes electrolysis at --0.90 V while 33 % and 99% were found for the 60 ppi RVC. The concentration decay of Cd2+ ion in the solution was monitored after each experiment by anodic stripping voltammetry at a hanging mercury drop electrode. |
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Journal of the Brazilian Chemical Society (Online) |
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Removal of Cd2+ ion from diluted aqueous solutions by electrodeposition on reticulated vitreous carbon electrodescadmium removalreticulated vitreous carbonelectrodepositionThe electrodeposition of Cd2+ ion was investigated in pH 4.8 sulfuric-sulfate solutions in the presence of dissolved O2. In potentiostatic conditions, using reticulated vitreous carbon (RVC) electrodes of 30, 60 and 100 pores per inch (ppi), high removal efficiency values were achieved in the potential range from --0.90 to --1.10 V for solutions containing 5 and 10 mg L-1 of Cd2+ ion. In this potential range, Cd electrodeposition is a mass transport controlled reaction and the concentration of the metallic ion decays exponentially with time following a pseudo-first order kinetics. For the 30 ppi RVC, the current efficiency and removal efficiency values found were, respectively, 45 % and 96 % for a solution containing 10 mg L-1 of Cd2+ ion after 30 minutes electrolysis at --0.90 V while 33 % and 99% were found for the 60 ppi RVC. The concentration decay of Cd2+ ion in the solution was monitored after each experiment by anodic stripping voltammetry at a hanging mercury drop electrode.Sociedade Brasileira de Química2002-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000400010Journal of the Brazilian Chemical Society v.13 n.4 2002reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532002000400010info:eu-repo/semantics/openAccessTramontina,JucelâniaAzambuja,Denise S.Piatnicki,Clarisse M. S.eng2002-09-06T00:00:00Zoai:scielo:S0103-50532002000400010Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2002-09-06T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Removal of Cd2+ ion from diluted aqueous solutions by electrodeposition on reticulated vitreous carbon electrodes |
title |
Removal of Cd2+ ion from diluted aqueous solutions by electrodeposition on reticulated vitreous carbon electrodes |
spellingShingle |
Removal of Cd2+ ion from diluted aqueous solutions by electrodeposition on reticulated vitreous carbon electrodes Tramontina,Jucelânia cadmium removal reticulated vitreous carbon electrodeposition |
title_short |
Removal of Cd2+ ion from diluted aqueous solutions by electrodeposition on reticulated vitreous carbon electrodes |
title_full |
Removal of Cd2+ ion from diluted aqueous solutions by electrodeposition on reticulated vitreous carbon electrodes |
title_fullStr |
Removal of Cd2+ ion from diluted aqueous solutions by electrodeposition on reticulated vitreous carbon electrodes |
title_full_unstemmed |
Removal of Cd2+ ion from diluted aqueous solutions by electrodeposition on reticulated vitreous carbon electrodes |
title_sort |
Removal of Cd2+ ion from diluted aqueous solutions by electrodeposition on reticulated vitreous carbon electrodes |
author |
Tramontina,Jucelânia |
author_facet |
Tramontina,Jucelânia Azambuja,Denise S. Piatnicki,Clarisse M. S. |
author_role |
author |
author2 |
Azambuja,Denise S. Piatnicki,Clarisse M. S. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Tramontina,Jucelânia Azambuja,Denise S. Piatnicki,Clarisse M. S. |
dc.subject.por.fl_str_mv |
cadmium removal reticulated vitreous carbon electrodeposition |
topic |
cadmium removal reticulated vitreous carbon electrodeposition |
description |
The electrodeposition of Cd2+ ion was investigated in pH 4.8 sulfuric-sulfate solutions in the presence of dissolved O2. In potentiostatic conditions, using reticulated vitreous carbon (RVC) electrodes of 30, 60 and 100 pores per inch (ppi), high removal efficiency values were achieved in the potential range from --0.90 to --1.10 V for solutions containing 5 and 10 mg L-1 of Cd2+ ion. In this potential range, Cd electrodeposition is a mass transport controlled reaction and the concentration of the metallic ion decays exponentially with time following a pseudo-first order kinetics. For the 30 ppi RVC, the current efficiency and removal efficiency values found were, respectively, 45 % and 96 % for a solution containing 10 mg L-1 of Cd2+ ion after 30 minutes electrolysis at --0.90 V while 33 % and 99% were found for the 60 ppi RVC. The concentration decay of Cd2+ ion in the solution was monitored after each experiment by anodic stripping voltammetry at a hanging mercury drop electrode. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-08-01 |
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=S0103-50532002000400010 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000400010 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532002000400010 |
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.13 n.4 2002 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_ |
1750318164916305920 |