Photodecomposition of hydrogen peroxide in highly saline aqueous medium

The photodecomposition of hydrogen peroxide was performed in highly saline aqueous medium (60 g.L-1 of NaCl). The Fe3+/H2O2/NaCl/UV system was tested at temperatures from 20 to 50 o C, while the intervals of concentration of Fe3+ and H2O2 were 1 to 2.5 mM and 230 to 630 mM, respectively. It is known...

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Detalhes bibliográficos
Autores: Chiavone Filho, Osvaldo, Luna, Airton José de, Nascimento, Cláudio Augusto Oller do
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2006
País:Brasil
Recursos:Universidade Federal do Rio Grande do Norte (UFRN)
Repositorio:Repositório Institucional da UFRN
Idioma:inglés
OAI Identifier:oai:repositorio.ufrn.br:123456789/44916
Acesso em linha:https://repositorio.ufrn.br/handle/123456789/44916
https://doi.org/10.1590/S0104-66322006000300007
Access Level:acceso abierto
Palavra-chave:AOT
Photodecomposition
Hydrogen peroxide
Hydroxyl radical
Chloride
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spelling Photodecomposition of hydrogen peroxide in highly saline aqueous mediumAOTPhotodecompositionHydrogen peroxideHydroxyl radicalChlorideThe photodecomposition of hydrogen peroxide was performed in highly saline aqueous medium (60 g.L-1 of NaCl). The Fe3+/H2O2/NaCl/UV system was tested at temperatures from 20 to 50 o C, while the intervals of concentration of Fe3+ and H2O2 were 1 to 2.5 mM and 230 to 630 mM, respectively. It is known from the literature that chloride is an inhibitor of the oxidation of organic compound in aqueous medium, but this effect has not been observed to be expressive for hydrogen peroxide. Despite this result, experiments were conducted in presence of high concentration of salt (60 g.L-1), emulating the agrochemical process condition. The series of measurements has been evaluated and correlated. Thermal and photochemical dependencies were described satisfactorily by a simplified kinetic model. The apparent activation energy was estimated to be 27.6 kJ.mol-1Brazilian Society of Chemical Engineering2021-11-16T14:53:16Z2021-11-16T14:53:16Z2006-09info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLUNA, Airton José de; NASCIMENTO, Cláudio Oller Augusto do; CHIAVONE-FILHO, Osvaldo. Photodecomposition of hydrogen peroxide in highly saline aqueous medium. Brazilian Journal of Chemical Engineering (Impresso), Campinas, v. 23, n.03, p. 341-349, 2006. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322006000300007&lng=en&tlng=en. Acesso em: 16 jun. 2021. https://doi.org/10.1590/S0104-66322006000300007.0104-66321678-4383https://repositorio.ufrn.br/handle/123456789/44916https://doi.org/10.1590/S0104-66322006000300007ark:/41046/001300000zk5nAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNChiavone Filho, OsvaldoLuna, Airton José deNascimento, Cláudio Augusto Oller do2021-11-22T13:17:42Zoai:repositorio.ufrn.br:123456789/44916Repositório InstitucionalPUBhttp://repositorio.ufrn.br/oai/repositorio@bczm.ufrn.bropendoar:2021-11-22T13:17:42Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.none.fl_str_mv Photodecomposition of hydrogen peroxide in highly saline aqueous medium
title Photodecomposition of hydrogen peroxide in highly saline aqueous medium
spellingShingle Photodecomposition of hydrogen peroxide in highly saline aqueous medium
Chiavone Filho, Osvaldo
AOT
Photodecomposition
Hydrogen peroxide
Hydroxyl radical
Chloride
title_short Photodecomposition of hydrogen peroxide in highly saline aqueous medium
title_full Photodecomposition of hydrogen peroxide in highly saline aqueous medium
title_fullStr Photodecomposition of hydrogen peroxide in highly saline aqueous medium
title_full_unstemmed Photodecomposition of hydrogen peroxide in highly saline aqueous medium
title_sort Photodecomposition of hydrogen peroxide in highly saline aqueous medium
dc.creator.none.fl_str_mv Chiavone Filho, Osvaldo
Luna, Airton José de
Nascimento, Cláudio Augusto Oller do
author Chiavone Filho, Osvaldo
author_facet Chiavone Filho, Osvaldo
Luna, Airton José de
Nascimento, Cláudio Augusto Oller do
author_role author
author2 Luna, Airton José de
Nascimento, Cláudio Augusto Oller do
author2_role author
author
dc.subject.por.fl_str_mv AOT
Photodecomposition
Hydrogen peroxide
Hydroxyl radical
Chloride
topic AOT
Photodecomposition
Hydrogen peroxide
Hydroxyl radical
Chloride
description The photodecomposition of hydrogen peroxide was performed in highly saline aqueous medium (60 g.L-1 of NaCl). The Fe3+/H2O2/NaCl/UV system was tested at temperatures from 20 to 50 o C, while the intervals of concentration of Fe3+ and H2O2 were 1 to 2.5 mM and 230 to 630 mM, respectively. It is known from the literature that chloride is an inhibitor of the oxidation of organic compound in aqueous medium, but this effect has not been observed to be expressive for hydrogen peroxide. Despite this result, experiments were conducted in presence of high concentration of salt (60 g.L-1), emulating the agrochemical process condition. The series of measurements has been evaluated and correlated. Thermal and photochemical dependencies were described satisfactorily by a simplified kinetic model. The apparent activation energy was estimated to be 27.6 kJ.mol-1
publishDate 2006
dc.date.none.fl_str_mv 2006-09
2021-11-16T14:53:16Z
2021-11-16T14:53:16Z
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 LUNA, Airton José de; NASCIMENTO, Cláudio Oller Augusto do; CHIAVONE-FILHO, Osvaldo. Photodecomposition of hydrogen peroxide in highly saline aqueous medium. Brazilian Journal of Chemical Engineering (Impresso), Campinas, v. 23, n.03, p. 341-349, 2006. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322006000300007&lng=en&tlng=en. Acesso em: 16 jun. 2021. https://doi.org/10.1590/S0104-66322006000300007.
0104-6632
1678-4383
https://repositorio.ufrn.br/handle/123456789/44916
https://doi.org/10.1590/S0104-66322006000300007
dc.identifier.dark.fl_str_mv ark:/41046/001300000zk5n
identifier_str_mv LUNA, Airton José de; NASCIMENTO, Cláudio Oller Augusto do; CHIAVONE-FILHO, Osvaldo. Photodecomposition of hydrogen peroxide in highly saline aqueous medium. Brazilian Journal of Chemical Engineering (Impresso), Campinas, v. 23, n.03, p. 341-349, 2006. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322006000300007&lng=en&tlng=en. Acesso em: 16 jun. 2021. https://doi.org/10.1590/S0104-66322006000300007.
0104-6632
1678-4383
ark:/41046/001300000zk5n
url https://repositorio.ufrn.br/handle/123456789/44916
https://doi.org/10.1590/S0104-66322006000300007
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 3.0 Brazil
http://creativecommons.org/licenses/by/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 3.0 Brazil
http://creativecommons.org/licenses/by/3.0/br/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRN
instname:Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
instname_str Universidade Federal do Rio Grande do Norte (UFRN)
instacron_str UFRN
institution UFRN
reponame_str Repositório Institucional da UFRN
collection Repositório Institucional da UFRN
repository.name.fl_str_mv Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)
repository.mail.fl_str_mv repositorio@bczm.ufrn.br
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score 15.301603

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