Catalytic decomposition of potassium monopersulfate: influence of variables

Detalhes bibliográficos
Autor(a) principal: Rivas, Javier
Data de Publicação: 2009
Outros Autores: Gimeno, Olga, Carbajo, Maria, Carvalhos, Maria Teresa Borralho
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/20.500.12207/575
Resumo: Potassium monopersulfate has been decomposed in aqueous solution in the presence of Co(II). The effect of the main operating variables has been assessed. Minimum variations in pH exert a considerable influence on the process kinetics. Thus, when no pH adjustment is considered, the actual effect of variables like initial monopersulfate and/or catalyst concentration may be hindered. As expected, temperature enhances the monopersulfate decomposition rate by following the Arrhenius law. The activation energy in the proximity of 85 kJ/mol has been obtained. Amongst the different solids tested in the monopersulfate decomposition, only the perovskite LaTi0.15Cu0.85O3 has shown a significant catalytic activity.
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spelling Catalytic decomposition of potassium monopersulfate: influence of variablesMonopersulfateOxoneSulfate radicalsWater treatmentIndexação ScopusPotassium monopersulfate has been decomposed in aqueous solution in the presence of Co(II). The effect of the main operating variables has been assessed. Minimum variations in pH exert a considerable influence on the process kinetics. Thus, when no pH adjustment is considered, the actual effect of variables like initial monopersulfate and/or catalyst concentration may be hindered. As expected, temperature enhances the monopersulfate decomposition rate by following the Arrhenius law. The activation energy in the proximity of 85 kJ/mol has been obtained. Amongst the different solids tested in the monopersulfate decomposition, only the perovskite LaTi0.15Cu0.85O3 has shown a significant catalytic activity.2013-11-15T11:37:29Z2013-10-22T00:00:00Z2009-01-01T00:00:00Z2009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/20.500.12207/575engRivas, JavierGimeno, OlgaCarbajo, MariaCarvalhos, Maria Teresa Borralhoinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-06-23T07:46:28Zoai:repositorio.ipbeja.pt:20.500.12207/575Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T14:58:16.231110Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Catalytic decomposition of potassium monopersulfate: influence of variables
title Catalytic decomposition of potassium monopersulfate: influence of variables
spellingShingle Catalytic decomposition of potassium monopersulfate: influence of variables
Rivas, Javier
Monopersulfate
Oxone
Sulfate radicals
Water treatment
Indexação Scopus
title_short Catalytic decomposition of potassium monopersulfate: influence of variables
title_full Catalytic decomposition of potassium monopersulfate: influence of variables
title_fullStr Catalytic decomposition of potassium monopersulfate: influence of variables
title_full_unstemmed Catalytic decomposition of potassium monopersulfate: influence of variables
title_sort Catalytic decomposition of potassium monopersulfate: influence of variables
author Rivas, Javier
author_facet Rivas, Javier
Gimeno, Olga
Carbajo, Maria
Carvalhos, Maria Teresa Borralho
author_role author
author2 Gimeno, Olga
Carbajo, Maria
Carvalhos, Maria Teresa Borralho
author2_role author
author
author
dc.contributor.author.fl_str_mv Rivas, Javier
Gimeno, Olga
Carbajo, Maria
Carvalhos, Maria Teresa Borralho
dc.subject.por.fl_str_mv Monopersulfate
Oxone
Sulfate radicals
Water treatment
Indexação Scopus
topic Monopersulfate
Oxone
Sulfate radicals
Water treatment
Indexação Scopus
description Potassium monopersulfate has been decomposed in aqueous solution in the presence of Co(II). The effect of the main operating variables has been assessed. Minimum variations in pH exert a considerable influence on the process kinetics. Thus, when no pH adjustment is considered, the actual effect of variables like initial monopersulfate and/or catalyst concentration may be hindered. As expected, temperature enhances the monopersulfate decomposition rate by following the Arrhenius law. The activation energy in the proximity of 85 kJ/mol has been obtained. Amongst the different solids tested in the monopersulfate decomposition, only the perovskite LaTi0.15Cu0.85O3 has shown a significant catalytic activity.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01T00:00:00Z
2009-01-01T00:00:00Z
2013-11-15T11:37:29Z
2013-10-22T00:00:00Z
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/20.500.12207/575
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dc.language.iso.fl_str_mv eng
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repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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