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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/1550

Título: Catalytic decomposition of potassium monopersulfate: influence of variables
Autor: Borralho, Maria Teresa
Gimeno, Olga
Rivas, Javier
Carbajo, Maria
Palavras-chave: Monopersulfate
Oxone
Sulfate radicals
Water treatment
Issue Date: Sep-2009
Citação: World Academy of Science, Engineering and Technology, ISSN 2010-376x, n.º57 (Setembro 2009), p.223-226.
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.
Arbitragem científica: yes
URI: http://comum.rcaap.pt/handle/123456789/1550
Versão do Editor: http://www.waset.org/journals/waset/v57/v57-40.pdf
Appears in Collections:RDIPB - D-ENG - Artigos em Revistas com Peer Review

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