Microwave-assisted rapid decomposition of persulfate

被引：0

作者：

Costa, C. ^{[1
,2
]}

Santos, V.H.S. ^{[2
]}

Araujo, P.H.H. ^{[1
]}

Sayer, C. ^{[1
]}

Santos, A.F. ^{[2
,3
]}

Fortuny, M. ^{[2
,3
]}

机构：

[1] Departamento de Engenharia Química, Universidade Federal de Santa Catarina, Campus Universitário, Florianópolis, SC 88040-900, Brazil

[2] Laboratório de Sistemas Coloidais e Dispersões, Instituto de Tecnologia e Pesquisa, Av. Murilo Dantas 300, Aracaju, SE 49032-490, Brazil

[3] Programa de Engenharia de Processos, Universidade Tiradentes, Aracaju, SE 49032-490, Brazil

来源：

European Polymer Journal | 2009年 / 45卷 / 07期

关键词：

Microwave irradiation has been a promising alternative to conduct several chemical reactions. In this work the microwave effects in potassium persulfate decomposition rate; under controlled conditions of temperature and microwave power; were evaluated. Higher decomposition rate constants were obtained in microwave irradiated reactions in comparison with conventional heated ones. To study the effect of high power microwave irradiation; a pulsed irradiation strategy was developed; in which the samples were repeatedly heated within short intervals of time at high power levels (500 or 1400 W). A great decomposition percentage was achieved in shorter irradiation times; showing the kinetic advantages of microwave-assisted reactions. However; it was found no differences in the reaction yields; even when high power levels were involved; proving that microwave enhancements may arise only from the ability to quickly provide a large amount of energy to the reaction medium. © 2009 Elsevier Ltd. All rights reserved;

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摘要：

Journal article (JA)

引用

页码：2011 / 2016

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