期刊
PURE AND APPLIED CHEMISTRY
卷 78, 期 8, 页码 1559-1570出版社
INT UNION PURE APPLIED CHEMISTRY
DOI: 10.1351/pac200678081559
关键词
ozone; aqueous ozone; reaction mechanism; aqueous ozone decomposition; kinetic models
This paper provides a detailed account of recent developments in the mechanistic interpretation of aqueous ozone decomposition. Experimental complications with collecting reliable kinetic information for this system are illustrated via a few examples. Classical and comprehensive data treatment methods are compared, and an advanced kinetic model is presented on the basis of simultaneous evaluation of about 60 kinetic traces recorded at 260, 430, and 600 nm. These are the wavelengths of the absorbance maxima of O-3, O-3(-), and CO3-, respectively. The model is used to explore specific features of the initiation sequence, the role of reactive intermediates, and the carbonate ion inhibition. It is also demonstrated how a complex kinetic model can be validated by studying the system under specific experimental conditions.
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