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Quantification of Hydroxyl Radicals Produced in Aqueous Phase Pulsed Electrical Discharge Reactors

2006; American Chemical Society; Volume: 45; Issue: 17 Linguagem: Inglês

10.1021/ie0601504

1520-5045

Mayank Sahni, Bruce R. Locke,

Electrohydrodynamics and Fluid Dynamics

High voltage pulsed electrical discharges in water are of interest for a number of applications, for example, in chemistry, water treatment, electrical transmission, and bioengineering, because of the formation of highly reactive molecular and radical species (including the hydroxyl radical). While the existence of hydroxyl radicals in these systems has been demonstrated by emission spectroscopy, accurate quantification of the rates of formation of this species is needed to develop insight into the means by which electrical discharge can promote useful chemical reactions. This paper focuses on quantification of hydroxyl radicals using chemical probes (dimethyl sulfoxide (DMSO) and disodium salt of terephthalic acid (NaTA)).