Experimental Study Of Toluene Decomposition
By Combination Of Barrier Discharge Plasma
And UV Light
Author(s)
P. Robert, K. J. Sung, A. Chul, Y. Y. Soon & V. Demidyuk
Abstract
The combination of dielectric barrier discharge plasma (DBD) and ultraviolet
irradiation (UV) on the decomposition of toluene was studied.
The decomposition rate of toluene by combination of DBD and UV, as well
as reaction products were studied in a 0.5 m3 stainless steel closed chamber. The
synergetic effect was found in toluene decomposition by combination of DBD
and UV. This parameter increases sharply in comparison to the decomposition
rate of toluene by both DBD and UV separately.
Ion cluster concentration was also increased whereas ozone accumulation
concentration was dramatically decreased.
An obtained phenomenon was discussed due to the difference of oxidation
rates between ozone and hydroxyl radicals which are produced by the
decomposition of ozone by UV light.
Keywords: plasma, toluene decomposition, UV light, ozone, ion cluster.
1 Introduction
Plasma air treatment is a subject of many investigations to use it for indoor air
pollution control [1-4]. The main advantage of it is a decomposition of gaseous
air pollutants at room temperature. The decomposition rate of air pollutants is
mainly depended on a discharge voltage. The higher discharge voltage the higher
decomposition rate.
At the same time a decomposition rate of contaminants by plasma treatment
accompanied to the formation of minor amount of harmful by-products such as
Keywords
plasma, toluene decomposition, UV light, ozone, ion cluster.
Related Book
Other papers in this volume
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