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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 21, Number 2
BKCSDE 21(2)
February 20, 2000

Title	Detection of OH(A2∑+) and O(1D) Emission Spectrum Generated in a Pulsed Corona Plasma
Author	Dong Nam Shin, Shul Woung Park, Jae Won Hahn
Keywords
Abstract	We have constructed a pulsed corona discharge system for the removal of air pollutants, such as NOx, SOx and volatile organic compounds (VOCs), in which an emission spectrometry is employed to characterize the generation of excited species by the corona discharge process. Special attention has been paid to overcome noise problems from high voltage power supply, which hampers the measurement of emission light, by using separate ground and trigger modules for emission spectrometry. The emission spectra between dry and humid gas mixtures have shown remarkable differences in the region of 305-309 nm wavelength, corresponding with OH(A2∑+ ) emission to its ground state. This result implies that the OH emission spectra generated by the corona discharge can be used to monitor the chemical reaction of OH radical responsible for the removal of air pollutants.
Page	228 - 232
Full Text	PDF

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