Degradation of acetophenone in dilute aqueous solution has been studied usi
ng pulsed corona discharges in water. Higher conversions of acetophenone we
re obtained with the addition oxygen or ozone than with the addition of nit
rogen and without the addition of any gas. Intermediates of acetophenone de
gradation, as determined by gas chromatography-mass spectroscopies (GC-MS),
were phenethyl alcohol, toluene, and 2-acetylphenol. In addition, the degr
adation reaction pathways of acetophenone in water are discussed.