Abstract:
PROBLEM TO BE SOLVED: To obtain a nitrogen suppression ozone generator which promotes an ozone production reaction by adding a micro amount of nitrogen gas. SOLUTION: A photocatalytic substance having a band gap of 2.0-3.6 eV is prepared in a dielectric or an electrode of a discharge region, and ozone gas is generated by applying an AC voltage from a power source and injecting discharge electric power to the discharge region, supplying oxygen gas to the discharge region together with nitrogen gas which is supplied to the oxygen gas for promoting an ozone production reaction in the range of 10-500 ppm, dissociating the oxygen gas which passes through the discharge region into oxygen atoms by the interaction between discharge light having a light wavelength of at least 344-620 nm which is emitted by an electric discharge and the photocatalytic substance, and bonding the oxygen gas with the dissociated oxygen atoms. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To obtain an ozone generator which can adequately improve ozone generation efficiency and generates clean ozone gas. SOLUTION: The ozone generator includes a catalytic substance containing a photocatalytic substance with a band gap of 2.0-2.9 eV, and the catalytic substance is prepared as a dielectric through which discharge light permeates the dielectric of discharge region by making photocatalytic substance powder of 1-10% by volume ratio contained in the dielectric through which discharge light permeates. Ozone gas is generated by applying an AC voltage from a power source and injecting discharge electric power to the discharge region, supplying oxygen gas to the discharge region by a raw material gas supplying means, dissociating the oxygen gas which passes through the discharge region into oxygen atoms by the interaction between discharge light having a light wavelength of at least 428-620 nm which is emitted by an electric discharge and the catalytic substance, and bonding the oxygen gas with the dissociated oxygen atoms. COPYRIGHT: (C)2011,JPO&INPIT