Abstract:
PROBLEM TO BE SOLVED: To provide a plasma generating device capable of more stably producing radicals, a method for producing radicals, a washing and cleaning device using the plasma generating device, and a compact electrical appliance.SOLUTION: A plasma generating device 1 comprises: a first electrode 12 disposed in a gas housing part 5; and a second electrode 13 disposed so that at least a portion of a side opposite to the first electrode 12 is brought into contact with a liquid 17 inside a liquid housing part 4. Plasma is generated in a gas region inside the liquid 17 in the liquid housing part 4 by generating discharge between the first electrode 12 and the second electrode 13, and a hydroxyl radical is produced from water contained in the liquid 17 and oxygen contained in the gas.
Abstract:
PROBLEM TO BE SOLVED: To obtain an ozone generator which can adequately improves ozone generation efficiency and generates a clean ozone gas. SOLUTION: The ozone generator comprises a photocatalytic material which is provided on a dielectric or an electrode in the discharge region with a band gap of 2.0-2.9 eV, wherein when an alternating-current voltage is applied from a power supply to produce a discharge in the discharge region, and the oxygen gas is supplied from the raw material gas supply means to the discharge region, then interaction of the discharge light having light wavelength in a range of 428-620 nm caused by the discharge with the photocatalytic material dissociates the oxygen gas passing through the discharge region into oxygen atoms and the oxygen gas and the oxygen atoms dissociated are subjected to a bonding process to generate ozone gas. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To obtain an ozone generator system which can correctly improve ozone generating efficiency, and generate a clean ozone gas. SOLUTION: The ozone generator system comprises a catalytic material including a photocatalytic material with a band gap of 2.0 eV to 2.9 eV, the catalytic material is provided on the wall face of a dielectric or an electrode in the discharge region, the contact surface area between the catalytic material and discharge light is increased by 1.5 times or more to the area of the dielectric or the electrode, an AC voltage is applied from a power source to inject discharge power into the discharge region, an oxygen gas is supplied from a raw material gas supply means to the discharge region, by interaction between the discharge light having at least a light wavelength in a range of 428 nm to 620 nm irradiated from discharge and the catalytic material, an oxygen gas passing through the discharge region is dissociated into oxygen atoms, and also, the oxygen gas and the dissociated oxygen atoms are subjected to a bonding process to generate an ozone gas. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus and a method which provide ozonized water to one or more process tools. SOLUTION: An ozonated-water generator 1000 receives deionized water for supplying the deionized water 20, supplies an oxygen gas 30 to the ozonated-water generator, and produces ozonated deionized water DIO3. Then, the ozonated deionized water DIO3 is supplied to one or more semiconductor process tools 40. The used or excess deionized water or ozonated deionized water DIO3 is wasted through a waste liquid line 50. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an ozone generator which has adequately raised ozone generation efficiency. SOLUTION: The ozone generator for generating ozone by applying a specified process to gaseous oxygen by discharge has a first raw material gas supply means for supplying the gaseous oxygen as a first raw material gas, and a second raw material gas supply means for supplying an oxide compound gas as a second raw material gas, wherein by excited light excited and generated by discharge in the presence of the gaseous oxygen and the oxide compound gas, the oxide compound gas is dissociated or the dissociation of the gaseous oxygen is accelerated by excitation of oxide compound gas to generate ozone. COPYRIGHT: (C)2005,JPO&NCIPI