Abstract: A display table for supporting produce includes an enclosure, a table top defining an upper surface of the enclosure, a blower, an ethylene scrubber and an outlet. The table top is open to the atmosphere and configured to support the produce, and includes perforations. The blower is positioned in communication with the enclosure to create an underpressure that draws a gas into the enclosure through the perforations. The ethylene scrubber is positioned in communication with the enclosure and in a flow path of the gas, the ethylene scrubber being configured to remove at least a portion of ethylene from at least a portion of the gas. The outlet is located downstream of the ethylene scrubber for returning the gas from the enclosure to the atmosphere.

Abstract: The present invention relates to a method for treating fluids, characterised in the steps of radiating the fluid with UV light, producing and dispersing gas bubbles in the fluid in the rays of the UV light, in order to increase the scattering of the UV light in the liquid. The invention also relates to a device for performing the method.

Abstract: A method for sorting carbon nanotubes (CNTs) is disclosed. In one embodiment, a method for sorting CNTs of the present disclosure comprises providing to a surface of a substrate, the surface modified with a trans isomer of photo-isomerization-reactive diazo compound, a dispersion containing a mixture of conducting CNTs and semiconducting CNTs; removing CNTs which are not associated with the modified surface from the surface; and irradiating the modified surface to detach the CNTs associated with the modified surface.

Abstract: A method for the ultraviolet (UV) treatment of carbon-containing low-k dielectric and associated apparatus enables process induced damage repair. The methods of the invention are particularly applicable in the context of damascene processing to recover lost low-k property of a dielectric damaged during processing, either pre-metallization, post-planarization, or both. UV treatments can include an exposure of the subject low-k dielectric to a constrained UV spectral profile and/or chemical silylating agent, or both.

Abstract: A photochemical reaction apparatus including a reactor and a light source situated so that light from the light source is directed through a portion of the reactor wall is disclosed. The apparatus is characterized by the portion of the reaction wall comprising a copolymer of a perfluoro (alkyl vinyl ether). The perfluoro (alkyl vinyl ether) is selected from the group consisting of CF30CF?CF2, C2F5OCF?CF2, C3F7OCF?F2, and mixture thereof. Also disclosed is a photochemical reaction process wherein light from a light source is directed through said reactor wall to interact with reactants in said reactor. A process for increasing the fluorine content of at least one compound selected from hydrocarbons and halohydrocarbons, comprising: (a) photochlorinating said at least one compound; and (b) reacting the halogenated hydrocarbon produced in (a) with HF.

Abstract: An air purifier with bactericidal and odor removal effect is disclosed. The air purifier comprises a fan module; UV light source; and light catalyst, wherein the fan module withdraws external air into the purifier and the UV light source and the light catalyst are provided at the rear section of the fan module so as to receive the external air withdrawing by the fan module, and the UV light source and the light catalyst are configured to form a passage; the radiation of UV light source onto the light catalyst causes the formation of free radicals in air which decompose bacteria, micro dust and suspension within the air, to clean air odor removal and air drying.

Abstract: An apparatus for sanitizing a sport ball includes a container that receives the sport ball and at least one germicidal light source coupled to the container. The at least one germicidal light source emits germicidal wavelength light onto the sport ball within the container during operation of the apparatus. Alternatively, the apparatus includes a germicidal light-transparent receptacle that receives the sport ball and a plurality of germicidal light sources coupled to the germicidal light-transparent receptacle. The plurality of germicidal light sources emit germicidal wavelength light, at least in part through the germicidal light-transparent receptacle, onto each location on the surface of the ball for at least a predetermined intensity-time.

Abstract: Methods for the production of photocatalytic materials and coated substrate materials are provided according to the invention. A process for forming a photocatalytic coating on a substrate is provided. The photocatalytic coating includes titanium oxide on a titanium substrate for example. The photocatalytic coated substrate may be used in a device for treating contaminated fluids including water, air and mixtures thereof.

Abstract: A portable water purification system and method of operation of the system is disclosed that may comprise a container defining a water purification chamber; a plurality of UV generating light sources distributed in the purification chamber of the container; and a portable power source electrically connected to the light sources, and adapted to convert kinetic energy to electrical energy to provide to the light sources. The portable power source may be adapted to be driven by human motive power to provide the kinetic energy. The purification system may comprise a filling opening to the container; and a filter intermediate the filling opening and the chamber adapted to remove turbidity from the water entering the water purification chamber through the filling opening. The portable power source may comprise a hand-cranked electrical generator.

Abstract: Systems and methods to reduce bioburden on at least a portion of a fluid transfer port include supplying a dose of radiation to the portion in optical communication with at least one source of radiation. In an illustrative example, a medical container, such as a vial or IV bag, receives a dose of ultraviolet (UV) energy substantially at a predetermined region of a fluid transfer site. In some examples, such a sanitization process may precede a fluid transfer operation in which a fluid is transferred into or out of the medical container by passing through the sanitized region. Such fluid transfers may be used in automated or semi-automated pharmaceutical processes, such as drug reconstitution. Various embodiments may further include one or more seal assemblies, each seal assembly having an aperture through which the radiation dose is supplied from the source to a controlled region on the fluid transfer port.

Abstract: The present invention relates to applications of TiO2-containing, macro-sized nanostructures in the fields including photocatalysis, information writing-erasing-rewriting, microfiltration, controlled drug release, and tire making. In one aspect, the present invention relates to a method of photocatalytically decomposing organic pollutants. In one embodiment, the method includes the steps of mixing a solution containing organic pollutants and a plurality of TiO2-containing, macro-sized nanostructures to form a mixture and exposing the mixture to UV irradiation to decompose the organic pollutants.

Abstract: A photocatalytic reactor is disclosed herein, which includes a rotatable light guide plate and a light source. The light guide plate is coated with a photocatalyst film on a surface thereof. A light beam emitted from the light source can be coupled into and propagate inside the light guide plate to activate the photocatalysis of the photocatalyst film. Additionally, the rotation of the light guide plate further expedites the photocatalysis so as to enhance the reaction efficiency of the photocatalytic reactor.

Abstract: An air purifier has an air flow cavity bounded by cavity walls and a source of ultraviolet light emitting ultraviolet light within the cavity. The cavity walls have an ultraviolet light reflective coating. A plurality of photocatalytic particles are associated with the reflective coating. The photocatalytic particles are of a type which leads to production of oxygen and hydroxyl free radicals when illuminated with ultraviolet light in the presence of water.

Abstract: The invention relates to a photochemical reactor (12). The invention further relates to a photochemical processing system. The photochemical reactor comprises a vessel (20) comprising the fluid (30), a light source (40) for generating UV-radiation (UV1) and emitting it towards the fluid, and a luminescent material (50) arranged between the light source and the fluid for converting at least part of the UV-radiation emitted by the light source to further UV-radiation (UV2) having an increased wavelength compared to the UV-radiation. The luminescent material is removably connected to the photochemical reactor and is separate from the light source. By having the luminescent material removably connected to the photochemical reactor, separate from the light source, the luminescent material may be exchanged with new luminescent material if the current luminescent material has degraded.

Abstract: An apparatus and method for improving the electrical conductivity of a thermoelectric material, particularly a material comprising polysilicon nanowires. The method comprises hydrogenation of the device to improve the electrical conductivity of the device with negligible change to the thermal conductivity. Hydrogenation of the thermoelectric device may be accomplished using several techniques, including UV-assisted hydrogenation in a vacuum chamber.

Abstract: A flat UV light source has a tight packing of UV light-emitting diodes (56) that are arranged in a matrix. These light-emitting diodes are cooled by cooling air flows (66) or by cooling water flows.

Abstract: A self-contained, high efficiency cellulose biomass processing plant includes sources of quantum-based wave energy to facilitate the dilute acid hydrolysis of hemi-cellulose and alpha-cellulose bond. The sources of quantum-based wave energy supply one or more of, and suitably a combination of ultrasonic waves, ultraviolet waves, magnetic waves and direct current to facilitate fracture of the intermolecular bonds. An integrated plant is also provided which combines the cellulose biomass processing plant with apparatus for converting high protein residue into a finished high grade protein product. Due to the high efficiency resulting from use of quantum-based wave energy, the plant uses less energy, and can be small and portable.

Abstract: A submersible pump with UV sterilization device includes a casing, at least one sterilization room and one water pump room provided in the casing, a first end cap and a second end cap separately fixed at the two ends of the casing, a front water inlet provided at the first end cap, a back water inlet connected to the water inlet of the sterilization room provided at the second end cap, and a reflection board provided at the internal wall of the sterilization room. A water pump is fixed in the water pump room, a water outlet is fixed above the impeller room of the water pump, the impeller room is connected to the water outlets of the sterilization room, a cold cathode UV sterilization device is provided in the sterilization room, the sterilization device is connected to the output end of an inverter fixed in the casing.

Abstract: A filter for use in an ultraviolet photocatalytic oxidation air purification system having a filter surface treatment that enhances removal of volatile silicon-containing compounds (VSCCs). The surface treatment may create an acidic site on the filter, increase the surface area of the filter, or facilitate preferential interaction between the surface and the VSCCs, thereby promoting the VSCCs to bond with the VSCC filter. Removal of the VSCCs prior to the VSCCs reaching the photocatalyst increases the useful life of the photocatalyst.

Abstract: A germicidal apparatus for sterilizing at least one object, including at least one ultraviolet (UV) emitting unit which emits UV light onto at least one object; one or more spraying units which spray at least one chemical onto at least one object, wherein the UV light and at least one chemical sterilize the at least one object. There are disclosed methods for sterilizing at least one object, including a method including emitting ultraviolet (UV) light onto the at least one object; and applying at least one chemical to the at least one object.

Abstract: A method of removing contaminates from sour water is provided. The method includes producing raw sour water within a syngas production system, and removing the contaminates from the raw sour water using a chemical reaction within a treatment unit to produce treated sour water. The treatment unit is in flow communication with the syngas production system.

Abstract: A germicidal lamp can selectively direct germicidal light emitted within an air transporting and/or conditioning system. The system can include a housing, an emitter electrode configured within the housing, and a collector electrode configured within the housing and located downstream from the emitter electrode. The system can further include a driver electrode that can be removed from the housing through a side portion of the housing. The driver electrode can be insulated with a dielectric material and/or a catalyst. A removable trailing electrode can be configured within the housing and located downstream from the collector electrode. A first voltage source can be electrically coupled to the emitter electrode and the collector electrode, and a second voltage source can be electrically coupled to the trailing electrode. The second voltage source can be independently and selectively controllable from the first voltage source.

Abstract: An apparatus for alternatively disinfecting an object surface and a liquid comprising a hollow handle base graspable in a human hand, an electrical power source contained within a hollow interior space of the handle base housing for supplying electrical power to an ultraviolet lamp, a lid including a lamp support bulkhead, and an ultraviolet lamp mounted to the lamp support bulkhead. A tubular cover shell is releasably attachable to the lamp support bulkhead. The cover shell has an upper wall which is opaque to ultraviolet radiation and a lower wall which has therein an aperture which is transmissive to ultraviolet radiation.

Abstract: An air cleaner comprising an air channel in the air cleaner; an air moving unit configured to create an airflow in the air channel; a photo-catalytic oxidation (PCO) element disposed in the airflow; and a Ultraviolet A (UV-A) Light Emitting Diode (LED) to illuminate the PCO element is described. The PCO element can be a substrate comprising: a first coating comprising a VOC decomposing catalyst; a second coating comprising an ozone decomposing catalyst; and a third coating comprising titanium dioxide.

Abstract: A water treatment system including a UV bulb, a moisture detector, and a control circuit responsive to the moisture detector to terminate power to the bulb when moisture is detected. The moisture detector includes a nonconductive substrate and a pair of conductors on the substrate. When moisture is not present, the detector is nonconductive. However, when moisture accumulates on the detector, the moisture provides a conductive path between the conductors so that the detector becomes conductive. When moisture is detected, the control circuit terminates power to the bulb and/or provides an appropriate indication to the system user.

Abstract: Apparatus for oxygenating an enclosed space as well as removing carbon dioxide from the enclosed space. The apparatus comprises a photolytic cell (16) having an anode compartment with a photo-active surface having the ability to convert water to oxygen; a cathode compartment having the ability to convert carbon dioxide and hydrogen to a solid or liquid medium; and a light source (20) for providing light photons (21) to said photolytic cell and activating the photo-reactive surface.

Abstract: A catalytic device comprises a mixed structure of photocatalyst and silica. The mixed structure may be comprised of alternating layers of photocatalyst and silica, a layer having a uniform mixture of photocatalyst particles and silica particles, or a layer having a graded mixture of photocatalyst particles and silica particles.

Abstract: An ultraviolet reactor for treating a fluid. The reactor includes a vessel having an inlet for receiving fluid and an outlet for discharging fluid. The reactor further includes an ultraviolet light source and baffle plates. The baffle plates include holes arranged in a predetermined pattern for providing plug flow in areas in the reactor near the ultraviolet light source.

Abstract: The present invention relates to a cooling system. More particularly, the present invention relates to a cooling system for removing dust from air being drawn for cooling heat generation components of an electronic product, for improving convenience in maintenance or repair of the electronic product.

Abstract: The invention relates to a light-pipe system for conducting/distributing light and air, which can also purify indoor air, particularly in a building, or the like. The light-pipe system includes a light-pipe for conducting light and having a clear top dome mounted at the top of the light-pipe to let in sunlight but keep out dust, rain and UV. An emitter fitted to the bottom of light-pipe improves the light distribution into the room, and a ventilation stack laid around the light-pipe coaxially/or non-coaxially, and a photocatalyst film (e.g. Nanometer TiO2) coated on the outer surface of the emitter for purifying indoor air under the illumination of light from light-pipe. The air and light are conducted separately along two different transport paths. The light-pipe system can provide illumination, ventilation and air purification simultaneously. The light source may be daylight, artificial light, light storage material or a mixture of them. Air can be moved naturally and/or is transported mechanically.

Abstract: Apparatus is provided, for sanitizing feet of persons entering a particular area, such as a residential area, having a platform for transmitting sanitizing ultraviolet light to feet of persons standing upon upper portions of the platform, a germicidal light source for directing sanitizing UV-C ultraviolet light through upper portions of the platform, a power supply for energizing the germicidal light source, a switching device coupled between the power supply and the germicidal light source for energizing the germicidal light source and wherein the switching device energizes the germicidal light source in response to the presence of the person positioned upon upper portions of the platform. The germicidal ultraviolet light source includes one or more elongated bulbs, or one or more elongated linear arrays of solid state devices and a central light reflective wall portion is positioned to enhance support of the upper portions of said platform.

Abstract: This invention relates to apparatus for maximising ozone generation from a UV bulb. The apparatus includes a UV bulb which emits UV light below 200 nm, peaking at 185 nm. Bulbs emitting UV light at 185 nm are well known to generate ozone but generally also emit UV light at 254 nm which is well known to deplete ozone. The concept of the present invention is to create an environment where air or oxygen carrying gas can be exposed to the 185 nm and 254 nm UV light outputs from a bulb in such a way that the 185 nm ozone generating effect is enhanced and 254 nm ozone depleting effect is reduced. The apparatus also includes a member which may either be transmissive to or non-transmissive to UV light at 254 nm and the environment in which the effect of the UV light at 185 nm is enhanced exists between the UV lamp and the member.

Abstract: A device for treatment of fluids, includes a treatment chamber having an inlet and an outlet for the fluid to be treated, elongated UV light generating elements arranged inside the treatment chamber, a photo-catalytic structure arranged in the treatment chamber. The photo-catalytic structure is a filter arranged in the flow of fluid through the treatment chamber such that the fluid flows through the filter. The filter is designed generally tubular and placed adjacent and surrounding the UV light generating elements for radiating the filter with UV light, thereby creating treatment radicals, and the filter is placed such that the whole flow of fluid is forced through the radiated filter.

Abstract: An apparatus and a method for purifying and heating air using photocatalytic oxidation. The apparatus includes a housing, a heater, and a photocatalytic oxidation unit disposed within the housing. The housing defines a flow path for air to move through the apparatus such that air from the environment is drawn into the apparatus and passes over the photocatalytic oxidation unit. A pollutant in the air from the environment adsorbs to a surface of the photocatalytic material coating the plates, and the surface of the photocatalytic material is exposed to ultraviolet light generated by the ultraviolet light source. The energy of the ultraviolet light activates the photocatalytic material, which then breaks down the pollutant leaving non-toxic components and purified air. The air then passes over the heater and back into the environment. A fan is also included to move air through the flow path.

Abstract: An apparatus and method for treating ballast water to achieve IMO standards for ballast water includes a reactor fabricated of copper nickel for receiving and discharging ballast water, a UV source for irradiating the water in the presence of copper nickel thereby to generate free radicals for biocidal and bactericidal effects on organisms and microbes entering the reactor with ballast water.

Abstract: Provided is a purifying apparatus, which includes ultraviolet lamps and an ozone lamp having different wavelengths from one another and disposed in tubes to remove bacteria, VOC, bad odors in water or air, and these tubes are arranged in a serial or parallel way. Folds are formed at inner ends of the spiral photocatalytic sheets which are in contact with the lamps and the respective lamps are inserted into to increase the contact area with air or water and the one with the lamp, thereby preventing the lamp from being damaged. The purifying apparatus includes: an outer case having an inlet and an outlet; a spiral photocatalytic sheet to be inserted into the outer case; a UV lamp to be inserted into the spiral photocatalytic sheet, wherein folds are disposed at an inner side of the spiral photocatalytic sheet where a space for inserting the UV lamp is formed.

Abstract: The present disclosure provides a system and method to dissociate water molecules into H2 and O2 and includes a reaction vessel having at least one radiolysis apparatus, at least one photolysis apparatus, at least one catalyst apparatus, and at least one electromagnetic fielding apparatus. The reaction vessel has a body, a first end and a second end defining an interior reaction chamber, an inlet for receiving water vapor and at least two outlets. A plurality of windings of a contiguous electrical conductor are wound in a first direction adjacent the first outlet and plurality of windings of a contiguous electrical conductor wound in a second direction adjacent the second outlet such that the first direction is opposite the second direction. When a current is applied to the conductor, an electromagnetic field is generated to migrate the disassociated H2 and O2 molecules toward the respective first outlet or second outlet.

Abstract: The present invention relates to a photocatalyst comprising a core part containing titanium dioxide, and a doped part formed on surfaces of said core part, containing a ruthenium-based dye and a platinum compound, a preparation method thereof, a photoreactor and a photolysis process. In accordance with the present invention, a photocatalyst having excellent light resistance and photosensitivity capable of removing volatile organic compounds even in poor ultraviolet light conditions, and a preparation method thereof is provided, and a photoreactor comprising said photocatalyst and an efficient photolysis process using the same are also provided.

Abstract: Disclosed herein are systems and methods for removing hydrogen peroxide from a liquid media. This is accomplished by adding an oxidizable metal to the photoreactive slurry. The oxidizable metal is then oxidized, which then causes the oxidized metal particles to bond to the particles of photoreactive slurry to create oxidized metal catalyst particles. Once bonded to the slurry particles, the metal remains in the decontamination system and its presence destabilizes and catalyzes the decomposition of the hydrogen peroxide in the contaminated media. Once destabilized, the hydrogen peroxide breaks down into water and oxygen particles, which are not detrimental to the operation of the system. The oxygen molecules may be vented from the system, while the water molecules simply mix with the liquid media flowing through the system. The photoreactive slurry and the oxidized metal are recovered and recycled so as not to have to be continuously replenished.

Abstract: Convenient mobile sterilization devices are described herein that, in certain embodiments, provide secure storage in a niche in a protective housing and one-button action to automatically deploy and activate the device for quick and powerful destruction of germs on a surface using one hand. Users can hold the UV-light device and move it across a target surface to sterilize or disinfect the surface. The device may be compact, easily deployed, provided with a durable cover for secure storage, and equipped with safety shut-off features to prevent unwanted uses.

Abstract: Disclosed are a method and apparatus with several embodiments that use low output UV energy to create hydroxyl radicals on photocatalytic semiconductor coated surfaces in order to produce hydroxyl radicals to structurally eradicate contaminants impacting those surfaces. Low wattage UVA black-light white and black-light blue plasma lamps are used to activate photocatalytic semiconductor coatings on solid and mesh surfaces constructed of fluropolymers (Teflon®), of aluminum, of stainless steel, and coatings on the outer lamp wall of the UVA lamp itself. The embodiments show that sufficient UVA energy is being transmitted through solid lamp wall, through the photocatalytic semiconductor coating on the outer lamp wall (from beneath), and through multiple layers of coated fluropolymer, aluminum, and stainless steel mesh to create hydroxyl radicals on the surfaces of downstream layers.

Abstract: An onsite chemistry air filtration system to remove gaseous contaminants from air is disclosed. The onsite chemistry air filtration system of the present invention comprises: a conventional particulate filtration section, a photochemical filtration section, a static gas phase filtration section and a catalytic filtration section. The conventional particulate filtration section captures solids and condensables. In the photochemical filtration section, UV lamps generate bio-destruction and surface photochemical activity on a semiconductor catalyst material, provide a radiation source to irradiate airborne contaminant molecules and to energize their states to promote reactions and generate airborne ozone and radicals. In the static gas phase filtration section, gas phase filtration media is used to capture contaminants, concentrate them in a relatively confined space and allow airborne generated chemistries to concentrate and react in-situ, thereby creating a regeneration effect on the media.

Abstract: Superior hydroxyls are provided which have effects on organic and inorganic compounds and/or pollutants over substantial periods of time and/or at substantial distances from where the superior hydroxyls are generated. Also provided is a hydroxyl generator, in which UV-lamps are positioned such that the coronas which they produce when emitting UV-radiation fill substantially all of the interior space of the hydroxyl generator. The coronas overlap each other by a maximum amount of between 5% and 25% of the radius of each corona.

Abstract: A water treatment system that performs a water purifying treatment by use of ultraviolet radiation, comprises a front stage ultraviolet radiation device for radiating ultraviolet light in a front stage process in a water purifying treatment process, a rear stage ultraviolet radiation device for radiating ultraviolet light in a rear stage process, and a controller for controlling these ultraviolet radiation devices.

Abstract: The present invention relates to an air filtration system and a method for making a photocatalytic oxidation substrate by powder coating a photocatalyst onto a metal substrate.

Abstract: A system for energy upconversion and/or down conversion and a system for producing a photostimulated reaction in a medium. These systems include 1) a nanoparticle configured, upon exposure to a first wavelength ?1 of radiation, to generate a second wavelength ?2 of radiation having a higher energy than the first wavelength ?1 and 2) a metallic structure disposed in relation to the nanoparticle. A physical characteristic of the metallic structure is set to a value where a surface plasmon resonance in the metallic structure resonates at a frequency which provides a spectral overlap with either the first wavelength ?1 or the second wavelength ?2, or with both ?1 and ?2. The system for producing a photostimulated reaction in a medium includes a receptor disposed in the medium in proximity to the nanoparticle which, upon activation by the second wavelength ?2, generates the photostimulated reaction.

Abstract: The present invention relates to a sterilization device for a dental appliance, which is primarily assembled from an upper cover, a holding body and a base, wherein a load supporting portion is formed at one end of the holding body, and the load supporting portion is fitted with a bacteria removal member. Moreover, a power supply device is disposed between the holding body and the base. Accordingly, an object to be sterilized is placed in the load supporting portion, and an electrical connection is effected with the bacteria removal member by means of the power supply device, thereby causing the bacteria removal member to release ozone (O3) or ultra violet rays to carry out sterilization of the object to be sterilized and achieve bacteria removal effectiveness.

Abstract: Disclosed are compositions, methods, and devices that generally relate to silanes and silicides and to uses thereof for hydrogen generation. Methods and devices for generating hydrogen for fuel cells and for other applications such as fuel or a supplementary fuel for internal combustion engines and reducing agents to improve catalyst efficiency are also disclosed.

Abstract: The present invention relates to applications of TiO2-containing, macro-sized nanostructures in the fields including photocatalysis, information writing-erasing-rewriting, microfiltration, controlled drug release, and tire making. In one aspect, the present invention relates to a method of photocatalytically decomposing organic pollutants. In one embodiment, the method includes the steps of mixing a solution containing organic pollutants and a plurality of TiO2-containing, macro-sized nanostructures to form a mixture and exposing the mixture to UV irradiation to decompose the organic pollutants.

Abstract: The invention concerns an installation wherein is performed a crosslinking operation for a coating such as an ink or a varnish through ultraviolet radiation or electronic beam, in the presence of a gas mixture with controlled oxygen residual content. The installation comprises a chamber including one or more UV lamps or a source of accelerated electrons, required for performing the crosslinking operation, and is characterized in that it comprises an input device adjacent the chamber comprising at least the following three components, viewed successively by the product moving to be treated: a labyrinth system, means for injecting an inert gas forming a gas knife and a channel.