| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210748090 | Visible light | 20 |
| 20100176067 | Photocatalytic reactor and process for photocatalysis - A coil-shaped reactor and process are provided to degrade or remove contaminants from water. | 07-15-2010 |
| 20110147317 | Catalytic Compositions, Composition Production Methods, and Aqueous Solution Treatment Methods - Composition production methods are provided that can include providing PdO nanoparticles on a nitrogen-doped titanium oxide surface to form a catalytic mixture. Catalytic compositions and/or bactericides are provided that can include a substrate supporting Ti, O, N, and Pd. Water purification methods are provided that can include exposing an aqueous solution to a composition comprising at least a substrate supporting Ti, O, N, and Pd. Photocatalytic methods are provided that can include: providing a composition comprising one or both of Ti and Pd; exposing the composition to visible radiation to activate the composition; and in the substantial absence of the visible radiation, contacting the composition with an aqueous solution to purify the aqueous solution. Embodiments of the disclosure provide visible light photocatalysts that can demonstrate faster photocatalytic disinfection rates on | 06-23-2011 |
| 20110210080 | Process and System for Removal of Organics in Liquids - The invention concerns a process for removal of organics in liquids, especially dilute, toxic organics in water, wherein the liquid is contacted with microcapsules containing oxidizing agents, in combination with a photo-catalytic membrane. The invention is also related to a system for removal of organics in liquids. | 09-01-2011 |
| 20120031852 | GRAPHENE BASED ELECTRODES FOR ELECTROCHEMICAL REACTIONS, AND ELECTROOXIDATION PROCESS FOR THE REMOVAL OF CONTAMINANTS FROM LIQUIDS USING SAID ELECTRODES - An electrode is described completely made of graphenes or containing high amounts of these compounds in mixture with nanostructured or non-nanostructured carbon-based materials. An electrooxidation process for the removal of contaminants from liquids, and a reactor for performing the process, based on the use of said electrodes, are also described. | 02-09-2012 |
| 20120067828 | PHOTOCATALYST AND METHOD FOR PRODUCTION - The present invention relates generally to methods for producing modified titanium dioxide based photocatalysts via a sol-gel process. The present invention also relates to photocatalysts produced according to the methods of the invention and uses of the photocatalysts for the degradation of contaminants in samples. | 03-22-2012 |
| 20120111801 | Near-Field Photocatalyst Including Zinc Oxide Nanowire - Disclosed is a near-field photocatalyst using a ZnO (ZnO) nanowire. The photocatalyst is advantageous in that low-priced zinc is used instead of titanium, conventionally used as a photocatalyst to reduce expenses, and that it is possible to obtain overvoltage which is sufficient to generate hydrogen using an optical near field formed around an end of a ZnO nanowire without the application of additional external voltage, thus the use of a costly electrode, such as platinum, is avoided and a process is simplified. | 05-10-2012 |
| 20120234771 | SOLAR ENCLOSURE FOR WATER REUSE - A system and method for treating wastewater using concentrated solar energy are described herein. The system includes a lens that is positioned either on or adjacent, or forms part of a façade of a building. A fluid passageway, through which the wastewater is circulated, is positioned either within or adjacent the lens. The lens is configured to direct solar energy onto the wastewater to treat the wastewater. | 09-20-2012 |
| 20120267321 | METHODS OF MAKING METAL-OXIDES AND USES THEREOF FOR WATER TREATMENT AND ENERGY APPLICATIONS - The disclosure provides relates to compositions and methods for water treatment. It also addresses a method for synthesizing TiO | 10-25-2012 |
| 20120279927 | SOLAR WATER PASTEURIZER - In accordance with the present invention, there are provided solar water pasteurizers that are portable, efficient, inexpensive and easy to use. In its simplest form, the solar pasteurizer includes a transparent container such as a bag or envelope that contains at least one energy converting structure and has sufficient insulation to enable heating water to a temperature of at least 65° C. (and preferably to a temperature of at least 70° C.) for a time sufficient to achieve pasteurization (at 65-70° C., a period of only about 6 minutes is required for pasteurization). Invention solar pasteurizers are particularly useful for pasteurizing water. In additional embodiments, invention solar pasteurizers include additional features, such as, for example, a water pasteurization indicator, and a receptacle for retaining same within the invention container. In accordance with another embodiment of the invention, there are provided methods for pasteurizing water employing solar pasteurizers described herein, as well as kits suitable to convert any transparent water tight container into a solar water pasteurizer. | 11-08-2012 |
| 20120318749 | SYSTEMS AND METHODS FOR PERFORMING THE BACTERIAL DISINFECTION OF A FLUID USING POINT RADIATION SOURCES - A system for disinfecting a fluid, including: a flow cell including one or more inlet ports and one or more outlet ports, wherein the flow cell is configured to communicate a fluid containing a biological contaminant from the one or more inlet ports to the one or more outlet portions through an interior portion thereof; and one or more point radiation sources disposed about the flow cell, wherein the one or more point radiation sources are operable for delivering radiation to the biological contaminant; wherein an interior surface of the flow cell is operable for reflecting the radiation delivered to the biological contaminant by the one or more point radiation sources; and wherein the interior surface of the flow cell is operable for reflecting the radiation delivered to the biological contaminant by the one or more point radiation sources such that a radiation intensity is uniform throughout the interior portion of the flow cell. In one exemplary embodiment, the flow cell is an integrating sphere. Optionally, the system also includes a photocatalyzing material disposed on at least a portion of the interior surface of the flow cell. | 12-20-2012 |
| 20130248459 | CUVETTE APPARATUS AND METHOD - Blood or other fluid can be treated with UV or other light, such as using an apparatus that can include a cuvette. The cuvette can include an elongated tube configured to permit passage of light of a desired wavelength into the tube, which can include a fluid inlet at a first end and a fluid outlet at a longitudinally opposing second end. A turbulator within the tube can include a helical baffle segment configured to induce mixing and rotation of fluid flow about a longitudinal axis of the tube. The method can include passing a fluid, from a fluid inlet at a first end of an elongated tube to a fluid outlet at a longitudinally opposing second end of the elongated tube. Mixing and rotational flow of the fluid can be induced within the tube about a longitudinal axis of the tube and light of a desired wavelength can be permitted into the tube. | 09-26-2013 |
| 20130319954 | SEPARATION OF COLLOIDAL SUSPENSIONS USING LASER OPTICAL PRESSURE FLUIDIC DEVICES - A method of particle separation, wherein a collimated light source operable to generate a collimated light source beam is provided. The collimated light source beam includes a beam cross-section. A body is provided, wherein the body defines a wall and a first channel in a first plane. The first channel includes a first channel cross-section, the first channel being oriented to receive the collimated light source beam such that the beam cross-section completely overlaps the channel cross-section. The collimated light source beam is transmitted through the channel. A fluid sample is transmitted through the channel, fluid sample including a plurality of particles of a same type. All of the particles of the plurality of particles are separated axially along the collimated light source beam. All of the particles of the plurality of particles are retained against the wall in the collimated light source beam. | 12-05-2013 |
| 20130334145 | BISMUTH OXYHALIDE COMPOUNDS USEFUL AS PHOTOCATALYSTS - Mixed chloride-bromide bismuth oxyhalide compounds, with the molar ratio chloride:bromide being equal to or greater than 1:1, in the form of microspheres exhibiting flower-like surface morphology, are disclosed. Processes for preparing the compounds, formulations of the compounds and a method for purifying water using said compounds are also disclosed. | 12-19-2013 |
| 20140054240 | PHOTOINHIBITION OF MICROBIAL NITRIFICATION IN POTABLE WATER - A method for providing a dose of visible light in covered drinking water storage facilities to control nitrification. In one embodiment, the method includes irradiating the water with a dose of visible light sufficient to inhibit microbial nitrification of the water. In one embodiment, the dose of visible light has a wavelength from approximately 400 Hz to approximately 700 Hz. In another embodiment, the dose of visible light has a wavelength from approximately 550 Hz to approximately 700 Hz. In a further embodiment, the dose of visible light has a wavelength from approximately 380 Hz to approximately 430 Hz. | 02-27-2014 |
| 20140131286 | LARGE-SCALE ELECTRICITY-LESS DISINFECTION OF FLUENT WATER - A system for disinfecting a water sample includes a pipe having an inlet for engaging a source of the water sample, a storage reservoir connected to an outlet of the pipe for holding the water sample, an array of photovoltaic cells coupled to the pipe for converting solar radiation into a current, and an array of light emitting diodes coupled to the pipe and powered by the current, wherein the array of light emitting diodes emits a germicidal wavelength of radiation. A method for disinfecting a fluent water sample includes generating a current using an array of photovoltaic cells, using the current to power an array of light emitting diodes, wherein the array of light emitting diodes emits a germicidal wavelength of radiation, and exposing the fluent water sample to the radiation while transporting the fluent water sample from a source to a storage reservoir. | 05-15-2014 |
| 20140183141 | Photocatalytic Composition for Water Purification - The present invention refers to lightweight and settable photocatalytic compositions and solid composites; methods of preparing the compositions and solid composites; and their use in water purification. The compositions are comprised of photocatalysts such as titanium dioxide (TiO | 07-03-2014 |
| 20140346124 | REACTOR USABLE FOR DECONTAMINATION OF FLUIDS AND METHOD OF USE - The invention relates to a method for the decontamination of contaminated liquid, as well as a reactor for implementing a decontamination method. The method comprises a step of mixing the contaminated liquid under stirring with at least one persulphate ion with the exception of ammonium persulphate, and at least iron, an iron atom or an iron ion in its ferrous or ferric form at a concentration between 50 μM and 600 μM, preferably between 100 μM and 400 μM, a second step in which the mixture obtained is subjected for a sufficient time to at least one UV/visible irradiation having a narrow wavelength spectrum comprised between 153 nm and 560 nm. | 11-27-2014 |
| 20160102001 | KIT FOR WASTEWATER TREATMENT, AND MANUFACTURING METHOD FOR AND USE OF PHOTOCATALYST - The present invention relates to a kit for water treatment, comprising: a photocatalyst including at least one of SnFe | 04-14-2016 |
| 20160167991 | PHOTOCATALYSTS BASED ON BISMUTH OXYHALIDE, PROCESS FOR THEIR PREPARATION AND USES THEREOF | 06-16-2016 |
| 20170232427 | DOPED GRAPHITIC CARBON NITRIDES, METHODS OF MAKING AND USES OF THE SAME | 08-17-2017 |
