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公开(公告)号：US11667550B2
公开(公告)日：2023-06-06
申请号：US17245640
申请日：2021-04-30
申请人： Paul K. Westerhoff , Francois Perreault , Sergio Garcia-Segura , Shahnawaz Sinha , Ana Barrios , Renato Martin Montenegro Ayo
发明人： Paul K. Westerhoff , Francois Perreault , Sergio Garcia-Segura , Shahnawaz Sinha , Ana Barrios , Renato Martin Montenegro Ayo
CPC分类号： C02F1/46109 , A45F3/18 , C02F1/325 , C02F1/4672 , A45F2003/003 , C02F2001/46142 , C02F2001/46171 , C02F2201/009 , C02F2303/04 , C02F2305/023 , C02F2305/10 , C02F2307/02
摘要： A water-disinfecting apparatus includes a vessel with a cathode, an insert with a photoanode, an ultraviolet light source configured to be positioned in the insert, and a power source. The cathode forms an electrically conductive layer on an inner surface of the vessel. The photoanode is configured to be positioned in the cathode. The power source is configured to be operably coupled to the cathode, the photoanode, and the light source.
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公开(公告)号：US12029826B2
公开(公告)日：2024-07-09
申请号：US17667283
申请日：2022-02-08
申请人： Paul K. Westerhoff , Zhe Zhao , Nora Shapiro
发明人： Paul K. Westerhoff , Zhe Zhao , Nora Shapiro
IPC分类号： A61L2/10 , C03C25/00 , C03C25/105 , C03C25/305 , C09D147/00 , F21V8/00 , G02B6/00
CPC分类号： A61L2/10 , C03C25/105 , C03C25/305 , C09D147/00 , G02B6/0006 , G02B6/001 , A61L2202/11
摘要： A coated optical fiber includes an optical fiber having a core and an outer surface, and a homogeneous polymer coating in contact with the outer surface of the optical fiber. The optical fiber and the homogeneous polymer coating are UV transparent, and a refractive index of the outer surface of the optical fiber or the homogeneous polymer coating is up to 15% less than a refractive index of the core. Coating the optical fiber includes coating an outer surface with a polymerizable material and polymerizing the polymerizerable material to yield the coated optical fiber having a homogeneous polymer coating. The optical fiber and the homogeneous polymer coating are UV transparent, and a refractive index of the outer surface of the optical fiber or the homogeneous polymer coating is up to 15% less than a refractive index of a core of the optical fiber.
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公开(公告)号：US20220074841A1
公开(公告)日：2022-03-10
申请号：US17447259
申请日：2021-09-09
申请人： Paul K. Westerhoff , Shahnawaz Sinha , Yuqiang Bi
发明人： Paul K. Westerhoff , Shahnawaz Sinha , Yuqiang Bi
摘要： Quantifying nanobubbles in solution includes combining an indicator with a fluid comprising nanobubbles to yield a first solution, bursting the nanobubbles in the first solution to yield a second solution, and assessing a difference between the first solution and the second solution to yield a concentration of the nanobubbles in the first solution, a concentration of reactive oxygen species in the first solution or the second solution, or both.
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公开(公告)号：US20210293741A1
公开(公告)日：2021-09-23
申请号：US17206935
申请日：2021-03-19
申请人： Paul K. Westerhoff , Sergio Garcia-Segura , Shahnawaz Sinha , Rishabh Bansal , Rafael Verduzco , Michael S. Wong
发明人： Paul K. Westerhoff , Sergio Garcia-Segura , Shahnawaz Sinha , Rishabh Bansal , Rafael Verduzco , Michael S. Wong
摘要： An electrode includes an electrically conductive substrate with a coating containing boron-doped diamond (BDD) nanoparticles. Fabricating the electrode can include dispersing BDD nanoparticles in a solvent to yield a suspension, coating a conductive substrate with the suspension, and drying the suspension to yield the electrode. In some cases, fabricating the electrode includes combining BDD nanoparticles with a polymeric resin precursor to yield a mixture including a metal oxide, coating a conductive substrate with the mixture to yield a coated substrate, and calcining the coated substrate to yield a metal oxide coating including BDD nanoparticles. In certain cases, fabricating the electrode includes combining powdered activated carbon with polymeric linkers to yield a polymeric precursor solution, combining BDD nanoparticles with the polymeric precursor solution to yield a mixture, coating a conductive substrate with the mixture to yield a coated substrate, and crosslinking the polymeric linkers to yield the electrode.
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15.发明申请公开(公告)号：US20210122667A1
公开(公告)日：2021-04-29
申请号：US17137790
申请日：2020-12-30
IPC分类号： C03C13/04 , C01B33/12 , C03C25/105 , C03C25/106 , G02B6/10 , F21V8/00
摘要： A coated optical fiber coupled to a light source for inactivating pathogens on surfaces or in water. The coated optical fiber includes a substantially UV-transparent core, particles optically coupled to the core, and a substantially UV-transparent polymer coating in contact with the particles. Coating the optical fiber includes optically coupling particles to a surface of an optical fiber core to yield a functionalized core, coating the functionalized core with a polymerizable material, and polymerizing the polymerizerable material to yield a substantially UV-transparent polymer coating on the functionalized core.
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公开(公告)号：US10793449B2
公开(公告)日：2020-10-06
申请号：US15499433
申请日：2017-04-27
IPC分类号： C25B1/04 , C25B9/00 , C25B1/10 , C02F1/467 , H01G9/20 , C02F1/32 , C02F3/32 , C02F3/00 , C02F103/06
摘要： A reactor for water splitting or water treatment includes a first electrode, a second electrode electrically coupled to the first electrode, and a proton exchange membrane separating the first electrode and the second electrode. The first electrode includes a first optical fiber coated with a photocatalytic material.
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公开(公告)号：US10787374B2
公开(公告)日：2020-09-29
申请号：US15971083
申请日：2018-05-04
IPC分类号： B01J20/20 , B01J20/32 , C02F1/28 , C02F1/52 , B01D61/14 , C02F103/00 , C02F103/06 , C02F103/08 , C02F101/12
摘要： Compositions for bromide removal include a two-dimensional material impregnated with silver. The silver may be impregnated in the two-dimensional material by contacting the two-dimensional material with silver ions in an aqueous solution, allowing the silver ions to adsorb on the two-dimensional material, and drying the two-dimensional material. Removing bromide from an aqueous composition including bromide may include contacting the aqueous composition with a two-dimensional material impregnated with silver, and allowing the bromide to react with the silver to yield silver bromide.
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公开(公告)号：US20190094118A1
公开(公告)日：2019-03-28
申请号：US16146160
申请日：2018-09-28
摘要： A microfluidic device includes a sample inlet for a fluid sample, a degassing chamber having a gas-permeable membrane and defining first and second portions separated by the gas permeable membrane, and a detection chamber. The sample inlet and the detection chamber are fluidly coupled to the first and second portions, respectively of the degassing chamber. The detection chamber is operably coupled to a light source and a detector. Assessing a concentration of chlorine gas in an aqueous sample includes providing an aqueous sample to a microfluidic device, separating gas from the aqueous sample in the microfluidic device, providing the gas to a detector, assessing the absorbance of the gas sample at a known absorption wavelength of chlorine, and based on the assessed absorbance of the gas sample at the known absorption wavelength of chlorine, assessing a concentration of chlorine gas in the aqueous sample.
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公开(公告)号：US20170313601A1
公开(公告)日：2017-11-02
申请号：US15499433
申请日：2017-04-27
IPC分类号： C02F1/467 , H01G9/20 , C02F1/32 , C02F1/72 , C02F103/06
CPC分类号： C02F1/467 , C02F1/32 , C02F3/005 , C02F3/325 , C02F2103/06 , C02F2201/3222 , C02F2201/46115 , C02F2305/023 , C02F2305/10 , H01G9/2031 , H01G9/2095 , Y02W10/37
摘要： A reactor for water splitting or water treatment includes a first electrode, a second electrode electrically coupled to the first electrode, and a proton exchange membrane separating the first electrode and the second electrode. The first electrode includes a first optical fiber coated with a photocatalytic material.
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公开(公告)号：US20240126008A1
公开(公告)日：2024-04-18
申请号：US18482265
申请日：2023-10-06
申请人： Paul K. Westerhoff , Hojung Rho
发明人： Paul K. Westerhoff , Hojung Rho
IPC分类号： G02B6/02 , B01D61/08 , C03C25/104
CPC分类号： G02B6/02 , B01D61/08 , C03C25/104
摘要： A composite material includes one or more side-emitting optical fibers arranged in a pattern defining openings bounded at least in part by the one or more side-emitting optical fibers. The one or more side-emitting optical fibers have a UV-C transparent coating, and at least one of the one or more side-emitting optical fibers is configured to be coupled to a light-emitting diode. A reverse osmosis filter includes a reverse osmosis membrane and the composite material coupled to the reverse osmosis membrane.
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