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1.发明申请公开(公告)号：US20250058285A1
公开(公告)日：2025-02-20
申请号：US18451389
申请日：2023-08-17
Inventor： Umair BAIG , Abdul WAHEED
IPC: B01D69/14 , B01D17/04 , B01D65/02 , B01D67/00 , B01D69/02 , B01D71/34 , B01D71/48 , B01D71/62 , C02F1/32 , C02F1/44 , C02F1/72
Abstract: A filtration membrane including a first layer comprising a polyester terephthalate nonwoven fabric, a second layer comprising a polyvinylidene fluoride matrix doped with a polyvinylpyrrolidone and titanium dioxide nanoparticles, and a third layer comprising a polypyrrole polymer. A method of making the membrane is also described. The membrane of the present disclosure is self-cleaning under visible light irradiation conditions.
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公开(公告)号：US20190031535A1
公开(公告)日：2019-01-31
申请号：US16150990
申请日：2018-10-03
Inventor： Mohammad Ashraf GONDAL , Mohamed A. DASTAGEER , Amjad B. KHALIL , Rashid Gulam SIDDIQUE , Umair BAIG
CPC classification number: C02F1/32 , C02F1/281 , C02F1/283 , C02F1/285 , C02F1/42 , C02F1/722 , C02F1/725 , C02F1/78 , C02F2201/006 , C02F2201/3222 , C02F2209/02 , C02F2209/03 , C02F2303/04 , C02F2305/08 , C02F2305/10 , Y02W10/37
Abstract: The present disclosure relates to a method of disinfecting a fluid comprising at least one live microbial organism. The method includes contacting the fluid comprising the at least one microbial organism with an effective amount of a photo-catalyst while exposing the fluid and the photo-catalyst to light from at least one light source with a wavelength of about 300-550 nm to reduce the number of the at least one live microbial organism to a predetermined level. The photo-catalyst comprises tungsten trioxide nanoparticles doped with palladium nanoparticles, and the palladium nanoparticles are present in an amount of about 0.1-5% of the total weight of the tungsten trioxide nanoparticles and the palladium nanoparticles.
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Patent Agency Ranking
公开(公告)号：US20240400741A1
公开(公告)日：2024-12-05
申请号：US18327240
申请日：2023-06-01
Inventor： Umair BAIG , Abdul WAHEED
Abstract: A ceramic membrane includes an alumina (Al2O3) layer; and a polyamide nanocomposite layer at least partially covering a surface of the alumina layer. The polyamide nanocomposite layer contains polyamide-functionalized silicon carbide (SiC) nanoparticles having an average particle size of 0.1 to 1 micrometer (μm), an amine-functionalized SiC moiety, an acyl aryl moiety, and a piperazine moiety. The amine-functionalized SiC moiety contains a SiC core and an amine functionalized silicon dioxide (SiO2) shell covering the SiC core. The amine-functionalized SiC moiety is covalently bonded to the piperazine moiety via the acyl aryl moiety; and the amine functionalized SiO2 shell contains at least one amino group containing structural unit that is covalently bonded to the SiO2 shell.
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公开(公告)号：US20240299886A1
公开(公告)日：2024-09-12
申请号：US18179791
申请日：2023-03-07
Inventor： Umair BAIG , Abdul WAHEED
CPC classification number: B01D69/108 , B01D71/025 , B01D71/62 , C02F1/285 , C02F1/288 , B01D2257/7027 , C02F2101/32 , C02F2103/007
Abstract: A method of separating an oil and water mixture including contacting the oil and water mixture with a membrane, where only the water in the oil and water mixture passes through the membrane. The membrane includes an alumina support and polypyrrole. A layer of the polypyrrole is hydrogen bonded to an outer layer of the alumina support, where particles of the polypyrrole are in the form of globules having a longest dimension of 100 to 300 nm.
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公开(公告)号：US20240416287A1
公开(公告)日：2024-12-19
申请号：US18333663
申请日：2023-06-13
Inventor： Abdul WAHEED , Umair BAIG , Shehzada Muhammad Sajid JILLANI
Abstract: A filtration membrane including a first layer having a triamine-functionalized polysilicate mesoporous material, a second layer including a polysulfone; and a third layer including a polyester terephthalate is described. An orthosilicate group of the triamine-functionalized polysilicate mesoporous material is bonded to a silicon atom of a silicon-containing triamine to form a triamine-functionalized polysilicate backbone, wherein the silicon-containing triamine and one or more tetramines are covalently crosslinked with terephthaloyl chloride to form a polyamide, and wherein the triamine-functionalized polysilicate mesoporous material has a hierarchical structure of MCM-41. The membrane is adapted for use selected from the use group consisting of oil and water separation, water treatment, desalination, and pharmaceutical filtration.
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公开(公告)号：US20240375063A1
公开(公告)日：2024-11-14
申请号：US18315663
申请日：2023-05-11
Inventor： Shehzada Muhammad Sajid JILLANI , Umair BAIG , Abdul WAHEED
Abstract: A filtration membrane including a first layer having a triamine-functionalized copper oxide polysilicate mesoporous material, a second layer including a polysulfone, and a third layer including a polyester terephthalate. The triamine-functionalized copper oxide polysilicate mesoporous material includes a copper oxide polysilicate backbone and a silicon atom of a silicon-containing triamine bonded to a silicate group in the copper oxide polysilicate backbone. The copper oxide polysilicate backbone is datively bonded to one or more tetramines, and the silicon-containing triamine and one or more tetramines are covalently cross-linked with terephthaloyl chloride to form a polyamide.
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公开(公告)号：US20240198297A1
公开(公告)日：2024-06-20
申请号：US18084085
申请日：2022-12-19
Inventor： Umair BAIG , Abdul WAHEED
CPC classification number: B01D71/68 , B01D71/0211 , B01D71/481 , B82Y30/00
Abstract: A membrane including a polysulfone/polyethylene terephthalate (PSf/PET) support and an active layer on an outer surface of the PSf/PET support. The active layer comprises reacted units of a diacyl chloride compound, a tetra-amine compound, and a nanocomposite including graphitic carbon nitride and polypyrrole. The membrane of the present disclosure is self-cleaning following exposure to radiation and finds application in water decontamination and de-salination.
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