-
公开(公告)号：US11951446B2
公开(公告)日：2024-04-09
申请号：US18333528
申请日：2023-06-12
发明人： Gongping Liu , Yang Pan , Wanqin Jin
CPC分类号： B01D71/701 , B01D53/228 , B01D67/00113 , B01D67/0013 , B01D67/0018 , B01D69/02 , B01D69/105 , B01D69/107 , B01D69/12 , B01D2257/102 , B01D2257/104 , B01D2257/504 , B01D2323/12 , B01D2323/345 , B01D2325/04
摘要： The present disclosure provides an acryloyloxy-terminated polydimethylsiloxane (AC-PDMS)-based thin-film composite (TFC) membrane, and a preparation method and use thereof. In the preparation method, a simple ultraviolet (UV)-induced monomer polymerization strategy based on high UV reactivity among acryloyloxy groups is adopted to prepare the AC-PDMS-based TFC membrane. The high UV reactivity among AC-PDMS monomers can induce the rapid curing of a casting solution to enable the formation of an ultra-thin selective layer and the inhibition of pore penetration for a substrate. By optimizing a UV wavelength, an irradiation time, and a polymer concentration, the prepared AC-PDMS-based TFC membrane has a CO2 penetration rate of 9,635 GPU and a CO2/N2 selectivity of 11.5. The UV-induced monomer polymerization strategy based on material properties provides a novel efficient strategy for preparing an ultra-thin PDMS-based membrane, which can be used for molecular separation.
-
公开(公告)号：US20240299878A1
公开(公告)日：2024-09-12
申请号：US18670321
申请日：2024-05-21
IPC分类号： B01D53/22 , B01D53/52 , B01D67/00 , B01D69/08 , B01D69/12 , B01D69/14 , B01D71/16 , B01D71/78 , C08K5/5419 , C08L1/12
CPC分类号： B01D53/228 , B01D67/0009 , B01D67/00113 , B01D67/0013 , B01D67/002 , B01D67/006 , B01D67/00931 , B01D69/08 , B01D69/12 , B01D69/14 , B01D69/148 , B01D71/16 , B01D71/78 , C08K5/5419 , C08L1/12 , B01D53/52 , B01D2257/304 , B01D2257/50 , B01D2323/22 , B01D2323/30 , B01D2323/38 , B01D2323/46 , B01D2325/0283 , B01D2325/20 , B01D2325/24 , C08L2203/16
摘要： Described in the present application are methods of producing silane-crosslinked polymer membranes at moderate temperatures using acid catalysts that, in certain embodiments, result in membranes with unexpectedly high permeabilities and selectivities. In certain embodiments, grafting and crosslinking of the silanes occur by immersing a preformed membrane in a solution comprising a silane and an acid catalyst. Alternatively, in certain embodiments, grafting of silanes to a polymer occurs in the presence of acid catalyst in solution and subsequent casting and drying produces crosslinked membranes. In certain embodiments, an acid catalyst is a weak acid catalyst. Also described in the present application are asymmetric crosslinked polymer membranes with porous layers. In certain embodiments, crosslinked cellulose acetate membranes have permeability up to an order of magnitude greater than the permeability of unmodified cellulose acetate membranes. The membranes have porous layers with a high porosity due to their processing in moderate conditions.
-
公开(公告)号：US11951445B2
公开(公告)日：2024-04-09
申请号：US18195735
申请日：2023-05-10
发明人： Jun Wang , Bingtao Zhang , Hongsen Zhang , Qi Liu , Jiahui Zhu , Jingyuan Liu , Jing Yu , Rongrong Chen , Lele Wang
IPC分类号： B01D69/14 , B01D61/02 , B01D67/00 , B01D69/02 , B01D69/10 , B01D71/42 , C02F1/30 , C02F1/44 , C02F1/70 , C02F101/20 , C02F103/08
CPC分类号： B01D69/145 , B01D67/00113 , B01D67/0013 , B01D67/0016 , B01D67/00793 , B01D69/02 , B01D69/105 , B01D69/108 , B01D69/14111 , B01D71/421 , B01D61/025 , B01D2323/081 , B01D2323/12 , B01D2323/21 , B01D2323/21813 , B01D2323/21817 , B01D2323/2185 , B01D2323/2187 , B01D2323/22 , B01D2323/56 , B01D2325/025 , B01D2325/34 , C02F1/30 , C02F1/441 , C02F1/70 , C02F2101/20 , C02F2103/08
摘要： The present disclosure relates to the field of materials for uranium extraction from seawater (UES), and in particular, to a photothermal photocatalytic membrane for seawater desalination and uranium extraction and a preparation method therefor. The present disclosure provides a photothermal photocatalytic membrane for seawater desalination and uranium extraction and a preparation method therefor. The preparation method includes: fixing a treated carbon cloth to a glass plate, pouring a casting solution 1 onto the carbon cloth to form a first layer of film, forming a second layer of film using a casting solution 2, and putting the second layer of film into a first coagulation bath and a second coagulation bath in sequence to form the photothermal photocatalytic membrane. The photothermal photocatalytic membrane is supported by the carbon cloth, and a surface of the photothermal photocatalytic membrane is of a micro-nano structure.
-
公开(公告)号：US11925905B2
公开(公告)日：2024-03-12
申请号：US17883593
申请日：2022-08-08
发明人： Chun Tang
CPC分类号： B01D69/105 , B01D61/002 , B01D67/00113 , B01D67/0013 , B01D67/0083 , B01D67/0088 , B01D67/0097 , B01D69/02 , B01D69/1071 , B01D71/16 , B01D2323/081 , B01D2323/12 , B01D2325/04 , B01D2325/36 , B01D2325/48
摘要： The forward osmosis membrane and the preparation method thereof provided by the present invention, through fully cover the support mesh layer of the membrane with antibacterial nanoparticles, especially the mixture of nano-Ag and nano TiO2, ensures without reducing the strength, water flux and salt rejection, providing an effective, long-term and comprehensive antibacterial effect. In the present invention, the antibacterial nanoparticles, especially the mixture of nano-Ag and nano-TiO2, are used to carry out antibacterial modification on the support mesh of the forward osmosis membrane, so as to inhibit the growth of bacteria on the forward osmosis membrane, improves the forward osmosis and also improves the safety of the entire purification and filtration system. The antibacterial forward osmosis membrane of the present invention can be applied to the filtration and purification of complex water sources, especially the purification and filtration of eutrophic and bacteria-prone water sources.
-
公开(公告)号：US20230398504A1
公开(公告)日：2023-12-14
申请号：US18333528
申请日：2023-06-12
发明人： Gongping LIU , Yang PAN , Wanqin JIN
CPC分类号： B01D71/701 , B01D67/0013 , B01D67/0018 , B01D67/00113 , B01D69/02 , B01D69/107 , B01D69/105 , B01D69/12 , B01D53/228 , B01D2325/04 , B01D2323/345 , B01D2323/12 , B01D2257/102 , B01D2257/104 , B01D2257/504
摘要： The present disclosure provides an acryloyloxy-terminated polydimethylsiloxane (AC-PDMS)-based thin-film composite (TFC) membrane, and a preparation method and use thereof. In the preparation method, a simple ultraviolet (UV)-induced monomer polymerization strategy based on high UV reactivity among acryloyloxy groups is adopted to prepare the AC-PDMS-based TFC membrane. The high UV reactivity among AC-PDMS monomers can induce the rapid curing of a casting solution to enable the formation of an ultra-thin selective layer and the inhibition of pore penetration for a substrate. By optimizing a UV wavelength, an irradiation time, and a polymer concentration, the prepared AC-PDMS-based TFC membrane has a CO2 penetration rate of 9,635 GPU and a CO2/N2 selectivity of 11.5. The UV-induced monomer polymerization strategy based on material properties provides a novel efficient strategy for preparing an ultra-thin PDMS-based membrane, which can be used for molecular separation.
-
6.发明公开公开(公告)号：US20230381719A1
公开(公告)日：2023-11-30
申请号：US18195735
申请日：2023-05-10
发明人： Jun Wang , Bingtao Zhang , Hongsen Zhang , Qi Liu , Jiahui Zhu , Jingyuan Liu , Jing Yu , Rongrong Chen , Lele Wang
CPC分类号： B01D69/145 , B01D71/421 , B01D69/14111 , B01D69/105 , B01D69/108 , B01D69/02 , B01D67/00793 , B01D67/00113 , B01D67/0013 , B01D67/0016 , B01D61/025
摘要： The present disclosure relates to the field of materials for uranium extraction from seawater (UES), and in particular, to a photothermal photocatalytic membrane for seawater desalination and uranium extraction and a preparation method therefor. The present disclosure provides a photothermal photocatalytic membrane for seawater desalination and uranium extraction and a preparation method therefor. The preparation method includes: fixing a treated carbon cloth to a glass plate, pouring a casting solution 1 onto the carbon cloth to form a first layer of film, forming a second layer of film using a casting solution 2, and putting the second layer of film into a first coagulation bath and a second coagulation bath in sequence to form the photothermal photocatalytic membrane. The photothermal photocatalytic membrane is supported by the carbon cloth, and a surface of the photothermal photocatalytic membrane is of a micro-nano structure.
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.011 秒)
