国家/地区 中国（9）
IPC部 B（11） C（8）
IPC大类 B01（11） C02（8）
IPC小类 B01D（11）
IPC B01D061/02（11）
发明人 LIANG S（3） LIU G（3） WANG L（3）
HU L（2）
公开年 2023（11）
申请年 2022（6）  2023（3）  2021（2） 
专利权人 VONTRON TECH.（2）

Metal-doped graphene nanofiltration membrane used in various applications such as water purification, wastewater treatment, comprises graphene nanoparticle layer deposited with metal, porous support layer embedded with metal-doped graphene nanoparticle, membrane support layer, and transverse layer.

PUNETHA V D, KALPETIYA S

Preparing polyamide membrane for desalination of water from surface hydric body such as river, or for processing water for industrial reuse, involves applying dispersion of graphene oxide in ethyl alcohol, on membrane of selective polyamide layer, by spin-coating with low and high rotations.

SILVESTRE A A L, DE JESUS R B C, GOULART S G, SANTOS A M M, GOMIDE D C V, BRASIL Z Y L, DE ARAUJO CID DA SILVA R, SUHETT D S R

Preparing reverse osmosis membrane useful for desalination of boron sea water, comprises e.g. contacting base film with polyamine monomer solution, obtaining polyamide layer, heating, immersing in diethanolamine solution, immersing reverse in carboxy activator solution, coating and post-treating.

LIANG S, HU L, XIAO J, LIU G, YANG X

Covalently cross-linked graphene oxide nanofiltration membrane useful in nanofiltration, reverse osmosis and oil-water separation, has e.g. single graphene oxide material without any exogenous crosslinking agent participating in crosslinking, and interception objects are small neutral molecules.

XU X

Preparing carbon-based nanofiltration membrane for removing uranyl ions in aqueous solution, involves mixing inorganic strong acid solution and graphene oxide, performing thermal digestion, obtaining digested graphene oxide, and dispersing decomposed graphene oxide in water.

WANG L, YAO H, CAO L, NI S, SUN H, ZHU J, LIANG S, LIAO Y, LIU X, ZHOU F

Preparing nano-filtration membrane useful for e.g. water treatment, comprises e.g. oxidizing polypropylene microporous film to make surface hydroxylation, performing oxidation treatment by aqueous solution comprising persulfate composite, and post-processing to obtain nano membrane.

SONG P, HU L, LIU G, LIANG S

Graphene reverse osmosis composite membrane, prepared by pouring graphite oxide and silver nitrate aqueous solution into stirring device and mixing and stirring to obtain pre-coating, centrifugal washing the obtained paint.

CHEN Z, DING F, DAI H, WANG Y

High-performance nanofiltration membrane comprises base film, intermediate layer and polyamide separation layer sequentially fixed in polymethyl methacrylate frame, where intermediate layer is made of molecular sieve/graphene oxide composite material.

WANG X, LU X, LIU G, GUO S, WEI S, LIN Y, GUO Y, QIU Y

Hollow fiber solvent-resistant nano-filtration membrane useful e.g. for separation and purification of organic solvent system, comprises base film and separation skin layer, where base film material is polyimide of generating crosslinking reaction with polyamine compound.

LIU S, LV X, JIANG Y, LI S, SU J, SU B

Quantum dot graphene antibacterial adsorption electrostatic spinning nano-filtration membrane comprises high molecular polymer solution, graphene quantum dot and dispersant, where dispersant is prepared by electrospinning and crosslinking high molecular polymer-graphene quantum dot spinning solution.

WANG L, HU X, QI X, ZHAO H, QU L