国家/地区 中国（51） 美国（10） 韩国（6） 世界知识产权组织（6） 欧洲专利局（EPO）（5） 日本（4） 澳大利亚（3） 印度（3） 新加坡（2） 台湾（2）
IPC部 B（60）
IPC大类 B01（60）
IPC小类 B01D（60）
IPC B01D067/00（60）
发明人 LIU Y（4） ZHANG X（4） ZHAO X（4）
LI S（3） LIU X（3） ZHANG M（3）
ZHANG Y（3） ZHOU Z（3） GRIGGS C S（2）
HUANG Y（2） LI B（2） LIN C（2）
LIU T（2） MA K（2） WANG B（2）
公开年 2021（31） 2020（24） 2022（5）
申请年 2020（60）
专利权人 UNIV TIANJIN（2） US SEC OF AR.（2）

Nanofiltration membrane for use in the filtration of quantum dot solutions, comprises graphene oxide and a layered multi-metal hydroxide dispersed in the graphene oxide, the graphene oxide and the layered multimetal hydroxide are bonded together by electrostatic interaction.

DENG C

Preparation of nanofiltration membrane involves coating film casting liquid containing polymer on nonwoven fabric, contacting obtained base film with e.g. aqueous phase solution containing amine monomer to form polyamide functional layer, crosslinking, imidizing, post-treating, and drying.

LIU Z, ZHANG J, HU L, LIANG S, WANG B

Polyvinylidene fluoride composite membrane, used in water treatment, comprises PVDF-based membrane, and poly-dopamine/oxidation graphene composite layer compounded on the film.

ZHAO X, LIU L, ZHU Z, MIAO L, MA J, JIA G

Polymer solution used for preparing nanofiltration membrane in water treatment, and also in high-temperature separation and desalination, comprises polyaryl ether sulfone block polymer, good solvent, poor solvent and additive.

CAO M

Graphene oxide titanium dioxide-dopamine polyetherimide nanofiltration membrane comprises organic ultrafiltration membrane support and functional layer prepared by ultrasonically mixing graphene oxide solution and titanium dioxide-dopamine aqueous solution, filtering to form membrane, and filtering.

LAN W, FANG F, HONG Y, CHEN Y

Preparing sericin doped graphene oxide membrane for forward osmosis by isolating graphene oxide flakes by centrifuging, collecting supernatant, pouring sericin solution on nylon support, pouring medium graphene oxide flake dispersion under vacuum pressure, heating, immersing in water and drying.

DEKA P, VERMA V K, SUBBIAH S, RAIDONGIA K, KEJRIWAL R

Preparing graphene based on mixed inorganic acid solvent by e.g. pre-treating raw material graphite powder, preparing mixed inorganic acid solvent, performing graphene peeling treatment, and extracting graphene product from graphene mixture.

QIAN X, MA C

Preparation of composite modified film used in water treatment, involves soaking polyvinylidene fluoride film in solution of tris(hydroxymethyl)aminomethane hydrochloride and diaminoguanidine, modifying by oxidation deposition, and immersing film in aminated graphene oxide solution and grafting.

LIN Z, CHEN Z, YOU W, ZHANG B, WANG Y, LIN H, LI S, HUANG Y, LI D

Preparing gas selective separation filter involves providing graphene membrane on sacrificial support layer, subjecting graphene membrane to transient pressurized ozone gas pulse, purging ozone, and cooling down ozone treated graphene membrane.

AGRAWAL K V, HUANG S, HSU K, AGRAWAL K, HWANG S, HUSH K, XU G

Preparing graphene-containing mixed film, comprises e.g. using strong oxidant to oxidize layered graphite powder to form layered graphene oxide with carbonyl, carboxyl and epoxy groups, and mixing Dimethylformamide and graphene oxide.

LIN C, LIU T, CHUANG Y, WEI H, HSU N