http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109847599-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A20-131 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-02 |
| filingDate | 2018-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109847599-B |
| titleOfInvention | Preparation method and application of dopamine intercalation copolymerization graphene oxide nanofiltration membrane |
| abstract | The invention provides a preparation method and application of a dopamine intercalation copolymerization graphene oxide nanofiltration membrane. The preparation method comprises the following steps: (1) dispersing graphene oxide in water, and performing ultrasonic treatment to uniformly disperse the graphene oxide to obtain a graphene oxide aqueous dispersion; (2) taking the graphene oxide aqueous dispersion, carrying out vacuum filtration on the graphene oxide aqueous dispersion until the surface of the polysulfone ultrafiltration membrane is filtered, and then stabilizing at room temperature for 1-2 hours to obtain a GO membrane; (3) carrying out vacuum filtration on the dopamine solution to the inner layer of the GO membrane to obtain an dGO membrane; (4) then, pumping and filtering an initiator to an dGO film, and initiating dopamine polymerization in situ; (5) and (3) carrying out vacuum drying on the membrane obtained in the step (4) at the temperature of 40-70 ℃ to promote further polymerization of dopamine, so as to obtain the dopamine intercalation copolymerization graphene nanofiltration membrane, wherein the nanofiltration membrane has long service life and can be applied to a membrane separation cross flow device. The invention provides the application of the dopamine intercalation copolymerization graphene oxide nanofiltration membrane in dye desalination with the molecular weight of more than 300, and the dopamine intercalation copolymerization graphene oxide nanofiltration membrane has a good separation effect. |
| priorityDate | 2018-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.