http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109762560-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-65 |
| filingDate | 2019-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109762560-B |
| titleOfInvention | Preparation method for synthesizing two kinds of fluorescent graphene quantum dots at one time |
| abstract | The invention relates to a preparation method for synthesizing two kinds of fluorescent graphene quantum dots at one time, and belongs to the technical field of nano materials. Mixing pyrene with concentrated HNO 3 Carrying out nitration reaction, cooling to room temperature after reaction, carrying out suction filtration washing, and drying to obtain a yellow intermediate product 1, 3, 6-trinitropyrene; dispersing the hydrazine hydrate into hydrazine hydrate solutions with different concentrations, and carrying out ultrasonic crushing; transferring the mixture to a polytetrafluoroethylene reaction kettle for hydrothermal reaction; and cooling to room temperature, taking out the solution, carrying out suction filtration, dialyzing the filtrate, finally respectively drying the solution inside and outside the dialysis bag, and collecting two graphene quantum dot powders with different fluorescence properties. According to the method, pyrene is used as a precursor, hydrazine hydrate is used as a modifier, and the concentration of the modifier is changed to realize simultaneous preparation and separation of two graphene quantum dots. |
| priorityDate | 2019-03-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.