http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109135736-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y20-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y30-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N21-643 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K11-65 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y30-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y20-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N21-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-65 |
| filingDate | 2018-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109135736-B |
| titleOfInvention | Nitrogen-doped carbon quantum dot and preparation method and application thereof |
| abstract | The invention provides a preparation method of nitrogen-doped carbon quantum dots, and belongs to the technical field of functional material preparation. The preparation method provided by the invention mixes the crude extract containing procyanidine, the organic nitrogen dopant and water, and carries out hydrothermal carbonization reaction to obtain the nitrogen-doped carbon quantum dot. According to the invention, the procyanidine extract is used as a carbon precursor, and is mixed with an organic nitrogen dopant for hydrothermal reaction, so that the formed nitrogen-doped carbon quantum dot has rich surface functional groups, strong fluorescence, excellent pH stability and high ionic strength tolerance; exhibits high selectivity to perfluorooctanesulfonate, which is common in water. The embodiment shows that the detection linear range of the nitrogen-doped carbon quantum dots to the perfluorooctanesulfonate is 3-160 multiplied by 10 ‑10 mol/L, detection limit is 0.3nM, and can be used for rapid detection of trace perfluorooctanesulfonate in environmental water sample. |
| priorityDate | 2018-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 101.