Green production of highly fluorescent carbon quantum dots from carbon dioxide
US10011767B2 · kind B2 · utility
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Key dates
| Filing date | Jun 29, 2016 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Jun 29, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/95
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A method of preparing fluorescent material containing carbon quantum dots, comprising milling a metal in the presence of carbon dioxide in a sealed container for a set duration to form the carbon quantum dots containing material. The carbon dioxide is preferably obtained as a waste gas from a human related activity such as an industrial process and may be provided in the form of dry ice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.