Continuous hydrothermal flow synthesis of graphene quantum dots
| Autor: | Paolo Coppo, Ioan-Alexandru Baragau, Vesna Middelkoop, Tobias Heil, Colin L. Raston, John Acord, David J. Morgan, Suela Kellici, Nicholas P. Power, Katherine E. Moore |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
continuous hydrothermal flow synthesis
Materials science Photoluminescence 02 engineering and technology 010402 general chemistry 01 natural sciences Catalysis Hydrothermal circulation law.invention law CHFS Chemical Engineering (miscellaneous) Quantum 2D Fluid Flow and Transfer Processes graphene quantum dots Graphene Process Chemistry and Technology 021001 nanoscience & nanotechnology Supercritical fluid 0104 chemical sciences Chemical engineering Chemistry (miscellaneous) Quantum dot Surface modification 0210 nano-technology |
| ISSN: | 2058-9883 |
| Popis: | Green fluorescent graphene quantum dots (GQD) have been synthesized via hydrothermal fragmentation using a continuous hydrothermal flow synthesis (CHFS) process as a single, rapid and environmentally benign method. This is in the presence of p-phosphonic acid calix[4]arene which enhances the optical properties of the graphene quantum dots through surface functionalization, with photoluminescence quantum yields of up to 4.5%. Potential environmental impact of a lab-scale supercritical CHFS process compared with that of conventional batch processing of GQDs has been assessed using the method of the International Reference Life Cycle Data System (ILCD). |
| Databáze: | OpenAIRE |
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