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Superhydrophobic fluorescent micro-/nano-composites from carbon dots encapsulated in CaCO3-SiO2.
- Source :
-
Composite Interfaces . Apr2024, Vol. 31 Issue 4, p401-415. 15p. - Publication Year :
- 2024
-
Abstract
- In this paper, polyamine-functionalized carbon dots (CDs) were synthesized by means of low temperature (<100°C) carbonization of citric acid at the presence of polyethylenimine (PEI), resulting spherical calcium carbonate micro-particles from inverse micro-emulsion system. Nanoscaled spherical silicas were prepared by Stöber method via deposition on the surface of micron calcium carbonate. Scanning- and transmission-electron microscopic analysis confirmed a micro-/nano-complex structure, enabling the composite material coating possessed coarser surface similar to those of 'lotus leaf'. After modification with 1 H, 1 H, 2 H, 2 H-perfluorodecanethiol, both good super hydrophobicity and good fluorescent performance were confirmed by the water contact angle of 154.1°±1.5°, their surface-free energy, and fluorescence quantum yield of 14.1%, which provides an inexpensive and easy way to fabricate superhydrophobic material with fluorescence characteristics and promotes high value application of inorganic materials. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09276440
- Volume :
- 31
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Composite Interfaces
- Publication Type :
- Academic Journal
- Accession number :
- 175750024
- Full Text :
- https://doi.org/10.1080/09276440.2023.2262748