期刊
COMPOSITE INTERFACES
卷 -, 期 -, 页码 -出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09276440.2023.2262748
关键词
Composite material; fluorescence; hydrophobicity; Owens-Wendt model
In this study, polyamine-functionalized carbon dots were synthesized through low temperature carbonization, and nanoscaled spherical silicas were prepared through deposition method. The modified composite material exhibited good super hydrophobicity and fluorescent performance.
In this paper, polyamine-functionalized carbon dots (CDs) were synthesized by means of low temperature (<100 degrees 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 St & ouml;ber 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 degrees +/- 1.5 degrees, 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.
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