Engineering surface states of carbon dots to achieve controllable luminescence for solid-luminescent composites and sensitive Be2+ detection
Nanjing University of Science and Technology · Nanjing University of Aeronautics and Astronautics · +2 more institutions
Abstract
Luminescent carbon dots (L-CDs) with high quantum yield value (44.7%) and controllable emission wavelengths were prepared via a facile hydrothermal method. Importantly, the surface states of the materials could be engineered so that their photoluminescence was either excitation-dependent or distinctly independent. This was achieved by changing the density of amino-groups on the L-CD surface. The above materials were successfully used to prepare multicolor L-CDs/polymer composites, which exhibited blue, green and even white luminescence. In addition, the excellent excitation-independent luminescence of L-CDs prepared at low temperature was tested for detecting various metal ions. As an example, the detection…
Citation impact
- FWCI
- 30.01
- Percentile
- 100%
- References
- 58
Authors
5- XLXiaoming LiCorresponding
Nanjing University of Science and Technology, Nanjing University of Aeronautics and Astronautics
- SZShengli Zhang
Nanjing University of Science and Technology
- SASergei A. Kulinich
Aston University, Tokai University
- YLYanli Liu
Nanjing University of Science and Technology, Nanjing University of Aeronautics and Astronautics
- HZHaibo Zeng
Nanjing University of Aeronautics and Astronautics, Nanjing University of Science and Technology
Topics & keywords
- Luminescence
- Materials science
- Photoluminescence
- Quantum yield
- Carbon fibers
- Excitation
- Detection limit
- Ion