Citation: Chang Liu, Rui Cheng, Jiazhuang Guo, Ge Li, He Li, Hong-Gang Ye, Zhi-Bin Liang, Cai-Feng Wang, Su Chen. Carbon dots embedded nanofiber films: Large-scale fabrication and enhanced mechanical properties[J]. Chinese Chemical Letters, ;2022, 33(1): 304-307. doi: 10.1016/j.cclet.2021.06.073 shu

Carbon dots embedded nanofiber films: Large-scale fabrication and enhanced mechanical properties

State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, and Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, Nanjing 210009, China

caifengwang@njtech.edu.cn

chensu@njtech.edu.cn

Received Date: 6 May 2021
Revised Date: 23 June 2021
Accepted Date: 28 June 2021
Available Online: 7 July 2021

Figures(4)

Valuable application prospects and large-scale production technologies are powerful driving forces for the development of materials science. Carbon dots (CDs) are a kind of promising carbon-based fluorescent nanomaterials, which possess wide application prospects based and even beyond the fluorescence properties. Herein, we report the fast and high-yield synthesis of CDs and the large-scale preparation of fluorescent nanofiber films with enhanced mechanical properties. CDs were prepared from magnetic hyperthermia treatment of citric acid and carbamide, with the output of 25.37 g in a single batch. The as-prepared CDs exhibit a high absolute photoluminescence (PL) quantum yield (QY) of 67% and wonderful dispersibility in polar solvents. Then, solution blow spinning of CDs and polymer matrixes of alcohol soluble polyurethane (APU) and polyacrylonitrile (PAN) led to large-area fluorescent CDs-embedded nanofiber films, APU/CDs (size: 120 cm × 18 cm) and PAN/CDs (size: 120 cm × 22 cm), respectively. The resultant large-area APU/CDs and PAN/CDs nanofiber films have dramatically enhanced mechanical properties, to show integrated improvement of tensile strength and elongation.
- Carbon dots,
- Mass production,
- Solution blow spinning,
- Nanofiber,
- Mechanical properties
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