Hydrothermal synthesis of nitrogen-doped carbon quantum dots from lignin for formaldehyde determination
Ying WangKey Laboratory of Bio-based Material Science &Technology, Northeast Forestry University, Ministry of Education, Harbin 150040, P. R. ChinaYushan LiuKey Laboratory of Bio-based Material Science &Technology, Northeast Forestry University, Ministry of Education, Harbin 150040, P. R. ChinaJinchuan ZhouKey Laboratory of Bio-based Material Science &Technology, Northeast Forestry University, Ministry of Education, Harbin 150040, P. R. ChinaJinquan YueKey Laboratory of Bio-based Material Science &Technology, Northeast Forestry University, Ministry of Education, Harbin 150040, P. R. ChinaMingcong XuKey Laboratory of Bio-based Material Science &Technology, Northeast Forestry University, Ministry of Education, Harbin 150040, P. R. ChinaBang AnKey Laboratory of Bio-based Material Science &Technology, Northeast Forestry University, Ministry of Education, Harbin 150040, P. R. ChinaChunhui MaKey Laboratory of Bio-based Material Science &Technology, Northeast Forestry University, Ministry of Education, Harbin 150040, P. R. ChinaWei LiKey Laboratory of Bio-based Material Science &Technology, Northeast Forestry University, Ministry of Education, Harbin 150040, P. R. ChinaShouxin LiuKey Laboratory of Bio-based Material Science &Technology, Northeast Forestry University, Ministry of Education, Harbin 150040, P. R. China
2021en
ABI
Annotatsiya
). A composite film comprising NCQDs with poly(vinyl alcohol) was found to act as a sensor with a good FL response to FA gas. When exposed to gaseous FA, this film exhibited increased FL intensity and transitioned from blue-green to blue. A mechanism is proposed in which the NCQDs react rapidly with FA to generate Schiff bases that result in enhanced FL emission and the observed blue shift in color.
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