Preparation of Yellow Fluorescent N,O-CDs and its Application in Detection of ClO−
- 3 February 2021
- journal article
- research article
- Published by Springer Science and Business Media LLC in Journal of Fluorescence
- Vol. 31 (3), 659-666
- https://doi.org/10.1007/s10895-021-02686-4
Abstract
Accurate and efficient detection of ClO− was extremely important due to the harm of ROS in the environment and organism. In this paper, yellow fluorescent N,O-CDs were successfully prepared by the solvothermal method. The microscopic size of the N,O-CDs was approximately spherical with an average particle size of 4.8 ± 0.8 nm. The fluorescence quantum yield in ethanol solution was calculated as 10.5 % using fluorescein as the standard reference. The as-fabricated N,O-CDs had high sensitivity and low detection limit (7.5 µM) for quantitatively detecting ClO− with a linear range from 0.07 mM to 0.16 mM. The probe not only shows good selectivity and anti-interference to metal ions, anions and amino acids but also has excellent light stability and thermal stability. Also, a wide selection range for pH was demonstrated. Graphical AbstractKeywords
Funding Information
- National Natural Science Foundation of China (U1704161)
- National Natural Science Foundation of China (U1504203)
- National Natural Science Foundation of China (21601158)
- Zhengzhou University (32210431)
- Beijing Natural Science Foundation (4182069)
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