Determination of nickel(II) via quenching of the fluorescence of boron nitride quantum dots.
- Resource Type
- Article
- Authors
- Yao, Qiuhong; Feng, Yufeng; Rong, Mingcong; He, Shaogui; Chen, Xi
- Source
- Microchimica Acta. Oct2017, Vol. 184 Issue 10, p4217-4223. 7p.
- Subject
- *FLUORESCENCE
*NICKEL
*BORON nitride
*QUANTUM dots
*FLUORIMETRY
- Language
- ISSN
- 0026-3672
Fluorescent boron nitride quantum dots (BNQDs) were synthesized from boric acid and ammonium hydroxide by a hydrothermal method. Under 305 nm excitation, the BNQDs emit blue fluorescence with a peak at 400 nm and a quantum yield of 32%. The BNQDs are highly photostable and resistant to ionic strength. A rapid fluorometric method for the determination of Ni was developed using the heavy-metal free BNQDs via photo-induced electron transfer. Under optimal conditions, fluorescence varies linearly with the logarithm of the Ni concentration in the range from 0.1 to 100 μmol·L. The detection limit is 0.1 μmol·L. [ABSTRACT FROM AUTHOR]