Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 8, Pages 7315-7323Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b15250
Keywords
boron nitride quantum dots; fluorescence stabilities; inner filter effect; 2,4,6-trinitrophenol; photoluminescent sensor
Funding
- National Natural Science Foundation of China [21475064, 21675078]
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A facile and green approach has been developed for synthesis of boron nitride quantum dots (BNQDs). The obtained BNQDs exhibit strong fluorescence and excellent stabilities, including high thermostability, good salt tolerance stability, pH independence ability, and excellent antiphotobleaching capability. The strong inner filter effect between 2,4,6-trinitrophenol (TNP) and BNQDs resulted in fluorescence quenching of BNQDs. Thus, TNP can be selectively and sensitively detected in the concentration range of 0.25-200 mu M, with a limit detection of 0.14 mu M. The BNQD-based turn-off sensor shows potential prospects for rapidly and selectively detecting TNP in natural water samples without tedious sample pretreatment processes.
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