Journal
JOURNAL OF LUMINESCENCE
Volume 206, Issue -, Pages 158-163Publisher
ELSEVIER
DOI: 10.1016/j.jlumin.2018.10.057
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Funding
- National Key Research and Development Program [2018YFB0504400]
- Natural Science Foundation of Tianjin [16JCQNJC05100]
- Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Guangxi Normal University) [CMEMR2016-B11]
- National Natural Science Foundation of China [11574160]
- National Basic Research Program of China [2014CB339802]
- 111 Project [B16027]
- Fundamental Research Funds for the Central Universities
- open research funds of the State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics (SIOM)
- Special Support Plan for Talent Development in Tianjin
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Using citric acid as the carbon source and glutathione as nitrogen and sulfur donor, carbon quantum dots co-doped with N and S (N/S-CQDs) were successfully synthesized with a fast (within 1 h) and clean microwave-assisted oil bath method. The quantum yield reached as high as 76.5% at 350 nm excitation light. Simultaneously, we found that the N/S-CQDs were featured with good anti-photobleaching properties and sodium chloride concentration had little effect on the fluorescence intensity of N/S-CQDs, which were of great significance for the application of fluorescent N/S-CQDs in real environment such as sensing and imaging. Moreover, N/S-CQDs coped gold nanoparticles (AuNPs) performed fluorescence resonance energy transfer (FRET) from N/S-CQDs to AuNPs, building a complex fluorescent probe for the detection of drug methimazole.
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