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Green synthesis of carbon dots with down- and up-conversion fluorescent properties for sensitive detection of hypochlorite with a dual-readout assay
Abstract
High quality carbon dots (C-dots) with down- and up-conversion fluorescence have been synthesized through low-temperature carbonization using sweet pepper as the carbon source. The C-dots with a quantum yield (QY) of 19.3% exhibit superior photophysical properties, for example, narrow and symmetric emission spectra, large stock shifts, resistance to photobleaching, and excitation-dependent fluorescence behavior. The excellent C-dots serve as useful fluorescent probes for hypochlorite (ClO(-)) detection by both down- and up-conversion fluorescence. Two consecutive linear ranges allow a wide determination of ClO(-) concentrations with a low detection limit of 0.05 μmol L(-1) and 0.06 μmol L(-1) (S/N = 3) for down- and up-conversion fluorescence measurements, respectively. The proposed detection method is advantageous because it is simple, sensitive, dual-signalling model and low-cost and has potential extensive applications in environmental and biological assays.
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Cites
One-step synthesis of fluorescent carbon nanoparticles by laser irradiation
Hu, S.-L., Niu, K.-Y., Sun, J., Yang, J., Zhao, N.-Q., & Du, X.-W. (2009) · J. Mater. Chem. · doi:10.1039/b812943f · Cited by 968
Cited by
Carbon quantum dots and their applications
Lim, S. Y., Shen, W., & Gao, Z. (2015) · Chemical Society Reviews · doi:10.1039/c4cs00269e · Cited by 4,976
Glowing Graphene Quantum Dots and Carbon Dots: Properties, Syntheses, and Biological Applications
Zheng, X. T., Ananthanarayanan, A., Luo, K. Q., & Chen, P. (2015) · Small · doi:10.1002/smll.201402648 · Cited by 2,190
Carbon quantum dots from natural resource: A review
Das, R., Bandyopadhyay, R., & Pramanik, P. (2018) · Materials Today Chemistry · doi:10.1016/j.mtchem.2018.03.003 · Cited by 804
Photoluminescent carbon nanodots: synthesis, physicochemical properties and analytical applications
Roy, P., Chen, P.-C., Periasamy, A. P., Chen, Y.-N., & Chang, H.-T. (2015) · Materials Today · doi:10.1016/j.mattod.2015.04.005 · Cited by 566
Tyagi, A., Tripathi, K. M., Singh, N., Choudhary, S., & Gupta, R. K. (2016) · RSC Advances · doi:10.1039/c6ra10488f · Cited by 554
Metadata
- Authors
- Yin, B., Deng, J., Peng, X., Long, Q., Zhao, J., Lu, Q., Chen, Q., Li, H., Tang, H., Zhang, Y., & Yao, S.
- Venue
- The Analyst
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2013
- Volume
- 138
- Issue
- 21
- Pages
- 6551
- ISSN
- 0003-2654 (ISSN-L)
- 1364-5528
- OpenAlex
- W2003578990
- Cited by
- 303
- References
- 1
- FWCI
- 9.32
- Type
- journal article
- Language
- en
- Open access
- closed
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- Yin, B., Deng, J., Peng, X., Long, Q., Zhao, J., Lu, Q., Chen, Q., Li, H., Tang, H., Zhang, Y., & Yao, S. (2013). Green synthesis of carbon dots with down- and up-conversion fluorescent properties for sensitive detection of hypochlorite with a dual-readout assay. The Analyst. https://doi.org/10.1039/c3an01003a
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