The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Carbon Nitride Quantum Dots: A Novel Chemiluminescence System for Selective Detection of Free Chlorine in Water
Abstract
A facile one-step microwave-assisted approach for the preparation of strong fluorescent carbon nitride quantum dots (g-CNQDs) by using guanidine hydrochloride and EDTA as the precursors was developed. Strong chemiluminescence (CL) emission was observed when NaClO was injected into the prepared g-CNQDs, and a novel CL system for direct detection of free chlorine was established. Free residual chlorine in water was sensitively detected with a detection limit of 0.01 μM and had a very wide detection range of 0.02 to 10 μM. On the basis of CL spectral, UV-visible absorption spectral, and electron spin resonance (ESR) spectral studies, as well as investigations on the effects of various free radical scavengers, a possible CL mechanism was proposed. It was suggested that the radiative recombination of oxidant-injected holes and electrons in the g-CNQDs accounted for the CL emission. Meanwhile, (1)O2 on the surface of g-CNQDs, generated from some reactive oxygen species in the g-CNQDs-NaClO system, could transfer energy to g-CNQDs and thus further enhance the CL emission. The CL system is highly sensitive and differentiable, opening a new field for the development of novel CL-emitting species, but also expanding the conventional optical utilizations of g-CNQDs.
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Cites
Barman, S., & Sadhukhan, M. (2012) · Journal of Materials Chemistry · doi:10.1039/c2jm35501a · Cited by 462
Sadhukhan, M., & Barman, S. (2013) · Journal of Materials Chemistry A · doi:10.1039/c3ta01523h · Cited by 144
Cited by
Ong, W.-J., Tan, L.-L., Ng, Y. H., Yong, S.-T., & Chai, S.-P. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00075 · Cited by 7,147
Review of Carbon and Graphene Quantum Dots for Sensing
Li, M., Chen, T., Gooding, J. J., & Liu, J. (2019) · ACS Sensors · doi:10.1021/acssensors.9b00514 · Cited by 991
Quantum dots derived from two-dimensional materials and their applications for catalysis and energy
Wang, X., Sun, G., Li, N., & Chen, P. (2016) · Chemical Society Reviews · doi:10.1039/c5cs00811e · Cited by 498
Rong, M., Lin, L., Song, X., Zhao, T., Zhong, Y., Yan, J., Wang, Y., & Chen, X. (2015) · Analytical Chemistry · doi:10.1021/ac5039913 · Cited by 334
Recent progress in two-dimensional inorganic quantum dots
Xu, Y., Wang, X., Zhang, W. L., Lv, F., & Guo, S. (2018) · Chemical Society Reviews · doi:10.1039/c7cs00500h · Cited by 304
Metadata
- Authors
- Tang, Y., Su, Y., Yang, N., Zhang, L., & Lv, Y.
- Venue
- Analytical Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-04-14
- Volume
- 86
- Issue
- 9
- Pages
- 4528-4535
- ISSN
- 0003-2700 (ISSN-L)
- 1520-6882
- OpenAlex
- W2327845453
- Cited by
- 345
- References
- 2
- FWCI
- 15.19
- Type
- journal article
- Language
- en
- Open access
- closed
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