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Molecular Fluorescence in Citric Acid-Based Carbon Dots
Abstract
Nitrogen-doped carbon dots synthesized from citric acid as a carbon precursor have recently been considered to contain fluorescent derivatives of citrazinic acid, which contribute to their emission in the blue spectral range. To study the impact of such molecular fluorescent species on the optical properties of carbon dots, we synthesized three samples employing citric acid and three different nitrogen sources: ethylenediamine, hexamethylenetetramine, and triethanolamine. On the basis of the analysis of the nitrogen content and its coordination by X-ray photoelectron spectroscopy, FTIR spectra, and systematically comparing absorption, steady-state emission, and photoluminescence decays of each kind of carbon dot, we derive the influence of the molecular precursors and gain further understanding of the complex structure of carbon dots highlighting the strong impact of molecular fluorescence in the samples produced with ethylenediamine and hexamethylenetetramine.
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Cites
Metal-free efficient photocatalyst for stable visible water splitting via a two-electron pathway
Liu, J., Liu, Y., Liu, N., Han, Y., Zhang, X., Huang, H., Lifshitz, Y., Lee, S.-T., Zhong, J., & Kang, Z. (2015) · Science · doi:10.1126/science.aaa3145 · Cited by 4,468
Cited by
Iravani, S., & Varma, R. S. (2020) · Environmental Chemistry Letters · doi:10.1007/s10311-020-00984-0 · Cited by 532
Vallan, L., Urriolabeitia, E. P., Ruipérez, F., Matxain, J. M., Canton-Vitoria, R., Tagmatarchis, N., Benito, A. M., & Maser, W. K. (2018) · Journal of the American Chemical Society · doi:10.1021/jacs.8b06051 · Cited by 339
The polymeric characteristics and photoluminescence mechanism in polymer carbon dots: A review
Tao, S., Zhu, S., Feng, T., Xia, C., Song, Y., & Yang, B. (2017) · Materials Today Chemistry · doi:10.1016/j.mtchem.2017.09.001 · Cited by 293
Sciortino, A., Cannizzo, A., & Messina, F. (2018) · C · doi:10.3390/c4040067 · Cited by 253
Metadata
- Authors
- Schneider, J., Reckmeier, C. J., Xiong, Y., von Seckendorff, M., Susha, A. S., Kasák, P., & Rogach, A. L.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-01-12
- Volume
- 121
- Issue
- 3
- Pages
- 2014-2022
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2566101769
- Cited by
- 701
- References
- 1
- FWCI
- 22.70
- Type
- journal article
- Language
- en
- Open access
- closed
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- Schneider, J., Reckmeier, C. J., Xiong, Y., von Seckendorff, M., Susha, A. S., Kasák, P., & Rogach, A. L. (2017). Molecular Fluorescence in Citric Acid-Based Carbon Dots. The Journal of Physical Chemistry C. https://doi.org/10.1021/acs.jpcc.6b12519
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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