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Schematic representation of the synthesis of P-doped CQDs from trisodium citrate and phosphoric acid. Reprinted from ACS Omega, 5, G. Kalaiyarasan, J. Joseph, and P. Kumar, Phosphorus-Doped Carbon Quantum Dots as Fluorometric Probes for Iron Detection, pages 22278–22288, copyright (2020) [155]. This work is licensed under the Creative Commons public use license, and further permissions related to the excerpted material should be directed to the ACS.
