Samples of nanocrystalline graphite-like carbon nitride (CGCN) modified with magnesium chloride have been obtained. The synthesized Mg-CGCN samples have been characterized by UV and IR spectroscopies, X-ray diffraction, energy dispersive X-ray analysis, and scanning electron microscopy. It is found that Mg-CGCN exhibits 60% higher photocatalytic activity in the reaction of hydrogen evolution from aqueous ethanol solutions under visible light than undoped CGCN. This may be related to a change in electrophysical characteristics (potentials of allowed bands) resulting from the incorporation of Mg2+ ions into the CGCN structure, improved dissociation of photogenerated charges, and inhibition of their recombination.
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Translated from Teoretychna ta Eksperymentalna Khimiya, Vol. 58, No. 3, pp. 179-184, May-June, 2022.
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Grodzyuk, G.Y., Koryakina, K.V., Shvalagin, V.V. et al. Photocatalytic Evolution of Hydrogen from Alcohol–Aqueous Solutions using Nanocrystalline Carbon Nitride Modified with Magnesium Chloride Under the Visible Light Irradiation. Theor Exp Chem 58, 198–204 (2022). https://doi.org/10.1007/s11237-022-09736-3
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DOI: https://doi.org/10.1007/s11237-022-09736-3