Photocatalytic Evolution of Hydrogen from Alcohol–Aqueous Solutions using Nanocrystalline Carbon Nitride Modified with Magnesium Chloride Under the Visible Light Irradiation

被引：0
作者：
G. Ya. Grodzyuk
K. V. Koryakina
V. V. Shvalagin
G. V. Korzhak
S. Ya. Kuchmiy
机构：
[1] L. V. Pisarzhevsky Institute of Physical Chemistry,
[2] NAS of Ukraine,undefined
[3] Taras Shevchenko Kyiv National University,undefined
来源：
Theoretical and Experimental Chemistry | 2022年 / 58卷
关键词：
nanocrystalline carbon nitride; magnesium modification; photocatalysis; hydrogen evolution;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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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页码：198 / 204
页数：6
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