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Facile one-pot synthesis of Mg-doped g-C₃N₄ for photocatalytic reduction of CO₂.

ABSTRACT: Graphitic carbon nitride (g-C₃N₄) has attracted wide attention due to its potential in solving energy and environmental issues. However, rapid charge recombination and a narrow visible light absorption region limit its performance. In our study, Mg-doped g-C₃N₄ was synthesized through a facile one-pot strategy for CO₂ reduction. After Mg doping, the light utilization efficiency and photo-induced electron-hole pair separation efficiency of the catalysts were improved, which could be due to the narrower band gap and introduced midgap states. The highest amounts of CO and CH₄ were obtained on Mg-CN-4% under ultraviolet light illumination, which were about 5.1 and 3.8 times that of pristine g-C₃N₄, respectively; the yield of CO and CH₄ reached 12.97 and 7.62 μmol g^-1 under visible light irradiation. Our work may provide new insight for designing advanced photocatalysts in energy conversion applications.

SUBMITTER: Dong X

PROVIDER: S-EPMC9071204 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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Facile one-pot synthesis of Mg-doped g-C3N4 for photocatalytic reduction of CO2.

Dong Xinyue X Zhang Suicai S Wu Hualin H Kang Zhuo Z Wang Li L

RSC advances 20190913 49

Graphitic carbon nitride (g-C3N4) has attracted wide attention due to its potential in solving energy and environmental issues. However, rapid charge recombination and a narrow visible light absorption region limit its performance. In our study, Mg-doped g-C3N4 was synthesized through a facile one-pot strategy for CO2 reduction. After Mg doping, the light utilization efficiency and photo-induced electron-hole pair separation efficiency of th ...[more]

PMID: 35529641

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