Na-mediated carbon nitride realizing CO2 photoreduction with selectivity modulation

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

1 Scopus Citations
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Author(s)

  • Yi Han
  • Wen Li
  • Chuanzhou Bi
  • Jinyuan Liu
  • Hangmin Xu
  • Hao Song
  • Kang Zhong
  • Jinman Yang
  • Weiyi Jiang
  • Jianjian Yi
  • Bin Wang
  • Penghui Ding
  • Hui Xu
  • Xingwang Zhu

Detail(s)

Original languageEnglish
Pages (from-to)348-356
Journal / PublicationJournal of Colloid and Interface Science
Volume670
Online published8 May 2024
Publication statusPublished - 15 Sept 2024

Link(s)

Abstract

The depressed directional separation of photogenerated carriers and weak CO2 adsorption/activation activity are the main factors hampering the development of artificial photosynthesis. Herein, Na ions are embedded in graphitic carbon nitride (g-C3N4) to achieve directional migration of the photogenerated electrons to Na sites, while the electron-rich Na sites enhance CO2 adsorption and activation. Na/g-C3N4 (NaCN) shows improved photocatalytic reduction activity of CO2 to CO and CH4, and under simulated sunlight irradiation, the CO yield of NaCN synthesized by embedding Na at 550°C (NaCN-550) is 371.2 μmol g−1 h−1, which is 58.9 times more than that of the monomer g-C3N4. By means of theoretical calculations and experiments including in situ fourier transform infrared spectroscopy, the mechanism is investigated. This strategy which improves carrier separation and reduces the energy barrier at the same time is important to the development of artificial photosynthesis. © 2024 The Author(s)

Research Area(s)

  • Carrier separation, CO2 reduction, g-C3N4, Ion intercalation, Photocatalysts

Citation Format(s)

Na-mediated carbon nitride realizing CO2 photoreduction with selectivity modulation. / Han, Yi; Li, Wen; Bi, Chuanzhou et al.
In: Journal of Colloid and Interface Science, Vol. 670, 15.09.2024, p. 348-356.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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