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2D/2D composites based on graphitic carbon nitride and MXenes for photocatalytic reactions: a critical review KCI 등재

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Carbon Letters (Carbon letters)
한국탄소학회 (Korean Carbon Society)
초록

The combination of the two-dimensional (2D) materials g-C3N4 and MXenes in photocatalysis offers several advantages. The g-C3N4 can serve as a visible light-absorbing material, while MXenes can enhance the charge separation and transfer processes leading to improved photocatalytic efficiency. A critical review of 77 already published articles in the field of photocatalytic reactions using g-C3N4 and MXenes, such as hydrogen evolution, the reduction of carbon dioxide, the degradation of organic compounds, the redox reactions of nitrogen, was conducted. For the purpose of greater objectivity, the published results were analysed by non-parametric Mann–Whitney, Kolmogorov–Smirnov, and Mood´s median tests and visualised by box and whisker plots. It was found that MXenes can significantly improve the photocatalytic activity of g-C3N4. Adding other co-catalysts to the MXene/g-C3N4 composites does not bring a significant improvement in the photocatalytic performance. Promising results were obtained especially in the fields of hydrogen evolution and the reduction of carbon dioxide. Since the MXenes are relatively a new class of materials, there is still a big challenge for finding new photocatalytic applications and for the enhancement of existing photocatalytic systems based on g-C3N4, especially in terms of the MXenes and g-C3N4 surface and in the heterojunction engineering.

목차
2D2D composites based on graphitic carbon nitride and MXenes for photocatalytic reactions: a critical review
    Abstract
    1 Introduction
    2 A review of literature data
    3 Hydrogen evolution reaction
        3.1 The quantum efficiency of HER
        3.2 The performance of HER
    4 The degradation of the organic compounds
        4.1 The performance of the organic compound degradation
    5 The reduction of carbon dioxide
        5.1 The performance of the CO2 reduction
    6 The redox reactions of nitrogen
        6.1 Nitrogen reduction reaction
        6.2 NO oxidation reaction
    7 Miscellaneous
    8 Conclusion
    Acknowledgements 
    References
저자
  • Petr Praus(Department of Chemistry and Physico‑Chemical Processes, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. Listopadu 15, 708 00 Ostrava‑Poruba, Czech Republic, Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. Listopadu 15, 708 00 Ostrava‑Poruba, Czech Republic) Corresponding author