Citation: Ke Zhang, Yajing Wei, Linhua Xie, Sha Kang, Fei Li, Chuanyi Wang. Amorphous titanium carbide on N-defective g-C₃N₅ for high-efficiency photocatalytic NO removal[J]. Chinese Chemical Letters, ;2025, 36(3): 110086. doi: 10.1016/j.cclet.2024.110086 shu

Amorphous titanium carbide on N-defective g-C₃N₅ for high-efficiency photocatalytic NO removal

Ke Zhang ^{a, b} ,
Yajing Wei ^a ,
Linhua Xie ^a ,
Sha Kang ^a ,
Fei Li ^a ,
Chuanyi Wang ^{a, *,}

a.
School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
b.
Guangzhou Institute of Industrial Intelligence (GI3), Guangzhou 511458, China

wangchuanyi@sust.edu.cn

Received Date: 11 January 2024
Revised Date: 19 April 2024
Accepted Date: 3 June 2024
Available Online: 4 June 2024

Figures(6)

Photocatalytic NO removal is regarded as an attractive strategy to reduce NO pollution in the air, but the lack of efficient and stable catalysts impedes its applications. Herein, we report on developing Ti₃C₂ supported on N-defective g-C₃N₅ nanosheets (CN_X/TC) as an efficient photocatalyst toward NO removal. It is noteworthy that TC changed from crystal structure to amorphous structure during the photocatalytic process. Due to the existence of N vacancies and amorphous structure, the designed CN_X/TC composites possess abundant unsaturated sites for adsorption and activation of O₂ and NO, thus facilitating the removal of NO and inhibiting the generation of NO₂. The as-prepared CN_X/TC-2% shows the best activity for NO removal and inhibits toxic NO₂ generation. The removal rate of NO is up to 48%, which is about 2 and 4 times higher than those of pure CN_X and CN, respectively. In addition, the in situ diffused reflection Fourier transform infrared spectroscopy was used to investigate the NO transfer pathway during the photocatalytic process. This work might provide new insights into the catalytic role of N-defect and amorphous, inspiring the rational design of catalysts in the field of photocatalytic NO removal.
- Photocatalysis,
- NO removal,
- G-C₃N₅,
- Ti₃C₂,
- Amorphous
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Amorphous titanium carbide on N-defective g-C3N5 for high-efficiency photocatalytic NO removal

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通讯作者: 陈斌, bchen63@163.com

Amorphous titanium carbide on N-defective g-C₃N₅ for high-efficiency photocatalytic NO removal