Citation: Zhiling Tang, Chujun Wang, Wenjie He, Yuechang Wei, Zhen Zhao, Jian Liu. The Z-scheme g-C₃N₄/3DOM-WO₃ photocatalysts with enhanced activity for CO₂ photoreduction into CO[J]. Chinese Chemical Letters, ;2022, 33(2): 939-942. doi: 10.1016/j.cclet.2021.07.020 shu

The Z-scheme g-C₃N₄/3DOM-WO₃ photocatalysts with enhanced activity for CO₂ photoreduction into CO

Zhiling Tang ^{a, b, 1} ,
Chujun Wang ^{a, 1} ,
Wenjie He ^{a, b} ,
Yuechang Wei ^{a, b, *,} ,
Zhen Zhao ^a ,
Jian Liu ^a

a.
State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
b.
Key Laboratory of Optical Detection Technology for Oil and Gas, China University of Petroleum, Beijing 102249, China

weiyc@cup.edu.cn

Received Date: 21 April 2021
Revised Date: 16 June 2021
Accepted Date: 6 July 2021
Available Online: 13 July 2021

Figures(4)

The catalytic performance of light-derived CO₂ reduction with H₂O is strongly dependent on the separation efficiency of photogenerated carriers. Herein, the direct Z-scheme catalysts (g-C₃N₄/3DOM-WO₃) of graphitic carbon nitride (g-C₃N₄) nanosheets decorated three-dimensional ordered macroporous WO₃ (3DOM-WO₃) were successfully fabricated by using the in-situ colloidal crystal template method. The slow light effect of 3DOM-WO₃ photonic crystals expands the absorption of visible light and improves the utilization of light energy. The Z-scheme structure of g-C₃N₄/3DOM-WO₃ catalysts is able to upgrade the separation efficiency of photogenerated electron-hole pairs. The g-C₃N₄/3DOM-WO₃ photocatalyst, whose formation rate of CO product is 48.7 μmol g⁻¹ h⁻¹, exhibits the excellent catalytic activity for CO₂ reduction. The transfer pathway of stimulated electrons over the g-C₃N₄/3DOM-WO₃ photocatalyst is proposed and discussed. The present approach provides unique insights into the rational development of high-performance photochemical systems for efficient CO₂ reduction into valuable carbon-containing chemicals and energy fuels.
- 3DOM-WO₃,
- g-C₃N₄,
- Z-scheme heterojunction,
- CO₂ conversion,
- Photocatalysis
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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

The Z-scheme g-C3N4/3DOM-WO3 photocatalysts with enhanced activity for CO2 photoreduction into CO

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通讯作者: 陈斌, bchen63@163.com

The Z-scheme g-C₃N₄/3DOM-WO₃ photocatalysts with enhanced activity for CO₂ photoreduction into CO