Citation: Ge Yang, Pei Qiu, Jinyan Xiong, Xueteng Zhu, Gang Cheng. Facilely anchoring Cu₂O nanoparticles on mesoporous TiO₂ nanorods for enhanced photocatalytic CO₂ reduction through efficient charge transfer[J]. Chinese Chemical Letters, ;2022, 33(8): 3709-3712. doi: 10.1016/j.cclet.2021.10.047 shu

Facilely anchoring Cu₂O nanoparticles on mesoporous TiO₂ nanorods for enhanced photocatalytic CO₂ reduction through efficient charge transfer

Ge Yang ^a ,
Pei Qiu ^a ,
Jinyan Xiong ^b ,
Xueteng Zhu ^a ,
Gang Cheng ^{a, *,}

a.
School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Donghu New & High Technology Development Zone, Wuhan 430205, China
b.
College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China

gchenglab@163.com

Received Date: 14 August 2021
Revised Date: 15 September 2021
Accepted Date: 18 October 2021
Available Online: 23 October 2021

Figures(5)

Semiconductor-employed photocatalytic CO₂ reduction has been regarded as a promising approach for environmental-friendly conversion of CO₂ into solar fuels. Herein, TiO₂/Cu₂O composite nanorods have been successfully fabricated by a facile chemical reduction method and applied for photocatalytic CO₂ reduction. The composition and structure characterization indicates that the Cu₂O nanoparticles are coupled with TiO₂ nanorods with an intimate contact. Under light illumination, all the TiO₂/Cu₂O composite nanorods enhance the photocatalytic CO₂ reduction. In particular, the TiO₂/Cu₂O-15% sample exhibits the highest CH₄ yield (1.35 µmol g^-1 h^-1) within 4 h irradiation, and it is 3.07 and 15 times higher than that of pristine TiO₂ nanorods and Cu₂O nanoparticles, respectively. The enhanced photoreduction capability of the TiO₂/Cu₂O-15% is attributed to the intimate construction of Cu₂O nanoparticles on TiO₂ nanorods with formed p-n junction to accelerate the separation of photogenerated electron-hole pairs. This work provides a reference for rational design of a p-n heterojunction photocatalyst for CO₂ photoreduction.
- TiO₂/Cu₂O composite,
- Photocatalytic CO₂ reduction,
- Photocatalysis,
- Charge separation,
- p-n Junction
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沈阳化工大学材料科学与工程学院沈阳 110142

Facilely anchoring Cu2O nanoparticles on mesoporous TiO2 nanorods for enhanced photocatalytic CO2 reduction through efficient charge transfer

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通讯作者: 陈斌, bchen63@163.com

Facilely anchoring Cu₂O nanoparticles on mesoporous TiO₂ nanorods for enhanced photocatalytic CO₂ reduction through efficient charge transfer