Bi2MoO6 Embedded in 3D Porous N,O-Doped Carbon Nanosheets for Photocatalytic CO2 Reduction

Bai, Xue; He, Lang; Zhang, Wenyuan; Lv, Fei; Zheng, Yayun; Kong, Xirui; Wang, Du; Zhao, Yan

doi:10.3390/nano13091569

Open AccessArticle

Bi₂MoO₆ Embedded in 3D Porous N,O-Doped Carbon Nanosheets for Photocatalytic CO₂ Reduction

by

Xue Bai

^1,†,

Lang He

^1,*,†,

Wenyuan Zhang

²,

Fei Lv

¹,

Yayun Zheng

¹,

Xirui Kong

¹,

Du Wang

^1,*

and

Yan Zhao

^1,*

¹

The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China

²

School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150080, China

^*

Authors to whom correspondence should be addressed.

^†

These authors contributed equally to this work.

Nanomaterials 2023, 13(9), 1569; https://doi.org/10.3390/nano13091569

Submission received: 21 March 2023 / Revised: 26 April 2023 / Accepted: 5 May 2023 / Published: 6 May 2023

(This article belongs to the Special Issue Nanostructured Materials for Carbon Neutrality)

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Abstract

Artificial photosynthesis is promising to convert solar energy and CO₂ into valuable chemicals, and to alleviate the problems of the greenhouse effect and the climate change crisis. Here, we fabricated a novel photocatalyst by directly growing Bi₂MoO₆ nanosheets on three-dimensional (3D) N,O-doped carbon (NO-C). Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) show that the designed photocatalyst ensured the close contact between Bi₂MoO₆ and NO-C, and reduced the stacking of the NO-C layers to provide abundant channels for the diffusion of CO₂, while NO-C can allow for fast electron transfer. The charge transfer in this composite was determined to follow a step-scheme mechanism, which not only facilitates the separation of charge carriers but also retains a strong redox capability. Benefiting from this unique 3D structure and the synergistic effect, BMO/NO-C showed excellent performance in photocatalytic CO₂ reductions. The yields of the best BMO/NO-C catalysts for CH₄ and CO were 9.14 and 14.49 μmol g⁻¹ h⁻¹, respectively. This work provides new insights into constructing step-scheme photocatalytic systems with the 3D nanostructures.

Keywords: CO₂RR; N,O-doped carbon; photocatalysis; Bi₂MoO₆

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MDPI and ACS Style

Bai, X.; He, L.; Zhang, W.; Lv, F.; Zheng, Y.; Kong, X.; Wang, D.; Zhao, Y. Bi₂MoO₆ Embedded in 3D Porous N,O-Doped Carbon Nanosheets for Photocatalytic CO₂ Reduction. Nanomaterials 2023, 13, 1569. https://doi.org/10.3390/nano13091569

AMA Style

Bai X, He L, Zhang W, Lv F, Zheng Y, Kong X, Wang D, Zhao Y. Bi₂MoO₆ Embedded in 3D Porous N,O-Doped Carbon Nanosheets for Photocatalytic CO₂ Reduction. Nanomaterials. 2023; 13(9):1569. https://doi.org/10.3390/nano13091569

Chicago/Turabian Style

Bai, Xue, Lang He, Wenyuan Zhang, Fei Lv, Yayun Zheng, Xirui Kong, Du Wang, and Yan Zhao. 2023. "Bi₂MoO₆ Embedded in 3D Porous N,O-Doped Carbon Nanosheets for Photocatalytic CO₂ Reduction" Nanomaterials 13, no. 9: 1569. https://doi.org/10.3390/nano13091569

APA Style

Bai, X., He, L., Zhang, W., Lv, F., Zheng, Y., Kong, X., Wang, D., & Zhao, Y. (2023). Bi₂MoO₆ Embedded in 3D Porous N,O-Doped Carbon Nanosheets for Photocatalytic CO₂ Reduction. Nanomaterials, 13(9), 1569. https://doi.org/10.3390/nano13091569

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Bi₂MoO₆ Embedded in 3D Porous N,O-Doped Carbon Nanosheets for Photocatalytic CO₂ Reduction

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