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Three‐in‐One Oxygen Vacancies: Whole Visible‐Spectrum Absorption, Efficient Charge Separation, and Surface Site Activation for Robust CO2 Photoreduction

Yu, Hongjian, Li, Jieyuan, Zhang, Yihe, Yang, Songqiu, Han, Keli, Dong, Fan, Ma, Tianyi, Huang, Hongwei·2019·Angewandte Chemie International Edition

Abstract

A facile and controllable in situ reduction strategy is used to create surface oxygen vacancies (OVs) on Aurivillius‐phase Sr 2 Bi 2 Nb 2 TiO 12 nanosheets, which were prepared by a mineralizer‐assisted soft‐chemical method. Introduction of OVs on the surface of Sr 2 Bi 2 Nb 2 TiO 12 extends photoresponse to cover the whole visible region and also tremendously promotes separation of photoinduced charge carriers. Adsorption and activation of CO 2 molecules on the surface of the catalyst are greatly enhanced. In the gas‐solid reaction system without co‐catalysts or sacrificial agents, OVs‐abundant Sr 2 Bi 2 Nb 2 TiO 12 nanosheets show outstanding CO 2 photoreduction activity, producing CO with a rate of 17.11 μmol g−1 h−1, about 58 times higher than that of the bulk counterpart, surpassing most previously reported state‐of‐the‐art photocatalysts. Our study provides a three‐in‐one integrated solution to advance the performance of photocatalysts for solar‐energy conversion and generation of renewable energy.

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Metadata

Authors
Yu, H., Li, J., Zhang, Y., Yang, S., Han, K., Dong, F., Ma, T., & Huang, H.
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2019-01-29
Volume
58
Issue
12
Pages
3880-3884
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
OpenAlex
W2908416385
Cited by
657
References
23
FWCI
20.20
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Three‐in‐One Oxygen Vacancies: Whole Visible‐Spectrum Absorption, Efficient Charge Separation, and Surface Site Activation for Robust CO2 Photoreduction. https://app.cochat.ai/papers/10.1002/anie.201813967
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Yu, H., Li, J., Zhang, Y., Yang, S., Han, K., Dong, F., Ma, T., & Huang, H. (2019). Three‐in‐One Oxygen Vacancies: Whole Visible‐Spectrum Absorption, Efficient Charge Separation, and Surface Site Activation for Robust CO2 Photoreduction. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201813967

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