Volume 4, Issue 8 1900449
Communication

Cerium-Based Metal–Organic Frameworks with UiO Architecture for Visible Light-Induced Aerobic Oxidation of Benzyl Alcohol

Xueying Qiu

Xueying Qiu

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150080 China

CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190 China

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Yanfei Zhu

Yanfei Zhu

CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190 China

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Xiaofei Zhang

Xiaofei Zhang

CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190 China

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Yin Zhang

Yin Zhang

CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190 China

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Leta Takele Menisa

Leta Takele Menisa

CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190 China

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Chonghan Xia

Chonghan Xia

CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190 China

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Shaoqin Liu

Corresponding Author

Shaoqin Liu

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150080 China

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Zhiyong Tang

Corresponding Author

Zhiyong Tang

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150080 China

CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190 China

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First published: 29 November 2019
Citations: 60

Abstract

Metal–organic frameworks (MOFs), a new fascinating class of photocatalysts, have attracted considerable interest in the past few years. Unfortunately, the photocatalytic activities of most pristine MOFs are limited by their intrinsic drawbacks such as limited visible light absorption and poor charge separation efficiency. Herein, a series of Ce-UiOs are constructed through metal substitution and ligand modification, and their photocatalytic properties are studied systematically. Due to the low-lying empty 4f orbitals of Ce, the light absorption range of as-prepared Ce-UiO MOFs is extended to the visible light region. Moreover, their negative ligand-to-metal charge transfer energy (ELMCT) facilitates the separation of charge carriers, which leads to the efficient visible light oxidation of benzyl alcohol. The possible reaction mechanism is validated by electrochemical test and photoluminescence spectroscopy. This work provides an entire new set of Ce-MOFs-based photocatalysts for future important inorganic reactions.

Conflict of Interest

The authors declare no conflict of interest.

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