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Mini Review

Single metal atom decorated photocatalysts: Progress and challenges

Lei Zeng, Can Xue( )
School of materials science and engineering, Nanyang Technological University, 50 Nanyang avenue, Singapore 639798, Singapore
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Abstract

Photocatalysis has attracted intense attention due to its potential to solve the energy resource problem and environmental issues. The single metal atom decorated photocatalysts as a rising star become more and more popular because of the unique advantages of superior catalytic activities and ultrahigh atom utilization efficiency. The key function of single metal atom catalysts in photocatalytic reactions is boosting surface redox reactions by utilizing photogenerated charges, and has been verified by various spectroscopic and microscopic techniques. Nevertheless, the activities of the single metal atoms highly depend on the binding environment in the host photocatalyst that affect the adsorption and activation of reactants as well as the reaction energy barrier. Herein, this mini review summarizes recent progress on single metal atom decorated photocatalysts, and discusses the roles of the single metal atom catalysts in different types of host photocatalysts including organic, carbon-based and inorganic materials. The remaining challenges and future perspectives on the stability and activities of single atom catalysts in photocatalytic processes are elaborated in the end. We believe that this mini review will provide valuable overview on synthetic methods of different single atom photocatalysts for researchers towards future development of highly efficient photocatalysts.

Keywords

photocatalysishydrogen generationCO2 reductionartificial photosynthesissolar fuelssolar energy conversion

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Nano Research
Volume 14 Issue 4,
April 2021
Pages 934-944
DOI: 10.1007/s12274-020-3099-8
Cite this article:
Zeng L, Xue C. Single metal atom decorated photocatalysts: Progress and challenges. Nano Research, 2021, 14(4): 934-944. https://doi.org/10.1007/s12274-020-3099-8
Topics:
Catalyst activityEnergy resources MetalsPhotocatalystsPhotocatalytic activity Redox reactions

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Received: 21 July 2020
Revised: 02 September 2020
Accepted: 07 September 2020
Published: 01 October 2020
© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature
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