Issue 13, 2020
From the journal:

Catalysis Science & Technology

Twin engineering of photocatalysts: a minireview

Shaodong Sun, ORCID logo *a   Xiaochuan Zhang,a   Jie Cui,a   Qing Yanga  and  Shuhua Liang*a  

* Corresponding authors

a Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Shaanxi Engineering Research Center of Metal-based Heterogeneous Materials and Advanced Manufacturing Technology, Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, Shaanxi, People's Republic of China
E-mail: sdsun@xaut.edu.cn, liangsh@xaut.edu.cn

Abstract

Twin crystals with highly ordered atomic arrangement can not only promote the transport of free charge carriers (electrons and holes) inside a single crystalline photocatalyst, but also limit the recombination of photoexcited charge carriers owing to their self-building electrostatic field. Hence, the investigations on twin-dependent photocatalytic performances of crystalline micro-/nanostructures have received much attention in recent years. However, there is still no specialized review article on twin engineering of photocatalysts so far. Herein, the existing twinned micro-/nanostructures, mainly including metal sulfides and metal oxides, are overviewed on the basis of the synthesis engineering, transmission electron microscopy (TEM) characterization and twin-dependent photocatalytic mechanism. Some challenging issues and future directions are also discussed. Expectantly, this minireview would serve as a theoretical guidance for people who are now focusing on twin crystals to design and synthesize novel photocatalysts.

Graphical abstract: Twin engineering of photocatalysts: a minireview

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Article information

DOI
https://doi.org/10.1039/D0CY00917B
Article type
Minireview
Submitted
06 May 2020
Accepted
25 May 2020
First published
25 May 2020

Catal. Sci. Technol., 2020,10, 4164-4178

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Twin engineering of photocatalysts: a minireview

S. Sun, X. Zhang, J. Cui, Q. Yang and S. Liang, Catal. Sci. Technol., 2020, 10, 4164 DOI: 10.1039/D0CY00917B

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