Advances in ferroelectric and piezoelectric photocatalysts with oxygen vacancy

Shuang Zhao; Yiyang Wan; Lu Han; Bochao Tian; Zhongyu Duan; Ruidan Su; Xibao Li

doi:10.1007/s42823-024-00794-2

Advances in ferroelectric and piezoelectric photocatalysts with oxygen vacancy

Carbon Letters
Abbr : Carbon Lett.
2025, 35(1), pp.287~308
DOI : 10.1007/s42823-024-00794-2
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General
Received : April 10, 2024
Accepted : August 13, 2024
Published : March 28, 2025

Shuang Zhao ¹, Yiyang Wan ², Lu Han ¹, Bochao Tian ¹, Zhongyu Duan ¹, Ruidan Su ³, Xibao Li ²

¹University of Science and Technology Liaoning
²Nanchang Hangkong University
³Shanghai Jiao Tong University

Accredited

ABSTRACT

Photocatalysis technology including hydrogen evolution from water splitting, CO2 reduction and N2 conversion to ammonia emerges as a significant approach for energy crisis and environmental pollution. For these conventional semiconductors such as TiO2, ZnO, WO3, CdS and g-C3N4, however, inefficient photoabsorption, rapid recombination of photogenerated carriers, and inadequate surface reactive sites hamper the photoinduced activity and stability. Defect engineering, especially oxygen vacancy, has recently drawn the attention of a number of investigators primarily in connection with its feasibility of regulatability, identifiability and effectiveness. A series of ferroelectric and piezoelectric semiconductors, with internal electric field generated by the polarization, are considered an excellent candidate for replacement of conventional semiconductors, because the observed charge separation ability of those is far from theoretical expectation. With the boost of oxygen vacancy, polarization behavior can be effectively regulated to further improve photocatalytic performance. Related studies based on the above background are the current hotspot of photocatalysis; this paper reviews the latest research progress of ferroelectric and piezoelectric photocatalysts with oxygen vacancy. Starting from the generation of oxygen vacancies, five preparation strategy including ion doping, thermal treatment, chemical reduction, ultraviolet irradiation, and plasma etching are introduced; advanced characterization are summarized in classification of spectroscopy, energy spectrum, electron microscopy, density function theory and in situ techniques. Secondly, the mechanism of oxygen vacancy regulated polarization and their synergistic photocatalytic reactions are reviewed and summarized. Finally, an overview on the prospect of advanced photocatalytic engineering concerned to oxygen vacancies involved ferroelectric and piezoelectric photocatalysts is proposed.

KEYWORDS

Photocatalysis, Oxygen vacancy, Ferroelectric semiconductor, Piezoelectric semiconductor, Carrier separation

Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2026-07-09)

Total Citation Counts(KCI+WOS) (12) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

* References for papers published after 2025 are currently being built.

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Carbon Letters 2025 KCI Impact Factor : 0.73 KCI-WoS Impact Factor : 6.26

Advances in ferroelectric and piezoelectric photocatalysts with oxygen vacancy

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Carbon Letters 2025 KCI Impact Factor : 0.73 KCI-WoS Impact Factor : 6.26

Advances in ferroelectric and piezoelectric photocatalysts with oxygen vacancy

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2026-07-09)

* References for papers published after 2025 are currently being built.