Liu Lizhen, Huang Hongwei
Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China.
Chemistry. 2022 Mar 16;28(16):e202103975. doi: 10.1002/chem.202103975. Epub 2022 Jan 20.
The rapid development of industrialization and population has brought water, air-pollution and energy crises. Solar-driven catalysis is expected to relieve these issues. However, limited by poor light harvesting, serious charge recombination of semiconductors, and high surface reaction barriers, the low efficiency of solar conversion is far from satisfactory for industrial needs. Ferroelectrics are considered to be promising photocatalysts to overcome these shortcomings. Herein, perovskite ferroelectrics such as BaTiO , PbTiO , BiFeO and LiNbO , layered bismuth-based ferroelectrics like Bi WO and Bi MoO , and other ferroelectrics are introduced, and their crystal structure, polarity source and synthetic method are highlighted. Subsequently, research progress in ferroelectrics for photocatalysis is summarized, including pollution degradation, water splitting and CO reduction. Finally, the current challenges and future prospects of ferroelectric photocatalysts are provided. The purpose of this review is not only to provide a timely summary for the application of ferroelectrics in photocatalysis, but also to present deep insight and a guideline for future research work into ferroelectrics.
工业化和人口的快速发展带来了水、空气污染和能源危机。太阳能驱动催化有望缓解这些问题。然而，受限于光捕获能力差、半导体严重的电荷复合以及高表面反应势垒，太阳能转换效率低下，远不能满足工业需求。铁电体被认为是克服这些缺点的有前途的光催化剂。本文介绍了钙钛矿铁电体如BaTiO、PbTiO、BiFeO和LiNbO，层状铋基铁电体如BiWO和BiMoO，以及其他铁电体，并重点介绍了它们的晶体结构、极性来源和合成方法。随后，总结了铁电体在光催化方面的研究进展，包括污染降解、水分解和CO还原。最后，给出了铁电光催化剂当前面临的挑战和未来前景。本综述的目的不仅是及时总结铁电体在光催化中的应用，还为铁电体未来的研究工作提供深入的见解和指导方针。
