广西师范大学学报（自然科学版） ›› 2023, Vol. 41 ›› Issue (4): 12-24.doi: 10.16088/j.issn.1001-6600.2022040405

• 综述 • 上一篇    下一篇

基于α-Fe2O3的Z型异质结光催化剂研究进展

陈付坤, 陈星星*   

  1. 辽宁科技大学化学工程学院, 辽宁鞍山 114051
  • 收稿日期:2022-04-04 修回日期:2022-06-26 出版日期:2023-07-25 发布日期:2023-09-06
  • 通讯作者: 陈星星(1979—),女,辽宁鞍山人,辽宁科技大学教授,博导。E-mail:xingchenstar79@163.com
  • 基金资助:
    辽宁省“百千万人才工程”科技活动项目(2019B042);辽宁省教育厅优秀科技人才项目(2020LNQN07)

Research Progress of α-Fe2O3-Based Z-Scheme Heterojunction Photocatalysts

CHEN Fukun, CHEN Xingxing*   

  1. School of Chemical Engineering, University of Science and Technology Liaoning, Anshan Liaoning 114051, China
  • Received:2022-04-04 Revised:2022-06-26 Online:2023-07-25 Published:2023-09-06

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摘要： 基于2种及以上半导体材料合理构建异质结构,可以整合多种组分的优势,促进光生载流子分离,扩大光吸收范围并保留光催化剂的高氧化还原能力,在太阳能利用和转换过程中有巨大的潜在应用。赤铁矿(hematite, α-Fe2O3)具有含量丰富、带隙合适和理论析氢效率高等多种优点,α-Fe2O3异质结构的构建一直是重要的研究方向。本文首先简要概述了光催化机理和异质结类型,尤其着重介绍了具有独特的光生载流子流动途径和优异光催化性能的Z型异质结;接着系统评述了近年来基于α-Fe2O3构建Z型异质结系统的热门光催化材料,并对未来有待进一步研究和解决的科学研究方向做一展望。

关键词: 光催化剂, 赤铁矿, 光催化机理, 异质结类型, α-Fe2O3基Z型异质结系统

Abstract: The rational construction of heterostructures based on two or more semiconductor materials can integrate the advantages of multiple components, promote the separation of photogenerated carriers, expand the range of light absorption and retain the high redox capacity of photocatalysts, which have great potential applications as photoelectrodes in the process of solar energy utilization and conversion. Due to various advantages of hematite (α-Fe2O3) such as abundant content, suitable bandgap and high theoretical hydrogen evolution efficiency, the construction of heterogeneous structures based on α-Fe2O3 has become an important research area. In this review, the basics of photocatalytic mechanism and heterojunctions are briefly introduced, then, Z-scheme heterojunctions that exhibit unique photogenerated carrier flow pathways and excellent photocatalytic performance is specifically described. Finally, after the systematic review of state-of-the-art Z-scheme heterojunction materials based on α-Fe2O3 in recent years, some emerging agenda are outlined for future oriented research.

Key words: photocatalyst, hematite, photocatalytic mechanism, heterojunction type, α-Fe2O3-based Z-scheme heterojunction system

中图分类号:  O643.36; O644.1

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