Abstract: It is an effective way to enhance the photocatalytic activity by fabricating some defects such as oxygen vacancy into WO₃ lattice to make nonstoichiometric WO_3-x. This paper firstly describes the mechanism of the effect of oxygen vacancy on the photocatalytic activity of WO₃, and then, reviews the influence of the localized surface plasmon resonance (LSPR) effect and the synergistic effects of noble metal/carbon containing materials, and oxygen vacancy. Finally, prospectsing and challenging of WO3-x application in the field of photocatalysis are discussed in the end of this work.

Key words: WO3, Oxygen vacancy, Localized surface plasmon resonance (LSPR, Synergistic effects

摘要： 在 WO3晶格中引入氧空位等缺陷，形成非化学计量比的氧化钨（WO3-x），是增强 WO3光催化活性的一种有效方法。首先综述了氧空位对 WO3光催化活性的影响机制，然后探讨了局域表面等离子共振（LSPR）效应及贵金属/含碳材料与氧空位协同效应对其光催化活性的影响，最后对 WO3-x在光催化领域应用中存在的挑战进行了展望。

关键词: WO3, 氧空位, 局域表面等离子共振效应, 协同效应