Air pollution by trace levels of nitric oxide (NO) pollution is threatening human health by causing acid rain and haze pollution through photochemical reactions. Here, we review photocatalytic technologies that use oxygen vacancy engineering-mediated nanomaterials for the control of air pollutants such as NO and nitrogen dioxide. We present oxygen vacancy parameters and reactor regulation mechanisms. We explain the functions of oxygen vacancies in the adsorption and enrichment processes of NO on the photocatalyst surface. We highlight the relationship between oxygen vacancies and O₂ activation in photocatalytic reactions. The mechanisms ruling selectivity in NO photodegradation, and the suppression of photocatalyst deactivation are discussed.

微量一氧化氮 (NO) 污染造成的空气污染通过光化学反应引起酸雨和雾霾污染，从而威胁人类健康。在这里，我们回顾了使用氧空位工程介导的纳米材料来控制空气污染物（如 NO 和二氧化氮）的光催化技术。我们提出了氧空位参数和反应器调节机制。我们解释了氧空位在 NO 在光催化剂表面的吸附和富集过程中的作用。_{我们强调了光催化反应中氧空位和O 2}活化之间的关系。讨论了 NO 光降解选择性的机制，以及光催化剂失活的抑制。