Abstract: The process of flue gas purification with photocatalytic abatement of nitrogen oxides has become a resource-economical and environment-friendly technology. To develope high-efficient，stable photocatalyst materials plays a crucial role in the photocatalytic process and is the primary step to industrial application. This paper reviews the influencing factors of photocatalytic removal of NOx and addresses the methods to improve catalytic efficiency，based on which，some suggestions are proposed for further study.

摘要： 烟气光催化脱硝技术是面向烟气净化过程的一种环境友好型处理工艺。开发高效稳定的光催化材料是光催化技术大规模应用的关键和基础。本文综述了光催化脱硝技术反应影响因素以及提高光催化脱硝效率的方法，并基于光催化脱硝技术研究的现状，对其研究方向提出建议。