阐述了挥发性有机物(VOCs)光催化降解的基本原理,分析了气相条件下不同VOCs的降解途径以及O_2和H_2O在光催化反应中的作用、光催化反应过程的传质和动力学规律,提出了反应器设计需要遵循的基本原则,叙述了VOCs光催化降解的催化剂及其失活现象、已研究的VOCs的光催化降解效率、部分物质难光催化降解的原因,讨论了VOCs光催化降解进一步研究的方向和应用前景。 The basic principles of photocatalytic degradation of volatile organic compounds (VOCs) were described. The degradation pathway of different VOCs under gas phase conditions, the role of O_2 and H_2O in photocatalytic reaction, the mass transfer and kinetics of photocatalytic reaction were analyzed. The basic principles to be followed in reactor design are described. The photocatalytic degradation of VOCs and their deactivation are described. The photocatalytic degradation efficiency of VOCs studied and the reasons for some photocatalytic degradation are discussed. The photocatalytic degradation of VOCs is discussed Research direction and application prospect.