Abstract: The combination of the process of TiO2 photocatalytic oxidation with microwave，ultrasound，electric field，magnetic field，thermal catalysis，nonthermal plasma and thermal catalysis is a new effective method to improve photocatalytic activity of TiO2. In this paper，the mechanisms of synergistic effect of external field assisted catalysis are discussed，and the research development on degradation of organic compounds is summarized. Finally，application prospects and the research directions in the field of environmental protection are presented.

摘要： 介绍了微波场、超生波场、电场、磁场、低温等离子体、热场等外加场辅助TiO2光催化降解有机物的反应机理及降解有机污染物方面的研究进展；讨论了外加“场”在环境治理方面的应用前景和发展方向。