CAJ | 학술논문

TiO2光催化技术作为处理气态污染物的一种手段，具有高效、稳定、无二次污染等优点。光催化反应效率的高低受到 TiO2自身性质、光催化反应工艺条件等因素的影响。本文分别从 TiO2晶型、晶粒尺寸、TiO2的存在形态、TiO2的负载、掺杂改性、贵金属沉积等与TiO2材料性质相关的因素以及废气初始浓度与流速、废气中的含氧量、湿度、光源和光照强度、反应温度等光催化反应的工艺条件两方面，概述了目前关于 TiO2光催化净化废气影响因素的研究进展，介绍了 TiO2在气相光催化过程中的失活与再生，并从可见光催化剂的制备应用、多组分污染物气相光催化降解机理及影响因素等方面对未来TiO2光催化研究方向提出建议。
TiO2광최화기술작위처리기태오염물적일충수단，구유고효、은정、무이차오염등우점。광최화반응효솔적고저수도 TiO2자신성질、광최화반응공예조건등인소적영향。본문분별종 TiO2정형、정립척촌、TiO2적존재형태、TiO2적부재、참잡개성、귀금속침적등여TiO2재료성질상관적인소이급폐기초시농도여류속、폐기중적함양량、습도、광원화광조강도、반응온도등광최화반응적공예조건량방면，개술료목전관우 TiO2광최화정화폐기영향인소적연구진전，개소료 TiO2재기상광최화과정중적실활여재생，병종가견광최화제적제비응용、다조분오염물기상광최화강해궤리급영향인소등방면대미래TiO2광최화연구방향제출건의。
TiO2 photocatalytic oxidation has the advantages of high efficiency,stability,and no pollution for gaseous pollutants treatment. Photocatalytic reaction efficiency is affected by the inherent characteristics of TiO2 and photocatalytic reaction conditions. The research progress of the influence factors of TiO2 photocatalytic purification of exhaust gas was summarized from inherent properties (such as crystal type,particle diameter,existence form of TiO2,immobilization,modification by doping,and noble metal deposition) of TiO2 and photocatalytic reaction conditions (such as gas initial concentration,flow rate,oxygen content,light source,light intensity,humidity and reaction temperature). Deactivation and regeneration of TiO2 in the gas phase photocatalytic process were introduced,and future research on TiO2 photocatalytic purification would be focused on preparation and application of visible-light photocatalyst , mechanism of photocatalytic degradation of multicomponent gaseous pollutants and influence factors.