This paper presents a comprehensive review on the most recent level of knowledge and developments achieved in utilizing photocatalytic asphalt pavement as a method to reduce vehicle pollutants. It included the mechanism of photocatalysis, available testing facilities, quantifying methods, widely studied techniques of applying TiO₂ particles onto asphalt pavements, influencing factors on pollutants degradation and future perspectives. Nano-TiO₂ crystal types, doping approach, ambient temperature, relative humidity, intensity and time of irradiation, and pollutant characteristics are the key factors that influence the efficiency and durability of photocatalytic asphalt pavement. The photocatalytic asphalt pavement can achieve a degradation efficiency of 55% for NOx pollutants and 20% for SO₂ pollutants at this moment, while suffering from short service life due to busy traffics and complex weather circumstances. In the future perspectives of photocatalytic asphalt pavement, practical costs, applying methods, durability, and negative effects are highly emphasized for the development of sustainable and durable photocatalytic roads.

本文全面回顾了利用光催化沥青路面作为减少车辆污染物的方法的最新知识水平和取得的进展。它包括光催化机理、可用的测试设备、量化方法、广泛研究的将TiO ₂颗粒应用于沥青路面的技术、污染物降解的影响因素和未来展望。纳米二_氧化钛晶体类型、掺杂方式、环境温度、相对湿度、辐照强度和时间以及污染物特性是影响光催化沥青路面效率和耐久性的关键因素。光催化沥青路面此时对NOx污染物的降解效率为55%，对SO ₂污染物的降解效率为20%，但由于交通繁忙、天气条件复杂，使用寿命较短。在光催化沥青路面的未来前景中，实际成本、应用方法、耐久性和负面影响被高度重视，以开发可持续和耐久的光催化道路。