摘要
光催化是指一种受光能(一般波长小于387nm的紫外线)激发后产生氧化还原反应的现象。由于光催化可以将有机污染物降解为无机小分子,以及会在光催化涂料表面膜产生超亲水性现象,使得它的表面具有防污自清洁性,在固体表面保洁上具有应用价值。本文在阐述光催化机理以及光催化涂料发展现状的基础上对它在站屋和客运列车保洁上的应用进行了探讨,并对应用中可能出现的问题进行了分析。
The photocatalysis is a redox reaction photoinduced by ultraviolet of wavelength less than 387nm, which can decompose organic pollutant to inorganic organic pollutant and produce super-hydrophilic phenomenon. Thus, the photocatalytic material such as nano-TiO2 can be used as antifouling self-cleaning coating, which have attracted much attention in recent years, and shown valuable application of the cleaning of solid surface. In this paper, by presenting the mechanism and utilization of photoeatalyst, the author explored the feasibility of the application to cleaning of the high speed rail passenger trains and station buildings. Potential issues caused by such application were also discussed.
出处
《铁路节能环保与安全卫生》
2011年第4期214-217,共4页
Railway Energy Saving & Environmental Protection & Occupational Safety and Health
关键词
光催化
防污涂料
高铁
保洁
photocatalyst
antifouling self-cleaning coating
high speed rail
cleaning
