摘要
以甲醛为例,介绍了光化学反应、吸附作用和光催化氧化作用对挥发性有机化合物降解过程的作用机理;通过实验数据比较了以上三种作用对甲醛的降解效果;肯定了光催化氧化作用对甲醛降解的高效性;证明了将纳米半导体TiO2覆膜于普通滤料上,消除挥发性有机化合物以提高室内空气品质是完全可行的。
Taking formaldehyde as example, degradation mechanisms of photochemistry reaction, adsorption and Photo-Catalytic Oxidation （PCO） on Volatile Organic Compounds （VOCs） are presented respectively. The influences of three aspects mentioned above are compared by a serial of experimental data. The high efficiency of heterogeneous PCO on the degradation of formaldehyde is assured in this paper. The complete feasibility of covering filters with nanometer semi-conductive TiO2 thin film to eliminate VOCs in order to improve indoor air quality is affirmed, which symbolizes that the air-purifying technology has stridden into a new development period.
出处
《建筑热能通风空调》
2007年第2期71-73,77,共4页
Building Energy & Environment
