前些天看了一篇光催化文献提到滤去紫外光的方法“The light irradiation system contains a 500W Xe lamp with a jacket filled with flowing and thermostated aqueous NaNO2 solution (1M) between the lamp and the reaction chamber as a filter to block UV light (wavelength < 400 nm) and eliminate the temperature effect.” 还有也看到有用专门的滤光器,至于光源里面有多少紫外光,只知道公认的是太阳光里紫外光占有不到5% 。