光化学法是臭氧的生成方法之一。实际上在自然界中存在的臭氧大多是由光化学法生成的,这部分臭氧存在于我们地球大气层的最外层,即人们所经常提到的“臭氧层”中。同时臭氧层又具有保护地球上的生物免受太阳的紫外线辐射伤害的作用。那么臭氧和紫外线之间究竟是怎样的一种“相生又相克”的关系呢? 波长低于200纳米的紫外线又称为短波紫外线。短波紫外线能够将大气中的氧分子(O_2)转化成臭氧分子(O_3),这一能力在184纳米波长处达到峰值。转化的过程是一种动态平衡的过程,平衡时的臭氧浓度与空气所受到的紫外线的照度有关。而波长大于200纳米的紫外线能够将大气中的臭氧分子(O_3)转化成氧分子(O_2)。这两种转化都是以消耗掉紫外线的光子能量为代价的,也正因为如此,大气层中的臭氧层才能对生物起到保护作 Photochemical method is one of the generation of ozone. In fact, most of the ozone that exists in nature is generated by photochemical methods. This part of ozone exists in the outermost layer of our Earth’s atmosphere, which is often referred to as the “ozone layer.” At the same time, the ozone layer also plays a role in protecting the living creatures on the earth from ultraviolet radiation from the sun. So what is the relationship between ozone and ultraviolet light? What is the relationship between the phase and the phase? The UV wavelengths below 200 nm are also called UVA. Shortwave ultraviolet light can convert atmospheric oxygen (O 2) molecules into ozone molecules (O 3), a capability that peaks at a wavelength of 184 nanometers. The process of conversion is a dynamic equilibrium process. The concentration of ozone in the equilibrium is related to the illumination intensity of the ultraviolet light to which the air is exposed. Ultraviolet light with a wavelength greater than 200 nm can convert ozone molecules (O 3) in the atmosphere into oxygen molecules (O 2). Both of these transformations are at the expense of depleting the energy of ultraviolet photons, and as such, the ozone layer in the atmosphere can protect the creature