【摘要】 设计了能产生波长小于200 nm的真空紫外光化学反应器,通过工作气体氮气进行光强标定表明,其主要产生109 nm,120 nm,149 nm,174 nm波长的光(N原子谱线)。首次在该光化学反应器中进行了CO2光解反应的研究,实验结果表明该实验条件下CO2光解后生成产物CO,当光源电流300 mA时,生成CO的相对量与光源内工作气体的真空度相关。提出了光化学反应器设计时存在的问题、影响因素及考虑因素,为光化学反应器设计放大和操作条件优化提供实验依据和理论思路。更多还原

【Abstract】 The vacuum ultraviolet（VUV）photochemical reactor had been designed to produce spectrum which was mainly less than 200 nm in the wavelength range.Atomic spectrum intensity of VUV source was measured by a priorcalibrated VUV spectral detecting system with N₂ chosen as（luminescence） gas.It was found that the main atomic lines wavelength of luminescence gas was（109 nm,）120 nm,149 nm and 174 nm.CO₂ photolysis reaction had been first studied by VUV（photochemical） reactor.Experimental results showed that CO₂ was photolyzed into CO and its amount depended on luminescence gas vacuum of VUV source under 300 mA constant electric current.更多还原