Photocatalytic Oxidation of NOx with Porous TiO2 Nanometer Thin Film

编号 zgly0000376670

文献类型 期刊论文

文献题名 Photocatalytic Oxidation of NOx with Porous TiO2 Nanometer Thin Film

作者 WANGSong-lin  TIANLi-hong  ZHONGJia-cheng  ZANLing 

作者单位 CollegeofChemistryandMolecularSciences 

母体文献 Wuhan University Journal of Natural Sciences;武汉大学学报: 自然科学英文版 

年卷期 2005,10(2)

页码 431-434

年份 2005 

分类号 X511  X132 

关键词 光催化氧化反应  氮氧化物  水玻璃薄膜  环境保护  二氧化钛  大气污染  薄膜材料 

文摘内容 A new kind of porous nano-TiO2 composite films was prepared on the glass substrate with the water glass as hinders and the sodium fluorosilicate as solidifying reagent. The morphologies of the films were studied by scanning electron microscope(SEM). The UV-Vis spectrophotometer was also used to investigate the absorption of the films. The gasphase photocatalytic oxidation of nitrogen oxides on the composite film was carried out in TiO2 UV system, and some important factors affecting the photocatalytic oxidation were also studied such as the catalyst concentration, vapor pressure and the presence of oxygen. The results showed the conversion of NOx reached 97.5% after 2 h UV-irradiation. The final product of photo-oxidation was detected to be HNO3 hy FT-IR. The way of photocatalytic oxidation of NOx was possibly useful in the practical application。