| TiO2光催化氧化机动车排放污染物的影响因素 |
| |
| 引用本文： | 陈萌,韩相春,尤铁学.TiO2光催化氧化机动车排放污染物的影响因素[J].东北林业大学学报,2006,34(6):70-71,79. |
| |
| 作者姓名： | 陈萌 韩相春 尤铁学 |
| |
| 作者单位： | 东北林业大学,哈尔滨,150040;东北林业大学,哈尔滨,150040;东北林业大学,哈尔滨,150040 |
| |
| 摘 要： | 研究了NO2的自光解、光强、污染物起始质量浓度和反应环境温、湿度等因素对TiO2的光催化氧化效果,结果表明,NO2的自光解伴随着TiO2光催化氧化而同时发生,其转化率明显小于TiO2光催化氧化率。在同等条件下TiO2光催化氧化率随光强的增强而增加,随污染物起始质量浓度的增大而减小。环境温、湿度对TiO2光催化氧化影响较为复杂,在一定条件下,温度具有最佳使用范围,而湿度环境既可促进TiO2光催化氧化率,同时也可抑制其转化率。
|
| 关 键 词： | TiO2 光催化氧化 氮氧化物 |
| 收稿时间： | 2006-07-14 |
| 修稿时间： | 2006-07-14 |
Influencing Factors of TiO2 Photocatalytic Oxidation on Pollutant Dispersion of Motor Vehicle |
| |
| Chen Meng,Han Xiangchun,You Tiexue.Influencing Factors of TiO2 Photocatalytic Oxidation on Pollutant Dispersion of Motor Vehicle[J].Journal of Northeast Forestry University,2006,34(6):70-71,79. |
| |
| Authors: | Chen Meng Han Xiangchun You Tiexue |
| |
| Institution: | Northeast Forestry University, Harbin 150040, P. R. China |
| |
| Abstract: | Effects of NO_2 self-photolysis, radiation intensity, initial concentration of pollutant, reaction temperature, and humidity on TiO_2 photocatalytic oxidation were studied. Result showed that NO_2 self-photolysis is simultaneous with TiO_2 photocatalytic oxidation, and the efficiency of NO_2 self-photolysis is distinctly lower than TiO_2 photocatalytic oxidation rate. TiO_2 photocatalytic oxidation rate increases with increasing radiation intensity and decreases with increasing initial concentration of pollutant under the same conditions. Temperature has an optimal range, and humidity can improve or inhibit TiO_2 photocatalytic oxidation rate under certain conditions. |
| |
| Keywords: | TiO_2 Photocatalytic oxidation Nitrogen oxides |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
