| TiO_2光催化法去除饮用水中的有机卤代物 |
| |
| 引用本文： | 鲁秀国,刘汉东.TiO_2光催化法去除饮用水中的有机卤代物[J].吉首大学学报(自然科学版),2001(2). |
| |
| 作者姓名： | 鲁秀国 刘汉东 |
| |
| 作者单位： | 河北大学化学系!河北保定071002(鲁秀国)，四平市南湖技术开发研究所!吉林四平136000(刘汉东) |
| |
| 摘 要： | 利用自制TiO2 光催化剂 ,对饮用水中常见的氯消毒副产物三氯甲烷等有机卤代物进行了光催化去除研究 ,实验表明 ,对于三氯甲烷浓度为 10 0 μg/L的 5 0ml废水 ,当催化剂的用量为 0 .4g ,光照时间 3.0h ,溶液中H+ 的浓度为 1×10 -9mol/L时 ,三氯甲烷的光催化去除率达 95 .0 %以上 .同时对光催化去除三氯甲烷的机理进行了探讨 ,证明了三氯甲烷的TiO2 光催化去除反应遵循一级反应速率公式 :lnC =- 0 .75t+4 .30 .
|
| 关 键 词： | 二氧化钛(TiO2) 光催化 有机卤代物 |
Photocatalysis Removal of Halogenated Compound in Drinking Water |
| |
| LU Xiu guo ,LIU Han dong.Photocatalysis Removal of Halogenated Compound in Drinking Water[J].Journal of Jishou University(Natural Science Edition),2001(2). |
| |
| Authors: | LU Xiu guo LIU Han dong |
| |
| Institution: | LU Xiu guo 1,LIU Han dong 2 |
| |
| Abstract: | The dringing water including halogenated compound,such as CHCl 3,has been handled by photocatalyst:the powder of TiO 2.The optimum photo removal conditions are as follows:the mass concentration of CHCl 3 is 100 μg/L and its Volume is 50 ml,the quantity of eatalyst is 0.4 g,the time of photo radiation is 3.0 h,the acidity of the aqueous solution is 1×10 -9 mol/L H +],the photo removal ratio of CHCl 3 is over 95.0%.At the same time,the mechanism of photocatalytic conversion of CHCl 3 has been preliminarily probed,and it is proved that TiO 2 photo removal of CHCl 3 follows the formula of one -order reaction rate: ln C =-0.75 t +4.30. |
| |
| Keywords: | titanium(TiO 2) photocatalysis halogenated compound |
| 本文献已被 CNKI 等数据库收录！ |
|
