journal6 ›› 2001, Vol. 22 ›› Issue (2): 54-57.

• 博士论坛 • 上一篇    下一篇

TiO2光催化法去除饮用水中的有机卤代物

  

  1. ( 1.河北大学化学系,河北 保定 071002; 2. 四平市南湖技术开发研究所,吉林 四平 136000)
  • 出版日期:2001-06-15 发布日期:2013-01-05
  • 作者简介:鲁秀国( 1964- ) ,男, 吉林农安人,河北大学副教授, 工学博士, 主要从事环境污染与防治的研究.

Photocatalysis Removal of Halogenated Compound in Drinking Water

  1. ( 1. Department of Chemistry, Hebei University, Baoding 071002, Hebei China; 2. Siping Nanhu Institute of Technology, Siping 136000, Jilin China)
  • Online:2001-06-15 Published:2013-01-05

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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 100 g/ L的 50 ml 废水,当催化剂的用量为 0. 4 g, 光照时间 3. 0 h,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: ln C= - 0. 75 t+ 4. 30.

关键词： 二氧化钛( TiO2) , 光催化, 有机卤代物

Abstract: The dringing wa ter including halogenated compound, such as CHCl3, has been handled by photocatalys t : the powder of TiO2.The optimum photo removal condi t ions are as fol lows: the mas s c oncentration of CHCl3 is 100 g/ L and its Volume is 50 ml, the quanti ty of eatalyst is 0. 4 g, the time of photo radiation is 3. 0 h, the acidi ty of the aqueous solut ion is 1 *10- 9 mol/ L [ H+] , the photo removal ratio of CHCl3 is over 95. 0%. At the same time, the mechanism of photocatalytic conversion of CHCl3 has been preliminari ly probed, and i t is proved that TiO2 photo removal of CHCl3 follows the formula of one - order reaction rate: ln C= - 0. 75t+ 4. 30.

Key words:  , titanium(TiO2) , photocatalysis, halogenated compound

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