纳米TiO_2用于甲基橙溶液的光催化氧化研究 |
| |
引用本文: | 弓晓峰,刘春英,祝林慧. 纳米TiO_2用于甲基橙溶液的光催化氧化研究[J]. 光散射学报, 2003, 15(1): 32-37 |
| |
作者姓名: | 弓晓峰 刘春英 祝林慧 |
| |
作者单位: | 南昌大学环境与化学工程学院,南昌,330029 |
| |
基金项目: | 教育部高校骨干教师资助计划,1965, |
| |
摘 要: | 本实验采用纳米级的二氧化钛,对甲基橙溶液进行了紫外光催化氧化处理,探讨了pH的影响和添加Fe3+的效果及反应动力学方程,结果表明,采用UV/O3/TiO2工艺对其进行处理,pH4-5时,10W紫外灯光照60min,CODcr去除率达84%,脱色率达96%以上。添加Fe3+,对溶液的催化降解速度提高不明显。动力学研究表明,CODcr降解速度对CODcr的浓度为一级反应。
|
关 键 词: | 纳米TiO2 光催化氧化 甲基橙溶液 动力学方程 |
文章编号: | 1004-5929(2003)01-0032-06 |
收稿时间: | 2002-10-18 |
修稿时间: | 2002-10-18 |
Study on Photocatalytic Oxidation of Methyl Orange in Water By Using Nanometer Titanium Dioxide |
| |
Abstract: | The treatments on methyl orange in water using the combinatedtechnologies of UV, UV/O3, UV/O3/TiO2 were investigated and compared respectively. The results showed that the technology UV/O3/TiO2 with 10W UV lamp for 60 min was optimum. The rate of CODcr achieved 84% and the solution colore removal was 96%. Moreover, The effection of adding Fe3+ into the solution was not obvious and the kinetic equation was investigated as well. |
| |
Keywords: | Titania Methyl orange Photocatalytic oxidation Kinetics |
本文献已被 CNKI 维普 万方数据 等数据库收录! |
|