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。
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.
出处
《光散射学报》
2003年第1期32-37,共6页
The Journal of Light Scattering
基金
国家教育部<高等学校骨干教师资助计划>资助 编号 :1 96 5
