| 悬浮体系光催化氧化降解直接桃红12R的工艺条件及动力学实验 |
| |
| 引用本文： | 张秀芳,安庆大.悬浮体系光催化氧化降解直接桃红12R的工艺条件及动力学实验[J].大连轻工业学院学报,2003,22(4):262-264. |
| |
| 作者姓名： | 张秀芳 安庆大 |
| |
| 作者单位： | 大连轻工业学院化学工程系，大连轻工业学院化学工程系 辽宁大连 116034，辽宁大连 116034 |
| |
| 基金项目： | 辽宁省博士启动基金资助项目(2021053)，辽宁省教育厅资助项目(230135). |
| |
| 摘 要： | 利用TiO2光催化氧化悬浮体系,对影响染料直接桃红12R降解的因素———pH、反应的初始浓度、反应时间以及TiO2的用量进行了研究。影响染料降解率的4个因素的主次关系为pH>初始浓度>TiO2投加量>反应时间。得出的降解染料直接桃红12R溶液的最佳工艺条件为:pH为4,反应时间为30min,初始浓度为20mg/L以及TiO2投加量0.13g,在此条件下溶液的脱色率为94.8%。并进行了动力学实验,得出了该反应符合一级动力学模式,为一级反应。
|
| 关 键 词： | Ti02光催化氧化悬浮体系 染料 直接桃红12R 降解 脱色 印染废水 废水处理 |
| 文章编号： | 1005-4014(2003)04-0262-03 |
Technology condition and dynamics experiment for degradation of direct red 12R by photocatalytic oxidization in suspended system |
| |
| ZHANG Xiu-fang,AN Qing-da.Technology condition and dynamics experiment for degradation of direct red 12R by photocatalytic oxidization in suspended system[J].Journal of Dalian Institute of Light Industry,2003,22(4):262-264. |
| |
| Authors: | ZHANG Xiu-fang AN Qing-da |
| |
| Abstract: | Using suspended semi-conductor photocatalytic oxidization technique, factors affecting the photo degradation rate of direct red 12R are investigated, including pH, virgin concentration of the dye, reaction time, and TiO_2 quantity. The order of these four factors is determined. The optimum reaction condition is as follows: pH value, 4; reaction time, 30?min; virgin concentration of the dye, 20?mg/L; TiO_2 quantity, 0.13?g. Under this condition, the degradation rate of direct red 12R is 94.8%. Dynamics experiment shows that the reaction conforms to the first level dynamics model, being the first level reaction. |
| |
| Keywords: | catalysis dyes oxidation |
| 本文献已被 CNKI 等数据库收录！ |
