|
|||||
|
|
| TiO2/N可见光光催化降解邻苯二甲酸二甲酯 | |
| 引用本文： | 张科军,曾黎明,王联芝,但悠梦. TiO2/N可见光光催化降解邻苯二甲酸二甲酯[J]. 湖北民族学院学报(自然科学版), 2012, 0(1): 18-22 |
| 作者姓名： | 张科军 曾黎明 王联芝 但悠梦 |
| 作者单位： | 湖北民族学院化学与环境工程学院 |
| 基金项目： | 湖北省教育厅中青年项目(Q20111903);湖北民族学院博士启动基金(MY2008B036);湖北民族学院创新团队项目(MY2009T003) |
| 摘 要： | 采用氮掺杂的二氧化钛为催化剂,探索了可见光催化氧化降解邻苯二甲酸二甲酯(DMP)的研究.系统地考察了光催化降解反应中DMP的初始浓度、光照时间、催化剂的量、pH值等因素对邻苯二甲酸二甲酯(DMP)的降解效率及速率的影响;同时对其光降解动力学及光降解过程中的矿化程度进行了一定的分析.结果表明,只有在催化剂和光源同时存在的情况下,DMP才有比较好的降解效果.当DMP的初始浓度为10 mg/L时,在优化条件下,即光催化剂为量1 g/L,pH值为6.20时,在以500W氙灯下进行光照8h,其降解率可达到90%以上.此光催化降解反应过程符合一级反应动力学. |
| 关 键 词： | 邻苯二甲酸二甲酯 催化剂TiO2/N 光催化 降解率 |
Photocatalic Degradation of Dimethyl Phthalate with TiO2/N under Visible Light |
|
| ZHANG Ke-jun,ZENG Yi-ming,WANG Lian-zhi,DAN You-meng. Photocatalic Degradation of Dimethyl Phthalate with TiO2/N under Visible Light[J]. Journal of Hubei Institute for Nationalities(Natural Sciences), 2012, 0(1): 18-22 | |
| Authors: | ZHANG Ke-jun ZENG Yi-ming WANG Lian-zhi DAN You-meng |
| Affiliation: | * (School of Chemical and Environmental Engineering,Hubei University of Nationalities,Enshi 445000,China) |
| Abstract: | In this paper,degradation of dimethyl phthalate(DMP) was explored with nitrogen doped titanium dioxide as a catalyst under the visible light irradiation.Degradation efficiency was investigated systematically by the initial concentration of DMP,irradiation time,catalyst amount,pH value,etc.The results showed that more than 90% of DMP was degraded under optimum conditions,ie,1 g/L catalyst amount,pH value of 6.20 and 500 w xenon lamp after 8h-irradiation with the initial DMP solution of 10 mg/L.The process of photocatalytic oxidation is the first order kinetics. |
| Keywords: | dimethyl phthalate catalyst TiO2 / N photocatalysis degradation rate |
| 本文献已被 CNKI 等数据库收录！ | |