| La掺杂TiO2/有机改性膨润土对TNT弹药废水的光催化降解性能研究 |
| |
| 引用本文： | 艾毅宁,陈勇,周德平,谷锦.La掺杂TiO2/有机改性膨润土对TNT弹药废水的光催化降解性能研究[J].四川环境,2013(5):31-37. |
| |
| 作者姓名： | 艾毅宁 陈勇 周德平 谷锦 |
| |
| 作者单位： | [1]成都军区环境监测中心站,成都610041 [2]后勤工程学院国防建筑规划与环境工程系,重庆401311 |
| |
| 基金项目： | 重庆市自然科学基金资助项目（CSTC2008BB7139）. |
| |
| 摘 要： | 利用超声强化溶胶-凝胶法制备了La掺杂TiO2/有机改性膨润土复合光催化材料并进行了结构表征；以弹药废水中主要污染物质TNT作为目标物,考察了影响光催化降解性能的因素.结果表明：有机改性后复合材料的吸附性能和光催化性能均有所增加,对TNT的60min的吸附去除率和光催化降解率分别达到9.68％和94.53％;影响TNT光催化降解率的因素有光照时间、催化剂用量、TNT初始浓度、溶液pH值和光照强度.
|
| 关 键 词： | 弹药废水 TNT 光催化材料 光催化降解性能 |
Studies on Photocatalytic Degradation Performance of La-TiO2/Organic Modified Bentonite for TNT Ammunition Wastewater |
| |
| AI Yi-ningI,CHEN Yong,ZHOU De-ping,GU Jin.Studies on Photocatalytic Degradation Performance of La-TiO2/Organic Modified Bentonite for TNT Ammunition Wastewater[J].Sichuan Environment,2013(5):31-37. |
| |
| Authors: | AI Yi-ningI CHEN Yong ZHOU De-ping GU Jin |
| |
| Institution: | 2 (1. Environmental Monitoring Station of Chengdu Military Region, Chengdu 610041, China; 2 Dept. of National Defence Architectural Planning ＆ Environmental Engineering, Logistic Engineering University , Chongqing 401311, China) |
| |
| Abstract: | Lanthanum doped TiO2/organic modified bentonite composite photocatalyst was prepared by ultrasonic-assisted sol-gel method and the microstructure of materials were characterized. The effects on photocatalytic degradation performance of composite photocatalysts for TNT ammunition wastewater were studied. The results showed that the absorption performance and photocatalytic activities of composite photocatalysts increased after organic modification. The adsorption efficiency and the photocatalytic degradation efficiency within 60rain of TNT were 9. 68% and 94. 53% respectively. The illumination time, photocatalyst dosage, initial concentration of TNT, pH and intensity of light irradiation were the influencing factors on photocatalytic degradation efficiency of TNT. |
| |
| Keywords: | Ammunition wastewater TNT photocatalyst photocatalytic degradation performance |
| 本文献已被 维普 等数据库收录！ |
