TiO_2催化高压脉冲放电等离子体降解2,4-二硝基苯酚  

Degradation of 2,4-Dinitrophenol by High Voltage Pulse Discharge Plasma Combined with TiO_2

作　　者：秦祖赠[1] 刘自力[1,2] 王燕华[1] 杨克迪[1] 

机构地区：[1]广西大学化学化工学院,广西南宁530004 [2]广州大学化学化工学院,广东广州510006

出　　处：《化工环保》2009年第3期203-206,共4页Environmental Protection of Chemical Industry

基　　金：广西壮族自治区研究生教育创新计划项目(2008105930817D004)

摘　　要：采用TiO2催化高压脉冲放电等离子体降解废水中的2,4-二硝基苯酚,对反应进行了动力学研究。研究结果表明,在高压脉冲放电等离子体及TiO2催化高压脉冲放电等离子体反应中,2,4-二硝基苯酚的降解过程均符合表观一级反应动力学方程。加入TiO2催化剂、提高放电电压均可提高2,4-二硝基苯酚的降解反应速率常数。在TiO2加入量为0.15%、放电电压为16kV时,2,4-二硝基苯酚的降解率为87.4%,TiO2的催化效应增强因子为1.55。2, 4-dinitrophenol in wastewater was degraded by high voltage pulse discharge plasma combined with TiO2. The kinetics of the reaction was studied. The research results show that： Whether in the high voltage pulse discharge plasma system or in the high voltage pulse discharge plasma and TiO2 combined system, the degradation of 2, 4-dinitrophenol is in accordance with the apparent first order reaction equation. The degradation reaction rate constant can increase with the addition of catalyst TiO2 and the increasing of discharge voltage. When the TiO2 dosage is 0. 15% and the discharge voltage is 16 kV, the degradation rate of 2, 4-dinitrophenol is 87.4% and the catalysis enhancement factor of TiO2 is 1.55.

关 键 词：高压脉冲放电等离子体 2 4-二硝基苯酚 二氧化钛 降解 动力学 废水处理 

分 类 号：TQ032.41[化学工程] X703.1[环境科学与工程—环境工程]