中文摘要：

在大气压、室温条件下，利用研制的气体喷射式线-筒放电反应器，实验研究了等离子体与二氧化钛（TiO2）协同降解实际空气流中甲苯的效果。结果表明：反应器中流场的分布对甲苯的降解率有显著影响，不同的电场与不同的流场踞配能产生不同的降解效果；正脉冲更有利于降解甲苯，放电电压为33kV时，正脉冲比负脉冲对甲苯的降解率高出47．07％；二氧化钛与放电等离子体的协同明显强化了反应器的降解能力，甲苯初始浓度为400μL/L时，降解率高达94．74％；降解率随着电压的升高而升高，45kV时，335μL/L。甲苯气流的降解率达到94．63％；大电容放电比小电容放电更有利于降解甲苯，其优势随着电压的增长而增长。

英文摘要：

Experiments of the toluene decomposition in real air flow by synergie effect of discharge plasma with nano-TiO2 catalyst are conducted utilizing a self-developed air-steam wire-cylinder reactor under atmosphere pressure and room temperature. The results show that the distribution of flow field in reactor affects decomposition efficiency of toluene dramatically, the combinations between different electric field and flow field cause different decomposition effect. Positive pulse benefits the decomposition and creates a 47.07% higher decomposition effect than that of negative one does at the discharge voltage of 33 kV. The synergie effect of discharge plasma with nano-TiO2 catalyst significantly enhances the decomposition capability of reactor, and the decomposition efficiency approaches to 94.74% when the initial concentration of toluene is 400 μL/L. The decomposition efficiency increases with the increasing discharge voltage and approaches to 94.63% when the discharge voltage is 45 kV and the initial concentration of toluene is 335 μl/L. Larger capacitance discharge enhances toluene decomposition and the enhancement improves with the increase in voltage.