Experimental Study on Indoor Air Cleaning Technique of Nano-Titania Catalysis Under Plasma Discharge  

作　　者：高得力 杨学昌 周飞 吴宇煌 

机构地区：[1]High Voltage Laboratory, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China

出　　处：《Plasma Science and Technology》2008年第2期216-220,共5页等离子体科学和技术（英文版）

基　　金：National Natural Science Foundation of China(No.50436040)

摘　　要：In this study, a new technique of air cleaning by plasma combined with catalyst was proposed, which consisted of electrostatic precipitation, volatile organic compounds （VOCs） decomposition and sterilization. A novel indoor air purifier based on this technique was adopted. The experimental results showed that formaldehyde decomposition by the plasma-catalyst hybrid system was more efficient than that by plasma only, Positive discharge was better than negative discharge in formaldehyde removal. Meanwhile, the outlet concentration of ozone byproduct was effectively reduced by the nano-titania catalyst.In this study, a new technique of air cleaning by plasma combined with catalyst was proposed, which consisted of electrostatic precipitation, volatile organic compounds （VOCs） decomposition and sterilization. A novel indoor air purifier based on this technique was adopted. The experimental results showed that formaldehyde decomposition by the plasma-catalyst hybrid system was more efficient than that by plasma only, Positive discharge was better than negative discharge in formaldehyde removal. Meanwhile, the outlet concentration of ozone byproduct was effectively reduced by the nano-titania catalyst.

关 键 词：non-thermal plasma nano-titania TiO2 CATALYST OZONE FORMALDEHYDE 

分 类 号：O539[理学—等离子体物理]