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

【摘要】 <正> In this study,a new technique of air cleaning by plasma combined with catalystwas 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 hybridsystem was more efficient than that by plasma only.Positive discharge was better than negativedischarge in formaldehyde removal.Meanwhile,the outlet concentration of ozone byproduct waseffectively reduced by the nano-titania catalyst.更多还原

【Abstract】 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.更多还原