摘要
为了对目前市场上出现的光催化空气净化器性能进行客观评价,对引进的3台进口、1台国产光催化空 气净化器样机的结构及性能进行了详细的分析和检测.检测实验在4 m3的玻璃密封仓内进行,应用美国Inter- scan公司生产的HCHO在线分析仪,采用逐层分析的方法,对不同净化器的内部结构层进行了污染物HCHO的 降解性能实验,结果发现,由于净化器催化剂层的成膜方法及结构设计的不同,导致目前市场上出现的高科技产 品--纳米光催化空气净化器在性能上存在着严重的问题.同时提出了一种评价净化器性能的方法,利用洁净 空气量及污染物降解90％所需时间可以对净化器性能进行客观评价.
The interior construction and performance of four photocatalytic air purifiers were tested and analyzed detailedly, which was bought from domestic and abroad market. Testing experiments were conducted in a 4 cubic meter airproof chamber using the formaldehyde analyzer which produced by America InterScan Company. The performance of each composing element inside different air purifiers was analyzed systematically. The results show that those photocatalytic air purifiers have many lacks in performance due to different photo-catalyst-loaded method and interior construction design. The performance of four photocatalytic air purifiers was estimated objectively by means of the index of clean air delivery rate and the time needed to decompose 90% of the air contaminants.
出处
《北京工业大学学报》
CAS
CSCD
北大核心
2005年第1期58-62,共5页
Journal of Beijing University of Technology
基金
国家自然科学基金资助项目(50346006
50476036)国家SARS攻关专项基金资助项目(2003A10)北京工业大学博士启动基金资助项目(520050142003030)北京工业大学青年基金资助项目(97005014200401).
关键词
纳米
光催化
空气净化器
nanameter
photocatalyst
air purifiers
