Development And Performance Study Of Nanometer Composite Material Photocatalysis Air Purifier

The quality of the indoor air has become the important factor of affecting the health of people. The use of large quantity of chemical building materials increases indoor air pollution sources and threatens the health of people seriously.It has become more and more urgent to study the effective methods to remove the indoor chemical contaminant.The paper mainly studies the application of TiO₂/Activated Carbon particle in degradation of low concentration chemical gaseous contaminants. Now the latest and important development technique is light catalyst technique combining with adsorbing. TiO₂/ Activated Carbon particle developed in this subject could regenerate by Photocatalytic decomposition under the sun. So photocatalytic air cleaner made by TiO₂/ Activated Carbon particle does not need the ultraviolet light source, the study on adsorption characteristic of this photocatalytic air cleaner will become the key of study. In this paper, Activated Carbon Filter was made by coconut shell activated carbon particle. Then the activated carbon filters of panel type structure were made and a set of experiment device was established. Selecting formaldehyde as a typical indoor air contaminants and considering different experimental conditions and intrinsic factors of filter, the experiment was done for testing influence of the above factors on adsorption efficiency of filter.The main study content of this paper also includes: summarize the latest performance evaluation method of filter at home and abroad,and consequently provide theoretic reference and technical support for establishing related technical standard of TiO₂/ Activated Carbon Photocatalytic Air Purifier.