Study Of Indoor Air Cleaning Devices Under The Light Irradiation

With the developing of the economy and the progress of the societies, and the living civilization degree of mankind raises continuously, the people's work, study, amusement etc. the activity turns to go into indoors from the outdoors. The time that people spend in indoors become more and more long, the quality of the indoor air has become to affect the important factor of the healthy of people, the pollution of the indoor air have already caused the people's extensive concern. Therefore, how to purify the indoor air pollution by air purifying technique is also a research heat of indoor pollution problem both at home and abroad. Now latest development technique is TiO₂ light catalyst technique, and its' combing with adsorbing etc. However, because of the hard separation recovery of the TiO₂ catalyst powder, the light energyutilization is not high , limiting the TiO₂ light catalyst technique's application in industry production. Aim at this problem, this thesis researches on the test of the light catalyst to degradate the pollution of the formaldehyde(<0.1 ml/ m³),which is most representative in indoor pollution with the compound material- TiO₂/ ACF. Furthermore, this thesis also researches on the equipment of light catalyst air purifying.Research including:1. the way to produce 0.7 ml/m3 formaldehyde source gas, which could simulate the real indoor air condition;2. the way that TiO2 and ACF were compounded; finding out the optimal light irradiation condition by comparing the formaldehyde treatment effectiveness under different light irradiations;3. The different light shine on under condition that system to the processing result experiment of the formaldehyde air;4. comparing the formaldehyde treatment effectiveness between using ACF alone and using TiO2—ACF compound materials;5. under the optimal light irradiation condition that was found out above, comparing the formaldehyde treatment effectiveness among different TiO2^ACF compound materials that contained different amount of TiO2.6. Carried on the first step design to the new light catalyst air cleaner.7. Go out through the experiment of above series summary in addition to superior project of the formaldehyde within indoor air...