The Study Of Photocatalyst Spray Purifying Air Pollution

With the progress of our society and advancement of living standard, people are paying more and more attention to the healthy environment where they live. Much research has been done on the photocatalytic properties of TiO₂ since the metaphase of 1970s. Taking advantage of TiO₂ to remove and degrade pollutants has become a very active research direction in the field of environment science.The behavior of home-made photocatalyst spray has been studied in laboratory. Experiment was conducted in climate cabin with the volume of 0.216 m³. It mainly dealt with formaldehyde, microorganism, ammonia and anion, discussed the influence of formaldehyde initial consistency,temperature,humidity and degradation reaction time on the photodegradation rate of formaldehyde .we also discussed the influence of the content of nanometer TiO₂ and heating-time on photodegradation rate of house harmful air. We do anti-fungus experiment of mask,air conditionging screen,ceramic tile which have nanometer TiO₂, studied the application of nanometer TiO₂ in our life. The result shows that : under nature condition , photocatalyst spray had stronge decompose effect of photocatalyst on contaminations . Photocatalyst spray was of strong decompose effect to formaldehyde and comparatively strong effect to ammonia, the ability of anti-fungus comparatively strong, the spray can increase the anion obviously. As new house air purification product, the photocatalyst spray has important effect on improvement house air under nature condition, has great development potential and application foreground in air purification field.