Study On Photocatalysis Indoor Air Purifier

Gas-solid-phase photocatalysis has the attractive application perspective in environmental management,because of simple operation, mild conditions, low energy,and haven't secondary pollution. With the development and application of the new technology,It's necessary to research new photocatalytic air purifier.Revolving photocatalytic air purifier has designed and manufactured,and the activity was evalutated by selecting benzene as pollutant.In evaluation of air purifier,there are six factor to observe and study,including different initial concentration of pollutant,the amounts of regular photocatalyst, the distribution in purifier of illuminationand,quantity of decontamination , rotary way of regular photocatalyst.The effects of the regular photocatalyst on gas-phase photocatalytic degradation reaction of benzene were examined; Compared static test with dynamic state in capacity of cleaning ;and study on purified the pollutant in testing room by Ti02 photocatalyst, adsorption supports and Regular photocatalyst. In addition, the use of life, catalyst deactivation for degradation have been studied in experiments.Thermal desorption experiments also responded after photocatalytic reaction had ended. Throught thermal desorption for the catalyst,net rate of photocatalytic degradation was calculated. Security can be verified and the discussion of the application advantage of collaborative photocatalytic with adsorption.In the process of Gas-phase photocatalysis produce inevitably ultraviolet lamp of ozone is discussed, and the amount of ozone is calculated by experiment, photocatalytic determine the safe use of indoor air purifier.