Experiment on eliminating low concentration formaldehyde in air by nanometer photocatalyst materials

Analyses the eliminating performance of the nanometer photocatalyst material by comparing with the adsorption performance of the activated carbon fiber. Explores the effects of the original concentration of formaldehyde， the concentration of TiO2 and the outside parameters including the temperature， relative humidity and airflow velocity on the photocatalysis performance by experiments. The results indicate that the eliminating performance of the nanometer material is superior to that of the activated carbon fiber; at the condition of single influencing factor the effect of the temperature is more obvious than the others; to the interaction of all the influencing factors the temperature and the original concentration of formaldehyde have obviously effect.