Study Of Degredation Of Major Pollutants Indoor By Modified Nano-titanium Dioxode

Nitrogen-doped TiO₂ was prepared by sol-gel method,and loaded on activated carbon fibber as carrier,with large specific surface area and good sorption capacity.Specific surface area and pore size analyzer, TEM and XPS instruments were used to determine the particle's BET, pore size, surface elements and valence.factors, reaction kinetics, reaction mechanism about nano-titanium dioxide photocatalytic technology for treating pollution indoor was studied. Experiments were carried out in the self-designed photocatalytic reactor,primarily investigated light intensity, initial concentration, catalyst dosage, reaction temperature on degradation of formaldehyde and sulfur dioxide.The photocatalytic degradation rates of the situation. The results showed that: Nano-titanium dioxide photocatalytic technology for the purification of pollutants have strong ability, the degradation products of SO₂ was SO₃ illustrate the reaction for the photocatalytic oxidation process. At present, environmental protection attracts more attention, it will play a signifcant role in the air purifing field in the future.