Study on TiO₂ loaded on glass spring to eliminate main contaminant in indoor air

  Objective   To resear ch the deg radation of TiO₂ loaded on glass spring to eliminate the main contaminatnt in indoor air.

  Methods   TiO₂ and Threde metal ion doped TiO₂ photocatalysts were prepared on glass spring by sol gel process ing.Ahomemade photocataly tic reactor was used to evaluate the degraded effect of the TiO₂ photocatalysts on the main contaminant formaldehyde and VOCs in indoor air.

  Results   The degraded rate of no doped and silver doped TiO₂ toformalde hyde was basically same; lanthanum doped TiO₂ was significantly improv ed; iron doped TiO₂ was the low est.The degr aded rate of no doped, silv er doped and lanthanum doped TiO₂ to VOCs was basically same, iron doped TiO₂ was lower.

  Conclusion   The degr aded effect of methalion doped TiO₂ toformaldehyde was prominent, but it was inapparent to VOCs.