Effects of Cu(Ⅱ) or Zn(Ⅱ) on photodegradation of some toxic organic compounds in wastewater by using TiO_2 as catalyst

摘要

The effects of Cu (Ⅱ) or Zn (Ⅱ) on the photo-catalytic degradation of some organic chemicals in water, such as acetone, phenol, dyes, and tea saponin were studied. Dyes in wastewater from a textile factory can be effectively degraded by photo-catalysis with TiO 2 and ultraviolet light or sunshine, but the reaction rate could be slowed down if copper or zinc salt exists in the solution.