Effects of Cu(Ⅱ) or Zn(Ⅱ) on photodegradation
of some toxic organic compounds in
wastewater by using TiO2 as catalyst
of some toxic organic compounds in
wastewater by using TiO2 as catalyst
(1. College of Chemistry and Chemical Engineering,
Central South University, Changsha 410083, China;
2. Shenzhen Monitoring Station for Environmental Protection,
Shenzhen 518001, China;
3. Physical and Environmental Chemistry, FB02-University Bremen,
D28334 Bremen, Germany;
4. Department of Metallurgy Science and Engineering,
Central South University,Changsha 410083, China)
Central South University, Changsha 410083, China;
2. Shenzhen Monitoring Station for Environmental Protection,
Shenzhen 518001, China;
3. Physical and Environmental Chemistry, FB02-University Bremen,
D28334 Bremen, Germany;
4. Department of Metallurgy Science and Engineering,
Central South University,Changsha 410083, China)
Abstract: 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 TiO2 and ultraviolet light or sunshine, but the reaction rate could be slowed down if copper or zinc salt exists in the solution.
Key words: photo-catalytic degradation; titanium dioxide; dye wastewater; acetone; phenol; tea saponin