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.【Ⅱ Effects of Cu(Ⅱ） or Zn on photodegradation of some toxic organic compounds in wastewater by using】完成機構：[1]CollegeofChemistryandChemicalEngineering,CentralSouthUniversity,Changsha410083,China [2]ShenzhenMonitoringStationforEnvironmentalProtection,Shenzhen518001,China

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