nan Safni

DEGRADATION OF PERMETHRIN BY PHOTOLYSIS METHOD USING CATALYST TiO 2 -ANATASE

The research was about the degradation of permethrin compound by photolysis method using TiO 2 -anatase as catalyst. Permethrin is a synthetic pyretroid pesticides which has low toxicity for mammals but high toxicity for fishes, insects and water microorganisms. Photolysis method is conducted by using 10 watt UV lamp at 365 nm of wavelength. The degradation of permethrin by photolysis were done without and with TiO 2 -anatase on varied time and TiO 2 -anatase addition. The result showed that photolysis could degrade 5.40 %the 20 mg/L permethrin compound after 120 minutes irradiation. Permethrin compound with similar consentration by addition 8 mg TiO 2 -anatase without mixing could degrade 18,59 % and with mixing could degrade 85,65% after 120 minutes irradiation. Degradation of permethrin compound by photolysis method using TiO 2 -anatase as catalyst is effective and efficient. Keywords: Degradation, Photolysis, Permethrin, TiO 2 -anatase.