Abstract: An investigation of
carbaryl degradation contained in insecticide Sevin® 85SP by photolysis has been
performed. UV lamp with a wavelength of
365 nm and additions of 20 mg
TiO2-zeolite; 0,8 mg TiO2-anatase
and 19,2 mg
zeolite as catalysts, were applied
in the photolysis
method. The results of degradation were detected by UV-Vis
spectrophotometer at a wavelength of 280 nm.
Spectrophotometry analysis showed
the reduction of
carbaryl absorbance after degradation occured.
Degradation of 20
mg/L carbaryl without
addition of catalysts
by photolysis was reached
32,07 % after
150 minutes. Degradation
percentages of 20
mg/L carbaryl with additions
of TiO2-zeolite, TiO2-anatase
and zeolite consecutively
were 65,36 %; 55,25 % and 40,90 %. The results proved that TiO2-zeolite was more
effective than TiO2-anatase and zeolite as catalyst in carbaryl degradation by
photolysis method.
Keywords: degradation,
carbaryl, photolysis, Titanium
dioxide, zeolite, UV-Vis spectrophotometer
Penulis: Rera Aga Salihat,
Safni dan Hamzar Suyani
Kode Jurnal: jpkimiadd120002
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