Kinetics and mechanisms of radiation-induced degradation of acetochlor.
The radiation-induced degradation of acetochlor was investigated in this work. In a mixed solvent composed of acetonitrile and water at a ratio of 20/80 in volume, the acetochlor degradation rate was proportional to the radiation dose rate and acetochlor concentration. The acetochlor degradation efficiency was higher under alkali conditions and lower under acidic conditions. The contribution to the acetochlor degradation by the radicals was in the order of: e(aq)->.OH>H.. The quantum efficiency ratios of .OH, e(aq)- and H. for the degradation of acetochlor were calculated as 1:3:1.
Liu
Shao-Yang
SY
Laboratory of Environmental Engineering, School of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
Chen
You-Peng
YP
Yu
Han-Qing
HQ
Zhang
Shu-Juan
SJ
D002851:Chromatography, High Pressure Liquid; D003037:Cobalt Radioisotopes / Q000737:chemistry*; D005720:Gamma Rays; D006540:Herbicides / Q000737:chemistry* / Q000528:radiation effects; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D013056:Spectrophotometry, Ultraviolet; D014052:Toluidines / Q000737:chemistry* / Q000528:radiation effects
D003037:Cobalt Radioisotopes; D006540:Herbicides; D014052:Toluidines; C043377:acetochlor