Abstract：Photolysis of butylene fipronil was investigated, including reaction kinetics, transformation product identification and theoretical computation analysis. Photolysis of butylene fipronil under simulated sunlight was well fitted to first-order kinetic model with a half-life of 17.34min. Humic acids significantly reduced photoactivity of the insecticide, due to competitive light absorption, while NO3- and Cl-, didn’t affect its photolysis. Major transformation products were identified as desulfinyl derivative (MW 442.0), sulfone derivative (MW 506.0) and sulfide derivatives (MW 473.9 and 405.8). The proposed pathway of the insecticide was further confirmed by bond order and bond length analysis. The bonds round sulfur atom were easily broken and rearranged to form the transformation products.
王钰, 夏婷婷, 陈景文, 蔡喜运. 丁烯氟虫腈光降解反应过程及机理[J]. 中国环境科学, 2012, 32(1): 89-93.
WANG Yu, XIA Ting-Ting, CHEN Jing-Wen, CAI Xi-Yun. Kinetics and mechanism of photolysis of new insecticide butylene fipronil. CHINA ENVIRONMENTAL SCIENCECE, 2012, 32(1): 89-93.
