Title :
Effects of Different Forms Inorganic Nitrogen on Aqueous Photolysis of Fipronil
Author :
Xiangdan, Zhang ; Guoguang, Liu ; Kun, Yao ; Wenying, Lu
Author_Institution :
Guangdong Univ. of Technol., Guangzhou, China
Abstract :
The photo degradation of fipronil in aqueous with xenon lamp as light source was studied, and the effects of NO3-, NO2- and NH4+ on the photo degradation rate of fipronil were systematically investigated. The results showed that direct photolysis of fipronil under xenon lamp irradiation was found and followed first-order kinetics. But the presence of NO3- and NO2- inhibited the photolysis fipronil. With the increase of the initial nitrate/nitrite concentrations, the photo degradation rate of fipronil had a negative correlation with the initial nitrate/nitrite concentrations. In addition, the addition of ammonium ion has little effect on the photolysis of fipronil.
Keywords :
ammonia; chemical engineering; inorganic compounds; photolysis; photometric light sources; xenon; Inorganic Nitrogen; ammonium ion; aqueous photolysis; direct photolysis; fipronil; first-order kinetics; light source; photodegradation; xenon lamp irradiation; Absorption; Degradation; Equations; Kinetic theory; Mathematical model; Radiation effects; Xenon; Ammonium ion; Fipronil; Nitrate; Nitrite; Photolysis;
Conference_Titel :
Measuring Technology and Mechatronics Automation (ICMTMA), 2011 Third International Conference on
Conference_Location :
Shangshai
Print_ISBN :
978-1-4244-9010-3
DOI :
10.1109/ICMTMA.2011.290
