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

Volume

2

fYear

2011

fDate

6-7 Jan. 2011

Firstpage

11

Lastpage

14

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Measuring Technology and Mechatronics Automation (ICMTMA), 2011 Third International Conference on

Conference_Location

Shangshai

Print_ISBN

978-1-4244-9010-3

Type

conf

DOI

10.1109/ICMTMA.2011.290

Filename

5721004