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| Photodegradation of Chlorantraniliprole in Aqueous Solution |
| Received:May 08, 2014 |
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| KeyWord:chlorantraniliprol;photodegradation;aqueous solution;half-life |
| Author Name | Affiliation | E-mail | | WU Qun | School of Resources & Environment, Anhui Agricultural University, Key Laboratory of Agri-Food Safety of Anhui Province, Hefei 230036, China | | | SHI Yan-hong | School of Resources & Environment, Anhui Agricultural University, Key Laboratory of Agri-Food Safety of Anhui Province, Hefei 230036, China | | | CAO Hai-qun | School of Plant Protection, Anhui Agricultural University, Key Laboratory of Agri-Food Safety of Anhui Province, Hefei 230036, China | caohaiqun@ahau.edu.cn | | LI Xue-de | School of Resources & Environment, Anhui Agricultural University, Key Laboratory of Agri-Food Safety of Anhui Province, Hefei 230036, China | | | HUA Ri-mao | School of Resources & Environment, Anhui Agricultural University, Key Laboratory of Agri-Food Safety of Anhui Province, Hefei 230036, China | | | TANG Feng | International Centre for Bamboo & Rattan, Beijing 100080, China | | | YUE Yong-de | International Centre for Bamboo & Rattan, Beijing 100080, China | |
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| Abstract: |
| Photodegradation is an important pathway of degradation of chemicals in water environment. This study investigated the photochemical degradation of chlorantraniliprole in aqueous solution under irradiation of UV lamp. The photolysis of chlorantraniliprole could be characterized by first-order kinetic equation, and was negatively correlated with its initial concentrations. Its photolysis was slower in alkaline than in neutral and acidic solutions. The degradation rate of chlorantraniliprole in different types of water was in sequence of ultra-pure water > tap water > pond water > lake water > river water. Hydrogen peroxide(H2O2) showed significant stimulating effect on chlorantraniliprole photolysis, enhancing photolysis rates by 3.11～1.08 times, but such stimulating effect decreased with increasing H2O2 to a certain concentration. These results would advance our understanding of environmental fates and safety assessment of chlorantraniliprole in water environment. |
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