| Photodegradation of α-naphthaleneacetic acid in aqueous solution |
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| 作者姓名： | LIU Hui-jun ZHOU Zhu-fei LIU Wei-ping |
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| 作者单位： | Environmental Science Institute，Zhejiang University，Hangzhou 310027，China. |
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| 基金项目： | TheNationalNaturalScienceFoundationofChina (No .396 70 42 0 ) |
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| 摘 要： | Ｉｎｔｒｏｄｕｃｔｉｏｎα ｎａｐｈｔｈａｌｅｎｅａｃｅｔｉｃａｃｉｄ (ＮＡＡ)ｉｓａｎｉｍｐｏｒｔａｎｔｐｌａｎｔｇｒｏｗｔｈｒｅｇｕｌａｔｏｒｕｓｅｄｎｏｔｏｎｌｙｔｏｐｒｅｖｅｎｔｔｈｅｐｒｅｈａｒｖｅｓｔｄｒｏｐｏｆａｐｐｌｅｓｂｕｔａｌｓｏａｓａｆｒｕｉｔｔｈｉｎｎｉｎｇａｇｅｎｔ (Ｗｏｒｔｈｉｎｇ ,1991) .ＭｕｃｈｒｅｓｅａｒｃｈｗｏｒｋａｂｏｕｔｔｈｅｅｆｆｅｃｔｏｆＮＡＡｏｎｐｌａｎｔｔｉｓｓｕｅｓ(Ｓｐｅｅｒ,1993;Ｈｉｄｅｙｏｓｈｉ,1993;Ｐｒａｓｄ ,1994 ) ,ｐｌａｎｔｇｒｏｗｔｈａ…
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| 关 键 词： | α-naphthaleneacetic acid photolysis aqueous solution |
| 收稿时间： | 5/8/2000 12:00:00 AM |
| 修稿时间： | 2000/7/12 0:00:00 |
Photodegradation of α-naphthaleneacetic acid in aqueous solution |
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| LIU Hui-jun,ZHOU Zhu-fei,LIU Wei-ping.Photodegradation of α-naphthaleneacetic acid in aqueous solution[J].Journal of Environmental Sciences,2001,13(3):361-364. |
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| Authors: | LIU Hui-jun ZHOU Zhu-fei LIU Wei-ping |
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| Abstract: | Kinetic processes of α-naphthaleneacetic acid (NAA) photolysis were studied under different conditions. The results showed that the ultraviolet light was more effective than fluorescent light in promoting degradation, and the degradation of NAA under ultraviolet light followed the first order kinetics with the photolysis rate constant of 1.15 x 10-2 min-1 and half-life time (t1/2) of 60 min. Further, it was proved that the photolysis rate was higher in the presence of oxygen, titanium dioxide (TiO2), and low pH ( acidic solution). At last, two photolysis intermediates were identified by GC-MS and possible photolysis pathways were proposed. |
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| Keywords: | naphthaleneacetic acid photolysis aqueous solution |
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