| 光照下铜离子对水中氢氧自由基生成量的影响 |
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| 引用本文： | 彭章娥,吴峰,邓南圣.光照下铜离子对水中氢氧自由基生成量的影响[J].环境科学与技术,2006,29(4):6-8. |
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| 作者姓名： | 彭章娥 吴峰 邓南圣 |
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| 作者单位： | 武汉大学资源与环境学院,武汉,430079 |
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| 摘 要： | 研究了水溶液中铜离子与抗坏血酸、柠檬酸盐及藻等配合体系在高压汞灯光照下产生氢氧自由基的情况,其中铜与抗坏血酸系统反应最强,高压汞灯光照增强了铜与抗坏血酸反应产生氢氧自由基的过程,高压汞灯光照时所产生的自由基量为不光照时的6～7倍。同时铜(或抗坏血酸)单一的水溶液在光照条件下也能产生氢氧自由基。铜离子与柠檬酸钠溶液混合在光照下能产生氢氧自由基;铜离子与藻液混合能加倍藻液中氢氧自由基的产生。
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| 关 键 词： | 铜离子 氢氧自由基 抗坏血酸 藻 柠檬酸盐 |
| 文章编号： | 1003-6504(2006)04-0006-03 |
| 收稿时间： | 2005-03-18 |
| 修稿时间： | 2005-06-01 |
Photo-produced Hydroxyl Radicals Enhanced by Copper Ions in Aqueous Solution |
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| PENG Zhang-e,WU Feng,DENG Nan-sheng.Photo-produced Hydroxyl Radicals Enhanced by Copper Ions in Aqueous Solution[J].Environmental Science and Technology,2006,29(4):6-8. |
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| Authors: | PENG Zhang-e WU Feng DENG Nan-sheng |
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| Abstract: | Photo-produced hydroxyl radical (·OH) could be induced in aqueous solution with Cu2+ and some complex compounds under high-pressure mercury lamp with an exposure time of 4h. The amount of ·OH produced in aqueous solution of Cu2+ and ascorbic acid was greater than that without light. The solution of Cu2+ and citrate could generate ·OH under mercury light. It also found that Cu2+ greatly strengthened photo-production of ·OH in aqueous solution with the present of algae. |
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| Keywords: | hydroxyl radical copper ions ascorbic acid algae citrate |
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