| 接触辉光放电等离子体对水中偶氮染料艳红B的脱色研究 |
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| 引用本文： | 王蕾,刘永军,王研利,张丽.接触辉光放电等离子体对水中偶氮染料艳红B的脱色研究[J].厦门大学学报(自然科学版),2011,50(4):748-751. |
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| 作者姓名： | 王蕾 刘永军 王研利 张丽 |
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| 作者单位： | 1. 厦门理工学院水资源环境研究所,福建厦门,361005
2. 大连海事大学环境科学与工程学院,辽宁大连,116026 |
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| 基金项目： | 国家自然科学基金项目(51008262,11005014); 福建省自然科学基金项目(2010J05035); 福建省教育厅科技项目(JA10247); 中央高校基本科研业务费专项资金(2009QN063,2011JC016) |
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| 摘 要： | 为深入了解接触辉光放电等离子体降解水中有机污染物的机理,用紫外-可见吸收光谱法研究了放电过程中染料结构的变化,考察了pH值、自由基清除剂等实验条件对艳红B脱色的影响.结果表明:加入羟基自由基清除剂可增强艳红B的脱色效果,加入氢自由基清除剂对艳红B的脱色有轻微的阻碍作用.溶液初始pH值在7.0~11.0之间时对脱色影响不大.随着反应的进行,溶液的化学需氧量逐渐升高.紫外-可见吸收光谱分析表明,等离子体产生的活性氢原子对偶氮键的破坏是艳红B脱色的主要原因.
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| 关 键 词： | 等离子体 接触辉光放电 艳红B 脱色 |
Brilliant Red B Bleaching by Contact Glow Discharge Plasma in Aqueous Solution |
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| WANG Lei,LIU Yong-jun,WANG Yan-li,ZHANG Li.Brilliant Red B Bleaching by Contact Glow Discharge Plasma in Aqueous Solution[J].Journal of Xiamen University(Natural Science),2011,50(4):748-751. |
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| Authors: | WANG Lei LIU Yong-jun WANG Yan-li ZHANG Li |
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| Institution: | WANG Lei1,LIU Yong-jun2,WANG Yan-li2,ZHANG Li2(1.Water Resources and Environmental Institute,Xiamen University of Technology,Xiamen 361005,China,2.College of Environmental Science & Engineering,Dalian Maritime University,Dalian 116026,China) |
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| Abstract: | To probe the mechanism of brilliant red B degradation by contact glow discharge plasma in water,changes in dye structure during the treatment were studied by UV-Vis spectrometry,and the influences of initial pH and radical scavengers on the bleaching were examined.Experimental results showed that addition of tert-butyl alcohol enhanced while addition of H2O2 slightly inhibited the brilliant red B bleaching.Initial pH had little effect on the bleaching rate in the range from 7.0 to 11.0.Chemical oxygen deman... |
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| Keywords: | plasma contact glow discharge brilliant red B degradation |
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