| 超声辅助纳米铁降解酸性红G的实验研究 |
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| 引用本文： | 宋美荣,崔淑敏,岳鹏华.超声辅助纳米铁降解酸性红G的实验研究[J].环境科学与技术,2009,32(10). |
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| 作者姓名： | 宋美荣 崔淑敏 岳鹏华 |
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| 作者单位： | 河南农业大学理学院,河南,郑州,450002 |
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| 基金项目： | 河南农业大学博士科研启动基金，国家自然科学基会面上青年科学基金项目 |
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| 摘 要： | 通过硼氢化纳还原法制备了铁纳米颗粒,并用十二烷基硫酸钠对其进行保护。所得铁纳米颗粒大小在13nm左右,体心立方相。对比了在机械搅拌和超声辅助条件下纳米铁对酸性红G的降解率,超声条件下纳米铁和微米铁对酸性红G的降解率,以及纳米铁投加量、pH值对酸性红G降解率的影响。结果表明,超声辅助下,pH=6～7时,4min内纳米铁对酸性红G有较高的降解率。机理分析表明超声辅助条件下纳米铁对酸性红G的降解主要是超声分散下纳米铁的还原作用得到提高以及纳米铁氧化产物的絮凝作用。
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| 关 键 词： | 纳米铁 酸性红G 超声 降解 |
Degradation of Acid Red G by Nano-size Fe under Assistance of Supersonic |
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| SONG Mei-rong,CUI Shu-min,YUE Peng-hua.Degradation of Acid Red G by Nano-size Fe under Assistance of Supersonic[J].Environmental Science and Technology,2009,32(10). |
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| Authors: | SONG Mei-rong CUI Shu-min YUE Peng-hua |
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| Institution: | School of Science;Henan Agricultural University;Zhengzhou 450002;China |
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| Abstract: | Metallic nanoparticles were laboratory prepared using sodium borohydride(NaBH4)as the reductant to reduce Fe2+ in aqueous solution,and were modified by 12-alkyl-sulphate sodium(SDS).Characterization of Fe nanoparticles by TEM and XRD showed average size was about 13nm,with body-centered cubic phase.Degradation of Acid Red G by asprepared Fe nanoparticles and effect of supersonic,mechanic stirring,nanosize Fe,microsize Fe,nanosize Fe dosage and value of pH were investigated.Results showed that Acid Red G can... |
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| Keywords: | Fe nanoparticles Acid Red G supersonic degradation |
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