| Fenton改性多壁碳纳米管对亚甲基蓝的吸附性能研究 |
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| 引用本文： | 崔春月,马东,郑庆柱.Fenton改性多壁碳纳米管对亚甲基蓝的吸附性能研究[J].中国环境科学,2011,31(12):1972-1976. |
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| 作者姓名： | 崔春月 马东 郑庆柱 |
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| 作者单位： | 青岛农业大学资源与环境学院,山东青岛,266109 |
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| 基金项目： | 国家自然科学基金资助项目，青岛农业大学博士基金 |
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| 摘 要： | 通过催化裂解法制备多壁碳纳米管,利用Fenton试剂对多壁碳纳米管改性,研究了Fenton改性对多壁碳纳米管表面物理化学特性的影响和对亚甲基蓝的吸附特性.投射电镜(TEM)、比表面积(BET)分析表明,Fenton改性多壁碳纳米管纯度高,孔隙均匀,外径为30nm左右,比表面积为120m2/g;且表面引入了大量含氧基团,等电点为1.8.未改性和Fenton改性多壁碳纳米管对亚甲基蓝的吸附动力学均符合Langergren模型,其平衡吸附量分别为24.5,36.4mg/g;吸附等温线均符合Freundlich模型,未改性和Fenton改性多壁碳纳米管的kF分别为7.92和25.37;温度和pH值升高均有利于Fenton改性多壁碳纳米管对亚甲基蓝的吸附.
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| 关 键 词： | 多壁碳纳米管 Fenton改性 亚甲基蓝 吸附 |
| 收稿时间： | 2011-03-05; |
Adsorption of methylene blue by Fenton modified multiwalled carbon nanotubes. |
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| CUI Chun-yue,MA Dong,ZHENG Qing-zhu.Adsorption of methylene blue by Fenton modified multiwalled carbon nanotubes.[J].China Environmental Science,2011,31(12):1972-1976. |
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| Authors: | CUI Chun-yue MA Dong ZHENG Qing-zhu |
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| Institution: | CUI Chun-yue*,MA Dong,ZHENG Qing-zhu,(Resources and Environment College,Qingdao Agricultural University,Qingdao 266109,China). |
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| Abstract: | Fenton was used to modify multiwalled carbon nanotubes(MWCNTs) which were prepared by catalytic splitting decomposition method.Modification effects on physicochemical properties of the MWCNTs as well as adsorption properties of methylene blue on them were studied.According to transmission electron microscopy(TEM) and BET surface area characterization,the obtained Fenton modified MWCNTs were clean and uniform in porosity.The outside diameter and surface area of the modified MWCNTs were 30 nm and 120 m2/g,res... |
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| Keywords: | multiwalled carbon nanotubes Fendon modification methylene blue adsorption |
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