| 多壁碳纳米管表面对硝基苯酚印迹复合材料的制备与吸附性能 |
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| 引用本文： | 张华斌,张朝晖,胡宇芳,杨潇,聂利华. 多壁碳纳米管表面对硝基苯酚印迹复合材料的制备与吸附性能[J]. 高等学校化学学报, 2010, 31(11): 2141-2147 |
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| 作者姓名： | 张华斌 张朝晖 胡宇芳 杨潇 聂利华 |
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| 作者单位： | 1. 吉首大学化学化工学院, 吉首 416000; 2. 湖南大学化学生物传感与计量国家重点实验室, 长沙 410082 |
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| 基金项目： | 湖南省自然科学基金，湖南省科技计划项目，林产化工工程湖南省重点实验室开放基金，吉首大学研究生科研创新基金，吉首大学校级课题基金 |
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| 摘 要： | 以多壁碳纳米管表面接枝的L-苯丙氨酸为结合位点, 甲基丙烯酸为功能单体, 乙二醇二甲基丙烯酸酯为交联剂, 采用沉淀聚合技术, 在碳纳米管表面制备了对硝基苯酚印迹复合材料. 采用红外光谱和扫描电镜研究了该印迹复合材料的结构和形貌, 结果表明, 在碳纳米管表面接枝了一层稳定的印迹材料. 采用高效液相色谱研究了该印迹材料的等温吸附性能, 结果表明, 该印迹材料对模板分子具有较大的吸附容量(Qmax=80.5 μmol/g)和良好的选择吸附性能(选择因子达2.5). 以该印迹材料作为固相萃取吸附剂, 研究了它对对硝基苯酚和其它结构类似物混合溶液的动态吸附性能, 结果表明, 印迹复合材料对对硝基苯酚的吸附容量不受结构类似物浓度的影响, 能较好地应用于对硝基苯酚的分离富集检测.
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| 关 键 词： | 多壁碳纳米管 印迹 硝基苯酚 吸附 |
| 收稿时间： | 2010-03-24 |
Preparation and Adsorption Properties of p-Nitrophenol Imprinted Materials Based on Multi-walled Carbon Nanotubes Surface |
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| ZHANG Hua-Bin,ZHANG Zhao-Hui,HU Yu-Fang,YANG Xiao,NIE Li-Hua. Preparation and Adsorption Properties of p-Nitrophenol Imprinted Materials Based on Multi-walled Carbon Nanotubes Surface[J]. Chemical Research In Chinese Universities, 2010, 31(11): 2141-2147 |
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| Authors: | ZHANG Hua-Bin ZHANG Zhao-Hui HU Yu-Fang YANG Xiao NIE Li-Hua |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China;2. State Key Laboratory of Chemo/Biosensing and Chemometrics, Changsha 410082, China |
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| Abstract: | Novel molecularly imprinted polymers were prepared successfully by employing multi-walled carbon nanotubes(MWNT) as the supported matrix, grafting of L-phenylalanine on the MWNT surface as the binding site, p-nitrophenol as template, methacrylic acid(MAA) as functional monomer and ethyleneglycol dimethyacrylate(EGDMA) as cross-linker. The molecularly imprinted materials were characterized with infrared spectroscopy(IR) and scanning electron microscopy(SEM). The results show that a stable imprinted layer is grafted on the MWNT surface. The static adsorption experiments were also executed. A large adsorption capacity Qmax of 80.5 μmol/g and an excellent selectivity for the template of 2.5 were obtained. As solid-phase extraction adsorbents, the imprinted material was applied to study the dynamic adsorption of p-nitrophenol from a mixture of p-nitrophenol and other structural analogues. The results show that the imprinted materials can apply to the separation of p-nitrophenol from a mixture solution. |
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| Keywords: | Multi-walled carbon nanotube Imprinting Nitrophenol Adsorption |
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