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| 金属卟啉有机共价和非共价修饰多壁碳纳米管 | |
| 引用本文： | 王红科a 彭圣明a 赵鸿斌,a,b 许兰兰a 张 辉a 陆旭甲a. 金属卟啉有机共价和非共价修饰多壁碳纳米管[J]. 化学学报, 2009, 67(14): 1643-1649 |
| 作者姓名： | 王红科a 彭圣明a 赵鸿斌 a b 许兰兰a 张 辉a 陆旭甲a |
| 作者单位： | (a湘潭大学化学学院 环境友好化学与应用省部共建教育部重点实验室 湘潭 411105) ;(b东莞理工学院化学与环境工程学院 东莞 523808) ; |
| 摘 要： | 合成了5-(4-羟基苯基)-10,15,20-三苯基卟啉锌配合物, 与活化的多壁碳纳米管(MWNT)发生酯化反应, 从而得到金属卟啉有机共价化学修饰的多壁碳纳米管复合物; 利用金属卟啉环上的π电子与多壁碳纳米管管壁上的π电子通过π-π堆积效应, 得到金属卟啉有机非共价修饰的多壁碳纳米管复合物. 通过透射电镜(TEM)考察了金属卟啉-多壁碳纳米管复合物的形貌特征; 通过红外光谱对产物的化学结构进行了表征; 通过紫外光谱、荧光光谱和热失重分析(TGA)对比分析了两类复合物, 发现非共价修饰的金属卟啉-碳纳米管复合物的荧光淬灭率更高, 非共价修饰的金属卟啉-碳纳米管复合物中卟啉的含量比较高. |
| 关 键 词： | 金属卟啉 多壁碳纳米管 共价化学修饰 非共价化学修饰 复合物 |
| 收稿时间： | 2008-10-23 |
| 修稿时间： | 2008-12-30 |
Covalently and Noncovalently Chemical Functionalization of Multi-walled Carbon Nanotube with Metalloporphyrin |
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| Affiliation: | ( Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105) ( College of Chemical and Environmental Engineering, Dongguan University of Technology, Dongguan 523808) |
| Abstract: | Zinc 5-(4-hydroxyphenyl)-10,15,20-triphenylporphyrin was synthesized. Then the covalently modified nanocomposite was gained through the esterification between the oxidized multi-walled carbon nanotube (MWNT) and the zincporphyrin. Noncovalently modified with the zincporphyrin, the nanocomposites was gotten through π-π pileup. The morphology of the nanocomposites was studied by transmission electron microscopy (TEM), and the structure of resultant products was characterized by FT-IR spectra. The comparison of the two kinds of nanocomposites was studied by UV absorption, fluorescence spectroscopy and TGA. Moreover, the noncovalent functionalization provides a higher fluorescence quenching than the covalent functionalization. The weight percentage of metalloporphyrin attached to the MWNT through π-π pileup is higher. |
| Keywords: | metalloporphyrin multi-walled carbon nanotube covalently chemical functionalization non-covalently chemical functionalization composite |
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