Xue Chao-Hua, Zhou Ren-Jia, Shi Min-Min, Gao Yan, Wu Gang, Zhang Xiao-Bin, Chen Hong-Zheng, Wang Mang
Department of Polymer Science and Engineering, State Key Lab of Silicon Materials, Zhejiang University, Hangzhou 310027, People's Republic of China. Key Laboratory of Macromolecule Synthesis and Functionalization, (Zhejiang University), Ministry of Education, Hangzhou 310027, People's Republic of China.
Nanotechnology. 2008 Aug 13;19(32):325605. doi: 10.1088/0957-4484/19/32/325605. Epub 2008 Jul 4.
A green approach has been developed to synthesize water soluble multi-walled carbon nanotubes (MWNTs). Ag nanoparticles have been loaded on the as-synthesized MWNTs via the in situ solution method. The strategy is based on the introduction of hydroxyl and carboxyl groups through a mild modification of MWNTs via polycondensation of citric acid and D-sorbitol, improving the water solubility of MWNTs, giving rise to preferred sites of Ag nucleation, and providing mild in situ reducing agents. The modification of MWNTs and loading of Ag nanoparticles on MWNTs were demonstrated by Fourier transform infrared spectroscopy, thermogravimetric analysis, transmission electron microscopy, and scanning electron microscopy.
已开发出一种绿色方法来合成水溶性多壁碳纳米管（MWNTs）。通过原位溶液法将银纳米颗粒负载到合成的多壁碳纳米管上。该策略基于通过柠檬酸和D -山梨醇的缩聚对多壁碳纳米管进行温和改性，引入羟基和羧基，提高多壁碳纳米管的水溶性，产生银成核的优先位点，并提供温和的原位还原剂。通过傅里叶变换红外光谱、热重分析、透射电子显微镜和扫描电子显微镜对多壁碳纳米管的改性以及银纳米颗粒在多壁碳纳米管上的负载进行了表征。
