Yu Jin-Gang, Huang Ke-Long, Tang Jin-Chun, Yang Qiaoqin, Huang Du-Shu
School of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China.
Int J Biol Macromol. 2009 May 1;44(4):316-9. doi: 10.1016/j.ijbiomac.2008.10.009. Epub 2008 Oct 31.
Chitosan modified multi-walled carbon nanotube composites were synthesized under microwave irradiation. The resultant chitosan modified multi-walled carbon nanotube composites were purified by twice adjusting of pH value of the solution and centrifugating in succession. The surface functional groups of chitosan modified multi-walled carbon nanotube composites are confirmed by Fourier transform infrared spectroscopy and UV-vis spectroscopy. Transmission electron microscopic images further show the morphologic changes of the carbon nanotubes. Thermal gravimetric analysis shows that the chitosan content in the chitosan modified multi-walled carbon nanotube composites is much higher than conventional methods. The whole reaction procedure can be completed in 1 h under microwave irradiation.
在微波辐射下合成了壳聚糖改性多壁碳纳米管复合材料。通过两次调节溶液pH值并连续离心，对所得壳聚糖改性多壁碳纳米管复合材料进行纯化。利用傅里叶变换红外光谱和紫外可见光谱对壳聚糖改性多壁碳纳米管复合材料的表面官能团进行了确认。透射电子显微镜图像进一步显示了碳纳米管的形态变化。热重分析表明，壳聚糖改性多壁碳纳米管复合材料中的壳聚糖含量远高于传统方法。在微波辐射下，整个反应过程可在1小时内完成。
