CAJ | 학술논문

采用溶液共混法制备了多壁碳纳米管-壳聚糖(MWNTs-CS)复合物,用透射电子显微镜(TEM)、傅里叶变换红外光谱仪(FT-IR)和紫外可见分光光度计(UV-VIS)对产物进行了表征和分析,讨论溶液温度和pH值对MWNTs-CS稳定性的影响.研究表明,壳聚糖成功地修饰到碳纳米管表面,部分缠绕MWNTs,而MWNTs本身结构没有发生改变,并且MWNTs-CS在水中的溶解性得到了很大的提高.随着溶液温度的增加和pH值的减少,壳聚糖可以从MWNTs-CS上释放.在溶液温度为20℃以及pH值为10时,壳聚糖的修饰效率较高.
채용용액공혼법제비료다벽탄납미관-각취당(MWNTs-CS)복합물,용투사전자현미경(TEM)、부리협변환홍외광보의(FT-IR)화자외가견분광광도계(UV-VIS)대산물진행료표정화분석,토론용액온도화pH치대MWNTs-CS은정성적영향.연구표명,각취당성공지수식도탄납미관표면,부분전요MWNTs,이MWNTs본신결구몰유발생개변,병차MWNTs-CS재수중적용해성득도료흔대적제고.수착용액온도적증가화pH치적감소,각취당가이종MWNTs-CS상석방.재용액온도위20℃이급pH치위10시,각취당적수식효솔교고.
The complex of multi-walled carbon nanotubes and ehitosan (MWNTs-CS) was prepared via blending so-lution. The MWNTs-CS were characterized and analyzed with transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FT-IR) and ultraviolet visible spectrophotometer (UV-VIS). The stability of MWNTs-CS was also analyzed at different temperature and pH value of the solution. The results revealed that chitosan successfully wrapped the carbon nanotubes, but didn't completely wind about the nanotubes. Moreover, the structure of MWNTs did not alter. Owing to the wrapping of chitosan to the surface of MWNTs, the solubility of MWNTs-CS in aqueous solution was greatly improved. With the increase of the temperature and decrease of the pH value of the solution, chitosan released from the surface of MWNTs. In addition, the quantity of ehitosan wrapped the nanotubes was higher when the temperature of the solution was 20℃ and the pH value of the solution was 10.