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采用60CO-γ射线对多壁碳纳米管进行了辐射修饰。红外光谱分析(FTIR)表明,水中辐射没有在碳纳米管表面接枝上羧基;酸中辐射和干态辐射后用混酸处理都可以使碳纳米管接枝上羧基,但酸中辐射后的碳纳米管接枝上的羧基更多。拉曼光谱分析(Raman)表明,酸中辐射使碳纳米管的IG/ID值降低,使碳纳米管的石墨化程度降低,结构变得不完善。且辐射剂量越大,石墨化程度降低得越厉害,结构越不完善。热重分析(TGA)表明,原始碳纳米管是一步分解,酸中辐射修饰后的碳纳米管是两步分解。且辐射剂量越大,碳纳米管的起始热分解温度越低。
Multi-walled carbon nanotubes were modified by 60CO-γ radiation. Infrared spectroscopy (FTIR) showed that the water did not radiate onto the surface of the carbon nanotubes, and the carboxyl groups could be grafted to the nanotubes by mixed acid treatment after acid and dry radiation. However, the radiated carbon More nanotubes grafted on the carboxyl. Raman spectroscopy (Raman) showed that the acid irradiation reduced the IG / ID value of the carbon nanotubes, reduced the degree of graphitization of the carbon nanotubes, and the structure became imperfect. And the greater the radiation dose, the more serious the degree of graphitization is reduced, the less perfect the structure. Thermogravimetric analysis (TGA) shows that the original carbon nanotubes are decomposed in one step, and the radiation-modified carbon nanotubes in the acid are decomposed in two steps. And the greater the radiation dose, the lower the initial thermal decomposition temperature of the carbon nanotubes.