为了提高多壁碳纳米管(MWNTs)的吸附性能,采用超临界水(SCW)技术改性MWNTs,研究了在超临界水中不同处理温度和处理时间对MWNTs结构和形貌的影响.分别利用傅里叶变换红外光谱(FT-IR)、X-射线光电子能谱(XPS)、拉曼光谱(Haman)和扫描电子显微镜(SEM)等测试手段分析了改性前后MWNTs结构和形貌的变化.结果表明:超临界水对MWNTs有较弱的氧化能力和较强的物理刻蚀作用,处理时间对MWNTs的影响高于温度的影响.
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