| 引用本文: | 贺金梅,黄玉东,孟令辉,赵建颖,孙德智.超临界水处理对碳纳米管结构的影响研究[J].材料科学与工艺,2010,18(5):662-664,669.DOI:10.11951/j.issn.1005-0299.20100515. |
| HE Jin-mei,HUANG Yu-dong,MENG Ling-hui,ZHAO Jian-ying,SUN De-zhi.Effect of super-critical water treatment on the structure of MWNTs[J].Materials Science and Technology,2010,18(5):662-664,669.DOI:10.11951/j.issn.1005-0299.20100515. |
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| 摘要: |
| 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(Raman)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. |
| 关键词: 碳纳米管 超临界水 结构 |
| DOI：10.11951/j.issn.1005-0299.20100515 |
| 分类号:X131.2 |
| 基金项目:哈工大科研创新基金资助项目(HIT.NSRIF.2008.05);中国博士后基金资助项目 |
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| Effect of super-critical water treatment on the structure of MWNTs |
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HE Jin-mei1, HUANG Yu-dong1, MENG Ling-hui1, ZHAO Jian-ying1, SUN De-zhi2
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1.School of Chemical Engineering and Technology,Harbin Institute of Technology,Harbin 150001,China;2.School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China
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| Abstract: |
| In order to improve the adsorptivity of MWNTs were modified by super-critical water(SCW) techniques.The effects of different treatment temperatures and times in SCW on the structure and morphology of MWNTs were investigated.The FTIR,XPS,Raman and SEM were used to analyze the changes of structure and morphology of MWNTs before and after SCW treatment.The results showed that MWNTs were slightly oxidized(the highest oxygen content is 4.23%) and strongly etched(the highest I D /I G value is 0.62) in the super-critical water.Moreover,the effect of treatment time is more obvious than that of treatment temperature. |
| Key words: MWNTs super-critical water structure |
