采用3种氧化体系(H2SO4/H2O2,H2SO4/K2Cr2O7,H2SO4/HNO3)对多壁碳纳米管(MWC-NTs)进行处理,通过红外光谱、拉曼光谱、热失重、滴定分析、Zeta电位激光粒度分析仪、透射电镜对氧化前后的样品进行表征.结果表明,氧化处理未明显破坏MWCNTs的管状结构,并在表面引入羧基官能团,滴定分析显示按上述氧化体系的顺序样品的表面羧基含量分别为0.95%,6.08%,9.2%;氧化后样品能在水相中形成较稳定的分散.
参考文献
[1] | Lijima S .[J].Nature,1991,35(04):56-58. |
[2] | Dujardin E.;Krishnan A.;Treacy MMJ.;Ebbesen TW. .Purification of single-shell nanotubes[J].Advanced Materials,1998(8):611-613. |
[3] | Banerjee S;Hemraj-Benny T;Wong SS .Covalent surface chemistry of single-walled carbon nanotubes[J].Advanced Materials,2005(1):17-29. |
[4] | Liu J;Rinzler A G;Dai H J et al.[J].Science,1998,280(5367):1253-1256. |
[5] | Chen J;Hamon M A;Hu H et al.[J].Science,1998,282(5386):95-98. |
[6] | Hidefumi Hiur;Thomas W. Ebbesen;Katsumi Tanigaki .Opening and Purification of Carbon Nanotubes in High Yields[J].Advanced Materials,1995(3):275-276. |
[7] | Osorio A G;Silveira I C L;Bueno V L et al.[J].Applied Surface Science,2008,255:2485-2489. |
[8] | Nina I. Kovtyukhova;Thomas E. Mallouk;Ling Pan;Elizabeth C. Dickey .Individual Single-Walled Nanotubes and Hydrogels Made by Oxidative Exfoliation of Carbon Nanotube Ropes[J].Journal of the American Chemical Society,2003(32):9761-9769. |
[9] | M. Corrias;Ph. Serp;Ph. Kalck .High purity multiwalled carbon nanotubes under high pressure and high temperature[J].Carbon: An International Journal Sponsored by the American Carbon Society,2003(12):2361-2367. |
[10] | Datsyuk V;Kalyva M;Papagelis K et al.[J].CARBO,2008,46(02):833-840. |
[11] | Dresselhaus MS.;Dresselhaus G.;Jorio A.;Souza AG.;Saito R. .Raman spectroscopy on isolated single wall carbon nanotubes [Review][J].Carbon: An International Journal Sponsored by the American Carbon Society,2002(12):2043-2061. |
[12] | Blazej Scheibe;Ewa Borowiak-Palen;Ryszard J. Kalenczuk .Oxidation and reduction of multiwalled carbon nanotubes — preparation and characterization[J].Materials Characterization,2010(2):185-191. |
[13] | Tang M;Dou H;Sun K .[J].Polymer,2006,47:728-734. |
[14] | 刘阳桥,高濂.纳米3Y-TZP水悬浮液性质研究[J].高等学校化学学报,2002(11):2155-2158. |
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