Escobar M, Goyanes S, Corcuera M A, Eceiza A, Mondragon I, Rubiolo G H, Candal R J
Instituto de Fisicoquímica de Materiales, Ambiente y Energía, CONICET-UBA, Ciudad Universitaria 1428 Bs As, Argentina.
J Nanosci Nanotechnol. 2009 Oct;9(10):6228-33. doi: 10.1166/jnn.2009.1563.
Advanced oxidation technologies (AOT) were applied for the production of accurately controlled oxidized multi-walled carbon nanotubes. Fenton process is effective to get carboxylic (-COO- or -COOH) and OH groups on the surface of carbon nanotubes while Photofenton and UV/H2O2 processes mostly produce OH groups on surface of multiwalled carbon nanotubes (MWCNT). All of them preserve the structure of MWCNT allowing to achieve accurately controlled oxidized MWCNT. Fourier transform infrared spectroscopy (FTIR) and thermogravimetical analysis (TGA) show that the acid treatment is the more efficient technique to generate COOH groups on MWCNT surface. However, this chemical technique generates strong damages on the MWCNT structure, as demonstrated by TGA, field emission scanning electron microscopy and transmission electron microscopy results.
先进氧化技术（AOT）被应用于制备精确控制氧化的多壁碳纳米管。芬顿法能有效地在碳纳米管表面引入羧基（-COO-或-COOH）和羟基，而光芬顿法和UV/H2O2法主要在多壁碳纳米管（MWCNT）表面产生羟基。所有这些方法都保留了MWCNT的结构，从而能够实现精确控制氧化的MWCNT。傅里叶变换红外光谱（FTIR）和热重分析（TGA）表明，酸处理是在MWCNT表面生成COOH基团的更有效技术。然而，如TGA、场发射扫描电子显微镜和透射电子显微镜结果所示，这种化学技术会对MWCNT结构造成严重破坏。
