中文摘要：

概括了目前几类常用的纳米碳管（CNTs）表面改性方法的研究进展，分析了各方法的特点、原理及存在的问题，简单地描述了改性后CNTs性质的变化。权衡各方法的利弊，提出了未来CNTs改性的研究方向，即应注重多学科的交叉应用，将各改性手段有机结合，提高修饰效果。同时指出，改性后的CNTs在环境中的迁移转化及产生的环境风险尚不清楚，在今后的研究中还需充分认识改性后CNTs的理化性质，这是对其进行客观风险评价的重要前提。

英文摘要：

Research progress of the present several types of common carbon nanotubes （CNTs） surface modification methods was summarized. The characteristic, principle and problems of these methods were analysed. The change of the properties of CNTs after modified was briefly described. Weighing the advantages and disadvantages of the modification methods,the future direction of CNTs modification research was put forward, that is attach impor tance to multidisciplinary cross applications, organically combined with each modification method to improve modifica tion effect. At the same time, the mobility and transformation in the environment and the environmental risk of modi fled CNTs is not clear. In the future research, we need to know more about the physicochemical properties of modified CNTs, which is the important premise for objective risk assessment.