通过在多壁碳纳米管(MWCNTs)表面氧化出羧基,将羧基转化为酰氯,然后将对氨基苯磺酸钠与MWCNTs表面的酰氯发生酰胺化反应,制备了对氨基苯磺酸钠接枝的水溶性多壁碳纳米管(MWCNT-C6H5SO3Na).红外光谱研究表明,对氨基苯磺酸钠以共价键方式接枝到MWCNTs表面；热重分析表明对氨基苯磺酸钠在MWCNTs表面的质量分数达到29.9％.MWCNT-C6H5SO3Na具有良好的水溶性及分散性.吸附性能测试结果表明,MWCNT-C6H5SO3Na对Cu2+的吸附性能较MWCNTs原粉有了显著的提高,吸附等温线符合Freundlich等温吸附方程.
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