根据纳米管钛酸(NTA)所具有的独特光学性质、电学性质和光催化作用特性,对NTA进行酸活化处理,增强NTA的表面活性,利用透射电子显微镜(TEM)和傅立叶变换红外光谱法(FT-IR)对NTA表面结构和表面基团进行了表征和分析,探讨分析酸处理NTA与氨基酸的相互作用结果。分析发现,乙酸处理NTA长度明显变短,纳米管束直径无明显变化,NTA表面成功交联了羧基或酯基;酸处理NTA更易捕获氨基酸残基形成紧密结合。 According to the unique optical, electrical and photocatalytic properties of NTA, NTA was activated by acid to enhance the surface activity of NTA. Transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FT -IR) were used to characterize and analyze the surface structures and surface groups of NTA. The results of the interaction between acid-treated NTA and amino acids were analyzed. The results showed that the length of NTA treated by acetic acid was significantly shorter and the diameter of nanotube bundles did not change significantly. The carboxyl or ester groups were successfully cross-linked on the surface of NTA. Acid-treated NTA could trap the amino acid residues more tightly.