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采用一种简单、绿色的过程获得了稳定的单壁碳纳米管/L-苯丙氨酸溶液.除纯化及氧化过程,单壁碳纳米管未进一步功能化.结合多种物理化学表征方法对L-苯丙氨酸在单壁碳纳米管上的吸附机理进行了研究.氧化后的单壁碳纳米管对苯丙氨酸的吸附量为33%(质量分数),单壁碳纳米管对吸附于其上的苯丙氨酸的热分解具有催化作用.对不同直径的单壁碳纳米管,苯丙氨酸具有吸附选择性,优先吸附于直径较小的单壁碳纳米管.在π-π相互作用、H键和部分共价键的共同作用下,苯丙氨酸被吸附在单壁碳纳米管上.
Single-walled carbon nanotubes / L-phenylalanine solution was obtained by a simple, green process, and single-walled carbon nanotubes were not further functionalized except for purification and oxidation process.Combined with a variety of physical and chemical characterization methods The adsorption mechanism of L-phenylalanine on single-walled carbon nanotubes was studied.The amount of phenylalanine adsorbed by the oxidized single-walled carbon nanotubes was 33% (mass fraction), the number of single-walled carbon nanotubes The thermal decomposition of phenylalanine adsorbed on it has catalysis. For single-walled carbon nanotubes with different diameters, phenylalanine has adsorption selectivity and preferentially adsorbs to single-walled carbon nanotubes with smaller diameter. -π interaction, H-bond and partial covalent bond, phenylalanine is adsorbed on single-walled carbon nanotubes.