研究了壳聚糖/三乙醇胺-银离子印迹膜(Ag(Ⅰ)-ⅡCTM)的吸附性能.结果表明,Ag(Ⅰ)-ⅡCTM对银离子的吸附符合Langumir等温方程,为单分子层可逆化恘吸附,其最大吸附容量为505 mg/g;吸附过程符合拟二级动力恘方程,属颗粒内扩散.吸附条件研究显示,最佳吸附温度和酸度分别为50℃和pH=6,该印迹膜对Ag(Ⅰ)的恒择性远大于常见的Cu2+、Pb2+和Zn2+离子.%The adsorption properties of chitosan/triethanolamine silver ion imprinted membrane (Ag(Ⅰ)-ⅡCTM) were studied. The results showed that the adsorption of silver ions on Ag(Ⅰ)-ⅡCTM was reversible chemical adsorption of monomolecular layer with a maximum adsorption capacity of 505 mg/g, following the Langumir isotherm equation. The adsorption process was in accordance with a pseudo-two order kinetic equation, revealing intraparticle diffusion. The optimum adsorption temperature and acidity were 50℃ and pH=6.0. The selectivity of this imprinted membrane to Ag+ was much higher than the selectivity to Cu2+, Pb2+ and Zn2+.
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