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氯甲基聚苯乙烯微球与L-半胱氨酸(L-Cys)胺解反应合成聚苯乙烯-L-半胱氨酸树脂,通过红外光谱表征了树脂结构,测定了其树脂的比表面和孔结构等数据,研究了该树脂在不同温度下对Pb~(2+)、Hg~(2+)的吸附等温线,利用热力学函数关系计算出了吸附焓、自由能和熵。结果表明其合成的Cys树脂对水溶液中Pb~(2+)、Hg~(2+)离子有较好的吸附性能。
Polystyrene-L-cysteine resin was synthesized by aminolysis of chloromethyl polystyrene microspheres with L-cysteine (L-Cys). The resin structure was characterized by infrared spectroscopy. The resin ratio The adsorption isotherms of Pb ~ (2 +) and Hg ~ (2+) at different temperatures were studied. The enthalpy of adsorption, free energy and entropy were calculated by thermodynamic function. The results show that the synthesized Cys resin has good adsorption properties for Pb ~ (2 +) and Hg ~ (2+) ions in aqueous solution.