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以氯甲基化聚苯乙烯(PS)、一缩二乙二醇(DEG)、二缩三乙二醇(TEG)为原料,通过亲水性悬臂将杂环功能基2-氨基5-乙基-1,3,4-噻二唑(AETZ)引入到聚苯乙烯-二乙烯苯母体中,合成了两种新型螯合树脂(PS-DEG-AETZ,PS-TEG-AETZ),并对两种树脂进行了红外光谱和元素分析表征。测定了该树脂对Cu2+、Pb2+、Zn2+、Ag+、Hg2+等金属离子的吸附性能。结果表明,PS-DEG-AETZ,PS-TEG-AETZ对Hg2+、Ag+的静态吸附量分别为0.41mmol/g和0.30mmol/g,对Cu2+、Pb2+、Zn2+的吸附量为零,表现出很好的吸附选择性,亲水性悬臂长度的增加有利于树脂吸附量的增加。
Using chloromethylated polystyrene (PS), diethylene glycol (DEG) and triethylene glycol (TEG) as raw materials, the heterocyclic functional groups 2-amino 5- Two novel chelating resins (PS-DEG-AETZ, PS-TEG-AETZ) were synthesized by introducing AETZ into polystyrene-divinylbenzene matrix. The two resins were characterized by IR and elemental analysis. The adsorption properties of the resin to Cu2 +, Pb2 +, Zn2 +, Ag +, Hg2 + and other metal ions were measured. The results showed that the static adsorption capacities of PS-DEG-AETZ and PS-TEG-AETZ on Hg2 + and Ag + were 0.41 mmol / g and 0.30 mmol / g, respectively. The adsorption capacity of Cu2 +, Pb2 + and Zn2 + Of the adsorption selectivity, the increase of hydrophilic cantilever length is conducive to the increase of resin adsorption.