新型PS-HQD功能树脂的合成及其对Au^(3+)的吸附性能

Synthesis of Thiourea Chelate Resin and Its Adsorption Property for Au^(3+)

以聚苯乙烯树脂小白球为原料,经硝化、还原、接枝等反应,合成了含有硫脲功能基的新型PS-HQD螯合树脂,研究了该树脂对Au3+的吸附性能。结果表明,在实验条件下,新树脂在含有Au3+、Cu2+、Zn2+、Fe3+等离子的混合体系中,对Au3+有较高的吸附容量和良好选择性,在一定条件下,能定量地解吸树脂所吸附的Au3+。

A new thiourea chelating resin was synthesized through the process of nitrification, reduction and grafting reaction on polystyrene microsphere. The adsorption property of the resin for Au^3＋ was studied. The results show that the resin has excellent adsorption and selectivity for Au^3＋ in the coexisting, system of Au^3＋ , Cu^2＋,Zn^2＋ and Fe^3＋ , and Au^3＋could be desorbed quantitatively.