网状聚合物冠醚对重金属离子的吸附性能

Adsorption properties of network crown ether polymer with diethylamino-ethylene-thiaether group for Hg^(2+) and Cu^(2+)

以Hg（NO3）2、Cu（NO3）2水溶液为模拟工业废水，以侧链具N、S配位基的网状聚合物冠醚为吸附剂，研究了聚合物冠醚对HP(2＋)、Cu(2＋)的吸附性能。讨论了溶液温度、pH值、金属离子浓度及时间对吸附性能的影响，该聚合物冠醚对Hg(2＋)具有较高的吸附容量和较快的吸附速度。

The adsorption properties of network crown ether polymer with diethylamino-ethylene-thiaether group for Hg2+ and Cu2+ were studied in aqueous solution. The effects of the temperature, pH value,metal ionic concentration of the solution and adsorption time on the adsorption capacity and selectivity were dis-cussed. The crown ether polymer for Hg2+ has high adsorption capacity and selectivity. At pH 3. 5 and 40℃,the adsorption capacity of NPCE for Hg2+ is 317. 1 mg/g