杯芳烃衍生物的合成及其对钍离子的吸附性能

摘要

合成了对叔丁基杯[4]芳烃及其衍生物——对叔丁基杯[4]芳烃乙酸,并研究了其对钍(Ⅳ)离子的吸附性能.紫外光谱法研究表明,杯芳烃衍生物在pH=3、30℃下震荡2h后达到吸附平衡,对钍离子的吸附率达72％,吸附容量为9.0 mg/g.干扰离子研究结果显示,带羧基的杯芳烃衍生物有望成为钍(Ⅳ)离子的良好吸附剂.%P-tert-butylcalix [4] arene [PTBC] and its derivative p-tert-butylcalix [4] arene acetate[PTBCA] were synthesized and its adsorption properties of Th4-were studied.UVspectrophotometric analysis shows that the adsorption of thorium using the PTBCA can reach adsorption equilibrium within 2 h under the condition of pH =3 and temperature of 30 ℃.The adsorption rate is 72 ％ and the adsorption capacity is up to 9.0 mg/g.Interfering ions research shows that calixarene derivatives with a carboxyl group is expected to be a good adsorbent for Th4+.