NFCRS, Nuclear Science and Technology Research Institute, AEOI, P.O. Box 11365/8486, Tehran, Iran.
J Hazard Mater. 2010 Apr 15;176(1-3):252-6. doi: 10.1016/j.jhazmat.2009.11.020. Epub 2009 Nov 6.
Mesoporous aluminosilicates, have been prepared with various mole ratios of Si/Al and Cethyltrimethylammonium bromide (CTAB). They have been characterized by XRD, nitrogen adsorption/desorption measurements, FT-IR and thermogravimetry. Adsorption behavior of heavy metal ions on this adsorbent have been studied and discussed. The results show that incorporation of aluminum ions in the framework of the mesoporous MCM-41 has transformed it into an effective cation exchanger. The K(d) values of several metal ions have been increased. Separation of Sr(II)-Ce(III), Sr(II)-U(VI) and Cd(II)-Ce(III) has been developed on columns of this novel mesoporous cation exchanger.
介孔硅铝酸盐已通过不同 Si/Al 摩尔比和十六烷基三甲基溴化铵（CTAB）制备。它们的结构通过 XRD、氮气吸附/解吸测量、FT-IR 和热重分析进行了表征。研究并讨论了该吸附剂对重金属离子的吸附行为。结果表明，铝离子掺入介孔 MCM-41 的骨架中，将其转化为有效的阳离子交换剂。几种金属离子的 K(d) 值增加。在该新型介孔阳离子交换剂的柱上实现了 Sr(II)-Ce(III)、Sr(II)-U(VI) 和 Cd(II)-Ce(III)的分离。
