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基于醛基改性MCM-41表面的镧离子印迹聚合物的制备及其对镧离子的吸附分离研究
THE PREPARATION OF LANTHANUM IMPRINTED POLYMER BASED ON ALDEHYDE MODIFIED MCM-41 SURFACE AND STUDY ON ADSORPTION AND SEPARATION OF LANTHANUM ION
【摘要】 本文以醛基改性的MCM-41为基质材料,聚丙烯酰胺为功能单体,戊二醛为交联剂,制备了一种新型的镧离子表面印迹聚合物[La(Ⅲ)-ⅡP]。探究了其对镧离子的吸附性能,探讨了初始浓度、温度、吸附时间以及p H值对镧离子表面印迹聚合物吸附效果的影响,另外,研究了La(Ⅲ)-ⅡP对镧离子的再生性,结果显示,La(Ⅲ)-ⅡP对镧离子具有很强的专一识别能力且具有较高的重复使用率。
【Abstract】 In this paper, a novel lanthanum ion imprinted polymer [La(Ⅲ)-ⅡP] was prepared by using aldehyde modified MCM-41 as matrix material, polyacrylamide as functional monomer and glutaraldehyde as crosslinker. To explore the adsorption performance of lanthanum ions, the effects of the initial concentration, temperature, adsorption time and p H adsorption effect of lanthanum ion surface imprinted polymer, in addition of selectivity and regeneration on lanthanum ion, the results showed that La(Ⅲ)-ⅡP has specific recognition ability and a higher rate of repeated use.
【Key words】 MCM-41; Polyacrylamide; Imprinted polymer; Adsorption properties; Selectivity;
- 【文献出处】 离子交换与吸附 ,Ion Exchange and Adsorption , 编辑部邮箱 ,2018年02期
- 【分类号】O631.3;O647.3
- 【被引频次】4
- 【下载频次】165