Selective separation and extraction of Actinide and Lanthanide group rare earth metals by highly selective amide type novel ligands and nano-adsorbents

我开发了一些新的功能材料，它们是通过与稀土(Ln(III))离子稳定配位而出现的，用于选择性分离稀有金属。我制备了O和N-给体原子作为不同的PTA配体。然后将PTA配体成功地固定在介孔材料ILICA上。数据还表明，特定的Ln(III)-配体络合物的EXAFS数据与Ln(III)-配体-介孔材料的EXAFS数据相同，这是一种非常有趣的、例外的固体功能介孔材料，用于回收Ln(III)离子。其中最显著的一点是：钠、钾、钙、镁、氯、硫酸盐和硝酸盐离子的一价和二价离子的存在不影响Ln(III)的吸附，因为它们有很强的与三价Ln(III)形成稳定络合的倾向。EXAFS数据表明，纳米吸附剂中的O、N给体原子与Ln(III)离子形成稳定的络合物。

I have developed some new functional materials which appear through stable complexation with lanthanide (Ln(III)) ions for selective separation of rare metals. I prepared O and N-donor atoms as different PTA ligands. Then the PTA ligands were successfully anchored onto mesoporous ilica. The data also revealed that EXAFS data of specific Ln(III)-ligands complex were the same as Ln(III)-ligands-mesoprous materials which was very interesting and exceptional the solid functional mesoporous materials for Ln(III) ions recovery. The most significant point was: Ln(III) sorption was not affected by the presence of monovalent and divalent of sodium, potassium, calcium, magnesium, chloride, sulfate and nitrate ions due to strong tendency to form stable complexation with trivalent Ln(III). The EXAFS data revealed that O and N donor atoms of the nano-adsorbent were strongly coordinated to Ln(III) ions to form stable complexes.