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，它们通过与镧系（Ln(III)）离子的稳定络合而出现，用于稀有金属的选择性分离。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伊利胶上。数据还显示，特异Ln(III)-配体复合物的EXAFS数据与Ln(III)-配体-介孔材料相同，这是非常有趣的，并且是固体功能介孔材料中Ln（III）离子回收的例外。最显著的一点是：Ln（III）的吸附不受钠、钾、钙、镁、氯化物、硫酸盐和硝酸盐等一、二价离子存在的影响，与三价Ln（III）形成稳定络合的倾向较强。EXAFS数据表明，纳米吸附剂的O和N给体原子与Ln（III）离子强配位，形成稳定的配合物。

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.