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

我已经开发了一些新的功能材料，出现通过稳定的配合物与镧系元素（Ln（III））离子的选择性分离稀有金属。我制备了O和N-供体原子作为不同的PTA配体。然后将PTA配体成功地锚定在介孔二氧化硅上。数据还显示，特定的Ln（III）-配体配合物的EXAFS数据与Ln（III）-配体-介孔材料相同，这是非常有趣的，并且是用于Ln（III）离子回收的固体功能介孔材料的例外。最重要的一点是：Ln（III）的吸附是不受一价和二价的钠，钾，钙，镁，氯离子，硫酸根和硝酸根离子的存在下，由于强烈的倾向，形成稳定的络合与三价Ln（III）。EXAFS数据表明，纳米吸附剂的O和N给体原子与Ln（III）离子发生了强配位，形成了稳定的配合物。

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.