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

高选择性酰胺型新型配体和纳米吸附剂选择性分离萃取锕系和镧系稀土金属

• 批准号: 24860070
• 负责人: MD RABIUL AWUAL
• 金额: $ 1.91万
• 依托单位: Japan Atomic Energy Agency
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-08-31 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24860070/
• 关键词: Nanomaterials; Functional groups; Lanthanide; Coordination; EXAFS; Transition metals; Precious metals; Cesium; Lanthanide(III); Separation and recovery

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.

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。

项目成果

Evaluation of lanthanide sorption and their coordination mechanism by EXAFS measurement using novel hybrid adsorbent

• DOI: 10.1016/j.cej.2013.04.015
• 发表时间: 2013-06-01
• 期刊: CHEMICAL ENGINEERING JOURNAL
• 影响因子: 15.1
• 作者: Awual, Md Rabiul;Kobayashi, Tohru;Yaita, Tsuyoshi
• 通讯作者: Yaita, Tsuyoshi

アクチノイド錯体化学研究グループ

锕系配合物化学研究组

Efficient detection and extraction of cobalt(II) from lithium ion batteries and wastewater by novel composite adsorbent

• DOI: 10.1016/j.snb.2013.09.076
• 发表时间: 2014-02-01
• 期刊: SENSORS AND ACTUATORS B-CHEMICAL
• 影响因子: 8.4
• 作者: Awual, Md. Rabiul;Ismael, Mohamed;Yaita, Tsuyoshi
• 通讯作者: Yaita, Tsuyoshi

Fine-tuning mesoporous adsorbent for simultaneous ultra-trace palladium(II) detection, separation and recovery

• DOI: 10.1016/j.jiec.2014.03.013
• 发表时间: 2015-01
• 期刊: Journal of Industrial and Engineering Chemistry
• 影响因子: 6.1
• 作者: M. R. Awual;M. Hasan

Investigation of potential conjugate adsorbent for efficient ultra-trace gold(III) detection and recovery

• DOI: 10.1016/j.jiec.2013.12.040
• 发表时间: 2014-09-25
• 期刊: JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
• 影响因子: 6.1
• 作者: Awual, Md Rabiul