Abstract
A novel hydrophobic ionic liquid including N,N,N¤,N¤-tetrakis(2-pyridylmethyl)-1,3-diaminopropane-2-amido structures ((IL-TPTNA)+NTf21) was successfully synthesized. Its extraction performance of Eu3+ from nitric acid solution was investigated by dissolving in a low viscosity ionic liquid (C6mim)+NTf21. As a result, it was found that the extraction percentage of Eu3+ varied with the pH value. The stripping of extracted metals from (C6mim)+NTf21 into a receiving phase was successfully achieved under 1.0 M nitric acid conditions. Slope analysis confirmed that (IL-TPTNA)+NTf21 formed a 1:3 complex with Eu3+ in the (C6mim)+NTf21 system. Furthermore, (IL-TPTNA)+NTf21 showed greater preference to heavier lanthanides than lighter ones.
| Original language | English |
|---|---|
| Pages (from-to) | 732-735 |
| Number of pages | 4 |
| Journal | Chemistry Letters |
| Volume | 47 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2018 Jan 1 |
| Externally published | Yes |
Keywords
- Extraction
- Ionic liquid
- Lanthanide
ASJC Scopus subject areas
- Chemistry(all)
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Cite this
Wu, H., Zhang, X., Yin, X., Yusuke, I., Miki, H., & Takeshita, K. (2018). Extraction behavior of lanthanides by a novel ionic liquid including N,N,N¤,N¤-Tetrakis(2-pyridylmethyl)-1,3-diaminopropane-2-amido structure: A softhard donor combined strategy. Chemistry Letters, 47(6), 732-735. https://doi.org/10.1246/cl.180195