التفاصيل البيبلوغرافية
| العنوان: |
Selective Capture Mechanism of Radioactive Thorium from Highly Acidic Solution by a Layered Metal Sulfide |
| المؤلفون: |
Lei Xu (78676), Chao Xu (201376), Hongliang Bao (1882066), Ioannis Spanopoulos (1367691), Weijun Ke (1591930), Xue Dong (545412), Chengliang Xiao (1598023), Mercouri G. Kanatzidis (1350288) |
| سنة النشر: |
2021 |
| المجموعة: |
Smithsonian Institution: Digital Repository |
| مصطلحات موضوعية: |
Biophysics, Biochemistry, Molecular Biology, Neuroscience, Hematology, Environmental Sciences not elsewhere classified, Astronomical and Space Sciences not elsewhere classified, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, Information Systems not elsewhere classified, KInSn 2 S 6, Layered Metal Sulfide Thorium, 0.1 M HNO 3 solution, Selective Capture Mechanism, KMS, acidic solutions |
| الوصف: |
Thorium as a potential nuclear fuel for the next-generation thorium-based molten salt reactors holds significant environmental and economic promise over the current uranium-based nuclear reactors. However, because thorium (Th 4+ ) usually coexists with other rare earth elements, alkali or alkaline earth metals in minerals, or highly acidic radioactive waste, seeking acid-resistant sorbents with excellent selectivity, high capacity, and fast removal rate for Th 4+ is still a challenging task. In this work, we investigated a robust layered metal sulfide (KInSn 2 S 6 , KMS-5) for Th 4+ removal from strong acidic solutions. We report that KMS-5 could capture Th 4+ from a 0.1 M HNO 3 solution with extremely high efficiency (∼99.9%), fast sorption kinetics (equilibrium time < 10 min), and large distribution coefficient (up to 1.5 × 10 6 mL/g). Furthermore, KMS-5 exhibited excellent sorption selectivity towards Th 4+ in the presence of large amounts of competitive metal ions like Eu 3+ , Na + , and Ca 2+ . This extraordinary capture property for Th 4+ is attributed to the facile ion exchange of Th 4+ with K + in the interlayers and subsequent formation of a stable coordination complex via Th–S bonds. These results indicate that KMS-5 is a promising functional sorbent for the effective capture of Th 4+ from highly acidic solutions. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
unknown |
| Relation: |
https://figshare.com/articles/journal_contribution/Selective_Capture_Mechanism_of_Radioactive_Thorium_from_Highly_Acidic_Solution_by_a_Layered_Metal_Sulfide/15075233 |
| DOI: |
10.1021/acsami.1c12004.s001 |
| الاتاحة: |
https://doi.org/10.1021/acsami.1c12004.s001 |
| Rights: |
CC BY-NC 4.0 |
| رقم الانضمام: |
edsbas.CA7657D4 |
| قاعدة البيانات: |
BASE |