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- Title
A Novel Vanadosilicate with Hexadeca-Coordinated Cs<sup>+</sup> Ions as a Highly Effective Cs<sup>+</sup> Remover.
- Authors
Datta, Shuvo Jit; Moon, Won Kyung; Choi, Do Young; Hwang, In Chul; Yoon, Kyung Byung
- Abstract
The effective removal of 137Cs+ ions from contaminated groundwater and seawater and from radioactive nuclear waste solutions is crucial for public health and for the continuous operation of nuclear power plants. Various 137Cs+ removers have been developed, but more effective 137Cs+ removers are still needed. A novel microporous vanadosilicate with mixed-valence vanadium (V4+ and V5+) ions is now reported, which shows an excellent ability for Cs+ capture and immobilization from groundwater, seawater, and nuclear waste solutions. This material is superior to other known materials in terms of selectivity, capacity, and kinetics, and at very low Cs+ concentrations, it was found to be the most effective material for the removal of radioactive Cs+ ions under the test conditions. This novel vanadosilicate also contains hexadeca-coordinated Cs+ ions, which corresponds to the highest coordination number ever described.
- Subjects
CESIUM ions; COORDINATE covalent bond; GROUNDWATER pollution; MARINE pollution; RADIOACTIVE wastes; RADIOACTIVE substances removal in water purification
- Publication
Angewandte Chemie, 2014, Vol 126, Issue 28, p7331
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201402778