Abstract
Radioactive iodine isotopes that are produced in nuclear power plants and used in medical research institutes could be a serious threat to the health of many people if accidentally released to the environment because the thyroid gland can absorb and concentrate them from a liquid. For this reason, uptake of iodide anions was investigated on microrosette-like δBi2O3 (MR-δ-Bi2O3). The MR-δ-Bi2O3 adsorbent showed a very high uptake capacity of 1.44 mmol g-1 by forming insoluble Bi4I2O5 phase. The MR-δ-Bi2O3 also displayed fast uptake kinetics and could be easily separated from a liquid after use because of its novel morphology. In addition, the adsorbent showed excellent selectivity for I- anions in the presence of large concentrations of competitive anions such as Cl- and CO32-, and could work in a wide pH range of 4-11. This study led to a new and highly efficient Bi-based adsorbent for iodide capture from solutions.
Original language | English (US) |
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Pages (from-to) | 16082-16090 |
Number of pages | 9 |
Journal | ACS Applied Materials and Interfaces |
Volume | 6 |
Issue number | 18 |
DOIs | |
State | Published - Sep 24 2014 |
All Science Journal Classification (ASJC) codes
- General Materials Science