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Silver Nanomaterial-Immobilized Desalination Systems for Efficient Removal of Radioactive Iodine Species in Water.
- Source :
-
Nanomaterials (Basel, Switzerland) [Nanomaterials (Basel)] 2018 Aug 26; Vol. 8 (9). Date of Electronic Publication: 2018 Aug 26. - Publication Year :
- 2018
-
Abstract
- Increasing concerns regarding the adverse effects of radioactive iodine waste have inspired the development of a highly efficient and sustainable desalination process for the treatment of radioactive iodine-contaminated water. Because of the high affinity of silver towards iodine species, silver nanoparticles immobilized on a cellulose acetate membrane (Ag-CAM) and biogenic silver nanoparticles containing the radiation-resistant bacterium Deinococcus radiodurans (Ag-DR) were developed and investigated for desalination performance in removing radioactive iodines from water. A simple filtration of radioactive iodine using Ag-CAM under continuous in-flow conditions (approximately 1.5 mL/s) provided an excellent removal efficiency (>99%) as well as iodide anion-selectivity. In the bioremediation study, the radioactive iodine was rapidly captured by Ag-DR in the presence of high concentration of competing anions in a short time. The results from both procedures can be visualized by using single-photon emission computed tomography (SPECT) scanning. This work presents a promising desalination method for the removal of radioactive iodine and a practical application model for remediating radioelement-contaminated waters.
Details
- Language :
- English
- ISSN :
- 2079-4991
- Volume :
- 8
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- Nanomaterials (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 30149661
- Full Text :
- https://doi.org/10.3390/nano8090660