Capture of Radioactive Cesium and Iodide Ions from Water by Using Titanate Nanofibers and Nanotubes

Capture of Radioactive Cesium and Iodide Ions from Water by Using Titanate Nanofibers and Nanotubes

Going down the tubes: The rapid uptake of 137Cs+ ions in sodium trititanate nanofibers (T3NF; see picture) and nanotubes (T3NT) triggers a phase transition or deformation of the thin titanate layers. Ag2O nanocrystals (5–10 nm) were bound to the surface of the nanostructures and efficiently captured...

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Veröffentlicht in:Angewandte Chemie International Edition 2011-11, Vol.50 (45), p.10594-10598
Hauptverfasser: Yang, Dongjiang, Sarina, Sarina, Zhu, Huaiyong, Liu, Hongwei, Zheng, Zhanfeng, Xie, Mengxia, Smith, Suzanne V., Komarneni, Sridhar
Format: Artikel
Sprache:eng
Schlagworte:
cesium
iodine
nanostructures
radioactive ions
titanates
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Beschreibung
Zusammenfassung:Going down the tubes: The rapid uptake of 137Cs+ ions in sodium trititanate nanofibers (T3NF; see picture) and nanotubes (T3NT) triggers a phase transition or deformation of the thin titanate layers. Ag2O nanocrystals (5–10 nm) were bound to the surface of the nanostructures and efficiently captured I− anions (ca. 4.5 mmol per gram of sorbent) from aqueous solutions by forming an AgI precipitate on the titanates.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201103286