Collection of lanthanides and actinides from natural waters with conventional and nanoporous sorbents.
Environ Sci Technol
; 46(20): 11251-8, 2012 Oct 16.
Article
in En
| MEDLINE
| ID: mdl-23030048
ABSTRACT
Effective collection of trace-level lanthanides and actinides is advantageous for recovery and recycling of valuable resources, environmental remediation, chemical separations, and in situ monitoring. Using isotopic tracers, we have evaluated a number of conventional and nanoporous sorbent materials for their ability to capture and remove selected lanthanides (Ce and Eu) and actinides (Th, Pa, U, and Np) from fresh and salt water systems. In general, the nanostructured materials demonstrated a higher level of performance and consistency. Nanoporous silica surface modified with 3,4-hydroxypyridinone provided excellent collection and consistency in both river water and seawater. The MnO(2) materials, in particular the high surface area small particle material, also demonstrated good performance. Other conventional sorbents typically performed at levels below the nanostructured sorbents and demonstrate a larger variability and matrix dependency.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Water Pollutants, Chemical
/
Water Pollutants, Radioactive
/
Actinoid Series Elements
/
Lanthanoid Series Elements
/
Nanostructures
/
Environmental Restoration and Remediation
Language:
En
Journal:
Environ Sci Technol
Year:
2012
Document type:
Article
Affiliation country:
United States