Removal of Xenon (Xe) and Krypton (Kr) from in parts per million (ppm) levels were demonstrated for the first time using two well known metal-organic frameworks (MOFs), HKUST-1 and Ni/DOBDC. Results of an activated carbon were also included for comparison. Ni/DOBDC has higher Xe/Kr selectivities than those of the activated carbon. Moreover, results show that the Ni/DOBDC and HKUST-1 can selectively adsorb Xe and Kr from air even at 1000 ppm concentration. This shows a promising future for MOFs in a radioactive nuclides separation from spent fuel.
Revised: February 25, 2013 |
Published: August 7, 2012
Citation
Liu J., P.K. Thallapally, and D.M. Strachan. 2012.Metal-Organic Frameworks for Removal of Xe and Kr from Nuclear Fuel Reprocessing Plants.Langmuir 28, no. 31:11584-11589.PNNL-SA-86305.doi:10.1021/la301870n