Adsorptive Separation and Sequestration of Krypton, I and C14 on Diamond Nanoparticles
Abstract
The objective of this research proposal was to address the separation and sequestration of Kr and I from each other using nano-sized diamond particles and retaining these in diamond until they decay to the background level or can be used as a byproduct. Following removal of Kr and I, an adsorbent will be used to adsorb and store CO2 from the CO2 rich stream. A Field Enhanced Diffusion with Optical Activation (FEDOA-a large scale process that takes advantage of thermal, electrical, and optical activation to enhance the diffusion of an element into diamond structure) was used to load Kr and I on micron or nano sized particles having a larger relative surface area. The diamond particles can be further increased by doping it with boron followed by irradiation in a neutron flux. Previous studies showed that the hydrogen storage capacity could be increased significantly by using boron-doped irradiated diamond particles. Diamond powders were irradiated for a longer time by placing them in a quartz tube. The surface area was measured using a Quantachrome Autosorb system. No significant increase in the surface area was observed. Total surface area was about 1.7 m2/g. This suggests the existence of very minimal pores. Interestinglymore »
- Authors:
-
- Univ. of Missouri, Columbia, MO (United States)
- Publication Date:
- Research Org.:
- Battelle Energy Alliance, LLC, Idaho Falls, ID (United States)
- Sponsoring Org.:
- USDOE Office of Nuclear Energy (NE)
- OSTI Identifier:
- 1178432
- Report Number(s):
- 09-825
09-825
- DOE Contract Number:
- AC07-05ID14517
- Resource Type:
- Technical Report
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Ghosh, Tushar, Loyalka, Sudarsha, Prelas, Mark, and Viswanath, Dabir. Adsorptive Separation and Sequestration of Krypton, I and C14 on Diamond Nanoparticles. United States: N. p., 2015.
Web. doi:10.2172/1178432.
Ghosh, Tushar, Loyalka, Sudarsha, Prelas, Mark, & Viswanath, Dabir. Adsorptive Separation and Sequestration of Krypton, I and C14 on Diamond Nanoparticles. United States. doi:10.2172/1178432.
Ghosh, Tushar, Loyalka, Sudarsha, Prelas, Mark, and Viswanath, Dabir. Tue .
"Adsorptive Separation and Sequestration of Krypton, I and C14 on Diamond Nanoparticles". United States.
doi:10.2172/1178432. https://www.osti.gov/servlets/purl/1178432.
@article{osti_1178432,
title = {Adsorptive Separation and Sequestration of Krypton, I and C14 on Diamond Nanoparticles},
author = {Ghosh, Tushar and Loyalka, Sudarsha and Prelas, Mark and Viswanath, Dabir},
abstractNote = {The objective of this research proposal was to address the separation and sequestration of Kr and I from each other using nano-sized diamond particles and retaining these in diamond until they decay to the background level or can be used as a byproduct. Following removal of Kr and I, an adsorbent will be used to adsorb and store CO2 from the CO2 rich stream. A Field Enhanced Diffusion with Optical Activation (FEDOA-a large scale process that takes advantage of thermal, electrical, and optical activation to enhance the diffusion of an element into diamond structure) was used to load Kr and I on micron or nano sized particles having a larger relative surface area. The diamond particles can be further increased by doping it with boron followed by irradiation in a neutron flux. Previous studies showed that the hydrogen storage capacity could be increased significantly by using boron-doped irradiated diamond particles. Diamond powders were irradiated for a longer time by placing them in a quartz tube. The surface area was measured using a Quantachrome Autosorb system. No significant increase in the surface area was observed. Total surface area was about 1.7 m2/g. This suggests the existence of very minimal pores. Interestingly it showed hysteresis upon desorption. A reason for this may be strong interaction between the surface and the nitrogen molecules. Adsorption runs at higher temperatures did not show any adsorption of krypton on diamond. Use of a GC with HID detector to determine the adsorption capacity from the breakthrough curves was attempted, but experimental difficulties were encountered.},
doi = {10.2172/1178432},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 31 00:00:00 EDT 2015},
month = {Tue Mar 31 00:00:00 EDT 2015}
}
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Investigation of novel adsorptive-separation methods for removal of trace heavy metals from polluted areas. Technical report
The removal of trace amounts of cadmium and zinc from waste-water samples from the Bunker Hill mine and from synthetic waste-waters was evaluated. The heavy metals were chelated with the surfactants sodium lauryl sulfate, sodium lauryl benzene sulfate, and cetyl pyridinium chloride. The chelated metals were then separated by the generation of a form with sparged air or dissolved air. As much as 95% of the metal entering the foam generation unit was removed and carried out with the foam. The foam constituted about 25% of the feed. The removal efficiency was correlated with feed flow rate and foam drainagemore »