2020
DOI: 10.1039/d0ra02212h
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Switching Xe/Kr adsorption selectivity in modified SBMOF-1: a theoretical study

Abstract: The separation of Xe/Kr mixtures in used nuclear fuel (UNF) has attracted lots of attention, but no report on the adsorption and separation of Kr from mixed Kr/Xe at room temperature can be found.

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Cited by 21 publications
(12 citation statements)
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“…Note that the Lennard-Jones parameters for all simulations are collected in Table S1. Moreover, the equilibrium selectivity S Kr/Xe was calculated according to eq where x i and y i denote the mole fractions of species i in the adsorbed and bulk phases.…”
Section: Computational Detailsmentioning
confidence: 99%
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“…Note that the Lennard-Jones parameters for all simulations are collected in Table S1. Moreover, the equilibrium selectivity S Kr/Xe was calculated according to eq where x i and y i denote the mole fractions of species i in the adsorbed and bulk phases.…”
Section: Computational Detailsmentioning
confidence: 99%
“…In addition, all the GCMC simulations were carried out with the RASPA program . We consider that 100,000 equilibration and production cycles in the current work used in the GCMC method with the RASPA program are reasonable, since the equilibration and production cycles used in many reports ,,, are equal to or less than those of the current work. Moreover, the fluctuation method was implemented to calculate adsorption heat Q st using eq where R , T , U , N , and brackets are the gas constant, temperature, energy, number of particles, and ensemble average, respectively.…”
Section: Computational Detailsmentioning
confidence: 99%
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“…used a computational screening approach to predict that calcium-based nanoporous MOF, SBMOF-1, was one of the most effective MOFs for Xe adsorption. Column breakthrough experiments conducted at room temperature showed a high uptake capacity of 11.5 mmol kg –1 even in the presence of water vapour [ 70 ]. The high uptake capacity of this MOF was attributed to the optimal pore size and the dense wall of the MOF structure.…”
Section: Sequestration Of Radionuclides By Mofsmentioning
confidence: 99%
“…The UFF force field was applied to describe the atoms of adsorbent, while the TraPPE force field was used for the krypton and xenon atoms, which have been successfully employed to describe the adsorption of Kr and Xe on MOF materials . Our group , also utilized such force fields to describe UTSA-280 and Mg-SBMOF-1 on the Xe/Kr selective adsorption. The high-throughput GCMC simulations in this work were performed with the HT-CADSS program.…”
Section: Computational Detailsmentioning
confidence: 99%