Application of sorption-reagent materials in the technology of liquid radioactive waste treatment

Авраменко, В. А.; Sergienko, V. I.

doi:10.1134/s0040579516040035

Cited by 8 publications

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“…To dispose of the radioactive wastewater in nuclear power plants, scientists and engineers developed many dispose methods, including sorption (Avramenko et al 2016), (co) precipitation (Valsala et al 2011), ion exchange (Aleman 2008), solidification (Osmanlioglu 2014), and membrane separation (Sujish et al 2014). Among these methods, sorption is considered as one of the most cost-effective methods for removing radionuclides from radioactive wastewater.…”

Section: Introductionmentioning

confidence: 99%

Effects of phase, strain, pressure, vacancy, and doping on the adsorption of metallic radionuclides on monolayer 2H-MoS2

et al. 2020

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How to remove radionuclides from the radioactive wastewater quickly and efficiently is of great significance for mitigating the adverse effects of nuclear accident. Our previous researches have shown that metallic radionuclides (Cs + , Sr 2+ , and Ba 2+ ) can be chemisorbed on monolayer 2H-MoS 2 . To enhance the adsorption capacity of the monolayer 2H-MoS 2 to the metallic radionuclides, the effects of phase, strain, pressure, vacancy, and doping on the adsorption of the metallic radionuclides on the monolayer 2H-MoS 2 were investigated by using the first principles calculation method in this paper. The calculation results show that the adsorption energy of the metallic radionuclides on the monolayer 2H-MoS 2 is decreased by phase, strain, vacancy, and doping, while the pressure has little effect on the adsorption energy. The adsorption energy change indicates that the adsorption of the metallic radionuclides on the monolayer 2H-MoS 2 is enhanced by phase, strain, vacancy, and doping. The adsorption energy change is mainly contributed by the electron structure change, which caused by phase, strain, vacancy, and doping. Especially, the change of charge transfer between the metallic radionuclides and their nearest atoms on the monolayer 2H-MoS 2 is a very critical factor.

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