Journal
APPLIED SURFACE SCIENCE
Volume 638, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2023.157951
Keywords
CN monolayers; Ca decoration; CO 2 capture; DFT; GCMC
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The ability of metal-embedded CN nanosheets to capture carbon dioxide was evaluated using Density Functional Theory (DFT) and Grand Canonical Monte Carlo (GCMC) simulations. The study found that Ca-embedded CN nanosheets could evenly adsorb six CO2, with a capture amount of 57.52 wt% according to computational results. The average adsorption energy of CO2 ranged from -0.204 eV to -0.452 eV. Therefore, the Ca@CN monolayers are considered ideal materials for CO2 capture.
With the increasing severity of global warming, reducing carbon emissions has become a worldwide concern. To effectively capture carbon dioxide, the development of high capacity storage materials is the current core content. In this study, the ability of metal-embedded CN nanosheets to capture carbon dioxide was systematically evaluated by Density Functional Theory (DFT) and Grand Canonical Monte Carlo (GCMC) simulations. Ca entities can be evenly adsorbed in the center of CN holes and Ca-embedded CN nanosheets can capture six CO2, with a capture amount of 57.52 wt% showed by the computation results. The average adsorption energy of CO2 ranges from -0.204 eV to -0.452 eV. Therefore, the current findings indicate that the Ca@CN monolayers are ideal materials for CO2 capture.
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