Journal
COMPUTATIONAL MATERIALS SCIENCE
Volume 179, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.commatsci.2020.109677
Keywords
Polycyclic aromatic hydrocarbons; Carbon nanotube; Environmental contaminants; Density functional theory; Molecular dynamics simulation
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Funding
- National Natural Science Foundation of Liaoning province [20170540854]
- Virtual Lab for Medicinal Chemistry Education of Liaoning province
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Potential for increased toxicity known for polycyclic aromatic hydrocarbons (PAHs) is associated with adverse effects on growth, reproduction and mutagenicity. Carbon nanotube (CNT) could significantly enhance PAHs sorption in aqueous solutions, which offers a promising opportunity in water and air purification for the removal of environmental contaminants. Although the sorption of PAHs by carbon nanotube has been reported in many studies, the knowledge regarding their molecular mechanism at atomic level is still very limited. In this study, we integrate density functional theory (DFT) calculation, fully atomistic molecular dynamics (MD) simulation and binding free energy calculation to investigate the sorption mechanism of PAHs by carbon nanotube. The results would have important implications for the future application of carbon nanotube in the environmental pollution cleanup.
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