Fullerol-facilitated transport of copper ions in water-saturated porous media: Influencing factors and mechanism

Influence of Oxygen-Containing Functional Groups on the Environmental Properties, Transformations, and Toxicity of Carbon Nanotubes

“…Unlike organic molecules, metal cations have stronger interactions with the oxygen-containing functional groups of CNTs and other CNMs than with the sp 2 carbon system. ,− ,− Because of to their low oxygen content (typically <3 at. %), n-C 60 materials have limited adsorption sites for metal ions, and as such have not been evaluated as adsorbents for metal ion removal; however, fullerenol (C 60 (OH) n ) has been shown to bind Cu 2+ ions and increase their transport through porous media (i.e., facilitated transport) . Again, the most systematic studies on the impact of surface oxides have been performed using GO/rGO materials.…”

“…%), n-C 60 materials have limited adsorption sites for metal ions, and as such have not been evaluated as adsorbents for metal ion removal; however, fullerenol (C 60 (OH) n ) has been shown to bind Cu 2+ ions and increase their transport through porous media (i.e., facilitated transport). 435 Again, the most systematic studies on the impact of surface oxides have been performed using GO/rGO materials. Wang and Chen reduced GO materials using different chemical and thermal methods to vary the surface oxide content and character of the resultant rGO and used these materials to show that the adsorption of metal cations (here, Cd 2+ ) is highly dependent on the presence of oxygencontaining functional groups.…”