No abstract

Abstract. Molecular dynamics simulation has been empolyed to investigate microscopic structure and the adsorption performance of amide ions on the mica (001) surface in the vacuum. The results drawn from the computed interaction energies show that amides are more effective collectors for mica compared with quaternary amines. In addition to strong electrostatic attractions, the head group H atoms of the adsorbed amide ions can form hydrogen bonds to the bridging oxygen atoms on the mica surface.