NEW METHOD FOR CALCULATING THE ADSORPTION OF NOBLE-GASES ON AMORPHOUSSURFACES

A new approach to calculating the equilibrium characteristics of the a dsorption of noble gases on the amorphous surfaces of adsorbents was d eveloped and applied to the Ar-TiO2(rutile) system. Intermolecular ads orbate-adsorbate interactions are taken into account for the nearest n eighbors in the quasi-chemical approximation. The lattice energy param eters of all interactions of the model are determined from the Lennard -Jones potential (12-6). The formation of amorphous TiO2(rutile) surfa ce includes completion of the surface layers and partial removal of th e surface oxygen ions. The quality of the amorphization procedure was confirmed by the experimentally measured heats and isotherms of adsorp tion of the system under study.