Surface State of Purolate Standard Activated Carbon after Sorption of Minerals

Abstract

Anthracite-based Purolate standard sorbent is studied before and after sorption of iron, manganese, sulfate, and nitrite ions, by thermal analysis, X-ray photoelectron spectroscopy, scanning electron microscopy, and nitrogen porosimetry. Correlations are established between the thermal decomposition indices, the mass loss in different temperature ranges, and the results of X-ray photoelectron spectroscopy (relative atomic concentrations in the surface layer of samples), scanning electron microscopy (analysis of microphotographs), and nitrogen porosimetry (specific surface values of the samples).