The physical and chemical characterization of a sulphur-impregnated active carbon, by combined adsorption and immersion techniques

A commercially available active carbon, impregnated with sulphur, has been characterized and compared to the original carbon by using adsorption and immersion techniques. The specific reaction of liquid CS₂ with sulphur, following the preadsorption of various amounts of n-nonane, shows that the accessibility of sulphur decreases rapidly. It is also found that the impregnated carbon becomes hydrophilic but, in the case of SO₂ adsorption, no change in adsorption capacity is detected.