The Stability Of Sulfide Sorbents Based On Silica In Aqueous Media. Part I. Sba-15 Matrix

The chemical and thermal stability of the sulfide-functionalized (R-S-R' type) sorbents based on SBA15 mesoporous mesostructured silica have been investigated by physico-chemical methods. It has been found that the material treatment in acid, neutral and alkaline conditions at the boiling temperature result in insignificant changes in structural, textural and sorption characteristics, showing sorbent total losses about 20 % mass. The grafted functional layer is saved. The sorbents obtained are able to work over a long period of time in a variety of technological solutions and are not inferior to wellknown commercial sorbents with functional groups.