Catalysts based on carbon material Sibunit for deep oxidation of organic toxicants in aqueous solutions. (1) The surface properties of oxidized Sibunit
Abstract
There is result presentation of the first time to conduct systematic studies of the effect of conditions of oxidative treatment promising for oxidative treatment of industrial waste carbon material series Sibunit on the chemical composition of its surface and catalytic properties in reactions of deep oxidation of organic toxicants in aqueous solutions. In this first article, we consider the modification of surface properties and texture «Sibunit-4» with using different methods of oxidative treatment and using as oxidants nitric acid, sodium hypochlorite, hydrogen peroxide and oxygen. Chemical state of the oxidized Sibunit and its texture is investigated by complex of physical and chemical methods (XPS, acid-base titration with bases of varying strength, by pH measuring of the suspension and the point of zero charge, low-temperature adsorption of N2). It is shown that, depending on the method of oxidative treatment Sibunit we can get the samples, which differ not only concentration but also the nature of oxygen-containing groups on the surface.
About the Authors
O. P. TaranRussian Federation
E. M. Polyanskaya
Russian Federation
O. L. Ogorodnikova
Russian Federation
C. Descorme
France
M. Besson
France
V. N. Parmon
Russian Federation
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Review
For citations:
Taran O.P., Polyanskaya E.M., Ogorodnikova O.L., Descorme C., Besson M., Parmon V.N. Catalysts based on carbon material Sibunit for deep oxidation of organic toxicants in aqueous solutions. (1) The surface properties of oxidized Sibunit. Kataliz v promyshlennosti. 2010;(6):48-54.
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