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The influence of the nature of a silicon-containing component used in synthesis of the composite based on titanium phosphate on its composition and sorption properties has been studied using physicochemical methods of analysis. The relationship between the structural modifications of the silicon-containing phase formed in a solution of titanium(IV) sulfate and the sorption properties of the composite ion exchanger thus obtained has been established. It has been shown that the presence of amorphous silica in the composite sorbent favors an increase in its sorption capacity with respect to nickel cations, which is due to the adsorption processes occurring on the surface of the active dopant.
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Маслова et al. (2011) studied this question.
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