Abstract
The aim of this work is the synthesis of composite materials based on highly dispersed zinc oxide and the study of the effect of synthesis conditions on their composition and structure. Finely dispersed zinc oxide was prepared by a thermal decomposition of products of ZnCl2 and (NH4)2CO3 interaction. ZnO nanocomposite materials modified by silver were synthesized by chemical and photochemical reduction of silver salts in a zinc oxide matrix. It is shown that, in the case of chemical reduction, Ag/ZnO nanocomposites with an average silver particle size of 22 nm are obtained. When using the photochemical method of reduction of silver ions, the effect of the ratio of components on the morphology of the samples was noted: at a ratio of ZnO:AgNO3:NaCl - 1:0.5:0.5, the formation of Ag/AgCl/ZnO nanocomposites is observed, with an increase in the silver salt content, the formation of silver nanoparticles is not observed, and AgCl/ZnO nanocomposites are formed. The high bactericidal activity of Ag/ZnО was shown.
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Schedule a callMore From: Вестник Пермского университета. Серия «Химия» = Bulletin of Perm University. CHEMISTRY
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