Nanocomposites based on natural and synthetic zeolites and copper, which are characterized by a high specific surface area and are resistant to aggressive environments and successfully combine catalytic and antimicrobial properties, are a promising material for complex technologies for wastewater and/or natural water treatment. The study of various composite materials in which metal nanoparticles are immobilized on the surface of inert fillers allows for the production of relatively cheap and effective materials while preserving the unique properties of nanoparticles. Therefore, the aim of this work was to study the adsorption of copper ions by synthetic zeolite of the Na-A brand in order to optimize the conditions for the synthesis of metal-zeolite nanocomposites and to study the physicochemical, catalytic and antimicrobial properties of the obtained nanostructures. Cu2O nanoparticles were obtained by reducing Cu2+ ions adsorbed on zeolite with glucose in an alkaline medium. It was shown that the adsorption isotherm of Cu2+ ions is described by the Langmuir equation, and the ion exchange capacity of the zeolite is 1 mmol/g. Using scanning electron microscopy (SEM), X-ray energy di
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