Abstract
Activation of the surface of cotton fabrics before obtaining a chemical copper film is recommended to be carried out by precipitation of dispersed copper particles. For this purpose, physical and chemical processes occurring in thin layers of copper chloride solutions under the influence of the visible spectrum of electromagnetic solar radiation are used. In this case, copper chlorides interact with cellulose, which is the main component of the fabric, forming copper monochloride. It is shown that this interaction occurs from exposure to sunlight. After that, the fabric is moistened with a solution of ascorbic acid and again exposed to solar radiation. Electrons located in a semiconductor under the influence of solar photons receive additional energy and oxidize the copper element, and the free spaces that appear in this case are filled with electrons depending on the oxidation of ascorbic acid. As a result of these processes, a shell containing copper particles that can catalyze the chemical copper is formed on the surface of the tissue.
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