PHOTOCHEMICAL REDUCTION OF COPPER AND SILVER IONS ON CELLULOSE-CONTAINING FABRICS
Sataev M.S. Koshkarbaeva Sh.T. Amanbaeva K.B. Abdurazova P.A. Assilbekova G.T. Raiymbekov Y.B. Urazkeldieva D.
January-March 2022Rasayan Journal of Chemistry, c/o Dr. Pratima Sharma
Rasayan Journal of Chemistry
2022#15Issue 131 - 40 pp.
The article presents the research results on obtaining thin films of copper (II) chloride or silver nitrate on the surface of cotton fabrics. It has been demonstrated that end links contained in cellulose in the amount of a few percent are exposed to photooxidation. Photooxidation of the end links is associated with the presence of aldehyde groups, therein providing a reducing ability to cellulose. This leads to the reduction of silver nitrate and the formation of elemental silver; thus, copper (II) chloride is reduced to copper monochloride with a partial content of elemental copper. Copper monochloride is a binary semiconductor; this allows producing a surface film containing elemental copper only using additional photochemical treatment with ascorbic acid. The experiments showed that the proportion of final cellulose molecules involved in photochemical reactions was 0.98 % for the production of copper-containing films and 0.47 % for silver-containing films. From SEM images, the films contain uniformly distributed globular particles 100-600 nm in diameter.
Copper (ІІ) Chloride , Cotton Fabric , Elemental Copper , Elemental Silver , End Links of Cellulose , Silver Nitrate
Text of the article Перейти на текст статьи
Department of Chemical Technology of Inorganic Substances, M.Auezov South Kazakhstan University, Shymkent, 160000, Kazakhstan
Department of Chemical Technology of Inorganic Substances
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026