Funct. Mater. 2019; 26 (4): 838-844.
Binary co-deposited mixtures of silver and magnesium phosphates and silver and copper(II) phosphates
1National University of Food Technologies, 68 Volodymyrska Str., 01033 Kyiv, Ukraine 2National University of Life and Environmental Sciences of Ukraine, 17 Heroyiv Oborony Str., 03041 Kyiv, Ukraine 3V.Vernadsky Institute of General and Inorganic Chemistry, 32/33 Akademika Palladina Blvd., 02000 Kyiv, Ukraine
Mixtures of silver magnesium phosphates or silver copper(II) phosphates have been obtained from aqueous solutions of silver and magnesium or copper(II) nitrates and sodium hydrogenphosphate at the basic mixture ratios of [AgNO3]:[Me(NO3)2]:[Na2HPO4] = 1:1:1.7 (Me-Mg,Cu) and temperature of reacting solutions 80-90°C. The mixtures have been studied using chemical, thermogravimetric and X-ray diffraction analyses. The temperature ranges for dehydration and crystallization of X-ray amorphous phases and for interaction of silver and copper(II) phosphates with formation of double phosphate have been determined. The resulting mixtures have antimicrobial activity, thus may be applied for treatment of water. In addition, they act as catalysts of electrochemical processes (electrolytic water splitting, and anodic refinement of silver).
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