Kinetics and dynamics of the reduction of oxygen dissolved in water by metal-ion exchanger nanocomposites differing in the nature (Ag, Cu, Bi, Ni), quantitative content of the introduced metal, and ionic form of the matrix were studied. It is shown that the process of oxygen absorption occurs to the fullest extent with the copper-containing nanocomposite. As the content of the metal increases, the amount of oxygen reduced by a single grain and granular bed grows and reaches the limiting values. It was found on this basis that the material with a copper capacity of 5.0 ± 0.5 mequiv cm−3 in the H+ form is the most efficient for deep removal of molecular oxygen from water. The advisability of using the nanocomposite with the suggested parameters for deep deoxygenation of water in a closed system was confirmed by experiments and calculations.
Russian Journal of Applied Chemistry – Springer Journals
Published: Mar 3, 2015
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