| 2017 №01 (03) |
DOI of Article 10.15407/sem2017.01.04 |
2017 №01 (05) |
Electrometallurgy Today (Sovremennaya Elektrometallurgiya), 2017, #1, 22-28 pages
Electron beam technology of producing condensates Ag–NaCl and physical-chemical properties of colloid system on their base
Didikin G.G.1, Andrusishina I.N.2, Litvin S.E.1, Krushinskaya L.A.1, Grabin V.V.1
1E.O. Paton Electric Welding Institute, NASU. 11 Kazimir Malevich Str., 03680, Kiev, Ukraine. E-mail: office@paton.kiev.ua
2Institute of Occupational Medicine, NAMSU
On the base of porous condensates of NaCl–Ag composition, synthesized by the electron beam evaporation and condensation in vacuum, the stable water colloid systems with silver nanoparticles were produced. Stabilization of nanoparticles in water colloids was made by using the human serum albumine. With adding of silver in the form of refined condensate NaCl–Ag in the amount of 100 mg/l into water (0.1…1.0 %) solution of albumine the fraction of nanoparticles of silver, transferred into colloid in the obtained heterogeneous system is determined by the concentration of albumine in the solution and solution acidity (pH). Stable value of average size of particles (6…10 nm) in time and their maximum fraction are attained in water colloid solution, containing 110 mg/l of albumine at its acidity in the range of pH = 7.1…7.7. With increase in pH of medium the fraction of silver nanoparticles in colloid was decreased to 2 mg/l and remained unchanged up to pH = 10. Ref. 23, Figures 7.
Keywords: EB PVD; condensates; nanoparticles; silver; albumine; colloid; acidity
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