Composites based on calcium phosphates and copper nanoparticles
O.N. Musskaya, V.K. Krut’ko, A.I. Kulak, E.N. Krutsko
Institute of General and Inorganic Chemistry of National Academy of Sciences of Belarus
Abstract: Copper nanoparticles were synthesized by the borohydride method using polymer stabilizers (polyethylene glycol, polyvinylpyrrolidone). It was found by optical spectroscopy that copper nanoparticles obtained at a molar ratio Cu / polymer of 1:(3–6) have the highest stability (up to 1.5 months). It was shown that in the absence of polymer or at its low content (molar ratio Cu / polymer 1 : 1), the resulting nanoparticles aggregate and a precipitate forms containing copper and its oxides (Cu2O , CuO). By mechanical mixing of amorphized calcium phosphates (in powder and gel form) and copper nanoparticles (in the form of a colloidal solution), a powder composite containing Ca19Cu2H2(PO4)14 and Cu2PO4OH phases was obtained. It was shown that during the co-precipitation of calcium phosphates and copper nanoparticles, copper ions are incorporated into the crystal lattice of calcium phosphates with the formation of mixed acidic and medium salts.
Keywords: amorphized calcium phosphates, hydroxyapatite, copper nanoparticles, polyvinylpyrrolidone, polyethylene glycol, composites
- Olga N. Musskaya – Ph. D., Assistant Professor, Leading Researcher, Laboratory of Photochemistry and Electrochemistry, Institute of General and Inorganic Chemistry of National Academy of Sciences of Belarus
- Valentina K. Krut’ko – Ph. D., Assistant Professor, Head of the Laboratory of Photochemistry and Electrochemistry, Institute of General and Inorganic Chemistry of National Academy of Sciences of Belarus
- Anatoly I. Kulak – Corresponding Member, D. Sc., Professor, Director, Institute of General and Inorganic Chemistry of National Academy of Sciences of Belarus
- Evgeny N. Krutsko – Researcher, Laboratory of Photochemistry and Electrochemistry, Institute of General and Inorganic Chemistry of National Academy of Sciences of Belarus
Musskaya, O.N. Composites based on calcium phosphates and copper nanoparticles / O.N. Musskaya, V.K. Krut’ko, A.I. Kulak, E.N. Krutsko // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2021. — I. 13. — P. 320-328. DOI: 10.26456/pcascnn/2021.13.320. (In Russian).
Full article (in Russian): download PDF file
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