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Article

  • Title

    Preparation of silver nanoparticles under the action of a plasma discharge and their antimicrobial properties: formation of clusters and silver particles

  • Authors

    Skiba Margaryta I.
    Pivovarov Alexandr A.
    Vorobyova V. І.

  • Subject

    CHEMISTRY. CHEMICAL ENGINEERING

  • Year 2018
    Issue 3(56)
    UDC 541.18.02; 546.57
    DOI 10.15276/opu.3.56.2018.08
    Pages 80 - 88
  • Abstract

    The obtaining of aqueous solutions of silver nanoparticles using a discharge of contact nonequilibrium low-temperature plasma is considered. The aim is to study the formation of clusters and silver particles in aqueous solutions under plasma discharge. The method of quantum mechanics, namely the theory of density functional, was used to determine the thermodynamic values of the formation of clusters of silver. The standard Gibbs free energy of formation of silver nanoparticles was calculated according to the Nernst equation. The investigations were carried out in a gas-liquid batch reactor with volume of 100 ml. The reactor pressure was 80±4 kPa. The current was maintained at 120±6 mA. The time of treatment was from 10 seconds till 14 minutes. The solutions were prepared by dissolving the argentums nitrate in distilled water with a predetermined ratio. Optical spectra of sols were recorded on the spectrophotometer UV-5800PC in the wavelength range 190…700 nm. Particle size of colloidal solutions was measured by means of the analyzer of particle size Zetasizer Nano-25 (Malvern Instruments Ltd., Malvern, England). Applying experimental and theoretical methods it was established that positively charged clusters of Ag4+2 and Ag8+2 structures are thermodynamically most probable and precede the formation of silver nanoparticles under the action of plasma discharge on an aqueous solution of silver nitrate. It was established that in the initial stages (up to 10 sec) the silver clusters of Ag4+2 and Ag8+2 structures with characteristic peaks λmak=265…325 nm are formed in silver nitrate aqueous solution under plasma discharge treated; silver nanoparticles with peaks λmak at 430…440 nm are formed after 10 sec – 7 minutes of processing. The kinetics of chemical transformations in aqueous solutions during plasmа-chemical treatment of aqueous solutions of silver nitrate was studied. It was established that the process of plasmа-chemical formation of silver nanoparticles is a first-order reaction. The antimicrobial activity of nanoparticles solution in relation to Gram-negative bacteria E. coli test microorganism was determined.

  • Keywords nanoparticles, silver, plasma, quantum-chemical calculation, clusters, thermodynamic potential, antimicrobial activity
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  • References

    1. Kholoud, M. M., Abou, E., Eftaiha, A., Al-Warthan, A., & Ammar, R. (2010). Synthesis and applica-tions of silver nanoparticles. Arabian Journal of Chemistry, 3, 135–140. DOI: 10.1016/j.arabjc.2010.04.008.
    2. Mahendra, R., Yadav, A., & Gade, A. (2009). Silver nanoparticles as a new generation of antimicrobi-als. Biotechnology Advances, 27, 76–83. DOI:10.1016/j.biotechadv.2008.09.002.
    3. Marambio-Jones, C., & Hoek, E.M.V. (2010). A review of the antibacterial effects of silver nano-materials and potential implications for human health and the environment. Journal of Nanoparticle Research, 12, 1531–1551.
    4. Krutyakov, Yu. A., Kudrinskiy, A. A., Olenin, A. Yu., & Lisichkin, G. V. (2008). Synthesis and proper-ties of silver nanoparticles: advances and prospects. Russ Chem Rev., 77, 233–257. 5. Genki, S., & Tomohiro, A. (2015). Synthesis using plasma generation in liquid. Journal of nanomateri-als, 16, 1–21. DOI: 10.1155/2015/123696.
    6. Mariotti1, D., & Sankaran, R M. (2010). Microplasmas for nanomaterials synthesis. J. Phys. D: Appl. Phys., 43, 1–22.
    7. Richmonds, C., & Mohan Sankaran, R. (2008). Plasma-liquid electrochemistry: Rapid synthesis of col-loidal metal nanoparticles by microplasma reduction of aqueous cations. Appl. Phys. Lett., 93, 385–388.
    8. Chen, Q., Kaneko, T., & Hatakeyama, R. (2012). Rapid synthesis of water-soluble gold nanoparticles with control of size and assembly using gas–liquid interfacial discharge plasma. Chemical Physics Let-ters, 521, 113–117. 9. Gyo Koo, Il., Seok Lee, M., Shim, J.H., Ahn, J.H., & Lee, W. M. (2005). Platinum nanoparticles prepared by a plasma-chemical reduction method. J. Mater. Chem., 15, 4125–4128.
    10. Pivovarov, A. A., Kravchenko, A. V., Tishchenko, A. P., Nikolenko, N. V., Sergeeva, O. V., Vo-rob’eva, M. I., & Treshchuk S. V. (2015). Contact nonequilibrium plasma as a tool for treatment of wa-ter and aqueous solutions: Theory and practice. Russian Journal of General Chemistry, 85, 1339–1350.
    11. Skіba, M., Pivovarov, A., Makarova, A., & Vorobyova, V. (2018). Plasma-Chemical Synthesis of Silver Nanoparticles in the Presence of Citrate. Chemistry Journal of Moldova, 13 (1), 7–14.
    12. Skіba, М. І., Pivovarov, О. А., Makarova, А. К., & Parkhomenko, V. D. (2018). One-pot synthesis of silver nanoparticles using nonequilibrium low temperature plasma in the presence of polyvinyl alco-hol. Voprosy khimii i khimicheskoi tekhnologii, 3, 113–120.
    13. Skiba, M. I., Pivovarov, A. A., Makarova, A. K., & Vorobyova, V. I. (2018). Plasmochemical prepa-ration of silver nanoparticles: thermodynamics and kinetics analysis of the process. Eastern-European Journal of Enterprise Technologies, 2, (6 (92)), 4–9.
    14. Baetzold, R. C. (2015). Silver–Water Clusters: A Theoretical Description of Agn(H2O)m for n=1–4; m=1–4. Journal Physical Chemistry, 119, 15, 8299–8309.
    15. Anak, B., Bencharif, M., & Rabilloud, F. (2014). Time-dependent density functional study of UV-visible absorption spectra of small noble metal clusters (Cun, Agn, Aun, n = 2–9, 20). RSC Advances, 4 (25), 13001–13011.
    16. Yang, M., Jackson, K. A., & Jellinek, J. (2006). First-principles study of intermediate size silver clus-ters: Shape evolution and its impact on cluster properties. The Journal of Chemical Physics, 125(14), 144308–8. DOI: 10.1063/1.2351818.
    17. Polynskaya, Y.G., Pichugina, D.A., & Kuz’menko, N.E. (2015). Correlation between electronic properties and reactivity toward oxygen of tetrahedral gold-silver clusters. Comput. Theor. Chem.,1055, 61–67.
    18. Harb, M., Rabilloud, F., Simon, D., Rydlo, A., & Lecouitre, S. (2008). Optical absorption of small sil-ver clusters: Agn, (n=4-22) // J. Chem. Phys., 129, 194108(1) − 194108(9). DOI: 10.1063/1.3013557.
    19. Ershov, B.G., Janata, E., Henglein, A., & Fojtic, A. (1993). Silver atoms and clusters in aqueous solu-tion: absorption spectra and the particle growth in the absence of stabilizing Ag+ ions II. J. Phys. Chem., 97, 4589–4594.
    20. Ivanova, O.S., & Zamborini, F.P. (2010). Size-dependent electrochemical oxidation of silver nanoparti-cles. J. Am. Chem. Soc., 132, 70–72.
    21. Levard, C., Matt Hotze, E., Lowry, G.V., & Brown, G.E. (2012). Environmental Transformations of Silver Nanoparticles: Impact on Stability and Toxicity. Environmental Science and Technology, 46, 6900–6914.
    22. Mijnendonckx, K., Leys, N., & Mahillon, J. (2013). Antimicrobial silver: uses, toxicity and potential for resistance. Biometal, 26 (4), 609–621.

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