Patterns of the Formation of Antimicrobial Micro/Nanocomposites during the Oxidation of Bimetallic Al/Zn Nanoparticles
- 作者: Lozhkomoev A.1, Bakina O.1, Glazkova E.1, Svarovskaya N.1, Lerner M.1
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隶属关系:
- Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
- 期: 卷 92, 编号 12 (2018)
- 页面: 2530-2534
- 栏目: Physical Chemistry of Nanoclusters and Nanomaterials
- URL: https://journals.rcsi.science/0036-0244/article/view/170261
- DOI: https://doi.org/10.1134/S0036024418120270
- ID: 170261
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详细
Porous composites of different phase composition are synthesized via oxidation in a water–ethanol mixture of bimetallic Al/Zn nanoparticles obtained through a joint electrical explosion of aluminum and zinc wires in an argon atmosphere. It is found that the oxidation of aluminum and the formation of boehmite nanosheets proceed in solutions containing 7‒20 wt % of water. At water contents over 20 wt %, the almost complete oxidation of aluminum is followed by the onset of zinc oxidation, resulting in the formation of composites containing boehmite nanosheets and hexagonal plates enriched with zinc oxide. Composites synthesized in this way display high antimicrobial activity against bacteria, due mainly to the release of Zn2+ ions into the solution. The greatest antimicrobial activity is observed in composites that simultaneously contain AlOOH, Al, ZnO, and Zn phases. The strong migration of Zn2+ ion is due to the structure of these composites, in which the active zinc surface grows as a result of the availability of ZnO plates located between the boehmite nanosheets. The boehmite nanosheets ensure stability of the composite structure and electrostatic interaction with bacteria.
作者简介
A. Lozhkomoev
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Email: ovbakina@ispms.tsc.ru
俄罗斯联邦, Tomsk, 634055
O. Bakina
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
编辑信件的主要联系方式.
Email: ovbakina@ispms.tsc.ru
俄罗斯联邦, Tomsk, 634055
E. Glazkova
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Email: ovbakina@ispms.tsc.ru
俄罗斯联邦, Tomsk, 634055
N. Svarovskaya
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Email: ovbakina@ispms.tsc.ru
俄罗斯联邦, Tomsk, 634055
M. Lerner
Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences
Email: ovbakina@ispms.tsc.ru
俄罗斯联邦, Tomsk, 634055