Journal
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
Volume 93, Issue 3, Pages 528-533Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0036024419030166
Keywords
silver nanoparticles; TiO2 nanoparticles; sepiolite nanofibers; nanocomposites; solvothermal method; antibacterial activity
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Funding
- key science and technology projects program of PR China [2016YFC0700902]
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A novel Ag-TiO2-sepiolite antibacterial nanocomposite was prepared by a one-pot solvothermal method in acetic acid-water solution. The ternary nanostructures consist of Ag-decorated TiO2 nanoparticles (NPs) supported with sepiolite nanofibers. Sepiolite served as a template for reducing the agglomeration of TiO2 NPs and improving the interface reactions between the nanocomposite and bacteria cells. Ag NPs were introduced to enhance the absorption of visible light, and suppress the recombination of electron-hole pair. The synergistic effects of TiO2, Ag NPs and sepiolite nanofibers led to the superior antibacterial activity of the Ag-TiO2-sepiolite nanocomposite against Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus.
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