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Ultrasonic-assisted electrodeposition of Cu-Sn-TiO2 nanocomposite coatings with enhanced antibacterial activity |
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| Institution: | 1. Soft Matter Nanostructures Group, Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, PL 30-239 Krakow, Poland;2. Research and Development Center of Technology for Industry, 00-120 Warsaw, Poland;3. Department of Chemistry, Electrochemical Production Technology and Materials for Electronic Equipment, Belarusian State Technological University, 220006 Minsk, Belarus;4. Department Biotechnology, Belarusian State Technological University, 220006 Minsk, Belarus;5. Department of Molecular Physics, Lodz University of Technology, PL 90-924 Lodz, Poland;6. Department of Electrochemistry, Corrosion and Materials Engineering, Gdansk University of Technology, PL 80-233 Gdansk, Poland;7. Institute of Nanotechnology and Materials Engineering, Faculty of Applied Physics and Mathematics and Advanced Materials Center, Gdansk University of Technology, PL 80-233 Gdansk, Poland;8. Department of Physical, Colloid and Analytical Chemistry, Belarusian State Technological University, 220006 Minsk, Belarus |
| Abstract: | Copper-based coatings are known for their high antibacterial activity. In this study, nanocomposite Cu–Sn–TiO2 coatings were obtained by electrodeposition from an oxalic acid bath additionally containing 4 g/dm3 TiO2 with mechanical and ultrasonic agitation. Ultrasound treatment was performed at 26 kHz frequency and 32 W/dm3 power. The influence of agitation mode and the current load on the inclusion and distribution of the TiO2 phase in the Cu–Sn metallic matrix were evaluated. Results indicated that ultrasonic agitation decreases agglomeration of TiO2 particles and allows for the deposition of dense Cu–Sn–TiO2 nanocomposites. It is shown that nanocomposite Cu–Sn–TiO2 coatings formed by ultrasonic-assisted electrodeposition exhibit excellent antimicrobial properties against E. coli bacteria. |
| Keywords: | Nanocomposite coating Ultrasonic-assisted electrodeposition Electrochemical properties Antibacterial properties |
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