- PII
- S0044457X25030121-1
- DOI
- 10.31857/S0044457X25030121
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 70 / Issue number 3
- Pages
- 402-410
- Abstract
- Bismuth-containing films on titanium were formed by single-stage plasma electrolytic oxidation (PEO) in pulsed mode in an electrolyte with dispersed particles containing metallic bismuth. The surface morphology and composition of the obtained films were studied by scanning electron microscopy, X-ray phase analysis, Energy-dispersive analysis and X-ray photoelectron spectroscopy. Modification of Ti/TiO2 films with bismuth leads to the appearance of anodic photocurrents in the visible region of the spectrum, a shift in the potentials of flat bands to the cathode region and an increase in the concentration of charge carriers. It is shown that the characteristics and properties of the obtained film composites are noticeably affected by the pulse duration t (0.02 or 0.05 s). At t = 0.02 s, films containing cubic particles with a diameter of 0.2 to 1 μm with an increased bismuth content are formed. Such films have a small band gap of 1.62 eV and exhibit the highest photoelectrochemical activity under the influence of visible light.
- Keywords
- плазменно-электролитическое оксидирование импульсный режим оксид титана висмут фотоактивные электроды
- Date of publication
- 17.09.2025
- Year of publication
- 2025
- Number of purchasers
- 0
- Views
- 15
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