TiO2/Bi2O3 coatings formed by plasma electrolytic oxidation of titanium for photocatalytic applications
Abstract
TiO2 coatings modified by Bi2O3 particles were successfully formed by plasma electrolytic oxidation (PEO) process of titanium in supporting electrolyte (10 g/L Na3PO4·10H2O) with the addition of Bi2O3 particles. The morphology, crystal structure, chemical composition, and optical properties of formed PEO coatings were investigated by scanning electron microscopy, energy-dispersive spectroscopy, X-ray fluorescence, X-ray diffraction, X-ray photoelectron spectroscopy, UV–Vis diffuse reflectance spectroscopy, and photoluminescent techniques. The photodegradation of methyl orange under simulated sunlight condition was used to determine the potential of TiO2/Bi2O3 coatings in photocatalysis. The photocatalytic activity (PA) of TiO2/Bi2O3 coatings is higher than that of pure TiO2. PA of TiO2/Bi2O3 coatings is highly dependent on the amount of Bi2O3 particles in the supporting electrolyte and the highest PA was observed for TiO2/Bi2O3 coating formed in supporting electrolyte with the addition... of 1.2 g/L of Bi2O3 particles. Enhanced PA is related to the reduction of photo-generated electron/hole recombination rate as a result of TiO2 and Bi2O3 coupling.
Keywords:
oxidation / TiO2 / Bi2O3 / plasma electrolytic oxidation (PEO) / photocatalytic activitySource:
Journal of Materials Science: Materials in Electronics, 2022, 33, 7, 4467-4481Publisher:
- Springer
Funding / projects:
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-200026)
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200162 (University of Belgrade, Faculty of Physics) (RS-200162)
DOI: 10.1007/s10854-021-07637-0
ISSN: 0957-4522; 1573-482X
WoS: 000749091400005
Scopus: 2-s2.0-85123867322
Collections
Institution/Community
IHTMTY - JOUR AU - Stojadinović, Stevan AU - Radić, Nenad AU - Tadić, Nenad AU - Vasilić, Rastko AU - Tsanev, Aleksander PY - 2022 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/5602 AB - TiO2 coatings modified by Bi2O3 particles were successfully formed by plasma electrolytic oxidation (PEO) process of titanium in supporting electrolyte (10 g/L Na3PO4·10H2O) with the addition of Bi2O3 particles. The morphology, crystal structure, chemical composition, and optical properties of formed PEO coatings were investigated by scanning electron microscopy, energy-dispersive spectroscopy, X-ray fluorescence, X-ray diffraction, X-ray photoelectron spectroscopy, UV–Vis diffuse reflectance spectroscopy, and photoluminescent techniques. The photodegradation of methyl orange under simulated sunlight condition was used to determine the potential of TiO2/Bi2O3 coatings in photocatalysis. The photocatalytic activity (PA) of TiO2/Bi2O3 coatings is higher than that of pure TiO2. PA of TiO2/Bi2O3 coatings is highly dependent on the amount of Bi2O3 particles in the supporting electrolyte and the highest PA was observed for TiO2/Bi2O3 coating formed in supporting electrolyte with the addition of 1.2 g/L of Bi2O3 particles. Enhanced PA is related to the reduction of photo-generated electron/hole recombination rate as a result of TiO2 and Bi2O3 coupling. PB - Springer T2 - Journal of Materials Science: Materials in Electronics T1 - TiO2/Bi2O3 coatings formed by plasma electrolytic oxidation of titanium for photocatalytic applications VL - 33 IS - 7 SP - 4467 EP - 4481 DO - 10.1007/s10854-021-07637-0 ER -
@article{ author = "Stojadinović, Stevan and Radić, Nenad and Tadić, Nenad and Vasilić, Rastko and Tsanev, Aleksander", year = "2022", abstract = "TiO2 coatings modified by Bi2O3 particles were successfully formed by plasma electrolytic oxidation (PEO) process of titanium in supporting electrolyte (10 g/L Na3PO4·10H2O) with the addition of Bi2O3 particles. The morphology, crystal structure, chemical composition, and optical properties of formed PEO coatings were investigated by scanning electron microscopy, energy-dispersive spectroscopy, X-ray fluorescence, X-ray diffraction, X-ray photoelectron spectroscopy, UV–Vis diffuse reflectance spectroscopy, and photoluminescent techniques. The photodegradation of methyl orange under simulated sunlight condition was used to determine the potential of TiO2/Bi2O3 coatings in photocatalysis. The photocatalytic activity (PA) of TiO2/Bi2O3 coatings is higher than that of pure TiO2. PA of TiO2/Bi2O3 coatings is highly dependent on the amount of Bi2O3 particles in the supporting electrolyte and the highest PA was observed for TiO2/Bi2O3 coating formed in supporting electrolyte with the addition of 1.2 g/L of Bi2O3 particles. Enhanced PA is related to the reduction of photo-generated electron/hole recombination rate as a result of TiO2 and Bi2O3 coupling.", publisher = "Springer", journal = "Journal of Materials Science: Materials in Electronics", title = "TiO2/Bi2O3 coatings formed by plasma electrolytic oxidation of titanium for photocatalytic applications", volume = "33", number = "7", pages = "4467-4481", doi = "10.1007/s10854-021-07637-0" }
Stojadinović, S., Radić, N., Tadić, N., Vasilić, R.,& Tsanev, A.. (2022). TiO2/Bi2O3 coatings formed by plasma electrolytic oxidation of titanium for photocatalytic applications. in Journal of Materials Science: Materials in Electronics Springer., 33(7), 4467-4481. https://doi.org/10.1007/s10854-021-07637-0
Stojadinović S, Radić N, Tadić N, Vasilić R, Tsanev A. TiO2/Bi2O3 coatings formed by plasma electrolytic oxidation of titanium for photocatalytic applications. in Journal of Materials Science: Materials in Electronics. 2022;33(7):4467-4481. doi:10.1007/s10854-021-07637-0 .
Stojadinović, Stevan, Radić, Nenad, Tadić, Nenad, Vasilić, Rastko, Tsanev, Aleksander, "TiO2/Bi2O3 coatings formed by plasma electrolytic oxidation of titanium for photocatalytic applications" in Journal of Materials Science: Materials in Electronics, 33, no. 7 (2022):4467-4481, https://doi.org/10.1007/s10854-021-07637-0 . .