In this paper, we have investigated one-step preparation of vanadium doped TiO2 coatings formed by plasma electrolytic oxidation (PEO) of titanium in electrolyte containing 10 g/L Na3PO4 center dot 12H(2)O + 0.5 g/L NH4VO3. The morphology, phase structure, and elemental composition of the formed coatings were characterized by atomic force microscopy (AFM), x-ray diffraction (XRD), and x-ray photoelectron spectroscopy (XPS) techniques. Ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) was employed to evaluate the band gap energy of obtained coatings. Vanadium doped TiO2 coatings are partly crystallized and mainly composed of anatase phase TiO2, with up to about 2 wt% of vanadium present in the surface layer of the oxide. The valence band photoelectron spectra and UV-Vis DRS showed that vanadium doped TiO2 coatings exhibit notable red shift with respect to the pure TiO2 coatings. The photocatalytic activity was evaluated by monitoring the degradation of methyl orange unde...r simulated sunlight conditions. Photocatalytic activity of vanadium doped TiO2 coatings increases with PEO time. Prolonged PEO times result in higher roughness of obtained coatings, thus increasing surface area available for methyl orange degradation. Vanadium doped TiO2 coatings obtained after 180 s of PEO time exhibit the best photocatalytic activity and about 67% of methyl orange is degraded after 12 h of irradiation under simulated sunlight.
TY - JOUR
AU - Vasilić, Rastko
AU - Stojadinović, Stevan D.J.
AU - Radić, Nenad
AU - Stefanov, P
AU - Dohcevic-Mitrovic, Z
AU - Grbić, Boško
PY - 2015
UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1744
AB - In this paper, we have investigated one-step preparation of vanadium doped TiO2 coatings formed by plasma electrolytic oxidation (PEO) of titanium in electrolyte containing 10 g/L Na3PO4 center dot 12H(2)O + 0.5 g/L NH4VO3. The morphology, phase structure, and elemental composition of the formed coatings were characterized by atomic force microscopy (AFM), x-ray diffraction (XRD), and x-ray photoelectron spectroscopy (XPS) techniques. Ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) was employed to evaluate the band gap energy of obtained coatings. Vanadium doped TiO2 coatings are partly crystallized and mainly composed of anatase phase TiO2, with up to about 2 wt% of vanadium present in the surface layer of the oxide. The valence band photoelectron spectra and UV-Vis DRS showed that vanadium doped TiO2 coatings exhibit notable red shift with respect to the pure TiO2 coatings. The photocatalytic activity was evaluated by monitoring the degradation of methyl orange under simulated sunlight conditions. Photocatalytic activity of vanadium doped TiO2 coatings increases with PEO time. Prolonged PEO times result in higher roughness of obtained coatings, thus increasing surface area available for methyl orange degradation. Vanadium doped TiO2 coatings obtained after 180 s of PEO time exhibit the best photocatalytic activity and about 67% of methyl orange is degraded after 12 h of irradiation under simulated sunlight.
PB - Elsevier Science Sa, Lausanne
T2 - Materials Chemistry and Physics
T1 - One-step preparation and photocatalytic performance of vanadium doped TiO2 coatings
VL - 151
SP - 337
EP - 344
DO - 10.1016/j.matchemphys.2014.11.077
ER -
@article{
author = "Vasilić, Rastko and Stojadinović, Stevan D.J. and Radić, Nenad and Stefanov, P and Dohcevic-Mitrovic, Z and Grbić, Boško",
year = "2015",
abstract = "In this paper, we have investigated one-step preparation of vanadium doped TiO2 coatings formed by plasma electrolytic oxidation (PEO) of titanium in electrolyte containing 10 g/L Na3PO4 center dot 12H(2)O + 0.5 g/L NH4VO3. The morphology, phase structure, and elemental composition of the formed coatings were characterized by atomic force microscopy (AFM), x-ray diffraction (XRD), and x-ray photoelectron spectroscopy (XPS) techniques. Ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) was employed to evaluate the band gap energy of obtained coatings. Vanadium doped TiO2 coatings are partly crystallized and mainly composed of anatase phase TiO2, with up to about 2 wt% of vanadium present in the surface layer of the oxide. The valence band photoelectron spectra and UV-Vis DRS showed that vanadium doped TiO2 coatings exhibit notable red shift with respect to the pure TiO2 coatings. The photocatalytic activity was evaluated by monitoring the degradation of methyl orange under simulated sunlight conditions. Photocatalytic activity of vanadium doped TiO2 coatings increases with PEO time. Prolonged PEO times result in higher roughness of obtained coatings, thus increasing surface area available for methyl orange degradation. Vanadium doped TiO2 coatings obtained after 180 s of PEO time exhibit the best photocatalytic activity and about 67% of methyl orange is degraded after 12 h of irradiation under simulated sunlight.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Materials Chemistry and Physics",
title = "One-step preparation and photocatalytic performance of vanadium doped TiO2 coatings",
volume = "151",
pages = "337-344",
doi = "10.1016/j.matchemphys.2014.11.077"
}
Vasilić, R., Stojadinović, S. D.J., Radić, N., Stefanov, P., Dohcevic-Mitrovic, Z.,& Grbić, B.. (2015). One-step preparation and photocatalytic performance of vanadium doped TiO2 coatings. in Materials Chemistry and Physics
Elsevier Science Sa, Lausanne., 151, 337-344.
https://doi.org/10.1016/j.matchemphys.2014.11.077
Vasilić R, Stojadinović SD, Radić N, Stefanov P, Dohcevic-Mitrovic Z, Grbić B. One-step preparation and photocatalytic performance of vanadium doped TiO2 coatings. in Materials Chemistry and Physics. 2015;151:337-344.
doi:10.1016/j.matchemphys.2014.11.077 .
Vasilić, Rastko, Stojadinović, Stevan D.J., Radić, Nenad, Stefanov, P, Dohcevic-Mitrovic, Z, Grbić, Boško, "One-step preparation and photocatalytic performance of vanadium doped TiO2 coatings" in Materials Chemistry and Physics, 151 (2015):337-344,
https://doi.org/10.1016/j.matchemphys.2014.11.077 . .
