One-step preparation and photocatalytic performance of vanadium doped TiO2 coatings
Samo za registrovane korisnike
2015
Autori
Vasilić, RastkoStojadinović, Stevan D.J.
Radić, Nenad
Stefanov, P
Dohcevic-Mitrovic, Z
Grbić, Boško
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
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.
Ključne reči:
Oxides / Coatings / Arc discharges / Atomic force microscopy (AFM) / X-ray photo-emission spectroscopy (XPS)Izvor:
Materials Chemistry and Physics, 2015, 151, 337-344Izdavač:
- Elsevier Science Sa, Lausanne
Finansiranje / projekti:
- Grafitne i neorganske nanostrukture niske dimenzionalnosti (RS-171035)
- Razvoj efikasnijih hemijsko-inženjerskih procesa zasnovan na istraživanjima fenomena prenosa i principima intenzifikacije procesa (RS-172022)
- Hemijsko i strukturno dizajniranje nanomaterijala za primenu u medicini i inženjerstvu tkiva (RS-172026)
DOI: 10.1016/j.matchemphys.2014.11.077
ISSN: 0254-0584
WoS: 000348263600046
Scopus: 2-s2.0-84926244521
Institucija/grupa
IHTMTY - 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 . .