WO3/TiO2 composite coatings: Structural, optical and photocatalytic properties
Samo za registrovane korisnike
2016
Autori
Dohčević-Mitrović, ZoranaStojadinovic, Stevan
Lozzi, Luca
Aškrabić, Sonja
Rosić, Milena
Tomić, Nataša
Paunović, Novica M.
Lazović, Saša
Nikolić, Marko G.
Santucci, Sandro
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
WO3/TiO2 and TiO2 coatings were prepared on titania substrates using facile and cost-effective plasma electrolytic oxidation process. The coatings were characterized by X-ray diffraction, scanning electron microscopy, Raman, UV vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. With increasing duration of PEO process, the monoclinic WO3 phase became dominant and new monoclinic WO2.95 phase appeared. The optical absorption edge in the WO3/TiO2 samples, enriched with WO3/WO2.96 phase, was shifted to the visible region. The photocatalytic efficiency of WO3/TiO2 and pure TiO2 samples was evaluated by performing the photodegradation experiments in an aqueous solution of Rhodamine 6G and Mordant Blue 9 under the visible and UV light. The WO3/TiO2 catalysts are much more efficient than pure TiO2 under visible light and slightly better under UV light. The improvement of photocatalytic activity in the visible region is attributed to better light absorption, higher adsor...ption affinity and increased charge separation efficiency. (C) 2016 Elsevier Ltd. All rights reserved.
Ključne reči:
Nanostructures / Oxides / Crystal structure / Optical properties / Catalytic propertiesIzvor:
Materials Research Bulletin, 2016, 83, 217-224Finansiranje / projekti:
- Fizika nanostrukturnih oksidnih materijala i jako korelisanih sistema (RS-MESTD-Basic Research (BR or ON)-171032)
- Nanostrukturni multifunkcionalni materijali i nanokompoziti (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45018)
- bilateral project Serbia-Italy [RS13M011]
DOI: 10.1016/j.materresbull.2016.06.011
ISSN: 0025-5408; 1873-4227
WoS: 000382793400030
Scopus: 2-s2.0-84975263176
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Dohčević-Mitrović, Zorana AU - Stojadinovic, Stevan AU - Lozzi, Luca AU - Aškrabić, Sonja AU - Rosić, Milena AU - Tomić, Nataša AU - Paunović, Novica M. AU - Lazović, Saša AU - Nikolić, Marko G. AU - Santucci, Sandro PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1234 AB - WO3/TiO2 and TiO2 coatings were prepared on titania substrates using facile and cost-effective plasma electrolytic oxidation process. The coatings were characterized by X-ray diffraction, scanning electron microscopy, Raman, UV vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. With increasing duration of PEO process, the monoclinic WO3 phase became dominant and new monoclinic WO2.95 phase appeared. The optical absorption edge in the WO3/TiO2 samples, enriched with WO3/WO2.96 phase, was shifted to the visible region. The photocatalytic efficiency of WO3/TiO2 and pure TiO2 samples was evaluated by performing the photodegradation experiments in an aqueous solution of Rhodamine 6G and Mordant Blue 9 under the visible and UV light. The WO3/TiO2 catalysts are much more efficient than pure TiO2 under visible light and slightly better under UV light. The improvement of photocatalytic activity in the visible region is attributed to better light absorption, higher adsorption affinity and increased charge separation efficiency. (C) 2016 Elsevier Ltd. All rights reserved. T2 - Materials Research Bulletin T1 - WO3/TiO2 composite coatings: Structural, optical and photocatalytic properties VL - 83 SP - 217 EP - 224 DO - 10.1016/j.materresbull.2016.06.011 ER -
@article{ author = "Dohčević-Mitrović, Zorana and Stojadinovic, Stevan and Lozzi, Luca and Aškrabić, Sonja and Rosić, Milena and Tomić, Nataša and Paunović, Novica M. and Lazović, Saša and Nikolić, Marko G. and Santucci, Sandro", year = "2016", abstract = "WO3/TiO2 and TiO2 coatings were prepared on titania substrates using facile and cost-effective plasma electrolytic oxidation process. The coatings were characterized by X-ray diffraction, scanning electron microscopy, Raman, UV vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. With increasing duration of PEO process, the monoclinic WO3 phase became dominant and new monoclinic WO2.95 phase appeared. The optical absorption edge in the WO3/TiO2 samples, enriched with WO3/WO2.96 phase, was shifted to the visible region. The photocatalytic efficiency of WO3/TiO2 and pure TiO2 samples was evaluated by performing the photodegradation experiments in an aqueous solution of Rhodamine 6G and Mordant Blue 9 under the visible and UV light. The WO3/TiO2 catalysts are much more efficient than pure TiO2 under visible light and slightly better under UV light. The improvement of photocatalytic activity in the visible region is attributed to better light absorption, higher adsorption affinity and increased charge separation efficiency. (C) 2016 Elsevier Ltd. All rights reserved.", journal = "Materials Research Bulletin", title = "WO3/TiO2 composite coatings: Structural, optical and photocatalytic properties", volume = "83", pages = "217-224", doi = "10.1016/j.materresbull.2016.06.011" }
Dohčević-Mitrović, Z., Stojadinovic, S., Lozzi, L., Aškrabić, S., Rosić, M., Tomić, N., Paunović, N. M., Lazović, S., Nikolić, M. G.,& Santucci, S.. (2016). WO3/TiO2 composite coatings: Structural, optical and photocatalytic properties. in Materials Research Bulletin, 83, 217-224. https://doi.org/10.1016/j.materresbull.2016.06.011
Dohčević-Mitrović Z, Stojadinovic S, Lozzi L, Aškrabić S, Rosić M, Tomić N, Paunović NM, Lazović S, Nikolić MG, Santucci S. WO3/TiO2 composite coatings: Structural, optical and photocatalytic properties. in Materials Research Bulletin. 2016;83:217-224. doi:10.1016/j.materresbull.2016.06.011 .
Dohčević-Mitrović, Zorana , Stojadinovic, Stevan, Lozzi, Luca, Aškrabić, Sonja, Rosić, Milena, Tomić, Nataša, Paunović, Novica M., Lazović, Saša, Nikolić, Marko G., Santucci, Sandro, "WO3/TiO2 composite coatings: Structural, optical and photocatalytic properties" in Materials Research Bulletin, 83 (2016):217-224, https://doi.org/10.1016/j.materresbull.2016.06.011 . .