Zirconia films formed by plasma electrolytic oxidation: Photo luminescent and photocatalytic properties
Само за регистроване кориснике
2015
Чланак у часопису (Објављена верзија)

Метаподаци
Приказ свих података о документуАпстракт
In this paper, we have investigated photoluminescence and photocatalytic properties of zirconia films formed by plasma electrolytic oxidation (PEO) of zirconium foil in 0.1 M water solution of citric acid. Zirconia films with diverse morphology and phase structure are formed varying the time of PEO process. Characterization by atomic force microscopy and X-ray diffraction shows that obtained zirconia films mostly consist of monoclinic ZrO2 phase, while corresponding roughness and crystallite size increases with PEO time. Diffuse reflectance spectroscopy has shown that zirconia films have a broad absorption band in the range from 200 nm to 330 nm, indicating that zirconia films could be used as a photocatalyst using ultraviolet radiation. Strong photoluminescence bands are present in spectra featuring four distinct peaks in the 300-600 nm range. The peaks are centered at about 418 nm, 440 nm, 464 nm, and 495 nm. Apparent increase of photoluminescence intensity with PEO time is related t...o an increase of oxygen vacancy defects in zirconia films formed during the process. Also, higher concentration of oxygen vacancy defects in zirconia films result in higher photocatalytic activity.
Кључне речи:
Zirconia films / Plasma electrolytic oxidation / Photoluminescence / Photocatalytic activityИзвор:
Optical Materials, 2015, 40, 20-25Издавач:
- Elsevier
Финансирање / пројекти:
- Графитне и неорганске наноструктуре ниске димензионалности (RS-171035)
- Развој ефикаснијих хемијско-инжењерских процеса заснован на истраживањима феномена преноса и принципима интензификације процеса (RS-172022)
- Хемијско и структурно дизајнирање наноматеријала за примену у медицини и инжењерству ткива (RS-172026)
DOI: 10.1016/j.optmat.2014.11.041
ISSN: 0925-3467
WoS: 000348891700004
Scopus: 2-s2.0-84920677797
Институција/група
IHTMTY - JOUR AU - Stojadinović, Stevan D.J. AU - Vasilić, Rastko AU - Radić, Nenad AU - Grbić, Boško PY - 2015 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/1802 AB - In this paper, we have investigated photoluminescence and photocatalytic properties of zirconia films formed by plasma electrolytic oxidation (PEO) of zirconium foil in 0.1 M water solution of citric acid. Zirconia films with diverse morphology and phase structure are formed varying the time of PEO process. Characterization by atomic force microscopy and X-ray diffraction shows that obtained zirconia films mostly consist of monoclinic ZrO2 phase, while corresponding roughness and crystallite size increases with PEO time. Diffuse reflectance spectroscopy has shown that zirconia films have a broad absorption band in the range from 200 nm to 330 nm, indicating that zirconia films could be used as a photocatalyst using ultraviolet radiation. Strong photoluminescence bands are present in spectra featuring four distinct peaks in the 300-600 nm range. The peaks are centered at about 418 nm, 440 nm, 464 nm, and 495 nm. Apparent increase of photoluminescence intensity with PEO time is related to an increase of oxygen vacancy defects in zirconia films formed during the process. Also, higher concentration of oxygen vacancy defects in zirconia films result in higher photocatalytic activity. PB - Elsevier T2 - Optical Materials T1 - Zirconia films formed by plasma electrolytic oxidation: Photo luminescent and photocatalytic properties VL - 40 SP - 20 EP - 25 DO - 10.1016/j.optmat.2014.11.041 ER -
@article{ author = "Stojadinović, Stevan D.J. and Vasilić, Rastko and Radić, Nenad and Grbić, Boško", year = "2015", abstract = "In this paper, we have investigated photoluminescence and photocatalytic properties of zirconia films formed by plasma electrolytic oxidation (PEO) of zirconium foil in 0.1 M water solution of citric acid. Zirconia films with diverse morphology and phase structure are formed varying the time of PEO process. Characterization by atomic force microscopy and X-ray diffraction shows that obtained zirconia films mostly consist of monoclinic ZrO2 phase, while corresponding roughness and crystallite size increases with PEO time. Diffuse reflectance spectroscopy has shown that zirconia films have a broad absorption band in the range from 200 nm to 330 nm, indicating that zirconia films could be used as a photocatalyst using ultraviolet radiation. Strong photoluminescence bands are present in spectra featuring four distinct peaks in the 300-600 nm range. The peaks are centered at about 418 nm, 440 nm, 464 nm, and 495 nm. Apparent increase of photoluminescence intensity with PEO time is related to an increase of oxygen vacancy defects in zirconia films formed during the process. Also, higher concentration of oxygen vacancy defects in zirconia films result in higher photocatalytic activity.", publisher = "Elsevier", journal = "Optical Materials", title = "Zirconia films formed by plasma electrolytic oxidation: Photo luminescent and photocatalytic properties", volume = "40", pages = "20-25", doi = "10.1016/j.optmat.2014.11.041" }
Stojadinović, S. D.J., Vasilić, R., Radić, N.,& Grbić, B.. (2015). Zirconia films formed by plasma electrolytic oxidation: Photo luminescent and photocatalytic properties. in Optical Materials Elsevier., 40, 20-25. https://doi.org/10.1016/j.optmat.2014.11.041
Stojadinović SD, Vasilić R, Radić N, Grbić B. Zirconia films formed by plasma electrolytic oxidation: Photo luminescent and photocatalytic properties. in Optical Materials. 2015;40:20-25. doi:10.1016/j.optmat.2014.11.041 .
Stojadinović, Stevan D.J., Vasilić, Rastko, Radić, Nenad, Grbić, Boško, "Zirconia films formed by plasma electrolytic oxidation: Photo luminescent and photocatalytic properties" in Optical Materials, 40 (2015):20-25, https://doi.org/10.1016/j.optmat.2014.11.041 . .