Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders
Само за регистроване кориснике
2019
Аутори
Rožić, LjiljanaPetrović, Srđan
Lončarević, Davor
Grbić, Boško
Radić, Nenad
Stojadinović, Stevan
Jović, Vesna
Lamovec, Jelena
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
TiO2-CeO2 nanopowders were synthesised by a ball-milling process and then annealed at temperatures from 500 degrees to 800 degrees C. X-ray diffraction and diffuse reflectance spectra were used in combination with temperature programmed desorption to determine the structural and microstructural changes of nanopowders as a the function of annealing temperature. The results of the X-ray analysis showed that the weight fraction of the cerianite phase remained unchanged with a temperature rise of 600-700 degrees C, indicating that the phase changes occur only within TiO2. The TiO2-CeO2 nanopowder showed enhanced optical properties with a red shift after the thermal treatment. Photocatalytic studies revealed that the sample annealed at 600 degrees C showed higher photocatalytic activity than samples annealed at lower or higher temperatures in the degradation of the methyl orange. The activity test of all samples is in accordance with photoluminescence measurements, proportional to the conce...ntrations of hydroxyl radicals at the photocatalyst surfaces.
Кључне речи:
TiO2 / CeO2 / Annealing / Ball milling / PhotocatalysisИзвор:
Ceramics International, 2019, 45, 2, 2361-2367Издавач:
- Elsevier Sci Ltd, Oxford
Финансирање / пројекти:
- Динамика нелинеарних физичкохемијских и биохемијских система са моделирањем и предвиђањем њихових понашања под неравнотежним условима (RS-MESTD-Basic Research (BR or ON)-172015)
- Проучавање физичкохемијских и биохемијских процеса у животној средини који утичу на загађење и истраживање могућности за минимизирање последица (RS-MESTD-Basic Research (BR or ON)-172001)
- Развој ефикаснијих хемијско-инжењерских процеса заснован на истраживањима феномена преноса и принципима интензификације процеса (RS-MESTD-Basic Research (BR or ON)-172022)
- Рационални дизајн и синтеза биолошки активних и координационих једињења и функционалних материјала, релевантних у (био)нанотехнологији (RS-MESTD-Basic Research (BR or ON)-172035)
- Хемијско и структурно дизајнирање наноматеријала за примену у медицини и инжењерству ткива (RS-MESTD-Basic Research (BR or ON)-172026)
- Наноструктурни функционални и композитни материјали у каталитичким и сорпционим процесима (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45001)
- Микро, нано-системи и сензори за примену у електропривреди, процесној индустрији и заштити животне средине (RS-MESTD-Technological Development (TD or TR)-32008)
DOI: 10.1016/j.ceramint.2018.10.153
ISSN: 0272-8842
WoS: 000453492800110
Scopus: 2-s2.0-85055472534
Институција/група
IHTMTY - JOUR AU - Rožić, Ljiljana AU - Petrović, Srđan AU - Lončarević, Davor AU - Grbić, Boško AU - Radić, Nenad AU - Stojadinović, Stevan AU - Jović, Vesna AU - Lamovec, Jelena PY - 2019 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/2486 AB - TiO2-CeO2 nanopowders were synthesised by a ball-milling process and then annealed at temperatures from 500 degrees to 800 degrees C. X-ray diffraction and diffuse reflectance spectra were used in combination with temperature programmed desorption to determine the structural and microstructural changes of nanopowders as a the function of annealing temperature. The results of the X-ray analysis showed that the weight fraction of the cerianite phase remained unchanged with a temperature rise of 600-700 degrees C, indicating that the phase changes occur only within TiO2. The TiO2-CeO2 nanopowder showed enhanced optical properties with a red shift after the thermal treatment. Photocatalytic studies revealed that the sample annealed at 600 degrees C showed higher photocatalytic activity than samples annealed at lower or higher temperatures in the degradation of the methyl orange. The activity test of all samples is in accordance with photoluminescence measurements, proportional to the concentrations of hydroxyl radicals at the photocatalyst surfaces. PB - Elsevier Sci Ltd, Oxford T2 - Ceramics International T1 - Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders VL - 45 IS - 2 SP - 2361 EP - 2367 DO - 10.1016/j.ceramint.2018.10.153 ER -
@article{ author = "Rožić, Ljiljana and Petrović, Srđan and Lončarević, Davor and Grbić, Boško and Radić, Nenad and Stojadinović, Stevan and Jović, Vesna and Lamovec, Jelena", year = "2019", abstract = "TiO2-CeO2 nanopowders were synthesised by a ball-milling process and then annealed at temperatures from 500 degrees to 800 degrees C. X-ray diffraction and diffuse reflectance spectra were used in combination with temperature programmed desorption to determine the structural and microstructural changes of nanopowders as a the function of annealing temperature. The results of the X-ray analysis showed that the weight fraction of the cerianite phase remained unchanged with a temperature rise of 600-700 degrees C, indicating that the phase changes occur only within TiO2. The TiO2-CeO2 nanopowder showed enhanced optical properties with a red shift after the thermal treatment. Photocatalytic studies revealed that the sample annealed at 600 degrees C showed higher photocatalytic activity than samples annealed at lower or higher temperatures in the degradation of the methyl orange. The activity test of all samples is in accordance with photoluminescence measurements, proportional to the concentrations of hydroxyl radicals at the photocatalyst surfaces.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Ceramics International", title = "Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders", volume = "45", number = "2", pages = "2361-2367", doi = "10.1016/j.ceramint.2018.10.153" }
Rožić, L., Petrović, S., Lončarević, D., Grbić, B., Radić, N., Stojadinović, S., Jović, V.,& Lamovec, J.. (2019). Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders. in Ceramics International Elsevier Sci Ltd, Oxford., 45(2), 2361-2367. https://doi.org/10.1016/j.ceramint.2018.10.153
Rožić L, Petrović S, Lončarević D, Grbić B, Radić N, Stojadinović S, Jović V, Lamovec J. Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders. in Ceramics International. 2019;45(2):2361-2367. doi:10.1016/j.ceramint.2018.10.153 .
Rožić, Ljiljana, Petrović, Srđan, Lončarević, Davor, Grbić, Boško, Radić, Nenad, Stojadinović, Stevan, Jović, Vesna, Lamovec, Jelena, "Influence of annealing temperature on structural, optical and photocatalytic properties of TiO2-CeO2 nanopowders" in Ceramics International, 45, no. 2 (2019):2361-2367, https://doi.org/10.1016/j.ceramint.2018.10.153 . .