Effect of Bi3+co-doping on the up-converting and photocatalytic properties of SrGd2O4:Yb3+/Ho3+ phase
Само за регистроване кориснике
2023
Аутори
Stamenković, Tijana![](/themes/MirageDAIS/images/orcid.png)
Dinić, Ivana
![](/themes/MirageDAIS/images/orcid.png)
Vuković, Marina
![](/themes/MirageDAIS/images/orcid.png)
Radmilović, Nadežda
![](/themes/MirageDAIS/images/orcid.png)
Barudžija, Tanja
![](/themes/MirageDAIS/images/orcid.png)
Tomić, Miloš
![](/themes/MirageDAIS/images/orcid.png)
Mančić, Lidija
![](/themes/MirageDAIS/images/orcid.png)
Lojpur, Vesna
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Чланак у часопису (Објављена верзија)
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Метаподаци
Приказ свих података о документуАпстракт
In this investigation, samples of strontium-gadolinium-oxide (SrGd2O4) doped with different Yb3+ (2, 4 and 6 at%) and constant Ho3+ (1 at%) contents and co-doped with Bi3+ (2 at%) were prepared using the glycine-assisted sol–gel method. The pure orthorhombic SrGd2O4 phase, space group Pnma, was revealed using X-ray diffraction in all samples. Transmission electron microscopy discovered agglomerated clusters of spherical particles measuring approximately 150 nm in size. The inclusion of Bi3+ ions into the structure influenced the morphology since the formation of larger grains was observed, with sizes reaching up to ∼1.7 μm. The uniform distribution of all constitutive elements was confirmed by energy-dispersive X-ray spectroscopy. In all samples, up-conversion emission spectra revealed two dominant green (540 and 550 nm), red (671 nm), and infrared (758 nm) emission lines, due to the 5F4,5S2→5I8, 5F5→5I8, and 5F4,5S2 → 5I7 transitions, respectively. The sample co-doped with Bi3+ showed... the most intense photoluminescent emissions, shorter luminescence decay, and the highest quantum yield. Additionally, a significant decrease in the energy band gap value was detected using diffuse reflectance spectroscopy for this sample. Methylene blue was used as a test pollutant to investigate its photocatalytic efficiency under simulated sunlight irradiation. The results show that Bi3+ co-doping deteriorates the photocatalytic efficiency of the SrGd2O4:Yb3+/Ho3+ phase by reducing hydroxyl radical formation.
Кључне речи:
up-conversion / SrGd2O4 / rare earth ions / luminescence / bandgap / photocatalysisИзвор:
Ceramics International, 2023, 49, 23, 37758-37767Издавач:
- Elsevier
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200017 (Универзитет у Београду, Институт за нуклеарне науке Винча, Београд-Винча) (RS-MESTD-inst-2020-200017)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200175 (Институт техничких наука САНУ, Београд) (RS-MESTD-inst-2020-200175)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200288 (Иновациони центар Хемијског факултета у Београду доо) (RS-MESTD-inst-2020-200288)
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Stamenković, Tijana AU - Dinić, Ivana AU - Vuković, Marina AU - Radmilović, Nadežda AU - Barudžija, Tanja AU - Tomić, Miloš AU - Mančić, Lidija AU - Lojpur, Vesna PY - 2023 UR - https://dais.sanu.ac.rs/123456789/15138 AB - In this investigation, samples of strontium-gadolinium-oxide (SrGd2O4) doped with different Yb3+ (2, 4 and 6 at%) and constant Ho3+ (1 at%) contents and co-doped with Bi3+ (2 at%) were prepared using the glycine-assisted sol–gel method. The pure orthorhombic SrGd2O4 phase, space group Pnma, was revealed using X-ray diffraction in all samples. Transmission electron microscopy discovered agglomerated clusters of spherical particles measuring approximately 150 nm in size. The inclusion of Bi3+ ions into the structure influenced the morphology since the formation of larger grains was observed, with sizes reaching up to ∼1.7 μm. The uniform distribution of all constitutive elements was confirmed by energy-dispersive X-ray spectroscopy. In all samples, up-conversion emission spectra revealed two dominant green (540 and 550 nm), red (671 nm), and infrared (758 nm) emission lines, due to the 5F4,5S2→5I8, 5F5→5I8, and 5F4,5S2 → 5I7 transitions, respectively. The sample co-doped with Bi3+ showed the most intense photoluminescent emissions, shorter luminescence decay, and the highest quantum yield. Additionally, a significant decrease in the energy band gap value was detected using diffuse reflectance spectroscopy for this sample. Methylene blue was used as a test pollutant to investigate its photocatalytic efficiency under simulated sunlight irradiation. The results show that Bi3+ co-doping deteriorates the photocatalytic efficiency of the SrGd2O4:Yb3+/Ho3+ phase by reducing hydroxyl radical formation. PB - Elsevier T2 - Ceramics International T1 - Effect of Bi3+co-doping on the up-converting and photocatalytic properties of SrGd2O4:Yb3+/Ho3+ phase SP - 37758 EP - 37767 VL - 49 IS - 23 DO - 10.1016/j.ceramint.2023.09.103 UR - https://hdl.handle.net/21.15107/rcub_dais_15138 ER -
@article{ author = "Stamenković, Tijana and Dinić, Ivana and Vuković, Marina and Radmilović, Nadežda and Barudžija, Tanja and Tomić, Miloš and Mančić, Lidija and Lojpur, Vesna", year = "2023", abstract = "In this investigation, samples of strontium-gadolinium-oxide (SrGd2O4) doped with different Yb3+ (2, 4 and 6 at%) and constant Ho3+ (1 at%) contents and co-doped with Bi3+ (2 at%) were prepared using the glycine-assisted sol–gel method. The pure orthorhombic SrGd2O4 phase, space group Pnma, was revealed using X-ray diffraction in all samples. Transmission electron microscopy discovered agglomerated clusters of spherical particles measuring approximately 150 nm in size. The inclusion of Bi3+ ions into the structure influenced the morphology since the formation of larger grains was observed, with sizes reaching up to ∼1.7 μm. The uniform distribution of all constitutive elements was confirmed by energy-dispersive X-ray spectroscopy. In all samples, up-conversion emission spectra revealed two dominant green (540 and 550 nm), red (671 nm), and infrared (758 nm) emission lines, due to the 5F4,5S2→5I8, 5F5→5I8, and 5F4,5S2 → 5I7 transitions, respectively. The sample co-doped with Bi3+ showed the most intense photoluminescent emissions, shorter luminescence decay, and the highest quantum yield. Additionally, a significant decrease in the energy band gap value was detected using diffuse reflectance spectroscopy for this sample. Methylene blue was used as a test pollutant to investigate its photocatalytic efficiency under simulated sunlight irradiation. The results show that Bi3+ co-doping deteriorates the photocatalytic efficiency of the SrGd2O4:Yb3+/Ho3+ phase by reducing hydroxyl radical formation.", publisher = "Elsevier", journal = "Ceramics International", title = "Effect of Bi3+co-doping on the up-converting and photocatalytic properties of SrGd2O4:Yb3+/Ho3+ phase", pages = "37758-37767", volume = "49", number = "23", doi = "10.1016/j.ceramint.2023.09.103", url = "https://hdl.handle.net/21.15107/rcub_dais_15138" }
Stamenković, T., Dinić, I., Vuković, M., Radmilović, N., Barudžija, T., Tomić, M., Mančić, L.,& Lojpur, V.. (2023). Effect of Bi3+co-doping on the up-converting and photocatalytic properties of SrGd2O4:Yb3+/Ho3+ phase. in Ceramics International Elsevier., 49(23), 37758-37767. https://doi.org/10.1016/j.ceramint.2023.09.103 https://hdl.handle.net/21.15107/rcub_dais_15138
Stamenković T, Dinić I, Vuković M, Radmilović N, Barudžija T, Tomić M, Mančić L, Lojpur V. Effect of Bi3+co-doping on the up-converting and photocatalytic properties of SrGd2O4:Yb3+/Ho3+ phase. in Ceramics International. 2023;49(23):37758-37767. doi:10.1016/j.ceramint.2023.09.103 https://hdl.handle.net/21.15107/rcub_dais_15138 .
Stamenković, Tijana, Dinić, Ivana, Vuković, Marina, Radmilović, Nadežda, Barudžija, Tanja, Tomić, Miloš, Mančić, Lidija, Lojpur, Vesna, "Effect of Bi3+co-doping on the up-converting and photocatalytic properties of SrGd2O4:Yb3+/Ho3+ phase" in Ceramics International, 49, no. 23 (2023):37758-37767, https://doi.org/10.1016/j.ceramint.2023.09.103 ., https://hdl.handle.net/21.15107/rcub_dais_15138 .