Characterization and photocatalytic application of SrGd2O4 doped with rare earth Sm3+ and Dy3+ ions
Само за регистроване кориснике
2023
Аутори
Stamenković, TijanaPjević, Dejan
Krstić, Jugoslav
Popović, Maja
Rajić, Vladimir
Lojpur, Vesna
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
A set of samples of SrGd2O4 doped with Sm3+ and Dy3+with different concentrations was prepared via glycine-assisted combustion synthesis. All of the diffraction peaks are related to the pure orthorhombic lattice SrGd2O4, according to X-ray Powder Diffraction investigation. The Energy Dispersive X-ray Spectroscopy chemical characterization revealed that the structure included all desired elements. Field Emission Scanning Electron Microscopy was used to capture the morphology, which showed porous aggregated particles consisting of roughly 50 nm-sized spherical particles. The Mercury Intrusion Porosimetry was used to establish where voids originated, and the results showed that samples have a real permanent 3D pore structure. X-ray Photoelectron Spectroscopy verified the successful incorporation of Dy3+ and Sm3+ ions in the matrix. Down-conversion luminescence spectra were recorded and typical emission transitions were found for either Sm3+ (4G5/2→6H5/2, 4G5/2→6H7/2, 4G5/2→6H9/2) or Dy3+ ...(4F9/2→6H15/2 and 4F9/2→6H13/2) ions. Calculation of the energy band gap using UV-VIS Diffuse Reflectance Spectroscopy yielded values of 4.3 eV for both doped samples. Using UV-VIS Absorption Spectroscopy, the photocatalytic degradation process was observed. After 4 h of simulating Sun exposure, an analysis of the photocatalytic properties revealed that approximately 50% of the Rhodamine B had been mineralized.
Кључне речи:
Band gap / Luminescence / Photocatalysis / Rare earth ions / SrGd2O4Извор:
Surfaces and Interfaces, 2023, 37, 102755-Издавач:
- Elsevier B.V.
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)
DOI: 10.1016/j.surfin.2023.102755
ISSN: 2468-0230
WoS: 000948967500001
Scopus: 2-s2.0-85148664612
Институција/група
IHTMTY - JOUR AU - Stamenković, Tijana AU - Pjević, Dejan AU - Krstić, Jugoslav AU - Popović, Maja AU - Rajić, Vladimir AU - Lojpur, Vesna PY - 2023 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/5881 AB - A set of samples of SrGd2O4 doped with Sm3+ and Dy3+with different concentrations was prepared via glycine-assisted combustion synthesis. All of the diffraction peaks are related to the pure orthorhombic lattice SrGd2O4, according to X-ray Powder Diffraction investigation. The Energy Dispersive X-ray Spectroscopy chemical characterization revealed that the structure included all desired elements. Field Emission Scanning Electron Microscopy was used to capture the morphology, which showed porous aggregated particles consisting of roughly 50 nm-sized spherical particles. The Mercury Intrusion Porosimetry was used to establish where voids originated, and the results showed that samples have a real permanent 3D pore structure. X-ray Photoelectron Spectroscopy verified the successful incorporation of Dy3+ and Sm3+ ions in the matrix. Down-conversion luminescence spectra were recorded and typical emission transitions were found for either Sm3+ (4G5/2→6H5/2, 4G5/2→6H7/2, 4G5/2→6H9/2) or Dy3+ (4F9/2→6H15/2 and 4F9/2→6H13/2) ions. Calculation of the energy band gap using UV-VIS Diffuse Reflectance Spectroscopy yielded values of 4.3 eV for both doped samples. Using UV-VIS Absorption Spectroscopy, the photocatalytic degradation process was observed. After 4 h of simulating Sun exposure, an analysis of the photocatalytic properties revealed that approximately 50% of the Rhodamine B had been mineralized. PB - Elsevier B.V. T2 - Surfaces and Interfaces T1 - Characterization and photocatalytic application of SrGd2O4 doped with rare earth Sm3+ and Dy3+ ions VL - 37 SP - 102755 DO - 10.1016/j.surfin.2023.102755 ER -
@article{ author = "Stamenković, Tijana and Pjević, Dejan and Krstić, Jugoslav and Popović, Maja and Rajić, Vladimir and Lojpur, Vesna", year = "2023", abstract = "A set of samples of SrGd2O4 doped with Sm3+ and Dy3+with different concentrations was prepared via glycine-assisted combustion synthesis. All of the diffraction peaks are related to the pure orthorhombic lattice SrGd2O4, according to X-ray Powder Diffraction investigation. The Energy Dispersive X-ray Spectroscopy chemical characterization revealed that the structure included all desired elements. Field Emission Scanning Electron Microscopy was used to capture the morphology, which showed porous aggregated particles consisting of roughly 50 nm-sized spherical particles. The Mercury Intrusion Porosimetry was used to establish where voids originated, and the results showed that samples have a real permanent 3D pore structure. X-ray Photoelectron Spectroscopy verified the successful incorporation of Dy3+ and Sm3+ ions in the matrix. Down-conversion luminescence spectra were recorded and typical emission transitions were found for either Sm3+ (4G5/2→6H5/2, 4G5/2→6H7/2, 4G5/2→6H9/2) or Dy3+ (4F9/2→6H15/2 and 4F9/2→6H13/2) ions. Calculation of the energy band gap using UV-VIS Diffuse Reflectance Spectroscopy yielded values of 4.3 eV for both doped samples. Using UV-VIS Absorption Spectroscopy, the photocatalytic degradation process was observed. After 4 h of simulating Sun exposure, an analysis of the photocatalytic properties revealed that approximately 50% of the Rhodamine B had been mineralized.", publisher = "Elsevier B.V.", journal = "Surfaces and Interfaces", title = "Characterization and photocatalytic application of SrGd2O4 doped with rare earth Sm3+ and Dy3+ ions", volume = "37", pages = "102755", doi = "10.1016/j.surfin.2023.102755" }
Stamenković, T., Pjević, D., Krstić, J., Popović, M., Rajić, V.,& Lojpur, V.. (2023). Characterization and photocatalytic application of SrGd2O4 doped with rare earth Sm3+ and Dy3+ ions. in Surfaces and Interfaces Elsevier B.V.., 37, 102755. https://doi.org/10.1016/j.surfin.2023.102755
Stamenković T, Pjević D, Krstić J, Popović M, Rajić V, Lojpur V. Characterization and photocatalytic application of SrGd2O4 doped with rare earth Sm3+ and Dy3+ ions. in Surfaces and Interfaces. 2023;37:102755. doi:10.1016/j.surfin.2023.102755 .
Stamenković, Tijana, Pjević, Dejan, Krstić, Jugoslav, Popović, Maja, Rajić, Vladimir, Lojpur, Vesna, "Characterization and photocatalytic application of SrGd2O4 doped with rare earth Sm3+ and Dy3+ ions" in Surfaces and Interfaces, 37 (2023):102755, https://doi.org/10.1016/j.surfin.2023.102755 . .