Influence of La doping on structural, photo-luminescence and magnetic properties of SnO2 nanostructures co-doped with Gd

Duhan, Monika; Bharadwaj, Shashank; Gupta, Anita; Kaur, Harminder

doi:10.1016/j.matlet.2021.130402

Cited by 5 publications

(1 citation statement)

References 13 publications

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“…The red luminescence centered at 620 nm was suppressed with respect to the blue one (at 478 nm) and the yellowish green one (at 571 nm) which are also the low intensity bands of undoped YVO 4 . This indicates La 3+ doping modi es intrinsic lattice defects and intensively changes luminescence characteristic with respect to luminescence of undoped YVO 4 [23,24].…”

Section: Photoluminescence Of Undoped and La 3+ -Doped Yvomentioning

confidence: 98%

Effect of lanthanum doping on structural, optical, and photocatalytic properties of YVO4

Karacaoğlu

Yıldırım

Öztürk

et al. 2023

Preprint

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Yttrium vanadate (YVO4) based undoped and La3+-doped powders were prepared through a solid-state reaction method. The structural characterization carried out with XRD indicating that the samples are crystalline tetragonal type crystal structure of YVO4. XRD of the YVO4: La3+ powder contain same YVO4 diffraction lines and no other lanthanum related impurity and/or secondary phases were detected. Both undoped and La3+-doped YVO4 samples show combined white light emission peaks appeared at 478, 571 and 613 nm. The higher intensity of peaks located at 478 and 571 nm in YVO4: La3+ sample can be attributed to O2−-La3+ and O2−-V5+ charge transfer mechanisms. Besides, photocatalytic activities of the undoped and La3+ doped YVO4 samples were investigated under the UV light irradiation monitoring the aqueous solution of methylene blue (MB) dye. Hence, the effects of La3+ dopant ion on the photoluminescence properties are discussed in detail. While the degradation of MB reaches to 38.8% after 180 minutes of UV light exposure with undoped YVO4, the degradation efficiency of La3+ doped YVO4 reaches 76.7%. Pseudo-first-order reaction rate constant (k) of La3+-doped YVO4 (0.00846 min− 1) is determined 66% greater than undoped one (0.00287 min− 1).

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Section: Photoluminescence Of Undoped and La 3+ -Doped Yvomentioning

confidence: 98%