Structural and optical characteristics of pure and 5%RE (Tb, Y and Eu) doped ZnO

Al–Otaibi, Amal L.; Howsawi, Enas; Ghrib, Taher

doi:10.1016/j.nanoso.2020.100551

Cited by 5 publications

(2 citation statements)

References 39 publications

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“…The O-H stretching vibration is thought to cause the wide broadband at 3566 cm -1 for CeO2:Bi-as prepared and at 3443 cm -1 for CeO2:Bi-calcined [27]. The two absorption bands at 2368 cm -1 and 1832 cm -1 (CeO2:Bi-as prepared), 2353 cm -1 and 1537 cm -1 (CeO2:Bi-calcined), indicating CO2 trapped in the environment [28]. The strong band on CeO2:Bi-as prepared with wavenumber 1384 cm -1, leads to the hydroxyl groups trapped on the CeO2.…”

Section: Structure Analysis Ftir Analysismentioning

confidence: 99%

Structural and Optical Properties of Bismuth-doped Cerium Oxide Prepared at a Low Temperature

Paramita

Nurhasanah

Khumaeni

2023

J. Penelit. Fis. Apl.

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Cerium oxide (CeO2) is a functional material with excellent physicochemical properties. Its properties can be modified by doping with different elements, including bismuth, which can be done through various synthesis methods. The precipitation method combined with ultrasonic radiation was used to synthesize bismuth-doped cerium oxide (CeO2:Bi) at a low temperature of 200oC. In this study, we investigate the alteration of structural and optical properties of as-prepared CeO2:Bi by subjecting it to additional calcination at a high temperature of 500oC. The structural and optical properties of CeO2:Bi were characterized using thermal gravimetric analysis, X-ray diffraction, Scanning Electron Microscope-Energy Dispersive X-Ray, Fourier Transform Infrared spectroscopy, and UV-Visible spectroscopy. The additional calcination produced a less significant weight-loss percentage than the as-prepared CeO2:Bi observed from the gravimetric curve. The Fourier transform infrared spectrum revealed the loss of a small number of hydroxyl molecules trapped on the CeO2:Bi surface when additional calcination was subjected. Based on the X-ray diffraction spectra, additional calcination results in the smallest crystallite size and compressive strain without the changed cubic crystal structure of CeO2:Bi. The successful doping of Bi in CeO2 was confirmed by the composition analysis from Energy Dispersive X-Ray measurement. Scanning electron microscope image showed spherical and agglomerated particles of calcined CeO2:Bi. The optical properties of both CeO2:Bi possessed similar trend absorption spectra and almost the same band gap energy. The results indicated that the calcination of as-prepared CeO2:Bi at a temperature of 500oC did not affect its structural and optical properties significantly. Thus, combining ultrasonic radiation with precipitation is an advantageous method to synthesize at a low temperature of stable CeO2:Bi crystalline.

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Section: Structure Analysis Ftir Analysismentioning

confidence: 99%

Structural and Optical Properties of Bismuth-doped Cerium Oxide Prepared at a Low Temperature

Paramita

Nurhasanah

Khumaeni

2023

J. Penelit. Fis. Apl.

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“…The results also showed the successful formation of composite samples through the integration or substitution of larger atoms by smaller atoms in the lattice. [72][73][74][75][76][77]…”

Section: Xrd Analysismentioning

confidence: 99%

Highly efficient and stable AgI–CdO nanocomposites for photocatalytic and antibacterial activity

et al. 2023

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Ecotoxicity of doped zinc oxide nanoparticles: Perspectives on environmental safety

Bordin,

Yamamoto,

Filho

et al. 2024

Chemosphere

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Structural and optical characteristics of pure and 5%RE (Tb, Y and Eu) doped ZnO

Cited by 5 publications

References 39 publications

Structural and Optical Properties of Bismuth-doped Cerium Oxide Prepared at a Low Temperature

Structural and Optical Properties of Bismuth-doped Cerium Oxide Prepared at a Low Temperature

Highly efficient and stable AgI–CdO nanocomposites for photocatalytic and antibacterial activity

Ecotoxicity of doped zinc oxide nanoparticles: Perspectives on environmental safety

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