Structural, morphological and optical properties of shuttle-like CeO2 synthesized by a facile hydrothermal method

Li, Huijie; Meng, Fanning; Gong, Jinfeng; Fan, Zhenghua; Qin, Rui

doi:10.1016/j.jallcom.2017.06.156

Cited by 77 publications

(41 citation statements)

References 56 publications

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“…The diffraction pattern revealed the cubic structure of CeO 2 which was in understanding with JCPDS 34-0394 [52]. The distinctive peaks displayed by MoS 2 sheet representing the (002), (100), ( 103) and ( 110)…”

Section: Resultssupporting

confidence: 71%

Biosynthesis of 3D/2D Ceo2/Mos2 Nanocomposites with Enhanced Photocatalytic Activity to Degrade Organic Dye in Wastewater and Statistical Optimization of Reaction Parameters

Sharma

Khan

Chellapandi

et al. 2021

Preprint

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Nanocomposites synthesized by alternative approaches like biosynthetic methods are safer than those prepared by traditional chemical techniques. Further, this approach is both economically and environmentally feasible. In this study, we report an eco-friendly methodology for preparing cerium dioxide/molybdenum disulphide (CeO2/MoS2) nanocomposites. Moringa oleifera peel was used as the reducing/stabilizing agent for synthesizing CeO2 nanoparticles. The prepared nanocomposite were characterized using FT-IR analysis, SEM and EDAX analysis, TEM and SAED pattern analysis, X-Ray Diffraction Pattern, Zeta Potential, UV-Visible Diffuse Reflectance Spectra, X-Ray Photon Spectroscopy and Photoluminescence spectra. Particle size and morphology were characterized by TEM and SEM. The photocatalytic pursuit of CeO2/MoS2 was explored by the degradation of methyl violet (MV) under visible light irradiation. Our methodology proved to be 96.25% effective in the degradation of MV. Further, we used this Response Surface Methodology for enhancing the process factors like volume of photocatalyst, time for degradation and concentration of MV.

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Section: Resultssupporting

confidence: 71%

Biosynthesis of 3D/2D Ceo2/Mos2 Nanocomposites with Enhanced Photocatalytic Activity to Degrade Organic Dye in Wastewater and Statistical Optimization of Reaction Parameters

Sharma

Khan

Chellapandi

et al. 2021

Preprint

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“…In the case of the O 1s XPS spectrum, the binding energies lower than 530 eV are usually assigned to oxygen from the lattice of the CeO 2 crystal, in our case, at around 527 eV and 529 eV (Figure 4). The peak at higher binding energies, in our case around 531 eV, is usually attributed to the weakly absorbed oxygen species on the surface of CeO 2 associated with Ce 3+ ions [39][40][41] (Figure 4). These cover anionic molecules, such as OH − groups, O 2− 2 , or neutral molecules, including chemisorbed water.…”

Section: X-ray Photoelectron Spectroscopymentioning

confidence: 62%

“…Another method to calculate oxygen per cerium atom ratio takes under consideration the ratio between the sum of the areas from the XPS spectra corresponding to O 1s peaks and those corresponding to Ce 3d. This parameter is noted by x and it represents the actual stoichiometric parameter and takes under consideration the ratio between all concentrations of the oxygen and cerium from the material [41]:…”

Section: X-ray Photoelectron Spectroscopymentioning

confidence: 99%

Revealing the Effect of Synthesis Conditions on the Structural, Optical, and Antibacterial Properties of Cerium Oxide Nanoparticles

Fifere¹,

Airinei²,

Dobromir

et al. 2021

Nanomaterials

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Cerium oxide nanoparticles were prepared by a precipitation method using Ce(IV) sulphate as precursor dispersed in glycerol with varying synthesis parameters such as temperature or precipitating agent. The structural and morphological characteristics of the obtained nanoparticles were investigated by X-ray diffraction, transmission electron microscopy, and diffuse reflectance spectroscopy. The crystallite size of the nanoparticles varied between 13 and 17 nm. The presence of Ce3+ and Ce4+ was proved by XPS data in the CeO2 samples and the conservation of the fluorite structure was evinced by X-ray diffractograms with a contraction of the lattice parameter, regardless of the size of the nanoparticle. From diffuse reflectance spectra, two band gap energy values for the direct transition were observed. Depending on the synthesis condition, the red shift of gap energy and the blue shift of Urbach energy with increasing content of Ce3+ were ascertained. The antibacterial tests revealed that the cerium oxide nanoparticles show good antimicrobial activity towards the common pathogens Escherichia coli and Staphylococcus aureus.

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“…Or rather, by means of doping, the F 2g peaks of the doped samples gradually become lower and wider than that of the pure CeO 2 . Meanwhile, this prominent peak gradually shifts to higher wavelength as shown in the inset of Figure A, due to the disorder or defects in lattice structure originated from doping . Specifically, the F 2g mode of pure CeO 2 locates at 463 cm −1 , and that of Ce 0.85 Cu 0.05 Fe 0.5 Zn 0.5 O 2 has moved to 447 cm −1 .…”

Section: Resultsmentioning

confidence: 91%

Research on microstructure and catalysis effects on hydrogen storage alloy of nanosized three ions co‐doped Ce _{1−3
x} Cu _x Fe _x Zn _x O ₂

Zhang

et al. 2020

Int J Energy Res

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Summary Ce1−3xCu xFe xZn xO2 nano‐particles were synthesized by hydrothermal method. The micro‐structure, spectra features and catalysis effects on hydrogen storage alloy of Ce1−3xCu xFe xZn xO2 were studied. It was researched that the dopants were inserted into the lattice of CeO2 and the solid solubility x was identified as 0.05. The oxygen vacancies contents and degree of lattice distortion were improved, and the band gap energies were decreased. The hydrogen absorption/desorption kinetics of Mg60La10Ni20‐5 mol%Ce1−3xCu xFe xZn xO2 composites were evaluated. The results showed that the catalysts effects were improved by enhancing the doped concentrations. The catalysis mechanism was related with the microstructure and micro‐electronic structure of the catalysts.

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Structural, morphological and optical properties of shuttle-like CeO2 synthesized by a facile hydrothermal method

Cited by 77 publications

References 56 publications

Biosynthesis of 3D/2D Ceo2/Mos2 Nanocomposites with Enhanced Photocatalytic Activity to Degrade Organic Dye in Wastewater and Statistical Optimization of Reaction Parameters

Biosynthesis of 3D/2D Ceo2/Mos2 Nanocomposites with Enhanced Photocatalytic Activity to Degrade Organic Dye in Wastewater and Statistical Optimization of Reaction Parameters

Revealing the Effect of Synthesis Conditions on the Structural, Optical, and Antibacterial Properties of Cerium Oxide Nanoparticles

Research on microstructure and catalysis effects on hydrogen storage alloy of nanosized three ions co‐doped Ce _{1−3
x} Cu _x Fe _x Zn _x O ₂

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Structural, morphological and optical properties of shuttle-like CeO2 synthesized by a facile hydrothermal method

Cited by 77 publications

References 56 publications

Biosynthesis of 3D/2D Ceo2/Mos2 Nanocomposites with Enhanced Photocatalytic Activity to Degrade Organic Dye in Wastewater and Statistical Optimization of Reaction Parameters

Biosynthesis of 3D/2D Ceo2/Mos2 Nanocomposites with Enhanced Photocatalytic Activity to Degrade Organic Dye in Wastewater and Statistical Optimization of Reaction Parameters

Revealing the Effect of Synthesis Conditions on the Structural, Optical, and Antibacterial Properties of Cerium Oxide Nanoparticles

Research on microstructure and catalysis effects on hydrogen storage alloy of nanosized three ions co‐doped Ce 1−3 x Cu x Fe x Zn x O 2

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Research on microstructure and catalysis effects on hydrogen storage alloy of nanosized three ions co‐doped Ce _{1−3
x} Cu _x Fe _x Zn _x O ₂