Synthesis of micron-sized porous CeO2SiO2 composite particles for ultraviolet absorption

Kim, Sun Kyung; Chang, Hyunju; Jang, Hee Dong

doi:10.1016/j.apt.2016.10.011

Cited by 7 publications

(2 citation statements)

References 29 publications

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“…Surprisingly, the surface of CeO 2 NPs was not modified, but its average particle size dispersed in the matrix was nanometer size. However, the optical properties and corresponding mechanisms of CeO 2 –cellulose hybrids have not been investigated in detail as other CeO 2 hybrids [22]. Moreover, the durability of the performance of the samples prepared by the dip process may be a challenge, requiring a high affinity between CeO 2 and the fabrics.…”

Section: Introductionmentioning

confidence: 99%

Use of CeO2 Nanoparticles to Enhance UV-Shielding of Transparent Regenerated Cellulose Films

et al. 2019

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The major challenge in preparing polymer nanocomposites is to prevent the agglomeration of inorganic nanoparticles (NPs). Here, with regenerated cellulose (RC) films as supporting medium, UV-shielding and transparent nanocomposite films with hydrophobicity were fabricated by in situ synthesis of CeO2 NPs. Facilitated through the interaction between organic and inorganic components revealed by X-ray diffraction (XRD) and Fourier transformation infrared spectroscopy (FTIR) characterization, it was found that CeO2 NPs were uniformly dispersed in and immobilized by a cellulose matrix. However some agglomeration of CeO2 NPs occurred at higher precursor concentrations. These results suggest that the morphology and particle size of CeO2 and the corresponding performance of the resulting films are affected by the porous RC films and the concentrations of Ce(NO3)3·6H2O solutions. The optimized nanocomposite film containing 2.95 wt% CeO2 NPs had more than 75% light transmittance (550 nm), high UV shielding properties, and a certain hydrophobicity.

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Section: Introductionmentioning

confidence: 99%

Use of CeO2 Nanoparticles to Enhance UV-Shielding of Transparent Regenerated Cellulose Films

et al. 2019

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“…Such a structure makes it easy to form oxygen vacancies and perform element doping, and it maintains the cubic structure of fluorite with good chemical stability [ 2 ]. Due to its excellent properties, cerium oxide is currently used in a wide range of fields, such as CO 2 conversion catalysis [ 3 ], photocatalysis [ 4 ], ultraviolet absorption [ 5 ], biomaterials [ 6 ], thermal coatings [ 7 ] and polishing abrasives [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of a Flaky CeO2 with Nanocrystals Used for Polishing

Zhang,

Gou

2024

Materials

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It is important to adapt the morphology of CeO2 to different applications. A novel flaky CeO2 with nanocrystals was successfully synthesized using the ordinal precipitation method and calcination. The size of the flaky CeO2 was about 10 μm, and the nanocrystals were about 100 nm. Under the action of the precipitant NH4HCO3, Ce3+ nucleated in large quantities. The nanosized crystals gathered into flakes driven by the surface energy. As the calcination temperature increased, the grains grew slowly by mass transfer due to the slow diffusion of reactants. By adding AlOOH to the starting material, the Al3+ doped into the CeO2 increased the content of Ce3+ in the CeO2, which improved the chemical activity of the CeO2. When the starting material’s Al:Ce ratio was 5:1, the Ce3+ increased to 31.11% in the CeO2, which provided good application potential in the polishing field. After polishing by the slurry of flaky CeO2 for 1 h, the SiC surface roughness reduced from 464 nm to 11 nm.

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Preparation of a Lotus-Leaf-Like Coating with Robust Super-Hydrophobicity and UV-Resistant Ability

Xiao

Yang

Shen

et al. 2023

J Inorg Organomet Polym

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Synthesis of micron-sized porous CeO2SiO2 composite particles for ultraviolet absorption

Cited by 7 publications

References 29 publications

Use of CeO2 Nanoparticles to Enhance UV-Shielding of Transparent Regenerated Cellulose Films

Use of CeO2 Nanoparticles to Enhance UV-Shielding of Transparent Regenerated Cellulose Films

Synthesis of a Flaky CeO2 with Nanocrystals Used for Polishing

Preparation of a Lotus-Leaf-Like Coating with Robust Super-Hydrophobicity and UV-Resistant Ability

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