Structure and photoluminescence of amorphous silicate composites containing ZnO particles synthesized from layered sodium silicate

Chen, Yufeng; Yu, Gensheng; Li, Fēi; Wei, Junchao

doi:10.1016/j.jnoncrysol.2012.05.013

Cited by 11 publications

(4 citation statements)

References 48 publications

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“…14 The bands from 745 to 467 cm −1 are contributed from symmetric stretching and bending vibrations of Si-O-Si bonds. 31 Furthermore, an absorption at 1462 cm −1 from CO 3 2− groups possibly resulted from the reaction of CO 2 in air with Na 2 SiO 3 during the sample preparation. 29 However, the absorptions for the deactivated Na 2 SiO 3 @Ni/C catalyst became weak (Fig.…”

Section: Biodiesel Productionmentioning

confidence: 99%

Production of biodiesel and hydrogen from plant oil catalyzed by magnetic carbon-supported nickel and sodium silicate

Zhang

Yao

et al. 2016

Green Chem.

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Section: Biodiesel Productionmentioning

confidence: 99%

Production of biodiesel and hydrogen from plant oil catalyzed by magnetic carbon-supported nickel and sodium silicate

Zhang

Yao

et al. 2016

Green Chem.

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“…Besides that the samples showed the minor phases of Zinc ions, cristobalite and samarium. The intense diffraction peaks revealed the formation of larger crystallites indicating the present of amorphous silica in the sample [13]. The broad diffraction peaks were due to the smaller crystallite sizes of zinc oxides nanoparticles in the samples [14].…”

Section: Resultsmentioning

confidence: 97%

Effect of Samarium Oxide on Structural and Optical Properties of Zinc Silicate Glass Ceramics from Waste Material

Auwalu

Hotoro

Jamo

et al. 2018

NHC

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This work indicates the synthesis of samarium doped zinc silicate (willemite) glass ceramics with different weight concentrations. Solid-state reaction technique was used to make up the samples, with waste rice husks as silicate source. The measurement of X-ray diffraction revealed sharp and broad diffraction peaks. Besides, the Field emission scanning electron microscope exhibited the poly grains morphology of the crystalline samples. Consequently, samarium strips were growing in size as the weight percent of dopant was increased. While Fourier transforms infrared spectra, showed slight variation peaks with diverse dopant concentrations. Then the energy band gaps of samarium doped willemite glass ceramics were reduced with the increment of samarium dopant concentrations. The photoluminescence measurement exhibited the red emission which agreed to the 4G5/2 → 6H11/6 (646.71 nm) under the blue excitation.

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“…Traces of zinc ions merged with cristobalite, willemite or with Zn 2 SiO 4 : Sm located at 2θ=36.23°, 39.00°, and 54.46° indexed as (020),(223), and (063) [9]. To ascertain the features of the zinc oxide nanoparticles incorporated into the silicon dioxide microparticles [12], there is the need to understand the thermal diffusivity of the matrix samples. The (70-X) Zn 2 XSm30SiO 4 samples at X = 0, 1, 3 and 5 wt% revealed exponential gradient decay relationship with the 1000/T axis.…”

Section: Resultsmentioning

confidence: 99%

Structural and Thermal Diffusivity of Sm<sup>3+</sup> Doped Willemite Glass Ceramics System from Waste Materials

Auwalu

Halimah

Zaidan

et al. 2017

SSP

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This study presents the formation of the zinc silicate from amorphous silica obtained from waste rice ash, with the addition of zinc oxide nanoparticles by conventional solid-state technique. The XRD showed the sharp intensive and small peaks while FTIR results indicated very slight variations in their peaks with the increased of samarium dopant concentrations. The FESEM clearly showed the cracks of zinc silicate doped with samarium the samples. The least thermal diffusivity values from 0.2039 to 0.1392 mm2/s acquired by pure zinc silicate (willemite) sintered at 1000°C. The thermal diffusivity was increasing with dopant concentration and decreasing with the rise in temperature (27-500°C). The thermal diffusivity curves revealed the exponential decay with the pores and cracks in the samples.

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Structure and photoluminescence of amorphous silicate composites containing ZnO particles synthesized from layered sodium silicate

Cited by 11 publications

References 48 publications

Production of biodiesel and hydrogen from plant oil catalyzed by magnetic carbon-supported nickel and sodium silicate

Production of biodiesel and hydrogen from plant oil catalyzed by magnetic carbon-supported nickel and sodium silicate

Effect of Samarium Oxide on Structural and Optical Properties of Zinc Silicate Glass Ceramics from Waste Material

Structural and Thermal Diffusivity of Sm<sup>3+</sup> Doped Willemite Glass Ceramics System from Waste Materials

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