Synthesis and luminescent properties of CaCO3:Eu3+@SiO2 phosphors with core–shell structure

Kang, Ming; Chen, Kexu; Mou, Yongren; Sun, Rong

doi:10.1007/s00339-018-1668-4

Cited by 7 publications

(6 citation statements)

References 20 publications

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“…Nekhamanurak et al 27 found that surface modification of calcium carbonate using silica can improve the compatibility of calcium carbonate with polylactic acid, and the mechanical properties of PLA-CaCO 3 @SiO 2 composites are greatly improved. Liu et al 20 have similar findings in the study of silicone rubber-CaCO 3 :Eu 3þ @SiO 2 composites. The coating of silica can increase the compatibility of CaCO 3 with silicone rubber.…”

Section: Introductionsupporting

confidence: 60%

“…Liu et al. 20 have similar findings in the study of silicone rubber-CaCO 3 :Eu 3+ @SiO 2 composites. The coating of silica can increase the compatibility of CaCO 3 with silicone rubber.…”

Section: Introductionsupporting

confidence: 59%

“…31,32 The results indicate that the ligand works as “antenna” for the Eu 3+ ions and the efficient energy transfer from DBM and phen to Eu 3+ ion has occurred, augmenting the number of photons converted into visible region. The CSF-CaCO 3 has a wider excitation band than traditional RE ion-doped CaCO 3 based phosphor such as CaCO 3 :Eu 3+ , 18 and CaCO 3 :Eu 3+ @SiO 2 , 20 which means it can match more excitation light sources and has a wider application range. Moreover, due to the combination of organic ligands, the phosphor has a stronger fluorescent intensity because of the “antenna effect”.…”

Section: Resultsmentioning

confidence: 99%

“…19 and Liu et al. 20 studied the luminescence mechanism and luminescent sites of Eu 3+ ion-doped CaCO 3 . These methods are groundbreaking, but the fluorescent performance is still unsatisfactory, and the fluorescent information is vague in LSCM testing.…”

Section: Introductionmentioning

confidence: 99%

“…17 Sun et al added sodium oleate in the process of preparing Eu 3þ iondoped CaCO 3 phosphor, which not only improved the luminescence intensity but also ameliorated the surface properties. 18 Recently, Gao et al 19 and Liu et al 20 studied the luminescence mechanism and luminescent sites of Eu 3þ ion-doped CaCO 3 . These methods are groundbreaking, but the fluorescent performance is still unsatisfactory, and the fluorescent information is vague in LSCM testing.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of fluorescent calcium carbonate and visualization of its dispersion states in polypropylene

Kang

Chen

et al. 2019

Journal of Composite Materials

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The dispersion states of fillers in the polymer matrix is an important factor to determine the properties of the polymer composites. Mastering the dispersion structure of inorganic minerals such as calcium carbonate in the polymer matrix is of great significance for the design of high performant polymer composites. Currently, due to the limitations of conventional electron microscope imaging capabilities, it is difficult to understand the internal dispersion structure of fillers in polymer composites comprehensively, regionally and stereoscopically. Here, we successfully embed the rare earth complex into the silica of the calcium carbonate surface to realize the fluorescent labeling of the calcium carbonate fillers. The fluorescent calcium carbonate exhibited broad excitation band ranging from 220 nm to 440 nm and showed bright red under ultraviolet light (365 nm). The two-dimensional dispersion states of the fillers at different depths in the polymer composite were obtained by the fluorescent imaging ability of laser scanning confocal microscope; these two-dimensional confocal images were further three-dimensionally reconstructed through Avizo Fire VSG software, and the spatial distribution of fillers in polymer composite was obtained without damage. This characterization method provides a new noninvasive method for studying the dispersion structure of fillers in polymers.

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Section: Introductionsupporting

confidence: 60%

“…Liu et al. 20 have similar findings in the study of silicone rubber-CaCO 3 :Eu 3+ @SiO 2 composites. The coating of silica can increase the compatibility of CaCO 3 with silicone rubber.…”

Section: Introductionsupporting

confidence: 59%