Novel 3D flower-like TiO2:Eu3+ hierarchitectures: Hydrothermal synthesis and luminescent properties

Zhang, Hongguang; Ye, Sheng; Zhou, Xiuqing; Song, Yanhua; Shi, Zhan; Xu, Xuechun; Zou, Haifeng

doi:10.1016/j.powtec.2015.01.024

Cited by 13 publications

(2 citation statements)

References 34 publications

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“…Figure 5 shows the emission spectra of CSF-CaCO 3 with the Eu(DBM) 3 phen dopant concentration of 1–7 mol%, respectively. Due to the quenching effect of the RE complex doping concentration, 29,33 the CSF-CaCO 3 has the strongest luminous intensity when the doping concentration is 5 mol%. The above data prove that the surface layer of CSF-CaCO 3 is successfully and uniformly doped by Eu(DBM) 3 phen, and has a wide (220 nm–420 nm) excitation band, which lays a foundation for visualizing the spatial dispersion states of fillers in composite materials.…”

Section: Resultsmentioning

confidence: 99%

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: Resultsmentioning

confidence: 99%

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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“…TiO 2 has an excellent luminescence property due to doping comparing lanthanides doped other core lattices. TiO 2 is the potential material in the industry due to its high optical transparency, thermal stability, chemically inactive and desirable mechanical properties [6]. The multicolour light of rare-earth ions can be directly generated from chromatic or monochromatic external displays [7].…”

Section: Introductionmentioning

confidence: 99%

Effect of samarium (Sm³⁺) doping on structural, optical properties and photocatalytic activity of titanium dioxide nanoparticles

Arasi¹,

Madhavan²,

Raj³

2018

Journal of Taibah University for Science

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The current work reports the hydrothermal preparation of pure TiO 2 and Sm 3+ ion-doped TiO 2 nanoparticles and the influence of samarium ion doping in the TiO 2 host lattice. The assynthesized both pure and Sm 3+ -doped TiO 2 nano samples were extensively characterized by powder X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), energy dispersive X-ray spectroscopy (EDX) and UV-VIS spectroscopy. XRD pattern reveals the crystalline size and phase of the nanoparticles and the formation of spherical morphology was confirmed by HR-TEM observation. The incorporation of Sm in TiO 2 is confirmed by EDX. The optical properties of TiO 2 and Sm 3+ :TiO 2 nanoparticles have been studied using diffuse reflectance spectroscopy analysis. The addition of the dopant ion markedly increases the bandgap from 3.39 to 3.46 eV. The photocatalytic activity of the crystalline as-synthesized nanoparticles was examined for the degradation of Rhodamine B induced by UV irradiation and the degradation efficiency is also reported. ARTICLE HISTORY

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Synthesis and luminescent properties of monodisperse SiO 2 @SiO2:Eu(DBM)3phen microspheres with core-shell structure by sol–gel method

Mou

Kang

Wang

et al. 2017

J Sol-Gel Sci Technol

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Novel 3D flower-like TiO2:Eu3+ hierarchitectures: Hydrothermal synthesis and luminescent properties

Cited by 13 publications

References 34 publications

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

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

Effect of samarium (Sm³⁺) doping on structural, optical properties and photocatalytic activity of titanium dioxide nanoparticles

Synthesis and luminescent properties of monodisperse SiO 2 @SiO2:Eu(DBM)3phen microspheres with core-shell structure by sol–gel method

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Novel 3D flower-like TiO2:Eu3+ hierarchitectures: Hydrothermal synthesis and luminescent properties

Cited by 13 publications

References 34 publications

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

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

Effect of samarium (Sm3+) doping on structural, optical properties and photocatalytic activity of titanium dioxide nanoparticles

Synthesis and luminescent properties of monodisperse SiO 2 @SiO2:Eu(DBM)3phen microspheres with core-shell structure by sol–gel method

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Effect of samarium (Sm³⁺) doping on structural, optical properties and photocatalytic activity of titanium dioxide nanoparticles