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Issue 20, 2017
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Controlled synthesis of calcite/vaterite/aragonite and their applications as red phosphors doped with Eu3+ ions

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Abstract

Calcium carbonate (CaCO3) particles including three anhydrous polymorphs (calcite/vaterite/aragonite) have been prepared in the absence and presence of sodium carboxyl methylcellulose (NaCMC), which further serve as hosts to prepare the phosphors doped with Eu3+. The as-obtained samples were characterized by means of XRD, SEM, and PL techniques. The experimental results reveal that vaterite, as a less stable polymorph, will transform into calcite in aqueous solution without any additive. In contrast, NaCMC can induce the formation of vaterite phase at 50 °C and the formation of aragonite phase at 90 °C in aqueous solution. In addition, the polymorph-dependent luminescence properties of CaCO3:Eu3+ have been briefly studied by excitation spectra, emission spectra, PL decay curves and quantum yield.

Graphical abstract: Controlled synthesis of calcite/vaterite/aragonite and their applications as red phosphors doped with Eu3+ ions

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Publication details

The article was received on 23 Feb 2017, accepted on 19 Apr 2017 and first published on 19 Apr 2017


Article type: Paper
DOI: 10.1039/C7CE00375G
Citation: CrystEngComm, 2017,19, 2758-2767
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    Controlled synthesis of calcite/vaterite/aragonite and their applications as red phosphors doped with Eu3+ ions

    Y. Dai, H. Zou, H. Zhu, X. Zhou, Y. Song, Z. Shi and Y. Sheng, CrystEngComm, 2017, 19, 2758
    DOI: 10.1039/C7CE00375G

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