Synthesis of rubidium fluorophosphatozirconates in the ZrO2-H3PO4-RbF-H2O system and their luminescent properties |
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| Authors: | M M Godneva D L Motov N N Boroznovskaya V Ya Kuznetsov |
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| Institution: | 1. Tananaev Institute of the Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Research Center, Russian Academy of Sciences, ul. Fersmana 14, Apatity, Murmansk oblast, 184209, Russia
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| Abstract: | Rubidium fluorophosphatozirconates (RFPZs) were synthesized along sections of the ZrO2-H3PO4-RbF-H2O system where PO 4 3? /Zr = 1–2 (mol/mol) and RbF/Zr = 1–5 (mol/mol) and the initial solution contains 2–5 wt % ZrO2. The following RFPZs have been isolated for the first time: RbZrF2PO4 · 0.5H2O, Rb3H3Zr3F3(PO4)5, and RbZr3F4(PO4)3 · 1.5H2O. Their formation fields were determined. The compounds were characterized using powder X-ray diffraction, crystal-optical analysis, chemical analysis, electron probe microanalysis, thermal analysis, and IR spectroscopy. Luminescent properties of the compounds were measured. All RFPZs are orthophosphates, have high thermal durability, and X-ray luminescence (XRL). Rb3H3Zr3F3(PO4)5 has the highest XRL intensity. |
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