Preparation method and application of rare earth doped potassium fluoride bismuth potassium luminescent nanomaterial

Abstract

The disclosure belongs to the field of rare earth doped luminescent materials, and specifically provides a preparation method and application of a rare earth doped fluorine bismuth potassium luminescent nano material. The basic composition of luminescent nanomaterials is K 0.3 Bi 0.7‑x‑y f 2.4 :xYb,yLn, where Ln 3+ for Er 3+ , Tm 3+ , Ho 3+ One of, 0≤x≤0.30, 0≤y≤0.05, or K 0.3 Bi 0.7‑z‑t f 2.4 :zM,tN, where M and N are Ce 3+ , Pr 3+ ,Nd 3+ , Sm 3+ ,Gd 3+ , Eu 3+ ,Tb 3+ , Dy 3+ One or two of them, 0≤z<0.35, 0≤t<0.35. The preparation method comprises the following steps: adding Bi-containing compounds and rare earth element-containing compounds into dilute hydrochloric acid solution, stirring and dissolving at room temperature to 90°C to prepare solution A; adding potassium fluoride to deionized water, Stir and dissolve at 90°C to form solution B; add solution A to solution B and stir at room temperature to 90°C. After the reaction, the precipitate obtained is separated by centrifugation and washed with distilled water to obtain the product. The method solves the problems in the prior art that synthesis of bismuth-containing rare earth-doped luminescent nanomaterials at low temperature has poor stability and rapid synthesis of bismuth-containing rare earth-doped luminescent nanomaterials in aqueous solution.

Description

technical field [0001] The disclosure belongs to the field of rare earth doped luminescent materials, and specifically provides a preparation method and application of a rare earth doped fluorine bismuth potassium luminescent nano material. Background technique [0002] The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0004] Rare earth luminescent nanomaterials have the characteristics of narrow emission band, long fluorescence lifetime, low toxicity, large Stokes shift, adjustable luminescent color, and no photobleaching and scintillation. And lighting display ...

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