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Cr<3+>-doped zirconium silicate as well as preparation method and application thereof

A zirconium silicate, wet ball milling technology, applied in chemical instruments and methods, luminescent materials, etc., to achieve the effects of simple preparation process, wide source, good chemical stability and thermal stability

Inactive Publication Date: 2021-07-02
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, there are still few studies on the spectral properties of chromium-doped zirconium silicate. At present, researchers are still exploring laser materials, and the various requirements of modern laser material applications require the emergence of new materials, and for The spectral properties of chromium-doped zirconium silicate and the specific valence state of chromium need to be further studied

Method used

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  • Cr&lt;3+&gt;-doped zirconium silicate as well as preparation method and application thereof
  • Cr&lt;3+&gt;-doped zirconium silicate as well as preparation method and application thereof
  • Cr&lt;3+&gt;-doped zirconium silicate as well as preparation method and application thereof

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preparation example Construction

[0020] Embodiments of the present application provide a doped Cr 3+ The preparation method of zirconium silicate, comprises the steps:

[0021] (1) Take each raw material by molecular formula stoichiometric ratio, wherein, said raw material comprises ZrO 2 , SiO 2 and Cr 2 o 3 ;

[0022] (2) Add the raw materials in step (1) to Li 2 CO 3 Finally, fully mix evenly, put the mixture in deionized water for wet ball milling, and mix evenly again to obtain the mixture;

[0023] (3) The mixture is dried in an oven, and the dried powder is fully ground in an agate jar;

[0024] (4) After grinding, the powder is put into a mold for tabletting;

[0025] (5) Put the powder obtained in the above step (4) into a high-temperature muffle furnace, and calcinate in an air atmosphere to obtain a zirconium silicate sample.

[0026] Optionally, the raw materials used in step (1) also include Li 2 CO 3 , Li in the step (1) 2 CO 3 Occupies 0.1 wt% of the total raw material weight.

[...

Embodiment 1

[0038] Preparation of 0.1mol% Cr 3+ : ZrSiO4

[0039] (1) ZrO 2 , SiO 2 , Cr 2 o 3 As raw materials, each raw material is weighed according to the molecular formula stoichiometric ratio.

[0040] (2) Add the raw materials in the above step (1) to Li 2 CO 3 Afterwards, fully mix evenly, put the mixture in deionized water and wet ball mill, and mix evenly again to obtain the mixture.

[0041] (3) The mixture is dried in an oven, and the dried powder is fully ground evenly in an agate jar.

[0042] (4) After grinding, put the powder into a mold for tableting.

[0043] (5) Put the powder obtained in the above step (4) into a high-temperature muffle furnace, and calcinate in an air atmosphere to obtain a zirconium silicate sample.

[0044] Preferably, the raw material used in step (1) is ZrO 2 , SiO 2 , Cr 2 o 3 , Li 2 CO 3 , the mineralizer Li 2 CO 3 The total amount is 0.1 wt%. Weigh 0.01 g of dichromium trioxide, 3.32 g of silicon dioxide, 6.67 g of zirconia, a...

Embodiment 2

[0053] Preparation of 0.3mol% Cr 3+ : ZrSiO 4

[0054] (1) ZrO 2 , SiO 2 , Cr 2 o 3 As raw materials, each raw material is weighed according to the molecular formula stoichiometric ratio.

[0055] (2) Add the raw materials in the above step (1) to Li 2 CO 3 Afterwards, fully mix evenly, put the mixture in deionized water and wet ball mill, and mix evenly again to obtain the mixture.

[0056] (3) The mixture is dried in an oven, and the dried powder is fully ground evenly in an agate jar.

[0057] (4) After grinding, put the powder into a mold for tableting.

[0058] (5) Put the powder obtained in the above step (4) into a high-temperature muffle furnace, and calcinate in an air atmosphere to obtain a zirconium silicate sample.

[0059] Preferably, the raw material used in step (1) is ZrO 2 , SiO 2 , Cr 2 o 3 , Li 2 CO 3 , the mineralizer Li 2 CO 3 The total amount is 0.1 wt%. Weigh 0.03 g of dichromium trioxide, 3.31 g of silicon dioxide, 6.66 g of zirconia,...

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Abstract

The invention discloses a Cr<3+>-doped zirconium silicate laser material as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) weighing raw materials according to the stoichiometric ratio of a molecular formula, wherein the raw materials comprise ZrO2, SiO2 and Cr2O3; (2) adding Li2CO3 into the raw materials in the step (1), fully and uniformly conducting mixing, putting the mixture in deionized water for wet ball milling, and uniformly conducting mixing to obtain a mixture; (3) drying the mixture in a drying oven, and sufficiently and uniformly grinding the dried powder in an agate tank; (4) after grinding, putting the powder into a mold for tabletting; and (5) putting the powder obtained in the step (4) into a high-temperature muffle furnace, and conducting calcining in an air atmosphere to obtain a zirconium silicate sample. The preparation method is simple, does not generate harmful substances, can be synthesized at lower temperature, has high luminance, and can be well applied to the field of laser materials and the aspect of anti-counterfeiting application.

Description

technical field [0001] The invention relates to the field of inorganic materials, in particular to a Cr-doped 3+ Zirconium silicate material and its preparation method and application. Background technique [0002] In recent years, transition metal-doped luminescent materials have become a research hotspot, such as Ti ions, Mn ions, Cr ions, etc. Ti-doped sapphire and Cr-doped ruby ​​are widely used in lasers, and the spectral research on Cr ions has never stopped. Cr ions exhibit different valence states in different matrices, Cr 2+ 、Cr 3+ 、Cr 4+ 、Cr 5+ The isoluminescent center also provides a wealth of spectral data, and under the action of different crystal fields, the spectral performance is also different, and has been widely used in lasers. This makes Cr ion-doped laser materials an important topic now. [0003] Zirconium silicate is a tetragonal (I41 / amd) silicate inorganic material. As a mineral that exists naturally on the earth, it can preserve trace radioac...

Claims

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Application Information

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IPC IPC(8): C09K11/67
CPCC09K11/685
Inventor 张少伯杨秋红胡娟
Owner SHANGHAI UNIV
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