Preparation method of ZnB2O4:Eu<3+> luminescent material

A luminescent material, znb2o4 technology, applied in the field of chemistry, can solve the problems of shape, difficult to control particle size, insufficient luminous intensity of products, low product purity, etc., to achieve the effect of improving product purity, small particle size, and easy source of raw materials

Inactive Publication Date: 2014-10-01
SHAANXI NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Specific to ZnB 2 o 4 :Eu 3+ Luminescent materials, the current preparation methods are all using the traditional high-temperature solid-phase method, that is, zinc oxide (ZnO), boric acid (H 3 BO 3 ) and europium oxide (Eu 2 o 3 ) is obtained by mixing and grinding raw materials and then roasting at high temperature. The product obtained by this preparation method has low purity, severe agglomeration, and difficult control of shape and particle size.

Method used

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  • Preparation method of ZnB2O4:Eu&lt;3+&gt; luminescent material
  • Preparation method of ZnB2O4:Eu&lt;3+&gt; luminescent material
  • Preparation method of ZnB2O4:Eu&lt;3+&gt; luminescent material

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Embodiment 1

[0032] Step 1): Preparation of Zn[B 3 o 3 (OH) 5 ]H 2 O:Eu 3+

[0033] 2.87g ZnSO 4 ·7H 2 O, 3.81g Na 2 B 4 o 7 10H 2 O and 0.105g Eu 2 o 3 Dissolve in 80mL distilled water, ZnSO 4 ·7H 2 O and Na 2 B 4 o 7 10H 2 O, Eu 2 o 3 The molar ratio of double-distilled water is 1:1:0.06:450, stirred at room temperature for 48 hours, the reaction product was separated by suction filtration, washed three times with double-distilled water and absolute ethanol respectively, and dried in an oven at 40°C for 24 hours , get Zn[B 3 o 3 (OH) 5 ]H 2 O:Eu 3+ .

[0034] Step 2): Preparation of ZnB 2 o 4 :Eu 3+ Luminescent material

[0035] With the Zn[B that step 1) obtains 3 o 3 (OH) 5 ]H 2 O:Eu 3+ Calcined at 900°C for 6 hours and cooled to obtain ZnB 2 o 4 :Eu 3+ Luminescent material.

Embodiment 2

[0049] In the preparation Zn[B of embodiment 1 3 o 3 (OH) 5 ]H 2 O:Eu 3+ In step 1, 2.87g ZnSO 4 ·7H 2 O, 1.91gNa 2 B 4 o 7 10H 2 O and 0.05g Eu 2 o 3 Dissolve in 45mL distilled water, ZnSO 4 ·7H 2 O and Na 2 B 4 o 7 10H 2 O, Eu 2 o 3 , the molar ratio of double distilled water is 1: 0.5: 0.03: 250, stirred at room temperature for 36 hours, the reaction product was separated by suction filtration, washed 3 times with double distilled water and absolute ethanol respectively, and dried at 40°C for 24 hours in an oven. hour, get Zn[B 3 o 3 (OH) 5 ]H 2 O:Eu 3+ . Other steps are identical with embodiment 1, are prepared into ZnB 2 o 4 :Eu 3+ Luminescent material.

Embodiment 3

[0051] In the preparation Zn[B of embodiment 1 3 o 3 (OH) 5 ]H 2 O:Eu3+ In step 1, 2.87g ZnSO 4 ·7H 2 O, 5.72gNa 2 B 4 o 7 10H 2 O and 0.07g Eu 2 o 3 Dissolve in 63mL distilled water, ZnSO 4 ·7H 2 O and Na 2 B 4 o 7 10H 2 O, Eu 2 o 3 , the molar ratio of twice distilled water is 1: 1.5: 0.04: 350, stirred at room temperature for 14 hours, the reaction product was separated by suction filtration, washed 3 times with twice distilled water and absolute ethanol respectively, and dried at 40°C for 24 hours in an oven. hour, get Zn[B 3 o 3 (OH) 5 ]H 2 O:Eu 3+ . Other steps are identical with embodiment 1, are prepared into ZnB 2 o 4 :Eu 3+ Luminescent material.

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Abstract

The invention discloses a preparation method of a ZnB2O4:Eu<3+> luminescent material. The preparation method comprises the steps of with ZnSO4.7H2O, Na2B4O7.10H2O and Eu2O3 as raw materials, uniformly mixing the raw materials, and then, carrying out one-step synthesis at room temperature to obtain Zn[B3O3(OH)5]H2O:Eu<3+>; roasting obtained Zn[B3O3(OH)5]H2O:Eu<3+> at high temperature for phase conversion to obtain the ZnB2O4: Eu<3+> luminescent material. The preparation method disclosed by the invention is easily-obtained in raw materials, simple in step and capable of rapidly and effectively preparing the ZnB2O4:Eu<3+> luminescent material; in addition, the ZnB2O4:Eu<3+> luminescent material obtained by using the preparation method disclosed by the invention is small in particle size and higher in luminescent intensity as comparison with the ZnB2O4:Eu<3+> luminescent material prepared by using the traditional high-temperature solid-phase method and wide in application to different fields such as display, light sources, medicines and the like.

Description

technical field [0001] The present invention relates to a kind of preparation method of luminescent material, relate to ZnB specifically 2 o 4 :Eu 3+ The invention relates to a preparation method of a luminescent material, which belongs to the field of chemistry. Background technique [0002] ZnB 2 o 4 :Eu 3+ The luminescent material is a new type of borate-based luminescent material developed in recent years. Compared with the traditional silicate, aluminate and phosphate-based luminescent materials, it has more stable chemical properties and good color rendering. , High luminous efficiency, has been widely used in different fields such as display imaging, light source, optoelectronics, medicine and so on. [0003] The research on the existing borate system luminescent materials has made some progress in its synthesis method, luminescent performance, luminescent mechanism and so on. In terms of synthesis methods, the prior art mainly synthesizes different types of bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/63
Inventor 刘志宏乔丽钧
Owner SHAANXI NORMAL UNIV
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