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Low-temperature preparation method of ZnB2O4 luminous material

A luminescent material, znb2o4 technology, applied in the field of low-temperature preparation of zinc borate ZnB2O4 luminescent material, can solve the problems of not maintaining product homogeneity and uniformity, particle agglomeration, energy consumption, etc. uniformity of diameter, reduction of calcination temperature, and reduction of energy consumption

Inactive Publication Date: 2017-10-10
LIAONING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purity of the product obtained by this preparation method is not high, the particle agglomeration is serious, and the homogeneity of the product, the physical properties of the particle and the uniformity of the particle size cannot be well maintained, and the high temperature consumes energy and money, thus reducing the cost of high temperature solid-state reaction. Calcination temperature, save cost, reduce energy consumption, improve zinc borate ZnB 2 o 4 The purity and uniformity of the

Method used

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  • Low-temperature preparation method of ZnB2O4 luminous material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 A kind of zinc borate ZnB 2 o 4 Low temperature preparation method of luminescent material

[0030] Proceed as follows:

[0031] 1) Weigh 3.8137g Na respectively 2 B 4 o 7 10H 2 O, 2.9751g Zn(NO 3 ) 2 ·6H 2 O.

[0032] 2) Add the weighed sample into a three-necked flask equipped with a condenser tube and a mechanical stirrer under stirring, and add 100 mL of distilled water to obtain a mixture.

[0033] 3) The mixture was placed in a water bath at 80° C. for 10 hours to obtain a white solid. The resulting white solid was repeatedly washed with distilled water and ethanol for 3-6 times, and then dried at 60° C. for 12 hours to obtain a precursor.

[0034] 4) The precursor is calcined at 500°C for 3 hours, the heating rate is 5°C per minute, and the target product can be obtained after cooling.

Embodiment 2

[0035] Embodiment 2 A kind of zinc borate ZnB 2 o 4 Low temperature preparation method of luminescent material

[0036] Only change the calcination temperature in step 4), that is, calcine the precursor at 600° C. for 3 hours; other steps are the same as in Example 1 to obtain the target product.

Embodiment 3

[0037] Embodiment 3 A kind of zinc borate ZnB 2 o 4 Low temperature preparation method of luminescent material

[0038] Only change the calcination temperature in step 4), that is, calcine the precursor at 700° C. for 3 hours; other steps are the same as in Example 1 to obtain the target product.

[0039] Effect of calcination temperature on zinc borate ZnB 2 o 4 Influence of luminescent material: It can be seen from Examples 1-3 that when the calcination temperature is 700°C, the obtained zinc borate ZnB 2 o 4 The particle size of the powder is relatively uniform and the purity is high. Therefore the preferred zinc borate ZnB 2 o 4 The optimum calcination temperature is 700°C.

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Abstract

The invention discloses a low-temperature preparation method of a ZnB2O4 luminous material. The method comprises the following steps of (1) respectively weighting a zinc source and a boron source; (2) uniformly mixing the weighed samples; adding distilled water to obtain a mixture; (3) performing water bath treatment on the mixture for 10 hours at the temperature of 60 to 100 DEG C to obtain white solid; repeatedly washing the obtained white solids for 3 to 6 times by distilled water and ethanol; then, performing drying for 12 hours at 60 DEG C to obtain predecessors; (4) roasting the predecessors for 2 to 5 hours at 500 to 700 DEG C; obtaining a target product of ZnB2O4 after the cooling. The method is simple; the speed is high; the green and environment-friendly effects are achieved; the production cost is low; the energy consumption is low; the prepared product has high optical purity and good monochromaticity.

Description

technical field [0001] The invention belongs to the field of inorganic materials, in particular to a zinc borate ZnB 2 o 4 Low-temperature preparation method of luminescent material. Background technique [0002] Zinc borate ZnB 2 o 4 The boron atom in B adopts SP 2 Hybridization with three oxygen atoms O to form a borate ion BO with a planar triangular structure 3 3- , which has excellent chemical stability and optical stability, and has received extensive attention. [0003] Currently, on zinc borate ZnB 2 o 4 The preparation method is mainly a high-temperature solid-phase method, which is generally based on ZnO, H 3 BO 3 As a raw material, it is obtained by calcination at 900°C after fully grinding and mixing at a ratio of 1:2. The purity of the product obtained by this preparation method is not high, the particle agglomeration is serious, and the homogeneity of the product, the physical properties of the particle and the uniformity of the particle size cannot ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B35/12C09K11/63
CPCC01B35/127C01P2002/82C01P2004/03C09K11/63
Inventor 张向东曹世伟葛春华宋波韩维坊任美玲关宏宇
Owner LIAONING UNIVERSITY
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