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Preparation method for SrB6O10/5H2O:Eu<3> luminous material

A srb6o10·5h2o, luminescent material technology, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of affecting color purity and luminous intensity, affecting luminescent performance, reducing luminous intensity, etc., to achieve high rare earth ion quenching concentration, The effect of easy availability of raw materials and simple preparation method

Inactive Publication Date: 2013-05-01
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, SrB 6 o 10 The preparation temperature of the matrix luminescent material is relatively high, usually higher than 700 ° C, the product is easy to agglomerate, the particles are large, and the shape is irregular, etc., which affect its luminescent performance, and it is found that SrB 6 o 10 Some dopant ions in the matrix luminescent material are easily reduced after being calcined at high temperature in air, such as E u 3+ is reduced to E u 2+ , which will affect its color purity and luminous intensity, reducing the color purity and luminous intensity

Method used

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  • Preparation method for SrB6O10/5H2O:Eu&lt;3&gt; luminous material
  • Preparation method for SrB6O10/5H2O:Eu&lt;3&gt; luminous material
  • Preparation method for SrB6O10/5H2O:Eu&lt;3&gt; luminous material

Examples

Experimental program
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Embodiment 1

[0044] With raw material Sr(OH) 2 ·8H 2 O5.3g is example, preparation SrB 6 o 10 ·5H 2 O: Eu 3+ The method for the luminescent material consists of the following steps:

[0045] (1) Weigh 5.3g Sr(OH) 2 ·8H 2 O with 0.45g Eu(NO 3 ) 3 ·6H 2 O placed in 180mL deionized water, Sr(OH) 2 ·8H 2 O, Eu(NO 3 ) 3 ·6H 2 The molar ratio of O to deionized water is 1:0.05:500, heated at 80°C for 30 minutes;

[0046] (2) Weigh 15g H 3 BO 3 and 2.0 g Na 2 B 4 o 7 10H 2 Dissolve O in 200mL of deionized water until completely dissolved, add it to the heated mixture in step (1), add 1.45g of cetyltrimethylammonium bromide (CTAB), Sr(OH) 2 ·8H 2 O, H 3 BO 3 、Na 2 B 4 o 7 10H 2 The molar ratio of O and cetyltrimethylammonium bromide (CTAB) was 1:12:0.25:0.2, heated at 60 °C for 30 min, ultrasonicated at 60 °C for 1 h at 60 Hz, and transferred to a closed reactor React at 80°C for 12 hours;

[0047] (3) The reaction product of step (2) was separated by suction filtratio...

Embodiment 2

[0049] With raw material Sr(OH) 2 ·8H 2 O5.3g is example, preparation SrB 6 o 10 ·5H 2 O: Eu 3+ The method for the luminescent material consists of the following steps:

[0050] (1) Weigh 5.3g Sr(OH) 2 ·8H 2 O with 0.18g Eu(NO 3 ) 3 ·6H 2 O placed in 140mL deionized water, Sr(OH) 2 ·8H 2 O, Eu(NO 3 ) 3 ·6H 2 The molar ratio of O to deionized water is 1:0.02:400, heated at 80°C for 30 minutes;

[0051] (2) Weigh 12.5g H 3 BO 3 and 2.0 g Na 2 B 4 o 7 10H 2 Dissolve O in 200mL of deionized water until completely dissolved, add it to the heated mixture in step (1), add 1.45g of cetyltrimethylammonium bromide (CTAB), Sr(OH) 2 ·8H 2 O and H 3 BO 3 、Na 2 B 4 o 7 10H 2 O. The molar ratio of cetyltrimethylammonium bromide (CTAB) is 1:10:0.25:0.2, heated at 60°C for 30 minutes, ultrasonicated at 60°C for 1 hour, and the ultrasonic frequency is 60Hz, transferred to a closed reactor React at 80°C for 12 hours;

[0052] Other steps are identical with embodimen...

Embodiment 3

[0054] With raw material Sr(OH) 2 ·8H 2 O5.3g is example, preparation SrB 6 o 10 ·5H 2 O: Eu 3+ The method for the luminescent material consists of the following steps:

[0055] (1) Weigh 5.3g Sr(OH) 2 ·8H 2 O with 0.70g Eu(NO 3 ) 3 ·6H 2 O placed in 220mL deionized water, Sr(OH) 2 ·8H 2 O, Eu(NO 3 ) 3 ·6H 2 The molar ratio of O to deionized water is 1:0.08:600, heated at 80°C for 30 minutes;

[0056] (2) Weigh 16g H 3 BO 3 and 2.0 g Na 2 B 4 o 7 10H 2 Dissolve O in 200mL of deionized water until completely dissolved, add it to the heated mixture in step (1), add 1.45g of cetyltrimethylammonium bromide (CTAB), Sr(OH) 2 ·8H 2 O and H 3 BO 3 、Na 2 B 4 o 7 10H 2 O. The molar ratio of cetyltrimethylammonium bromide (CTAB) is 1:13:0.25:0.2, heated at 60°C for 30 minutes, ultrasonicated at 60°C for 1 hour, and the ultrasonic frequency is 60Hz, transferred to a closed reactor React at 80°C for 12 hours;

[0057] Other steps are identical with embodiment ...

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Abstract

The invention relates to a preparation method for a nano-structure strontium borate SrB6O10 / 5H2O:Eu<3> luminous material. According to the invention, the strontium borate is uniform in shape and adopts a nano structure assembled by nanosheets, and the thickness of each of the nanosheet is 100 nm; and analytic reagents SrOH2 / 8H2O, Na2B4O7 / 10H2O, H3BO3 and EuNO3, which are purchased through commercial sources, are taken as main raw materials, and a simple water solution reaction method is adopted to prepare the material under the assistance of additives at the temperature of 50-80 DEG C. The method is simple and low in reaction temperature. The strontium borate SrB6O10 / 5H2O:Eu<3> luminous material is high in color purity and in rare earth ion quenching concentration, and strong in Eu<3> stability compared with an anhydrous strontium borate substrate luminescent material SrB6O10:Eu<3>, and can be applied to the fields of development displaying, light sources and the like.

Description

technical field [0001] The invention belongs to the technical field of luminescent material research, in particular to a nanoscale structure of SrB 6 o 10 ·5H 2 O:Eu 3+ Preparation method of luminescent material. Background technique [0002] Since borate-based luminescent materials have the characteristics of simple synthesis process, stable chemical properties, good color rendering, and high luminous efficiency compared with silicate, aluminate and phosphate-based luminescent materials, a lot of research has been done on this in recent years. Some progress has been made in the study of its luminous properties and luminescent mechanism, and it has been widely used in different fields such as display imaging, light source, optoelectronics, and medicine. [0003] At present, the research on borate system luminescent materials has made some progress in its synthesis method, luminescence performance, luminescence mechanism, etc., mainly using high-temperature solid-phase me...

Claims

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Application Information

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IPC IPC(8): C09K11/63
Inventor 刘志宏黄宏升
Owner SHAANXI NORMAL UNIV
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