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Method for preparing InBO3:Eu<3+> luminescent material by adopting boric acid melting process

A technology of boric acid melting method and luminescent materials, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., to achieve the effects of mild reaction conditions, easy availability of raw materials, and high purity

Inactive Publication Date: 2016-06-22
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome existing InBO 3 :Eu 3+ The shortcomings of the preparation method of luminescent materials provide an InBO with simple operation, mild reaction conditions, controllable product morphology, good dispersibility, strong fluorescence, and high color purity. 3 :Eu 3+ Preparation method of luminescent material

Method used

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  • Method for preparing InBO3:Eu&lt;3+&gt; luminescent material by adopting boric acid melting process
  • Method for preparing InBO3:Eu&lt;3+&gt; luminescent material by adopting boric acid melting process
  • Method for preparing InBO3:Eu&lt;3+&gt; luminescent material by adopting boric acid melting process

Examples

Experimental program
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Effect test

Embodiment 1

[0026] 0.097g (0.35mmol) indium oxide, 0.33g (5.25mmol) boric acid, 0.0037g (0.0105mmol) Eu 2 o 3 , 0.63mL (35mmol) H 2 O mixed evenly, the resulting mixture was transferred to a stainless steel autoclave lined with polytetrafluoroethylene, and reacted at 220°C for 72 hours. Dry in oven for 24 hours to obtain spherical InBO 3 :Eu 3+ Luminescent material.

[0027] RigakuD / MAX-IIIC X-ray powder diffractometer (working conditions: Cu target Ka line, graphite filter, tube voltage 40kV, current 30mA, step size 0.02° / s, scan range: 10°~70°), Quanta200 type X-ray energy dispersive spectrometer, Quanta200 type scanning electron microscope, F-7000 type fluorescence spectrophotometer (excitation slit width and emission slit width are all 0.5 and 0.5nm. Voltage is 500V, excitation wavelength is λex= 237nm) to characterize the obtained luminescent material, the results are shown in Figure 1~4 . Depend on figure 1 It can be seen that the obtained luminescent material contains In, ...

Embodiment 2

[0029] 0.097g (0.34mmol) indium oxide, 0.35g (5.13mmol) boron oxide, 0.0060g (0.017mmol) Eu 2 o 3 , 0.70mL (39mmol) H 2 O mixed evenly, the resulting mixture was transferred to a stainless steel autoclave lined with polytetrafluoroethylene, and reacted at 240°C for 72 hours. Dry in oven for 24 hours to obtain spherical InBO 3 :Eu 3+ Luminescent material (see Figure 5 ), whose luminous intensities at wavelengths of 591nm and 613nm are 2536au and 358au, respectively.

Embodiment 3

[0031] 0.21g (0.70mmol) indium nitrate, 0.65g (10.5mmol) boric acid, 0.0074g (0.021mmol) Eu 2 o 3 , 1mL (56mmol) H 2 O mixed evenly, the resulting mixture was transferred to a polytetrafluoroethylene-lined stainless steel autoclave, and reacted at 200°C for 60 hours. Dry in oven for 24 hours to obtain spherical InBO 3 :Eu 3+ Luminescent material (see Figure 6 ), whose luminous intensities at wavelengths of 591 and 613nm are 1017au and 1326au, respectively.

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Abstract

The invention discloses a method for preparing an InBO3:Eu<3+> luminescent material by adopting a boric acid melting process. The method adopts indium nitrate or indium oxide as an indium source and boric acid or boron oxide as a boron source, and a boric acid melting reaction process is adopted for preparing spherical and flower-shaped InBO3:Eu<3+> luminescent materials with different morphologies. The method disclosed by the invention is simple, raw materials are available, reaction conditions are mild, and the prepared InBO3:Eu<3+> luminescent material has high purity, good dispersibility, diversified morphologies and relatively high luminous intensity and can be applied to different fields of display imaging, light sources, medicines and the like.

Description

technical field [0001] The invention belongs to the technical field of luminescent materials, and in particular relates to an InBO with high luminous intensity prepared by a boric acid melting method 3 :Eu 3+ Methods for luminescent materials. 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] Common borate substrates include: rare earth metal borates, alkaline earth metal borates, rare earth and alkaline earth metal composite borates, and binary rare earth metal borate sub...

Claims

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Application Information

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IPC IPC(8): C09K11/63
CPCC09K11/774
Inventor 刘志宏丁文
Owner SHAANXI NORMAL UNIV
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