Aluminate red luminescent material and preparation process thereof

A red light-emitting, aluminate technology, applied in the direction of light-emitting materials, chemical instruments and methods, can solve the problems of complex preparation process, high product cost, application limitations, etc., to achieve good light-emitting performance, fast reaction speed and simple method. Effect

Inactive Publication Date: 2007-07-18
CHENGDU UNIVERSITY OF TECHNOLOGY
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above two patents are only for Y 2 o 3 An Extension of Matrix Red Luminescent Materials
Due to its complicated preparation process and the Y used 2 o 3 The large quantity leads to high product cost and limits its application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aluminate red luminescent material and preparation process thereof
  • Aluminate red luminescent material and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The chemical composition expression of aluminate red luminescent material is Mg 0.7 Ca 0.3 Al 2 o 4 :Eu 0.01 .

[0016] The preparation method is as follows:

[0017] 1) Take each nitrate by weight as follows:

[0018] Raw material Moles Weight (g) Molecular weight

[0019] Magnesium nitrate Mg(NO 3 ) 2 ·6H 2 O 0.7 178.1 254.41

[0020] Calcium nitrate Ca(NO 3 ) 2 4H 2 O 0.3 70.8 236.15

[0021] Aluminum nitrate Al(NO 3 ) 3 9H 2 O 2 750.3 375.13

[0022] Europium nitrate Eu(NO 3 ) 3 0.01 3.4 337.97

[0023] 2) Add 300 grams of urea to the raw material described in 1), and then add 650 grams of water, and fully stir at a temperature of 60° C. to obtain a precursor.

[0024] 3) Reacting the precursor obtained in 2) at a temperature of 500° C. for 30 minutes to obtain a reaction product.

[0025] 4) The reaction product obtained in 3) is taken out and cooled to room temperature, sieved with a 200-mesh sieve, and the sieve is taken to obtain th...

Embodiment 2

[0027] The chemical composition expression of aluminate red luminescent material is Mg 0.9 Ca 0.1 Al 2 o 4 :Eu 0.01 Dy 0.01 .

[0028] The preparation method is as follows:

[0029] 1) Take each nitrate by weight as follows:

[0030] Raw material Moles Weight (g) Molecular weight

[0031] Magnesium nitrate Mg(NO 3 ) 2 ·6H 2 O 0.9 229.0 254.41

[0032] Calcium nitrate Ca(NO 3 ) 2 4H 2 O 0.1 23.6 236.15

[0033] Aluminum nitrate Al(NO 3 ) 3 9H 2 O 2 750.3 375.13

[0034] Europium nitrate Eu(NO 3 ) 3 0.01 3.4 337.97

[0035] Dysprosium nitrate Dy(NO 3 ) 3 0.01 3.5 348.51

[0036] 2) Add 500 grams of urea to the raw material of 1), and then add 1500 grams of water, and stir thoroughly at a temperature of 50° C. to obtain a precursor.

[0037] 3) Reacting the precursor obtained in 2) at a temperature of 600° C. for 20 minutes to obtain a reaction product.

[0038] 4) The reaction product obtained in 3) is taken out and cooled to room te...

Embodiment 3

[0040] The chemical composition expression of aluminate red luminescent material is Mg 0.8 Ca 0.2 Al 2 o 4 :Eu 0.01 Ce 0.005 .

[0041] The preparation method is as follows:

[0042] 1) Take each nitrate by weight as follows:

[0043] Raw material Moles Weight (g) Molecular weight

[0044] Magnesium nitrate Mg(NO 3 ) 2 ·6H 2 O 0.8 203.5 254.41

[0045] Calcium nitrate Ca(NO 3 ) 2 4H 2O 0.2 47.2 236.15

[0046] Aluminum nitrate Al(NO 3 ) 3 9H 2 O 2 750.3 375.13

[0047] Europium nitrate Eu(NO 3 ) 3 0.01 3.4 337.97

[0048] Cerium nitrate Ce(NO 3 ) 2 ·6H 2 O 0.005 1.9 372.13

[0049] 2) Add 600 grams of urea to the raw material of 1), and then add 1500 grams of water, and stir thoroughly at a temperature of 70° C. to obtain a precursor.

[0050] 3) Reacting the precursor obtained in 2) at a temperature of 700° C. for 10 minutes to obtain a reaction product.

[0051] 4) The reaction product obtained in 3) is taken out and cooled to room temperatu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
sizeaaaaaaaaaa
Login to view more

Abstract

The present invention provides one kind of red light emitting aluminate material and its preparation process. The red light emitting aluminate material has chemical formula of MgxCa1-xAl2O4:Ry, where, x as content of Mg is 0.7-0.9, R is at least one of RE elements Eu, Dy, Nd, Ce and Ho, and y as content of RE element is 0.01-0.04. It is prepared through mixing the materials, assistant and water; heating the mixture in a high temperature furnace to react; cooling and grading. It has high light emitting performance and may be used widely in electronics, information treatment, energy source and other fields.

Description

technical field [0001] The invention relates to an inorganic rare earth luminescent material and a preparation method thereof, in particular to an aluminate red luminescent material and a preparation method thereof. Background technique [0002] In recent years, rare earth luminescent materials with stable physical and chemical properties and no pollution have become a new direction for the development of new luminescent materials. Although rare earth luminescent materials are rich in luminescent colors, there are fewer varieties of rare earth red luminescent materials, mainly Y 2 o 3 system-based. For example, Chinese patent CN1453330 discloses a red long-time luminescent material containing rare earth oxygen group compound and its preparation method. The structural formula of the material is R x o 2 L: R'y, Mz, wherein, R is at least one of Y, Gd, Lu, La and Yb; L is S or O; R' is Eu, Dy, Pr, Tb, Sm, Ce, Nd, At least one of Ho, Er and Tm; M is at least one of Mg, Ti, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/80
Inventor 邱克辉李峻峰张佩聪邓春林
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap