CN1097208A - Noctilucent material containing europium and preparation method thereof - Google Patents
Noctilucent material containing europium and preparation method thereof Download PDFInfo
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- CN1097208A CN1097208A CN 94100482 CN94100482A CN1097208A CN 1097208 A CN1097208 A CN 1097208A CN 94100482 CN94100482 CN 94100482 CN 94100482 A CN94100482 A CN 94100482A CN 1097208 A CN1097208 A CN 1097208A
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- europium
- noctilucent material
- material containing
- oxide compound
- compound
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Abstract
A kind of Noctilucent material containing europium, its chemical constitution are m (Sr
1-xEux) OnAl
2O
3ABaCl
2BCaO, with the oxide compound of strontium, europium, aluminium, calcium or by adding the compound that heat energy produces above-mentioned oxide compound, and bariumchloride in proportion porphyrize mix, 800 ℃～1100 ℃ following calcinations 1-4 hours, under the gac reducing atmosphere under 800 ℃～1100 ℃, reduce and get, equipment is simple, easy-to-operate, and cost is low, and the gained noctilucent material can be widely used in making various dark luminescent materials.
Description
The invention belongs to a kind of noctilucent material and production method thereof that contains europium.
Early stage sulfide-based noctilucent material, unstable chemcial property easily decomposes, and fluorescent lifetime is shorter, and practicality is relatively poor, and it is m(sr that the patent application document of Fudan University (CN91107331.X) has proposed a kind of structural formula
1-XEu
X) 0nAL
2O
3The long-decay phosphor material of (wherein 1≤m≤5,1≤n≤8,0.001≤X≤0.1,0.005≤Y≤0.35) and preparation method thereof.This noctilucent material performance that contains europium is more stable, and luminous time of persistence is longer, but the luminosity attenuation ratio is very fast, and need all to burn and under H2 and N2 atmosphere, reduce in relative superiority or inferiority, the equipment more complicated, operation is difficulty relatively, set off an explosion easily, the products production cost is also than higher.
Noctilucent material containing europium of the object of the present invention is to provide that a kind of illumination effect is good, effective storage life is long and safety thereof, simple and convenient preparation method.
The europium luminescent material that contains of the present invention contains strontium, europium oxide compound and aluminum oxide, it is characterized in that containing in addition bariumchloride and calcium oxide, and its chemical constitution is:
0.05≤m≤3,0.05≤n≤3,0.0001≤a≤0.05,0.001≤b≤0.008 wherein,
0.01≤X≤0.3，
The present invention by adding the oxide compound of bariumchloride and calcium, has improved noctilucent material illumination effect and staying quality greatly on the basis of original strontium, europium, aluminum oxide,
The europium luminescent material better chemical composition that contains of the present invention is:
0.1≤m≤2,0.08≤n≤2,0.0005≤a≤0.03,0.0015≤b≤0.05,0.04≤X≤0.15 wherein
The preparation method of Noctilucent material containing europium of the present invention may further comprise the steps successively:
1. respectively with the oxide compound of strontium, europium, aluminium, calcium or through adding the compound that heat energy produces above-mentioned oxide compound, and bariumchloride grinds in proportion, uniform mixing,
2, said mixture at 800 ℃～1100 ℃ following calcination 1-4 hours, is cooled to normal temperature, to pulverize, reduction at high temperature again is characterized in that reduction of the present invention is that constant temperature was realized in 1～6 hour under the gac reducing atmosphere under 800 ℃～1100 ℃.
Constitute the raw material that contains the europium luminescent material of the present invention and preferably select Strontium carbonate powder, aluminum oxide, lime carbonate and bariumchloride respectively.
The present invention compared with prior art, owing to adopt gac to replace special atmospheres such as H2 and N2 to reduce, need not special vaccum-pumping equipment, and can calcination and reduction under lower temperature, can use common thermally resistant container, thereby significantly reduced facility investment, effectively reduce production costs, and operational safety, convenience.
Embodiment one.
Take by weighing SrCO
3289 grams, EuO 14.8 grams, BaCL
210.4 gram AL
2O
3202 grams, CaCO
310 grams are put into 1000 milliliters of corundum crucibles after mixing, grinding, and calcination is 3 hours in 1100 ℃ of muffle furnaces, taking-up is chilled to room temperature, pulverizes 1000 ℃ of reduction calcinations 2 hours down in the reducing atmosphere of gac again, take out cooling pulverize the noctilucent material of green light, record its chemical constitution and be:
2（Sr
0.96EuO.04）0·2AL
2O
3·0.025Bacl
2·0.05CaO
This noctilucent material is through can be luminous continuously more than 10 hours at the dark place behind light or the sun exposure.
Embodiment two.
Take by weighing SrCO
313.29 gram, EuO1.76 gram, Bacl
20.34 gram, AL
2O
38.15 gram, CaCO
30.37 gram is put into 100 milliliters of corundum crucibles, 1000 ℃ of following calcinations 3.5 hours behind the mixed grinding, taking-up is chilled to room temperature, pulverizes 950 ℃ of reduction calcinations 2.5 hours down in the gac reducing atmosphere again, take out cooling, pulverizing promptly gets the noctilucent material of green light, records chemical constitution and is:
0.1（Sr
0.9Eu
0.1）0·0.08AL
2O
3·0.0008Bacl
2·0.0018CaO
This noctilucent material is through in the dark also can be luminous more than 10 hours behind light or the sun exposure.
Above-mentioned two kinds of noctilucent materials can mix with other transparent material, produce various luminous noctilucence product in dark place such as the noctilucence glass etc. of needing.
Claims (3)
1, a kind of Noctilucent material containing europium contains strontium, europium oxide compound and aluminum oxide, it is characterized in that containing bariumchloride, calcium oxide again in addition, and its chemical constitution is:
0.05≤m≤3,0.05≤n≤3,0.0001≤a≤0.05,0.001≤b≤0.08,0.01≤X≤0.3 wherein.
2, Noctilucent material containing europium as claimed in claim 1 is characterized in that:
0.1≤m≤2,0.08≤n≤2,0.0005≤a≤0.03,0.0015≤b≤0.05,0.04≤X≤0.15 wherein
3, a kind of preparation method of Noctilucent material containing europium as claimed in claim 1 or 2 may further comprise the steps successively:
1) respectively with the oxide compound of strontium, europium, aluminium, calcium or through adding the compound that heat energy produces above-mentioned oxide compound, and bariumchloride grinds in proportion, uniform mixing,
2) with said mixture at 800 ℃～1100 ℃ following calcination 1-4 hours, be cooled to normal temperature, pulverize, reduction at high temperature again,
It is characterized in that reduction of the present invention is that constant temperature was realized in 1～6 hour under the gac reducing atmosphere under 800 ℃～1100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94100482 CN1097208A (en) | 1994-01-20 | 1994-01-20 | Noctilucent material containing europium and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94100482 CN1097208A (en) | 1994-01-20 | 1994-01-20 | Noctilucent material containing europium and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1097208A true CN1097208A (en) | 1995-01-11 |
Family
ID=5029684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94100482 Pending CN1097208A (en) | 1994-01-20 | 1994-01-20 | Noctilucent material containing europium and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1097208A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084364C (en) * | 1997-03-17 | 2002-05-08 | 姜祖斌 | Thermosetting luminescent powder coating material and production thereof |
-
1994
- 1994-01-20 CN CN 94100482 patent/CN1097208A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084364C (en) * | 1997-03-17 | 2002-05-08 | 姜祖斌 | Thermosetting luminescent powder coating material and production thereof |
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