A kind of preparation method of strontium aluminate long afterglow luminescent material
A technology of luminescent materials and strontium length, applied in luminescent materials, chemical instruments and methods, etc., can solve problems such as easy hydrolysis, coarse particles, poor compatibility, etc., achieve short production cycle, uniform particle size, and improve the effect of dispersion
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0025] Example 1: A preparation method of strontium aluminate long afterglow luminescent material, comprising the following steps:
[0026] (1) Weigh 18g of aluminum nitrate nonahydrate and 5g of anhydrous strontium nitrate, dissolve them in 100 ml of distilled water, add 0.3g of boric acid, add 46g of urea as an expanding agent, and mix evenly.
[0027] (2) Weigh 0.05g of europium oxide and 0.05g of dysprosium oxide, add 0.1M nitric acid to the mixture to dissolve, pH=5-6, keep warm at 60-80°C until the mixture is completely dissolved.
[0028] (3) Mix the above two solutions and add 1.1g nano-TiO 2 , aged at 60-80°C for 10 min.
[0029] (4) Put the mixed solution into a crucible and put it in a muffle furnace at 400°C. Raise the temperature from 400°C to 600°C at a heating rate of 5°C / min, hold for 20 minutes, then raise the temperature to 900°C at a heating rate of 10°C / min, and hold for 20 minutes. Cool down to room temperature and sample. That is, the strontium alumi...
Embodiment 2
[0031] Example 2: A preparation method of strontium aluminate long afterglow luminescent material, comprising the following steps:
[0032] (1) Weigh 18g of aluminum nitrate nonahydrate and 5g of anhydrous strontium nitrate, dissolve in 20 ml of distilled water, add 0.3g of boric acid, add 2.3g of oxalic acid as an expanding agent, and mix evenly.
[0033] (2) Weigh 0.05g of europium oxide and 0.05g of dysprosium oxide, add 0.1M nitric acid to the mixture to dissolve, pH=5-6, keep warm at 60-80°C until the mixture is completely dissolved.
[0034] (3) Mix the above two solutions and add 0.05g nano-SiO 2 , aged at 60-80°C for 5h.
[0035] (4) Put the mixed solution into a crucible and put it in a muffle furnace at 350°C. Raise the temperature from 350°C to 600°C at a heating rate of 5°C / min, hold for 20 minutes, then raise the temperature to 1500°C at a heating rate of 10°C / min, and hold for 3 hours. Cool down to room temperature and sample. That is, the strontium alumina...
Embodiment 3
[0037] Example 3: A preparation method of strontium aluminate long afterglow luminescent material, comprising the following steps:
[0038] (1) Weigh 18g of aluminum nitrate nonahydrate and 5g of anhydrous strontium nitrate, dissolve in 100ml of distilled water, add 0.3g of boric acid, add 10g of oxalic acid and 10g of citric acid as swelling agents, and mix evenly.
[0039] (2) Weigh 0.05g of europium oxide and 0.05g of dysprosium oxide, add 0.1M nitric acid to the mixture to dissolve, pH=5-6, keep warm at 60-80°C.
[0040] (3) Mix the above two solutions and add 0.2g nano-SiO 2 and 0.6g nano-TiO 2 , aged at 60-80°C for 2h.
[0041] (4) Put the mixed solution into a crucible and put it into a muffle furnace at 450°C. Raise the temperature from 450°C to 500°C at a heating rate of 5°C / min, hold for 20 minutes, then raise the temperature to 1500°C at a heating rate of 10°C / min, and hold for 1 hour. Cool down to room temperature and sample. That is, the strontium aluminate l...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More