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Preparation method of europium-doped aluminum phosphate mesoporous glass

An aluminum phosphate mesoporous and glass technology, applied in the field of luminescent glass, can solve the problems of poor composition repeatability, many impurities in porous glass, and inability to accurately control the bound state of rare earth ions, and achieve good mesoporous properties and low refractive index. , the effect of excellent chemical stability

Active Publication Date: 2013-07-10
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Porous glass prepared by traditional phase-separation method has many impurities and poor repeatability of composition, so it is impossible to accurately control the binding state of rare earth ions in glass micropores

Method used

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  • Preparation method of europium-doped aluminum phosphate mesoporous glass
  • Preparation method of europium-doped aluminum phosphate mesoporous glass
  • Preparation method of europium-doped aluminum phosphate mesoporous glass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Use an analytical balance to weigh 0.0045g of analytically pure europium nitrate hexahydrate, dissolve it in 10ml of distilled water, and configure it to contain 0.001mol / L Eu 3+ impregnation solution. Immerse the aluminum phosphate glass in the immersion solution for 30 minutes, then take out the glass, put the dried sample in a corundum crucible for heat treatment in a muffle furnace, and raise the temperature from room temperature to 800°C at a rate of 0.5°C / min in an air atmosphere. And keep it warm at 800°C for 6 hours, then cool the glass to room temperature with the furnace and take it out to get europium-doped mesoporous aluminophosphate glass. figure 1 The emission spectrum of the glass prepared in Example 1 under the excitation of excitation light with a wavelength of 395 nm. Figure 7 The luminous chromaticity of the glass obtained in this embodiment is marked in the chromaticity diagram, and its color coordinates are (0.15, 0.14).

Embodiment 2

[0032] Example 2: Use an analytical balance to weigh 0.0352 g of analytically pure europium oxide and dissolve it in 1 mol / L dilute hydrochloric acid to prepare 10 ml containing 0.02 mol / L Eu 3+ impregnation solution. Immerse the aluminum phosphate glass in the immersion solution for 30 minutes, then take out the glass, put the dried sample into a muffle furnace for heat treatment with a corundum crucible, and heat it from room temperature to 400°C at a heating rate of 0.5°C / min under a nitrogen atmosphere. And keep it at 400°C for 5 hours, cool the glass to room temperature with the furnace and take it out to get europium-doped mesoporous aluminophosphate glass. figure 2 The emission spectrum of the glass prepared in Example 2 under the excitation of excitation light with a wavelength of 395 nm. Figure 7 The luminous chromaticity of the glass obtained in this embodiment is marked in the chromaticity diagram, and its color coordinates are (0.20, 0.17).

Embodiment 3

[0033] Example 3: Use an analytical balance to weigh 0.0352 g of analytically pure europium oxide dissolved in 1 mol / L dilute nitric acid, and prepare 10 ml containing 0.02 mol / L Eu 3+ impregnation solution. Immerse the aluminum phosphate glass in the immersion solution for 3 hours, then take out the glass, put the dried sample in a corundum crucible for heat treatment in a muffle furnace, and heat it from room temperature to 800°C at a heating rate of 5°C / min in an air atmosphere. And keep it at 800°C for 5 hours, cool the glass to room temperature with the furnace and take it out to get europium-doped mesoporous aluminophosphate glass. image 3 The emission spectrum of the glass prepared for Example 3 under the excitation of excitation light with a wavelength of 395 nm. Figure 7 The luminescence chromaticity of the glass obtained in this embodiment is marked in the chromaticity diagram, and its color coordinates are (0.34, 0.22).

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Abstract

The invention provides a preparation method of a europium-doped aluminum phosphate mesoporous glass. At least one selected from Eu<3+> and Eu<2+> is distributed in the europium-doped aluminum phosphate mesoporous glass; and the preparation method comprises the following steps of: preparing a dipping solution containing Eu<3+>, putting a piece of mesoporous aluminum phosphate glass prepared by a sol-gel method into the dipping solution, dipping for more than 5 minutes, taking out and forming the europium-doped aluminum phosphate mesoporous glass by thermal treatment in a muffle furnace. The tests prove that the europium-doped aluminum phosphate mesoporous glass can emit blue light, red light or blue-red mixed light under the pumping of ultraviolet light.

Description

technical field [0001] The invention relates to luminescent glass, in particular to a preparation method of europium-doped aluminum phosphate mesoporous glass. Background technique [0002] The development of laser and optical devices has put forward higher requirements for rare earth doped glass materials. Due to the uniform distribution of pores, the porous glass has a large specific surface area and high surface activity, and the rare earth ions can be fully dispersed in the glass. It helps to increase the doping concentration of rare earth in glass. Porous glass prepared by traditional phase-separation method has many impurities and poor repeatability of composition, so it is impossible to accurately control the binding state of rare earth ions in glass micropores. The mesoporous glass prepared by the sol-gel method realizes the fully tunable glass composition due to its pure chemical composition. Compared with the neutral groups of silica tetrahedrons in silica glass...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C4/12C03C17/22C03C3/17
Inventor 张龙何进李日红王焱
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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