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Luminescent material based on cerium and europium activated aluminosilicate and preparation method and application thereof

A technology of luminescent materials and activators, applied in luminescent materials, chemical instruments and methods, thermometers with physical/chemical changes, etc., can solve problems that need to be further explored, and achieve fast response optical temperature measurement and high-sensitivity optical temperature measurement , the effect of strong luminous brightness

Active Publication Date: 2021-06-22
FOSHAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the inorganic optical temperature measurement materials choose transition metals with d-d transitions, such as Mn 2+ and Cr 3+ etc., or rare earth ions with f-f transitions, such as Pr 3+ and Sm 3+ As active ions, their luminous quantum efficiency and luminous lifetime need to be further explored

Method used

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  • Luminescent material based on cerium and europium activated aluminosilicate and preparation method and application thereof
  • Luminescent material based on cerium and europium activated aluminosilicate and preparation method and application thereof
  • Luminescent material based on cerium and europium activated aluminosilicate and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Ca 8 Mg 3 al 2 Si 7 o 28 The preparation method of matrix, comprises the steps:

[0043] Weigh calcium carbonate (CaCO 3 ) 0.8007g, magnesium oxide (MgO) 0.1209g, silicon dioxide (SiO 2 ) 0.4206g, aluminum oxide (Al 2 o 3 ) 0.1020g and boric acid (H 3 BO 3 ) 0.0450g, put in an agate mortar, add 5-10mL of absolute ethanol, grind for 20min, mix evenly and dry, put it into a corundum crucible, put it in a box furnace, and gradually heat up from room temperature to Calcined at 1260°C in a hot carbon reducing atmosphere (carbon monoxide), and continued to be calcined at a constant temperature for 6 hours, then the sample was naturally cooled and annealed to room temperature in the furnace, and the sample was taken out and ground to obtain the product.

Embodiment 2

[0045] Ca 7.98 Ce 0.01 Na 0.01 Mg 3 al 2 Si 7 o 28 The preparation method of the material: weigh calcium carbonate (CaCO 3 ) 0.7987g, magnesium oxide (MgO) 0.1209g, silicon dioxide (SiO 2 )0.4206 g, aluminum oxide (Al 2 o 3 ) 0.1020g, boric acid (H 3 BO 3 )0.0450g, cerium oxide (CeO 2 )0.0017g and sodium carbonate (Na 2 CO 3 ) 0.0005g, put it in an agate mortar, add 5-10mL of absolute ethanol, grind for 20min, mix well and dry it, put it into a corundum crucible, put it in a box furnace, and gradually heat it up from room temperature to 1260°C, calcined in a hot carbon reducing atmosphere (carbon monoxide), and continued to calcined at a constant temperature for 6 hours, then the sample was naturally cooled and annealed to room temperature in the furnace, and the sample was taken out and ground to obtain the product.

Embodiment 3

[0047] Ca 7.94 Ce 0.03 Na 0.03 Mg 3 al 2 Si 7 o 28 The preparation method of the material: weigh calcium carbonate (CaCO 3 ) 07947g, magnesium oxide (MgO) 0.1209g, silicon dioxide (SiO 2 )0.4206 g, aluminum oxide (Al2 o 3 ) 0.1020g, boric acid (H 3 BO 3 )0.0450g, cerium oxide (CeO 2 ) 0.0052g and sodium carbonate (Na 2 CO 3 ) 0.0016g, put it in an agate mortar, add 5-10mL of absolute ethanol, grind for 20min, mix well and dry it, put it into a corundum crucible, put it in a box furnace, and gradually heat it up from room temperature to 1260°C, calcined in a hot carbon reducing atmosphere (carbon monoxide), and continued to calcined at a constant temperature for 6 hours, then the sample was naturally cooled and annealed to room temperature in the furnace, and the sample was taken out and ground to obtain the product.

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Abstract

The invention relates to the technical field of luminescent materials, and discloses a luminescent material based on cerium and europium activated aluminosilicate and a preparation method and application thereof.The luminescent material takes Ca8Mg3Al2Si7O28 as a matrix, Ce < 3 + > and Eu < 2 + > rare earth ions as activators and sodium salt as a charge compensation agent, and has the characteristic of being adjustable in luminescent color under different doping concentrations, excitation wavelengths and temperatures; the chemical composition formula of the luminescent material is Ca < 8-2x-y > Ce < x > Na < x > Eu < y > Mg < 3 > Al < 2 > Si < 7 > O < 28 >, x is the doping concentration of Ce < 3 + >, and the numerical range is 0 <x <= 0.09, y is the doping concentration of Eu < 2 + >, and the numerical range is 0 <y<= to 0.09. The luminescent material disclosed by the invention has the characteristics of relatively high luminescence brightness, relatively short luminescence service life, adjustable luminescence color and sensitive luminescence to temperature response, and achieves fast-response and high-sensitivity optical temperature measurement effects.

Description

technical field [0001] The invention relates to the technical field of luminescent materials, in particular to a luminescent material based on cerium and europium activated aluminosilicate, a preparation method and an application. Background technique [0002] The conventional temperature measurement method is mainly based on the relationship between the volume, resistance and magnetic properties of the material and temperature to indicate the change of temperature, which has the problems of low sensitivity and long response time. Optical temperature measurement technology uses the fluorescence characteristics of luminescent materials and combines image processing technology, which has the advantages of non-contact, high sensitivity and fast response, and involves chemical production (metallurgy, coal smelting, acid and alkali production, etc.), and microelectronics research, etc.) and medical diagnostics (intracellular heat sensing and cancer treatment, etc.) and other appl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/64G01K11/14
CPCC09K11/7792G01K11/14
Inventor 周容富邓婷婷赵红挺盛杰
Owner FOSHAN UNIVERSITY
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