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Calcium carbonate-based fluorescent material and preparation method of material

A fluorescent material, calcium carbonate-based technology, applied in the field of fluorescent materials, can solve the problems of weak luminescence of rare earth ions, etc., and achieve the effect of simple and easy method, high yield, and saving rare earth resources

Active Publication Date: 2018-01-19
河南索顿新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the f-f transition of rare earth ions is a forbidden transition, the light in this region is rarely absorbed in the visible and ultraviolet regions, so the luminescence of a single rare earth ion is relatively weak

Method used

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  • Calcium carbonate-based fluorescent material and preparation method of material
  • Calcium carbonate-based fluorescent material and preparation method of material
  • Calcium carbonate-based fluorescent material and preparation method of material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] (1) Weigh 0.3000g of the calcium carbonate powder prepared in (1) and place it in a 50mL small beaker A, add 30mL of absolute ethanol; then weigh 1.5mmol 2-chlorobenzoic acid and 0.5mmol prepared in (2) respectively Place terbium chloride hexahydrate in a 50mL small beaker B, add 10mL of absolute ethanol, and ultrasonically vibrate the two small beakers A and B for 30 minutes to make them evenly dispersed;

[0093] (2) Control the temperature of the digital display heat-collecting magnetic stirrer to 18°C, then place the solutions in the uniformly heated A and B beakers in the three-necked flask for reaction, add magnets to stir, and make it fully react. When the reaction time reaches One hour, stop heating and stirring,

[0094] (3) Take out the three-necked flask and wipe it clean, then use a Buchner funnel to suction filter the liquid in the flask, repeat 2 to 3 times to clarify the filtrate, remove the filter paper, dry it in a vacuum drying oven at 80°C for 12 hour...

Embodiment 2

[0096] (1) Weigh 0.1000g of calcium carbonate powder prepared in (1) and place it in a 50mL small beaker A, add 30mL of absolute ethanol; then weigh 1.5mmol 2-chlorobenzoic acid and 0.5mmol prepared in (2) respectively Place terbium chloride hexahydrate in a 50mL small beaker B, add 10mL of absolute ethanol, and ultrasonically vibrate the two small beakers A and B for 30 minutes to make them evenly dispersed;

[0097] (2) Control the temperature of the digital display heat-collecting magnetic stirrer to 28°C, then place the solutions in the evenly heated A and B beakers in the three-necked flask for reaction, add magnets to stir, and make it fully react. When the reaction time reaches One hour, stop heating and stirring,

[0098] (3) Take out the three-necked flask and wipe it clean, then use a Buchner funnel to suction filter the liquid in the flask, repeat 2 to 3 times to clarify the filtrate, remove the filter paper, dry it in a vacuum drying oven at 80°C for 12 hours, take...

Embodiment 3

[0100] (1) Weigh 1.0g of the calcium carbonate powder prepared in (1) and place it in a 50mL small beaker A, add 30mL of absolute ethanol; then weigh 1.5mmol 2-chlorobenzoic acid and 0.5mmol prepared in (2) respectively Place terbium chloride hexahydrate in a 50mL small beaker B, add 10mL of absolute ethanol, and ultrasonically vibrate the two small beakers A and B for 30 minutes to make them evenly dispersed;

[0101] (2) Control the temperature of the digital display heat-collecting magnetic stirrer to 38°C, then place the solutions in the evenly heated A and B beakers in the three-necked flask for reaction, add magnets to stir, and make it fully react. When the reaction time reaches One hour, stop heating and stirring,

[0102] (3) Take out the three-necked flask and wipe it clean, then use a Buchner funnel to suction filter the liquid in the flask, repeat 2 to 3 times to clarify the filtrate, remove the filter paper, dry it in a vacuum drying oven at 80°C for 12 hours, tak...

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Abstract

The invention provides a calcium carbonate-based fluorescent material. The calcium carbonate-based fluorescent material takes solid calcium carbonate powder as a matrix, and a 2-chlorobenzoic acid terbium complex is attached to and / or is combined with the surface of the matrix. The fluorescence intensity is large; the fluorescence lifetime is long; and under the conditions of a same luminous intensity and luminous life, the use of rare earth elements is greatly reduced, and resources are saved. The invention also provides a method for preparing the calcium carbonate-based fluorescent material.The method is easy to operate, the loss of the rare earth elements can be effectively avoided, and the yield of the calcium carbonate-based fluorescent material is high.

Description

technical field [0001] The invention relates to the field of fluorescent materials, in particular to a calcium carbonate-based fluorescent material and a preparation method thereof. Background technique [0002] Rare earth materials are known as new materials in the 21st century. Rare earth complexes are a kind of unique luminescent materials, which have the characteristics of strong spectral line intensity, long fluorescence lifetime, narrow spectral band, good spectral monochromaticity, and bright fluorescence. They are used in fluorescent probes, luminescent materials, life sciences and other technologies The field has a relatively broad application prospect. High-efficiency rare earth fluorescent materials and new synthesis technologies will have a major impact on future high-tech technologies such as flat panel displays, new fluorescent lamps, and optoelectronic information technology. In recent research, the high-efficiency light-storing rare earth luminescent materi...

Claims

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Application Information

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IPC IPC(8): C09K11/06C09K11/02
Inventor 陶栋梁
Owner 河南索顿新材料有限公司
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