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Rare earth composite fluorescent material using inorganic salt as matrix, and preparation method thereof

A fluorescent material and rare earth composite technology, applied in the field of fluorescent materials, can solve problems such as poor light and thermal stability, difficult recovery of rare earth complexes, and application limitations of rare earth complexes

Pending Publication Date: 2020-01-31
FUYANG NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although rare earth luminescent materials have an irreplaceable position in some fields, the cost of fluorescent materials is high, and its price is dozens of times that of ordinary metals, and its light and thermal stability are slightly poor, and rare earth complexes are recycled after use. Difficulty, resulting in the application of rare earth complexes in many aspects has been greatly limited

Method used

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  • Rare earth composite fluorescent material using inorganic salt as matrix, and preparation method thereof
  • Rare earth composite fluorescent material using inorganic salt as matrix, and preparation method thereof
  • Rare earth composite fluorescent material using inorganic salt as matrix, and preparation method thereof

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Effect test

preparation example Construction

[0092] (1) The preparation method of the composite fluorescent material is simple and easy;

[0093] (2) The composite fluorescent material has high fluorescence excitation intensity, high fluorescence emission intensity, high quantum yield, and long fluorescence lifetime;

[0094] (3) The solvent used in the method for preparing the composite fluorescent material of the present invention is more environmentally friendly, and the obtained rare earth composite fluorescent material is easy to recycle and has higher social benefits;

[0095] (4) The sodium bicarbonate raw material of the present invention has a wide range of sources, is easy to obtain, and has low cost. The cost of the composite fluorescent material is low, and it is expected to expand the application range of the rare earth luminescent material.

Embodiment 1

[0098] Weigh 0.2781g of TPPO (1mmol), 0.3339g of TTA (1.5mmol) and 0.1294g of europium chloride hexahydrate respectively into the reaction flask, then add 20mL of absolute ethanol, stir, and ultrasonically vibrate for 30min to obtain a solution ;

[0099] Weigh 1.0000g of dried sodium bicarbonate into a 50ml beaker, add 10ml of absolute ethanol, put it into an ultrasonic cleaner, seal the mouth of the beaker with plastic wrap, and perform ultrasonic vibration for 30min; and put the pretreated sodium bicarbonate solution Add dropwise to the above reaction bottle, start stirring at the same time, dropwise add in 10min, then heat to reflux reaction, react for 2h;

[0100] After the reaction was completed, the temperature was lowered to 50°C, filtered, and the obtained filter cake was dried in an oven at 80°C for 2 hours to obtain the product; denoted as C1.

Embodiment 2

[0102]The method used in this embodiment is the same as that in Example 1, except that the consumption of sodium bicarbonate is different, and the consumption of sodium bicarbonate in this embodiment is 2 g; the product obtained is denoted as C2.

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Abstract

The invention provides a rare earth composite fluorescent material using an inorganic salt as a matrix, and a preparation method thereof, wherein the europium coordination compound composite fluorescent material is prepared by using europium ions as a luminous body, using methyl benzotriazole (TTA) and triphenyl phosphine oxide (TPPO) as organic ligands and using an inorganic salt sodium bicarbonate as a matrix through a reaction under set conditions, and is characterized. According to the invention, the cost of the luminescent material is reduced, and the prepared material is long in servicelife, high in quantum yield, high in fluorescence intensity and good in fluorescence performance.

Description

technical field [0001] The invention relates to the field of fluorescent materials, in particular to a rare earth europium complex composite fluorescent material with inorganic carbonate as a matrix and a preparation method thereof. Background technique [0002] Rare earth elements (rare earth elements) have a wide range of applications and are known as industrial "gold". Today, rare earth elements have been widely used in electronic equipment, petrochemical, metallurgy, machinery, energy, light industry, environmental protection, agriculture and other fields. Further application of rare earth elements can be used to produce fluorescent materials, rare earth metal hydride battery materials, electric light source materials, permanent magnet materials, hydrogen storage materials, catalytic materials, precision ceramic materials, laser materials, superconducting materials, magnetostrictive materials, magnetostrictive materials Cold materials, magneto-optical storage materials,...

Claims

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Application Information

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IPC IPC(8): C09K11/06C09K11/02
CPCC09K11/06C09K11/025C09K2211/182
Inventor 陶栋梁金凤宋苗苗王永忠姜广鹏陈继堂张琳崔玉民张宏李慧泉
Owner FUYANG NORMAL UNIVERSITY
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