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Novel terbium complex composite fluorescent material and production method thereof

A technology of composite fluorescence and terbium complexes, applied in the field of fluorescent materials, can solve the problems of difficulty in recycling rare earth complexes, limited application of rare earth complexes, etc.

Inactive Publication Date: 2019-08-20
FUYANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, because rare earths have gradually been used as strategic resources, more and more attention has been paid to them. Therefore, the price of rare earths has continued to rise, and it is difficult to recycle rare earth complexes after use, which has led to great limitations in the application of rare earth complexes in many aspects.

Method used

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  • Novel terbium complex composite fluorescent material and production method thereof
  • Novel terbium complex composite fluorescent material and production method thereof
  • Novel terbium complex composite fluorescent material and production method thereof

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preparation example Construction

[0032] In a second aspect, the present invention provides a method for preparing a novel terbium complex composite fluorescent material, comprising the following steps:

[0033] Step 1: preparing terbium-containing hydrate;

[0034] Step 2: mixing terbium-containing hydrate with organic acid;

[0035] Step 3: adding the matrix substance to the mixed solution in step 2;

[0036] Step 4: react under set conditions;

[0037] Step 5: post-processing to obtain the final product.

[0038] Step 1, preparing terbium-containing hydrate;

[0039] Step 1 includes the following sub-steps:

[0040] Substep 1: dissolving terbium oxide in a solvent and stirring;

[0041] Sub-step 2: heating, adding concentrated acid and oxidizing agent dropwise;

[0042] Sub-step 3: remove the solvent, filter, and dry to obtain terbium-containing hydrate;

[0043] Described terbium-containing hydrate is terbium chloride hydrate; terbium chloride (TbCl 3 ) is prone to deliquescence and needs to be sto...

Embodiment 1

[0086] Quickly weigh 0.3734g (1mmol) of terbium chloride and 0.4697g (3mmol) of o-chlorobenzoic acid with an analytical balance and pour them into a 250mL three-hole round-bottomed flask equipped with a spherical reflux condenser. Stopper the remaining two holes, measure 10mL of absolute ethanol with a graduated cylinder and pour it into a three-hole round bottom flask, place it on a constant temperature heating magnetic stirrer, control the temperature of the solution in the round bottom flask to 80°C, heat and stir until the drug dissolves;

[0087] Weigh 2.5033g of anhydrous calcium carbonate CaCO with an analytical balance 3 In a 50mL beaker, add 30mL of absolute ethanol, put it into an ultrasonic cleaner, and oscillate ultrasonically for 10 minutes under the condition of constant stirring with a glass rod;

[0088] Ultrasonic shaken CaCO 3 The solution was quickly poured into the above-mentioned three-hole round-bottomed flask, allowed to heat, stir and reflux together w...

Embodiment 2～7

[0091] The difference between embodiment 2~7 and embodiment 1 is that used calcium carbonate CaCO 3 The quality is different, and the quality of calcium carbonate used in embodiments 2~7 is respectively 5.0g, 7.5g, 10.0g, 12.5g, 15.0g, 17.5g.

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Abstract

The invention provides a novel terbium complex composite fluorescent material and a production method thereof. The production method comprises the steps of using tetraterbium heptaoxide for generatingterbium chloride under the action of hydrochloric acid and hydrogen peroxide, and then subjecting the terbium chloride, o-chlorobenzoic acid and calcium carbonate to reaction to produce the novel terbium complex composite fluorescent material. Moreover, through analysis experiments of ultraviolet analysis, infrared analysis, fluorescence analysis, thermogravimetry-differential thermal analysis, laser particle size analysis, XRD and the like, the performance of the produced composite fluorescent material is characterized. According to the provided terbium complex composite fluorescent material, not only is the cost of a rare earth complex luminescent material reduced, but also the produced luminescent material is environmentally friendly and good in thermal stability, and is a good high-temperature-resistant luminescent material.

Description

technical field [0001] The invention relates to the field of fluorescent materials, in particular to a terbium complex composite fluorescent material and a preparation method thereof. Background technique [0002] Rare earth elements refer to group IIIB in the periodic table of elements, 21st element scandium Sc, 39th element yttrium Y and 57-71 lanthanum La, cerium Ce, praseodymium Pr, neodymium Nd, promethium Pm, samarium Sm, europium Eu, gadolinium Gd , terbium Tb, dysprosium Dy, holmium Ho, erbium Er, thulium Tm, ytterbium Yb, lutetium Lu, a total of 17 elements. Containing rare earth elements as matrix components, activators, co-activators or dopants is a general term for rare earth fluorescent materials. They play a very important role in the research and application of fluorescent materials. Rare earth luminescent materials refer to rare earth functional materials that utilize the unique electron layer structure of rare earth elements and adopt different excitation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06C07F5/00
CPCC09K11/06C07F5/00C09K2211/182
Inventor 陶栋梁金凤苗宁崔玉民张宏李慧泉姜广鹏王永忠张琳陈继堂
Owner FUYANG NORMAL UNIVERSITY
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