Rare earth composite fluorescent material using calcium phosphate as matrix, and preparation method thereof

A technology of compound fluorescence and rare earth complexes, applied in the field of fluorescent materials, can solve the problems of difficulty in recycling rare earth complexes, poor light and thermal stability, etc.

Active Publication Date: 2020-02-14
FUYANG NORMAL UNIVERSITY
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Fluorescent materials of rare earth complexes have the advantages of unique molecular structure, photoluminescence mechanism, strong fluorescence and good monochromaticity, and are applied in many fields such as industry, agriculture, biology, etc., but their light and thermal stability are slightly poor. Moreover, in recent years, be

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rare earth composite fluorescent material using calcium phosphate as matrix, and preparation method thereof
  • Rare earth composite fluorescent material using calcium phosphate as matrix, and preparation method thereof
  • Rare earth composite fluorescent material using calcium phosphate as matrix, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0111] (2) The preparation method of the composite fluorescent material is simple and easy to implement;

[0112] (3) The composite fluorescent material prepared by the method of the present invention reduces the amount of rare earth europium and ligands by introducing hydroxyapatite, reduces the cost, and also reduces the possible pollution of the product, is environmentally friendly and efficient, and is expected to expand the use of rare earth luminescent materials Application range.

Example Embodiment

[0114] Example 1

[0115] Weigh 1.0000g of dried hydroxyapatite into a 50ml beaker, add 10ml of absolute ethanol, put it in an ultrasonic cleaner, seal the mouth of the beaker with plastic wrap, and perform ultrasonic vibration for 30 minutes;

[0116] Weigh 0.2781g of TPPO (1mmol), 0.3339g of TTA (1.5mmol) and 0.1294g of europium chloride hexahydrate respectively, add them to the reaction flask, then add 20mL of absolute ethanol, stir, and ultrasonically shake for 30min to obtain a solution ;

[0117] Put the above reaction flask in the heating mantle, turn on the stirring, and connect the reflux device, and then drop the pretreated hydroxyapatite solution into the reaction flask. After 10 minutes of dripping, heat to reflux and react for 2 hours;

[0118] After the reaction is completed, the temperature is lowered to 55°C, filtered, and the obtained filter cake is dried in an oven at a temperature of 100°C for 3 hours to obtain the product; denoted as C1.

Example Embodiment

[0119] Example 2

[0120] The method used in this example is the same as that in Example 1, except that the amount of hydroxyapatite used is different. The amount of hydroxyapatite used in this example is 2g; the obtained product is denoted as C2.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a rare earth composite fluorescent material using calcium phosphate as a matrix, and a preparation method thereof, wherein the composite fluorescent material is prepared by using rare earth ions as a light-emitting body, using alpha-thiophene formyl trifluoroacetone (TTA) and triphenyl phosphine oxide (TPPO) as organic ligands and using hydroxyapatite as a matrix under set conditions, and is characterized. According to the invention, the cost of the lighte-emitting material is reduced, and the prepared material has characteristics of long service life, high quantum yield, high fluorescence intensity, good fluorescence property, environmental protection and high efficiency.

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 calcium phosphate as a matrix and a preparation method thereof. Background technique [0002] Lanthanides refer to the 15 elements with atomic numbers from 57 to 71 in the periodic table of elements, but since the two elements scandium (Sc) and yttrium (Y) have similar chemical properties to the above-mentioned 15 elements, these 17 elements together called rare earth elements. But the so-called rare earth elements are not rare, and the reserves of most rare earth elements in the earth's crust are relatively high, even 10 times higher than silver (Ag). Not only are their atomic structures similar, but their ionic radii are also similar. In addition, rare earth elements are also closely symbiotic in nature. [0003] Today, rare earth elements have been widely used in electronic equipment, petrochemical, metall...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C07F5/00C09K11/06
CPCC07F5/003C09K11/06C09K2211/182
Inventor 陶栋梁金凤宋苗苗车红彪王永忠姜广鹏陈继堂张琳崔玉民张宏李慧泉
Owner FUYANG NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap