Organic-inorganic hybrid rare earth composite fluorescent material and preparation method thereof

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

Pending Publication Date: 2020-01-07
FUYANG NORMAL UNIVERSITY
View PDF5 Cites 0 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, 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 greater restrictions on the application of rare earth complexes in many aspects limitations

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
  • Organic-inorganic hybrid rare earth composite fluorescent material and preparation method thereof
  • Organic-inorganic hybrid rare earth composite fluorescent material and preparation method thereof
  • Organic-inorganic hybrid rare earth composite fluorescent material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0097] (1) The preparation method of the composite fluorescent material is simple and easy;

[0098] (2) The composite fluorescent material has high fluorescence excitation intensity, high fluorescence emission intensity, high quantum yield, and long fluorescence lifetime;

[0099] (3) The particle size of the composite fluorescent material prepared by the method of the present invention is uniform and can be controlled within an appropriate particle size range;

[0100] (4) The composite fluorescent material of the present invention has low cost and good thermal stability, and is expected to become a good light emitter in high temperature resistant devices.

Embodiment 1

[0103] Weigh 0.9991g of dried calcium carbonate 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;

[0104] Weigh 0.2770g of TPPO and 0.3318g of TTA respectively, add them into the beaker, then add 20mL of absolute ethanol, stir to dissolve;

[0105] Weigh 0.1300g of europium chloride hexahydrate, add it to the above ligand solution, stir evenly, then ultrasonically oscillate for 30min to obtain a mixed solution, and transfer it to the addition funnel;

[0106] Add the treated calcium carbonate into the reaction bottle, place the reaction bottle in the heating mantle, turn on the stirring, and connect the reflux device, then add the solution in step 3 dropwise to the reaction bottle, after 10 minutes of dropping, heat to Reflux reaction, reaction 2h;

[0107]After completion of the reaction, cool down to room temperature, filter, and put the obtained f...

Embodiment 2

[0109] The present embodiment is identical with the method used in Example 1, and the difference is only that the consumption of calcium carbonate is different, and the consumption of present embodiment calcium carbonate is 2.0097g; The product obtained is denoted as E2.

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

PropertyMeasurementUnit
fluorescenceaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention provides an organic-inorganic hybrid rare earth composite fluorescent material and a preparation method thereof, wherein an europium coordination compound composite red fluorescent material is prepared by using europium ions as a light emitting body, using triphenyl phosphine oxide (TPPO) and 2-thenoyltrifluoroacetone (TTA) as organic ligands and using calcium carbonate as a matrix under set conditions, and is characterized. According to the invention, the cost of the light emitting material is reduced, and the prepared material is long in service life and good in fluorescence property.

Description

technical field [0001] The invention relates to the field of fluorescent materials, in particular to an organic-inorganic hybrid rare earth complex composite fluorescent material and a preparation method thereof. Background technique [0002] Rare earth elements (rare earth elements) have the reputation of "industrial gold". Now it has become a very important strategic resource, and my country has always been a world-renowned country rich in rare earth resources. With the development of new science and technology, the application of rare earth resources in industry has begun to develop rapidly. So far, the application products of rare earth resources Has penetrated into every aspect of our life, rare earth elements are now widely used in nonferrous metallurgy, petrochemical, military, glass ceramics, magnetic materials and various functional materials, light industry and textile industry, agricultural medicine and other fields. [0003] Rare earth elements refer to group III...

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
Patent Type & Authority Applications(China)
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
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