CN115322774B - Wen Luguang-resistant fluorescent powder and preparation method thereof - Google Patents
Wen Luguang-resistant fluorescent powder and preparation method thereof Download PDFInfo
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- CN115322774B CN115322774B CN202210697064.6A CN202210697064A CN115322774B CN 115322774 B CN115322774 B CN 115322774B CN 202210697064 A CN202210697064 A CN 202210697064A CN 115322774 B CN115322774 B CN 115322774B
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- fluorescent powder
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- 239000000843 powder Substances 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 14
- 230000005284 excitation Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- 239000007795 chemical reaction product Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 5
- 150000002910 rare earth metals Chemical class 0.000 description 5
- 238000000498 ball milling Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000001878 scanning electron micrograph Methods 0.000 description 4
- 238000004020 luminiscence type Methods 0.000 description 2
- 238000005424 photoluminescence Methods 0.000 description 2
- 108010043121 Green Fluorescent Proteins Proteins 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002189 fluorescence spectrum Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 perovskite Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/65—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing carbon
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
The invention discloses Wen Luguang-resistant fluorescent powder and a preparation method thereof, wherein after pearl is crushed and ground, the pearl is subjected to hydrothermal reaction, and then filtered and dried to obtain Wen Luguang-resistant fluorescent powder, wherein the temperature resistance is more than 500 ℃ and exceeds the temperature resistance limit of organic fluorescent powder. The preparation method is environment-friendly and easy to industrialize and enlarge.
Description
Technical Field
The invention belongs to the technical field of fluorescent powder, and in particular relates to Wen Luguang-resistant fluorescent powder and a preparation method thereof
Background
The phosphor is a photoluminescent material, and generates light of another wavelength under excitation irradiation of light of one wavelength, and has a difference between up-conversion and down-conversion, and up-conversion phosphor refers to that the phosphor emits light of a short wavelength with high energy under excitation of light of a long wavelength with low energy, also called anti-stokes light, specifically, emits blue light under excitation of red light, for example. The down-converting phosphor is the opposite.
The fluorescent powder can be divided into organic fluorescent powder and inorganic fluorescent powder, and the organic fluorescent powder has the problems of poor thermal stability and chemical stability, easiness in generating light drift and the like. The inorganic fluorescent powder also comprises rare earth fluorescent powder, perovskite, quantum dot fluorescent powder and other types.
Because of low energy consumption, the energy ratio converted into light energy is more and more popular in the field of illumination, the photoluminescence principle is utilized for LED luminescence, blue light emitted by a light emitting diode is generally utilized for illuminating rare earth-containing yttrium aluminum garnet fluorescent powder to perform compound luminescence, red fluorescent powder is added into fluorescent powder of some LED lamps, but the red fluorescent powder is high in price and complex in preparation process. The fluorescent powder used in the prior art LED is generally rare earth fluorescent powder, and the rare earth fluorescent powder is obtained by heat treatment under the high temperature of more than one thousand degrees and the protective atmosphere.
Disclosure of Invention
The invention aims to disclose Wen Luguang-resistant fluorescent powder and a preparation method thereof, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the invention adopts the following technical scheme: the temperature-resistant fluorescent powder is a complex of aragonite and carbon quantum dots, the excitation wavelength of the fluorescent powder is 340nm, the emission wavelength of the fluorescent powder is 529nm, and the temperature resistance is more than 500 ℃. The method for preparing the temperature-resistant green fluorescent powder comprises the following steps: grinding pearl into powder, and placing the pearl powder into a hydrothermal reaction kettle for hydrothermal reaction for 24 hours at 180-240 ℃. And drying the reaction product to obtain the Wen Luguang resistant fluorescent powder.
The beneficial effects are that: compared with rare earth fluorescent powder, the fluorescent powder obtained by the method has simple preparation process and high luminous intensity, and can be used in photoluminescence application occasions such as LED lamps needing to resist certain temperature.
Drawings
FIG. 1 is an SEM image of the pearl powder used in example 1;
FIG. 2 is a fluorescence spectrum of the phosphor of example 1.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, remain within the scope of the invention.
Example 1:
crushing pearl, and ball milling with a ball mill to obtain pearl powder. SEM image of pearl powder is shown in figure 1, and the pearl powder is put into a hydrothermal reaction kettle for hydrothermal reaction at 180 ℃ for 24 hours. And filtering and drying the reaction product to obtain Wen Luguang-resistant fluorescent powder. The excitation wavelength and emission wavelength of the prepared fluorescent powder are shown in figure 2, the excitation wavelength is 340nm, the emission wavelength is 529nm, and the temperature resistance is more than 500 ℃.
Example 2:
crushing pearl, and ball milling with a ball mill to obtain pearl powder. The pearl powder is put into a hydrothermal reaction kettle for hydrothermal reaction for 24 hours at 200 ℃. And filtering and drying the reaction product to obtain Wen Luguang-resistant fluorescent powder. The excitation wavelength and emission wavelength of the prepared fluorescent powder are shown in figure 2, the excitation wavelength is 340nm, the emission wavelength is 529nm, and the temperature resistance is more than 500 ℃.
Example 3:
crushing pearl, and ball milling with a ball mill to obtain pearl powder. SEM image of pearl powder is shown in figure 1, and the pearl powder is put into a hydrothermal reaction kettle for hydrothermal reaction at 220 ℃ for 24 hours. And filtering and drying the reaction product to obtain Wen Luguang-resistant fluorescent powder. The excitation wavelength and emission wavelength of the prepared fluorescent powder are shown in figure 2, the excitation wavelength is 340nm, the emission wavelength is 529nm, and the temperature resistance is more than 500 ℃.
Example 4:
crushing pearl, and ball milling with a ball mill to obtain pearl powder. SEM image of pearl powder is shown in figure 1, and the pearl powder is put into a hydrothermal reaction kettle for hydrothermal reaction at 240 ℃ for 24 hours. And filtering and drying the reaction product to obtain Wen Luguang-resistant fluorescent powder. The excitation wavelength and emission wavelength of the prepared fluorescent powder are shown in figure 2, the excitation wavelength is 340nm, the emission wavelength is 529nm, and the temperature resistance is more than 500 ℃.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A Wen Luguang resistant phosphor, characterized by: the fluorescent powder is a complex of aragonite and carbon quantum dots, has the temperature resistance of more than 500 ℃, has the excitation wavelength of 340 nanometers and emits green light with the wavelength of 529 nanometers.
2. A preparation method of Wen Luguang-resistant fluorescent powder is characterized by comprising the following steps: grinding pearl into powder, placing the pearl powder into a hydrothermal reaction kettle for hydrothermal reaction for 24 hours, and drying the reaction product to obtain Wen Luguang-resistant fluorescent powder.
3. The method for preparing Wen Luguang-resistant fluorescent powder according to claim 2, wherein the method comprises the following steps: the reaction temperature of the hydrothermal reaction is 180-240 ℃.
4. The method for preparing Wen Luguang-resistant fluorescent powder according to claim 2, wherein the method comprises the following steps: the temperature resistance of the temperature-resistant fluorescent powder is more than 500 ℃.
5. The method for preparing Wen Luguang-resistant fluorescent powder according to claim 2, wherein the method comprises the following steps: the prepared Wen Luguang-resistant fluorescent powder is used as LED lamp fluorescent powder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210697064.6A CN115322774B (en) | 2022-06-20 | 2022-06-20 | Wen Luguang-resistant fluorescent powder and preparation method thereof |
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| CN202210697064.6A CN115322774B (en) | 2022-06-20 | 2022-06-20 | Wen Luguang-resistant fluorescent powder and preparation method thereof |
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| CN115322774A CN115322774A (en) | 2022-11-11 |
| CN115322774B true CN115322774B (en) | 2023-12-05 |
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| CN116814254A (en) * | 2023-02-16 | 2023-09-29 | 电子科技大学长三角研究院(湖州) | Rare earth-free lead-free halide double perovskite-based double-component fluorescent powder and preparation method and application thereof |
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| JP2010150387A (en) * | 2008-12-25 | 2010-07-08 | Univ Of Miyazaki | Calcite crystal with fluorescence property and method for producing the same |
| CN103086415A (en) * | 2013-01-31 | 2013-05-08 | 南昌航空大学 | Method for preparing lamellar aragonite calcium carbonate powder from shell under hydrothermal condition |
| CN103086414A (en) * | 2013-01-31 | 2013-05-08 | 南昌航空大学 | Method for preparing high-purity calcite calcium carbonate micropowder through shell hydro-thermal treatment |
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2022
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| CN103086415A (en) * | 2013-01-31 | 2013-05-08 | 南昌航空大学 | Method for preparing lamellar aragonite calcium carbonate powder from shell under hydrothermal condition |
| CN103086414A (en) * | 2013-01-31 | 2013-05-08 | 南昌航空大学 | Method for preparing high-purity calcite calcium carbonate micropowder through shell hydro-thermal treatment |
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| CN105891310A (en) * | 2016-04-05 | 2016-08-24 | 广西师范学院 | Method for detecting concentration of D-tryptophan in solution |
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