CN108276995B - Application of the melem carbon-nitrogen material as long after glow luminous material - Google Patents
Application of the melem carbon-nitrogen material as long after glow luminous material Download PDFInfo
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- CN108276995B CN108276995B CN201810063854.2A CN201810063854A CN108276995B CN 108276995 B CN108276995 B CN 108276995B CN 201810063854 A CN201810063854 A CN 201810063854A CN 108276995 B CN108276995 B CN 108276995B
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
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- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
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Abstract
Application the present invention provides melem carbon-nitrogen material as long after glow luminous material.Synthesized melem carbon-nitrogen material has long-persistence luminous performance, luminous intensity is high, it can shine in visible light region, can be used for the preparation of the display equipment in the fields such as LED energy-saving illumination device and security against fire, traffic sign and toy, can be applied to the fields such as optical communication, energy storage.The results showed that X-ray diffractogram shows that melem carbon-nitrogen material is the melem of hexagonal crystal system；Scanning electron microscope is the result shows that its pattern is nano bar-shape；Emission spectra is located at 418nm, 417nm, 427nm and 436nm to sweet Le case carbon-nitrogen material under the excitation of 320nm, 280nm, 360nm and 400nm wavelength light source respectively；The long afterglow service life of melem carbon-nitrogen material reaches a second rank.
Description
Technical field
The present invention relates to luminescent material technical fields more particularly to melem carbon-nitrogen material as long after glow luminous material
Using.
Background technique
Carbon-nitrogen material always due to mechanics, optics, electricity, in terms of have it is many have different performance, show
Its potential application foreground in terms of aviation, photoelectricity, machinery, lithium.No matter resonable carbon-nitrogen material research and development is till now,
Certain achievement is all achieved by, materials characteristics and application exploitation etc..2009, University of Fuzhou Wang Xinchen professor et al. the
Once g-C3N4 be applied to photocatalysis, evoked whole world scientist for C3N4 research interest (refering to
Nat.Mater.2009；8:76).2015, Nanyang Technological University Xiong Qihua taught seminar and is heated by high vacuum
Melamine obtains g-C3N4, and have studied product g-C3N4 luminescence generated by light and catalytic degradation dyestuff performance (refering to
Nanoscale 2015；7:12343).
Melem has long history as a member in carbon-nitrogen material family.The colleague of Schnick and he in 2003
The play-by-play crystal structure and spectrum of melem, and during proving that melem is melamine thermal condensation preparation g-C3N4
A kind of important intermediate (refering to J.Am.Chem.Soc.2003；125:10288).2014, Nanjing University Zou Zhi was just taught
It awards seminar and reports melem for the first time and can be used as a kind of metal-free photochemical catalyst to be used for methanol aqueous solution photocatalysis
Hydrogen manufacturing is (refering to Int.J.Hydrogen.Energy 2014；39:13519-13526).2013, South China Science & Engineering University Qiu Jianrong
Professor seminar reports melamine and increases and the variation of pattern with sintering temperature, and has studied a series of its luminescence generated by light
Characteristic, and study and point out its fluorescence lifetime between 106ns to 259ns (refering to Sci.Rep.2013；3:1943).Existing carbon
Nitrogen material does not report that melem has not been reported in long-persistence luminous aspect of performance in long-persistence luminous aspect of performance.
Summary of the invention
In view of this, the application the purpose of the present invention is to provide melem carbon-nitrogen material as long after glow luminous material,
The melem carbon-nitrogen material has long-persistence luminous function.
Application the present invention provides melem carbon-nitrogen material as long after glow luminous material.
Preferably, the melem carbon-nitrogen material is nano bar-shape.
Application the present invention provides melem carbon-nitrogen material as long after glow luminous material.Melem carbon-nitrogen material has
Long-persistence luminous performance, luminous intensity is high, can shine in visible light region, can be used for LED energy-saving illumination device and fire-fighting peace
Entirely, the preparation of the display equipment in the fields such as traffic sign and toy, and can be applied to the fields such as optical communication, energy storage.Experiment knot
Fruit shows: X-ray diffractogram shows that melem carbon-nitrogen material is the melem of hexagonal crystal system；Scanning electron microscope is the result shows that its pattern
For nano bar-shape；Transmitting spectral peak is located at sweet Le case carbon-nitrogen material under 320nm, 280nm, 360nm and 400nm excitation respectively
418nm, 417nm, 427nm and 436nm；The long afterglow service life of melem carbon-nitrogen material reaches a second rank.
Detailed description of the invention
Fig. 1 is the X-ray diffractogram of 1 products therefrom of the embodiment of the present invention；
Fig. 2 is the scanning electron microscope diagram of 1 products therefrom of the embodiment of the present invention；
Fig. 3 is launching light spectrogram of 1 products therefrom of the embodiment of the present invention under different wavelengths of light excitation；
Fig. 4 is the change wavelength inspired long-lasting attenuation curve of 1 products therefrom of the embodiment of the present invention.
Specific embodiment
Application the present invention provides melem carbon-nitrogen material as long after glow luminous material.
In the present invention, it with the melem carbon-nitrogen material of long-persistence luminous performance, is preferably made by following methods:
Melamine is subjected to gas washing processing, under normal pressure and argon gas protection, is warming up to the heating rate of 10 DEG C/min
425 DEG C, 2 hours are kept the temperature, melem carbon-nitrogen material is obtained.
The above method is simple, at low cost, and environmental pollution is small, easily operated, and nanometer rods can be obtained in step sintering
The melem carbon-nitrogen material of shape.
In the present invention, entire heating and cooling process, a straight-through argon gas is as protective gas in tube furnace.The stream of the argon gas
Amount is preferably 50sccm.
In the present invention, the melamine carry out before gas washing processing it is also preferable to include:
Melamine is uniformly placed in ceramic boat and folds one layer of ceramic boat in ceramic boat, ceramic boat is put in pipe
The center warm area position of formula furnace, installs tube furnace, carries out gas washing processing to melamine.
In the present invention, the normal pressure preferably returns normal pressure by argon gas after gas washing processing.
After the present invention is kept the temperature, it is preferred to use the mode of natural cooling is cooled to room temperature, and obtains melem carbon-nitrogen material.
Etc. whole process complete, close gas circuit simultaneously take out sample, the product obtained after sintering is ground, is obtained
Melem carbon-nitrogen material.
In the present invention, the melem carbon-nitrogen material is nano bar-shape.
A kind of application the present invention provides melem carbon-nitrogen material as long after glow luminous material.Melem carbon-nitrogen material
With long-persistence luminous performance, luminous intensity is high, can shine in visible light region, can be used for LED energy-saving illumination device and disappear
The preparation of the display equipment in the fields such as anti-safety, traffic sign and toy, and can be applied to the fields such as optical communication, energy storage.It is real
Test the result shows that: X-ray diffractogram show melem carbon-nitrogen material be hexagonal crystal system melem；Scanning electron microscope the result shows that its
Pattern is nano bar-shape；Emission spectra distinguishes position to sweet Le case carbon-nitrogen material under 320nm, 280nm, 360nm and 400nm excitation respectively
In 418nm, 417nm, 427nm and 436nm；The long afterglow service life of melem carbon-nitrogen material reaches a second rank.
In order to further illustrate the present invention, melem carbon-nitrogen material provided by the invention is used as below with reference to embodiment and is grown
The application of afterglow materials is described in detail, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
There is the melem carbon-nitrogen material of long afterglow performance using following steps preparation: weighing 1g melamine and uniformly place
One layer of ceramic boat is folded in ceramic boat and in ceramic boat, and ceramic boat is put to the center warm area position in tube furnace, is installed
Then tube furnace leads to argon gas and returns normal pressure to gas washing processing is carried out in tube furnace.Then setting tube furnace runs program, setting pipe
It is 10 DEG C/min that formula furnace, which is sintered heating rate, is warming up to 425 DEG C, keeps the temperature 2 hours and then cooled to room temperature, entire heating and cooling
Process, a straight-through argon gas is 50sccm as protective gas, the throughput of argon gas in tube furnace.Etc. whole process complete, close
Gas circuit simultaneously takes out sample, and the product obtained after sintering is ground, final product is then collected, is obtained with long afterglow
The melem carbon-nitrogen material of energy.
The present invention carries out X-ray diffraction test to products therefrom, and as a result as shown in FIG. 1, FIG. 1 is 1 institutes of the embodiment of the present invention
Obtain the X-ray diffractogram of product；Fig. 1 shows: it is the melem of hexagonal crystal system.
Scanning electron microscope diagram is as shown in Fig. 2, Fig. 2 is the scanning electron microscope of 1 products therefrom of the embodiment of the present invention
Picture；Known to Fig. 2: product microscopic appearance prepared by embodiment 1 is nanometer rods.
Fig. 3 is launching light spectrogram of 1 products therefrom of the embodiment of the present invention under different wavelengths of light excitation, and Fig. 3 shows: Miller
Case carbon-nitrogen material respectively 418nm, 417nm, 427nm and 436nm excitation under transmitting spectral peak be located at 320nm, 280nm,
360nm and 400nm.
Fig. 4 is that different wavelengths of light excites the obtained long afterglow attenuation curve of sample, and Fig. 4 shows: melem has more than length
Brightness luminescent properties, die-away time reach a second rank.
As seen from the above embodiment, the application the present invention provides melem carbon-nitrogen material as long after glow luminous material.
Melem carbon-nitrogen material has long-persistence luminous performance, and luminous intensity is high, can shine in visible light region, can be used for LED section
Can the fields such as illuminating device and security against fire, traffic sign and toy display equipment preparation, and can be applied to optical communication,
The fields such as energy storage.The results showed that X-ray diffractogram shows that melem carbon-nitrogen material is the melem of hexagonal crystal system；Scanning
Electronic Speculum is the result shows that its pattern is nano bar-shape；Sweet Le case carbon-nitrogen material is excited in 320nm, 280nm, 360nm and 400nm respectively
Lower transmitting spectral peak is located at 418nm, 417nm, 427nm and 436nm；The long afterglow service life of melem carbon-nitrogen material reaches second grade
Not.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (1)
1. application of the melem carbon-nitrogen material as long after glow luminous material；
The melem carbon-nitrogen material is nano bar-shape；
Melamine is subjected to gas washing processing, under normal pressure and argon gas protection, is warming up to 425 with the heating rate of 10 DEG C/min
DEG C, 2 hours are kept the temperature, melem carbon-nitrogen material is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810063854.2A CN108276995B (en) | 2018-01-23 | 2018-01-23 | Application of the melem carbon-nitrogen material as long after glow luminous material |
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|---|---|---|---|
| CN201810063854.2A CN108276995B (en) | 2018-01-23 | 2018-01-23 | Application of the melem carbon-nitrogen material as long after glow luminous material |
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| CN108276995A CN108276995A (en) | 2018-07-13 |
| CN108276995B true CN108276995B (en) | 2019-10-22 |
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| CN103601162B (en) * | 2013-11-26 | 2015-05-13 | 天津大学 | Preparation method of graphite type carbon nitride nanotubes |
| CN107502338B (en) * | 2017-08-25 | 2020-02-18 | 合肥工业大学 | OLED or flexible transparent display device using blue light emitting layer |
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