CN106379874B - g-C3N4The preparation method of nanosphere - Google Patents
g-C3N4The preparation method of nanosphere Download PDFInfo
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- 239000002077 nanosphere Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 20
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 10
- 239000002244 precipitate Substances 0.000 claims abstract description 9
- 239000008187 granular material Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000006185 dispersion Substances 0.000 claims abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 6
- 238000000498 ball milling Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- 238000004108 freeze drying Methods 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 3
- 229920000877 Melamine resin Polymers 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 239000010431 corundum Substances 0.000 claims description 3
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 3
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims description 2
- 238000000859 sublimation Methods 0.000 claims description 2
- 230000008022 sublimation Effects 0.000 claims description 2
- 238000007710 freezing Methods 0.000 claims 1
- 230000008014 freezing Effects 0.000 claims 1
- 238000004321 preservation Methods 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 abstract description 6
- 239000004065 semiconductor Substances 0.000 abstract description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000908 ammonium hydroxide Substances 0.000 abstract description 3
- 238000006555 catalytic reaction Methods 0.000 abstract description 3
- 239000000047 product Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000009210 therapy by ultrasound Methods 0.000 abstract description 2
- 230000001699 photocatalysis Effects 0.000 description 6
- 238000011160 research Methods 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000002071 nanotube Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 238000010532 solid phase synthesis reaction Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- -1 cyanogen Amine Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229960004756 ethanol Drugs 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N glycolonitrile Natural products N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
- C01B21/0605—Binary compounds of nitrogen with carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
-
- B01J35/39—
-
- B01J35/51—
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
Abstract
The present invention relates to field of semiconductor materials, it is desirable to provide a kind of g-C3N4The preparation method of nanosphere.Include: rich nitrogen presoma after heat treatment, product is ground to powdered granule, obtains g-C3N4Particle；It is redispersed in acid solution, ultrasonic treatment, which is placed in dark surrounds, to be stood；Washing, drying, are ground to powdered granule, obtain loose g-C after light yellow precipitate filtering3N4Particle；Ultrasonic disperse in its enriching ammonium hydroxide is obtained into dispersion, hydrothermal reaction kettle is transferred to and carries out hydro-thermal reaction；It is freeze-dried after hydro-thermal reaction, finally obtains g-C3N4Nanosphere.The present invention solves g-C3N4Be not easy compound problem with other materials, product dispersibility be made very well, can be made into after dispersion liquid carried out with other semiconductor materials it is compound；The g-C of preparation3N4Nanosphere has bigger serface and high-quantum efficiency, increases surface-active site, reduces g-C3N4The compound probability of light induced electron and hole, improves light-catalyzed reaction efficiency.
Description
Technical field
The invention belongs to field of semiconductor materials, in particular to g-C3N4The preparation method of nanosphere.
Background technique
With the development of the social economy, energy shortage and environmental pollution are increasingly prominent, Photocatalitic Technique of Semiconductor is as solution
Certainly the technological means of the great development prospect of the energy and environmental issue is paid attention to extensively by all circles.Class graphitic carbon nitride (g-
C3N4) because of its special physicochemical properties, Solar use, in terms of show good application before
Scape.However, bulk g-C3N4Due to higher electron-hole pair recombination rate, lower quantum efficiency, less absorption site and
Active site causes photocatalysis efficiency not high, limits its extensive use.
In recent years, g-C3N4Nanosizing has become the important channel for improving its photocatalysis quantum efficiency.There is research to use double cyanogen
Amine is successfully prepared the g-C that diameter is about 1 μm as presoma, by electrochemical method3N4Hollow sphere, this structure can make
Multiple reflections occur in ball for light, its utilization rate to luminous energy is greatly improved.There is research using NaCl as template, passes through heat treatment
Dicyandiamide successfully prepares the g-C of nanometer band structure3N4.The g-C for thering is research to prepare solid phase method3N4It is carried out at reflux with methanol
Reason successfully prepares a length of 0.5~3 μm, the g-C that diameter is 100~150nm3N4Nanometer rods；Since photo-generated carrier can be
Fast transfer in this structure, with original g-C3N4It compares, 1.5 and 2.0 have been respectively increased in photocatalytic activity and photocurrent response
Times.There is research to improve solid phase method technique, continuous quickly shake is carried out to the crucible boat equipped with melamine using oscillator
It swings, is successfully prepared the g-C with nano tube structure3N4.This method is not only simple and easy, but also can be avoided introducing impurity.
It is tested and is found by Methyl blueness (MB), the g-C of nano tube structure3N4With excellent photocatalysis performance.Visible
Under light irradiation, photocatalytic activity is than original g-C3N4Distinguish with P25 1.4 and 2.6 times high.There is research also by g-C3N4Water
The ultrasonic treatment such as solution, acetone soln, ethanol solution, discovery g-C under the action of ultrasonic wave3N4Particle can effectively reduce, and
Degraded formation of nanostructured.Especially under the action of alcoholic solution, ultra-thin g-C can be prepared3N4Nanometer chip architecture.Although super
Photoresponse weakens after sound, and forbidden bandwidth becomes larger, but since nanometer sheet is conducive to the separation and transfer of photo-generated carrier, makes it
Hydrogen generation efficiency is than initial g-C3N4About improve 10 times.In addition, researcher also passes through selection SiO2Core-shell structure copolymer nanosphere, illiteracy are de-
Soil, anodised aluminium etc. are used as hard mould agent, have synthesized g-C3N4Hollow sphere, g-C3N4Nanometer sheet, g-C3N4The nanometers such as nanometer rods
Structure；Wherein, the g-C of synthesis3N4Hollow sphere has loose surface topography, and catalysis produces hydrogen under the irradiation of monochromatic 420nm light
Efficiency is up to 7.5%, and after 7 circulations, can still keep higher production hydrogen activity.
As it can be seen that being directed to current block g-C3N4The technical problem that existing quantum efficiency is low, photocatalytic activity is not high, passes through
Morphological control preparation has the g-C of certain nanostructure3N4It is to solve the problems, such as this important means, and continue to develop new g-
C3N4Morphological control method has become the hot spot of the current field technological innovation.
Summary of the invention
The technical problem to be solved by the present invention is to overcome deficiency in the prior art, provide a kind of g-C3N4The system of nanosphere
Preparation Method.
In order to solve the above technical problems, solution of the invention is:
A kind of g-C is provided3N4The preparation method of nanosphere, includes the following steps:
Step A: rich nitrogen presoma is placed in corundum boat, is heat-treated in tube furnace；After cooled to room temperature,
Yellow polymerizate is ground to powdered granule, obtains g-C3N4Particle；
Wherein, the rich nitrogen presoma is one of cyanamide, dicyandiamide, melamine or a variety of；
Step B: by g-C3N4Particle is scattered in acid solution, is ultrasonically treated 3~5h；It is subsequently placed in dark surrounds and stands 1
~6h, gets a yellowish precipitate object；After filtering, distilled water and dehydrated alcohol washing precipitate are successively used；Finally in 60 DEG C of dryings
For 24 hours, light yellow precipitate is ground to powdered granule, obtains loose g-C3N4Particle；
Wherein, by the concentrated sulfuric acid, 1:3~3:1 is formulated acid solution by volume with concentrated nitric acid, g-C3N4Particle divides in acid solution
Scattered mass percent concentration is 10~50%；
Step C: by loose g-C3N4Particle is added in the concentrated ammonia liquor that mass fraction is 28%, makes solid content
0.01wt%-0.2wt%；After ultrasonic disperse obtains dispersion, it is transferred to hydrothermal reaction kettle and carries out hydro-thermal reaction；Hydro-thermal reaction
After will contain g-C3N4Ammonia spirit be freeze-dried, finally obtain g-C3N4Nanosphere.
In the present invention, in the step A, atmosphere is air when heat treatment, and control heating rate is 1.5~4 DEG C/min, guarantor
Temperature is 450 DEG C~600 DEG C, and soaking time is 2~6h；
In the present invention, in the step A, grinding is using ball-milling technology, control condition are as follows: ratio of grinding media to material 70: 1, ball milling speed
Rate 500 turns/min, Ball-milling Time 4h.
In the present invention, in the step C, hydrothermal temperature is 120 DEG C~200 DEG C, and the reaction time is 6h~for 24 hours；It is cold
Being lyophilized dry is realized using freeze drier, and controlling its shelf temperature is -30 DEG C~-60 DEG C, vacuum degree 1Pa, freeze-drying
Time is 18~36h.
Realization principle of the invention:
The present invention is by sulfuric acid and nitric acid to g-C3N4Block particle is protonated, and loose g-C is obtained3N4Particle；So
Afterwards under hydrothermal conditions, using high concentration ammonium hydroxide to g-C3N4The dissociation of particle network structure, and utilize Freeze Drying Technique
By dissociating product fast and stable and ammonium hydroxide is removed, obtains required g-C3N4Nanosphere.
Compared with prior art, the beneficial effects of the present invention are:
1, g-C is solved3N4It is not easy compound problem with other materials, is prepared for the good g-C of dispersibility3N4Nanosphere,
It can be made into certain density dispersion liquid, it is compound convenient for being carried out with other semiconductor materials；
2, the g-C prepared3N4Nanosphere has bigger serface and high-quantum efficiency, increases surface-active site, reduces
G-C3N4The compound probability of light induced electron and hole, improves light-catalyzed reaction efficiency.
Detailed description of the invention
Fig. 1 is g-C3N4The transmission electron microscope photo of nanosphere.
Specific embodiment
Present invention is further described in detail With reference to embodiment:
g-C3N4The preparation method of nanosphere, includes the following steps:
Step A: a certain amount of rich nitrogen presoma is placed in corundum boat, is heat-treated in tube furnace.Natural cooling
To room temperature, yellow polymerizate is ground to powdered granule, obtains g-C3N4Particle.
Wherein, heating rate when heat treatment is 1.5~4 DEG C/min, and holding temperature is 450 DEG C~600 DEG C, soaking time
For 2~6h, heat-treating atmosphere is air.
Step B: the g-C that will be obtained3N4It is scattered in prepared acid solution, and ultrasonic certain time, then places it in black
Object is got a yellowish precipitate after standing a period of time in dark situation；Sediment is filtered, and successively uses distilled water and dehydrated alcohol
Washing is finally dried for 24 hours at 60 DEG C, light yellow precipitate is ground to powdered granule, obtains loose g-C3N4Particle.
Wherein, it is 1:3~3:1, g-C that the ingredient of acid solution and proportion, which are the volume ratio of the concentrated sulfuric acid and concentrated nitric acid,3N4In acid solution
The mass percent concentration of dispersion is 10~50%；Ultrasonic time is 3~5h；Time of repose is 1~6h in dark surrounds.
Step C: by loose g-C3N4Dispersion is obtained in the concentrated ammonia liquor that particle ultrasonic disperse is 28% to mass fraction
And ultrasound；It is then transferred to hydrothermal reaction kettle and carries out hydro-thermal reaction；G-C will be contained after hydro-thermal reaction3N4Ammonia spirit into
Row freeze-drying, finally obtains g-C3N4Nanosphere.
Wherein, loose g-C3N4Solid content of the particle in concentrated ammonia liquor system is 0.01wt%-0.2wt%；Hydro-thermal reaction temperature
Degree is 120 DEG C~200 DEG C, and the reaction time is 6h~for 24 hours；Shelf temperature is -30 DEG C~-60 DEG C in freeze drier, vacuum degree
For 1Pa, sublimation drying is 18~36h.
The following examples can make the professional technician of this profession that the present invention be more fully understood, but not with any side
The formula limitation present invention.
G-C is successfully made by 8 embodiments respectively3N4The preparation method of nanosphere, the test data in each embodiment are shown in
The following table 1.
1 embodiment tables of data of table
Finally, it should also be noted that the above enumerated are only specific embodiments of the present invention son.Obviously, the present invention is not
It is limited to above embodiment, acceptable there are many deformations.Those skilled in the art can be straight from present disclosure
All deformations for connecing export or associating, are considered as protection scope of the present invention.
Claims (2)
1. a kind of g-C3N4The preparation method of nanosphere, which comprises the steps of:
Step A: rich nitrogen presoma is placed in corundum boat, is heat-treated in tube furnace；It, will be yellow after cooled to room temperature
Color polymerizate is ground to powdered granule, obtains g-C3N4Particle；
Wherein, the rich nitrogen presoma is one of cyanamide, dicyandiamide, melamine or a variety of；
Step B: by g-C3N4Particle is scattered in acid solution, is ultrasonically treated 3 ~ 5h；It is subsequently placed in 1 ~ 6h of standing in dark surrounds, is obtained
To light yellow precipitate；After filtering, distilled water and dehydrated alcohol washing precipitate are successively used；It, will finally in 60 DEG C of dry 24 h
Light yellow precipitate is ground to powdered granule, obtains loose g-C3N4Particle；
Wherein, by the concentrated sulfuric acid, 1:3 ~ 3:1 is formulated acid solution by volume with concentrated nitric acid, g-C3N4What particle dispersed in acid solution
Mass percent concentration is 10 ~ 50%；
Step C: by loose g-C3N4Particle is added in the concentrated ammonia liquor that mass fraction is 28%, makes solid content 0.01wt%-
0.2wt%；After ultrasonic disperse obtains dispersion, it is transferred to hydrothermal reaction kettle and carries out hydro-thermal reaction；G- will be contained after hydro-thermal reaction
C3N4Ammonia spirit be freeze-dried, finally obtain g-C3N4Nanosphere；
Atmosphere is air when heat treatment, and control heating rate is 1.5 ~ 4 DEG C/min, and holding temperature is 450 DEG C ~ 600 DEG C, when heat preservation
Between be 2 ~ 6h；
In the step C, hydrothermal temperature is 120 DEG C ~ 200 DEG C, and the reaction time is 6h ~ for 24 hours；Freeze-drying is to utilize freezing
Drying machine realizes that controlling its shelf temperature is -30 DEG C ~ -60 DEG C, and vacuum degree is 1 Pa, and sublimation drying is 18 ~ 36 h.
2. the method according to claim 1, wherein grinding is using ball-milling technology, control in the step A
Condition are as follows: ratio of grinding media to material 70: 1, ball milling speed 500 turns/min, Ball-milling Time 4h.
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| CN107876074B (en) * | 2017-10-20 | 2020-02-18 | 浙江大学 | g-C3N4Preparation method of nanoparticle/flower-shaped BiOI composite material |
| CN107954405A (en) * | 2017-11-22 | 2018-04-24 | 浙江大学 | g-C3N4The preparation method of colloidal sol |
| CN108190849B (en) * | 2017-12-28 | 2021-09-14 | 四川大学 | Graphite phase carbon nitride nano particle and preparation method thereof |
| CN110148713B (en) * | 2018-02-12 | 2021-02-05 | 澳门大学 | Carbon-coated nitrogen-rich g-C3N4And anode material and preparation method thereof |
| CN109205580A (en) * | 2018-11-12 | 2019-01-15 | 青岛科技大学 | A kind of method of ball milling removing graphite phase carbon nitride |
| CN109622013B (en) * | 2018-12-07 | 2021-06-01 | 陕西科技大学 | Graphite-like carbon nitride- (110) crystal face bismuth vanadate Z-type heterojunction photocatalyst and preparation method and application thereof |
| CN109734060B (en) * | 2019-02-18 | 2020-12-25 | 东南大学 | Carbon nitride nano material and preparation method and application thereof |
| CN110233271A (en) * | 2019-05-24 | 2019-09-13 | 南京杰科丰环保技术装备研究院有限公司 | A kind of carbon-based formic acid catalyst for preparing hydrogen of layered nitride and preparation method thereof |
| CN110813375B (en) * | 2019-10-31 | 2022-08-05 | 湘潭大学 | Preparation method and application of ultralong hollow chain spherical carbon nitride photocatalytic material |
| CN111203258A (en) * | 2020-02-24 | 2020-05-29 | 上海电力大学 | Photocatalyst S-C3N4Preparation method and application of |
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| JPH09184062A (en) * | 1995-12-29 | 1997-07-15 | Sumitomo Electric Ind Ltd | Member coated with carbon nitride single crystal film and its production |
| US7563425B2 (en) * | 2007-06-28 | 2009-07-21 | Korea Advanced Institute Of Science And Technology | Carbonnitride nanotubes with nano-sized pores on their stems, their preparation method and control method of size and quantity of pore thereof |
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