CN109331857A - A kind of preparation method and application of porous rich carbon g-C3N4 photochemical catalyst - Google Patents
A kind of preparation method and application of porous rich carbon g-C3N4 photochemical catalyst Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 65
- 239000003054 catalyst Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229940043267 rhodamine b Drugs 0.000 claims abstract description 14
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 8
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000015556 catabolic process Effects 0.000 claims description 10
- 238000006731 degradation reaction Methods 0.000 claims description 9
- 229910021392 nanocarbon Inorganic materials 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000000137 annealing Methods 0.000 claims description 5
- 239000013067 intermediate product Substances 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229910052724 xenon Inorganic materials 0.000 claims description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000002835 absorbance Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 239000000047 product Substances 0.000 claims 1
- 230000001699 photocatalysis Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 7
- 230000006798 recombination Effects 0.000 abstract description 5
- 238000005215 recombination Methods 0.000 abstract description 5
- 239000004065 semiconductor Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005286 illumination Methods 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- 238000002336 sorption--desorption measurement Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- QTERRLQSXYDXAH-UHFFFAOYSA-N [C].N1=C(N)N=C(N)N=C1N Chemical compound [C].N1=C(N)N=C(N)N=C1N QTERRLQSXYDXAH-UHFFFAOYSA-N 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- -1 carbon modified cyanurotriamide Chemical class 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- 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—
-
- B01J35/60—
-
- B01J35/615—
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
It is modifies to melamine forerunner using active powdered carbon using melamine and active powdered carbon as raw material the invention discloses a kind of preparation method and application of porous rich carbon g-C3N4 photochemical catalyst, preparation g-C3N4 photochemical catalyst is roasted by varying environment twice.G-C3N4 prepared by the present invention possesses big surface area and high porosity.Porous structure can effectively improve the efficiency of energy conversion, increase semiconductor specific surface area, to provide more Adsorptions, improve photocatalytic activity.In addition, nanometer hole wall structure reduces the transmission range of photo-generate electron-hole, the separative efficiency of light induced electron and hole is improved, recombination rate is reduced, significantly improves photocatalytic activity under visible light.This method has the advantages that at low cost and facilitates operation.Using its harmful substance such as degradable rhodamine B under visible light illumination, there is important practical application value in the depollution of environment and clean energy resource production.
Description
Technical field
The invention belongs to catalysis material technical fields, and in particular to one kind passes through the porous rich carbon g- of modified precursor preparation
The method and application of C3N4 photochemical catalyst.
Background technique
As energy and environment problem more restricts the development of modern society, photocatalysis technology is by increasingly extensive pass
Note.Catalysis material can utilize sunlight hydrolytic hydrogen production, can solve the energy that human development is faced with decomposing harmful substances
Amount and environmental problem.Currently, the electron-hole pair recombination rate generated after the irradiation of photochemical catalyst light is big, photon utilization efficiency is low,
Photocatalytic activity is not high.Therefore it is modified research to semiconductor light-catalyst to be necessary, modified purpose and effect packet
Raising excitation separation of charge is included, inhibits Carrier recombination to improve quantum efficiency.
A kind of organic graphite phase carbon nitride (g-C3N4), is only made of C and N element, illustrates non-metal optical catalyst
Eliminate the great potential of pollutant.G-C3N4 is a kind of stable spinel, has suitable band gap and unique performance
And stable photochemical properties, in pigment, fire proofing material, the hydrogen manufacturing of photochemical breakdown water and anode material of lithium ion battery etc.
Field, which suffers from, to be widely applied, but also is the high efficiency photocatalyst of Visible Light Induced Photocatalytic organic pollutant.Pure g-C3N4 light
Catalyst keeps its photocatalysis efficiency very low since the lower and quick photo-generate electron-hole of surface area is compound, thus application on by
To limitation.
Summary of the invention
It is an object of the present invention to provide a kind of preparation methods to be simple and convenient to operate, at low cost, mild condition, high catalytic efficiency
Porous rich carbon g-C3N4 photochemical catalyst preparation method.
Another object of the present invention is to provide a kind of application of porous rich carbon g-C3N4 photochemical catalyst.
The technical solution adopted by the present invention is that:
A kind of porous rich carbon g-C3N4 photochemical catalyst, preparation method the following steps are included:
1) 50ml dehydrated alcohol being added in melamine and active powdered carbon, stirring 2h is uniformly mixed, ultrasonic 30min, drying,
Obtain intermediate product；
2) by intermediate product, grinding, in Muffle furnace, under air environment, roasting is obtained with amorphous nano carbon particle
G-C3N4 powder；
3) the g-C3N4 powder that amorphous nano carbon particle will be had, after regrinding, in Muffle furnace, air environment
Under, annealing obtains porous rich carbon g-C3N4 photochemical catalyst.
The porous rich carbon g-C3N4 photochemical catalyst of described one kind, the mass ratio of melamine and active powdered carbon is 1 in step 1):
0.01-0.08。
The porous rich carbon g-C3N4 photochemical catalyst of described one kind, maturing temperature is 500 DEG C -550 in Muffle furnace in step 2)
DEG C, time 4h.
The porous rich carbon g-C3N4 photochemical catalyst of described one kind, 5 DEG C of heating rate is per minute when roasting in step 2).
The porous rich carbon g-C3N4 photochemical catalyst of described one kind, annealing temperature is 460 DEG C -480 in Muffle furnace in step 3)
DEG C, time 2h.
The porous rich carbon g-C3N4 photochemical catalyst of described one kind, 5 DEG C of heating rate is per minute when annealing in step 3).
A kind of application in rhodamine B degradation under visible light of the porous richness carbon g-C3N4 photochemical catalyst.
The application is protected from light stirring, makes specifically, porous richness carbon richness carbon g-C3N4 is added in rhodamine B solution
It comes into full contact with；Using 300W xenon lamp as light source, photoelectric current is adjusted to the position 20mA, is adjusted light intensity center and is just being irradiated to sample table
The rhodamine B solution for mixing porous rich carbon g-C3N4 is put in below light source, passes through the extinction to sample by face, fixed good position
Degree test, it was demonstrated that the degradation of rhodamine B.
The invention has the advantages that
G-C3N4 is a kind of non-metal N type semiconductor, due to its with good chemical stability, thermal stability and
Photoelectric characteristic and get more and more people's extensive concerning, forbidden bandwidth 2.7eV, can be absorbed wavelength be less than 600nm visible light,
But its quantum efficiency is still very low, its weakly visible light absorption response, high charge recombination, small specific surface area, photoproduction electricity
Son-hole is easily compound, so as to cause lesser photocatalytic activity.In order to improve the photocatalytic activity of g-C3N4, the present invention lives
Property powdered carbon melamine presoma be modified be prepared for porous rich carbon g-C3N4, the porous richness carbon g-C3N4 of acquisition possesses greatly
Surface area and high porosity.And significantly improve the content of carbon in g-c3n4.Porous structure can effectively improve energy
The efficiency of conversion is measured, semiconductor specific surface area is increased, to provide more Adsorptions, improves photocatalytic activity.In addition,
Due to the increase of carbon element content, C atom is made largely to replace the position in lattice where N atom, semiconductor is made to generate more lack
It falls into.Due to these defects, the transmission range of photo-generate electron-hole is reduced, improves the separative efficiency of light induced electron and hole, drop
Low recombination rate significantly improves photocatalytic activity under visible light.Catalyst stabilization prepared by the method for the present invention
Property it is good, chemical property stablize, may be reused.Therefore, under same time visible light rhodamine B degradation degradation rate compared to
Pure g-C3N4 is increased to 83% from 17%.
Detailed description of the invention
Fig. 1 is the XRD diagram of pure g-C3N4 photochemical catalyst prepared by embodiment 1.
Fig. 2 is the SEM figure of pure g-C3N4 photochemical catalyst prepared by embodiment 1.
Fig. 3 is the XPS figure of pure g-C3N4 photochemical catalyst prepared by embodiment 1.
Fig. 4 is the XRD diagram of porous rich carbon g-C3N4 photochemical catalyst prepared by embodiment 2.
Fig. 5 is the SEM figure of porous rich carbon g-C3N4 photochemical catalyst prepared by embodiment 2.
Fig. 6 is the XPS figure of porous rich carbon g-C3N4 photochemical catalyst prepared by embodiment 2.
Fig. 7 is the pore-size distribution and nitrogen adsorption desorption figure of pure g-C3N4 catalyst and porous rich carbon g-C3N4 catalyst.
Fig. 8 is pure g-C3N4 catalyst and porous rich carbon g-C3N4 catalyst in photocatalytic degradation rhodamine B efficiency chart.
Specific embodiment
The pure g-C3N4 photochemical catalyst of embodiment 1
(1) preparation method
It measures 2.52 grams of melamines and alumina crucible is added, be transferred in Muffle furnace, in air atmosphere, in 550 DEG C,
4h (heating rate is 5 DEG C of .min-1) is roasted, pure g-C3N4 photochemical catalyst is obtained.
(2) it detects
Fig. 1 is that the XRD of pure g-C3N4 photochemical catalyst sample is detected.As seen from Figure 1, occur two at 13.1 degree and 27.4 degree
A diffraction maximum corresponds respectively to (002) and (100) crystal face of g-C3N4, and as can be seen from the figure sample has preferable crystallization
Degree.
Fig. 2 is that the SEM of pure g-C3N4 photochemical catalyst sample is detected.From Figure 2 it can be seen that pure g-C3N4 shows typical block
Shape structure, while sample does not show the presence of hole in scanning electron microscope image.
Fig. 3 is that the XPS of pure g-C3N4 photochemical catalyst sample is detected.As seen from Figure 3, pure g-C3N4 photochemical catalyst sample
C 1s figure, there is apparent C-C key peak and C-N key peak.
Fig. 7 is that pure g-C3N4 photochemical catalyst sample carries out nitrogen adsorption desorption and pore-size distribution test.As seen from Figure 7,
The smaller specific surface of the pure g-C3N4 of preparation is only 14.95m2g-1, while the void content of sample is also smaller.
The porous rich carbon g-C3N4 photochemical catalyst of embodiment 2
(1) preparation method
1) 2.52 grams of melamine solid and 0.1512g activity powdered carbon are added in 50ml dehydrated alcohol, stirring 2h is extremely
It is uniformly mixed, is transferred in baking oven and dries 14 hours after ultrasonic 30min, obtain grey intermediate product.
2) grey intermediate product will be obtained, is ground, is put into alumina crucible, is transferred in Muffle furnace, air atmosphere,
550 DEG C, roasting 4h (5 DEG C of heating rate is per minute) obtains the g-C3N4 powder with amorphous nano carbon particle.
3) the g-C3N4 powder that will have amorphous nano carbon particle, after regrinding, in Muffle furnace, at 470 DEG C, is moved back
Fiery 2h (5 DEG C of heating rate is per minute), obtains porous rich carbon g-C3N4 photochemical catalyst.
(2) it detects
Fig. 4 is the XRD test of porous rich carbon g-C3N4 sample.From fig. 4, it can be seen that sample has preferable crystallinity, such as scheme
Shown XRD diagram picture corresponds respectively to (002) and (100) crystal face of g-C3N4 in 13.1 degree and 27.4 degree appearance, two diffraction maximums.
Pure g-C3N4 is similar with the XRD characteristic peak of porous g-C3N4, illustrates with active powdered carbon modified cyanurotriamide precursor preparation
Without the formation of the graphite linings of influence g-C3N4 during porous richness carbon g-C3N4.
Fig. 5 is the SEM test of porous rich carbon g-C3N4 sample.As seen from Figure 5, sample is in scanning electron microscope image in coarse
Surface and have cellular pore structure, the even pore distribution of sample.
Fig. 6 is the XPS detection of porous rich carbon g-C3N4 photochemical catalyst sample.As seen from Figure 6, porous rich carbon g-C3N4 light is urged
Agent sample C 1s figure, there is apparent C-C key peak and C-N key peak.And the C-C key peak ratio of porous rich carbon g-c3n4 is apparently higher than
Pure g-c3n4, provable carbon-nitrogen ratio are significantly improved.
Fig. 7 is nitrogen adsorption desorption and the pore-size distribution test of porous rich carbon g-C3N4 sample.As seen from the figure, porous g-
The specific surface area of C3N4 sample be 106.049m2g-1,8.58 times of specific surface area relative to pure g-C3N4.Prove porous g-
C3N4 possesses big surface area and high hole voidage.Therefore resulting in porous g-C3N4 photochemical catalyst shows better photocatalysis
Activity.
The porous richness carbon g-C3N4 photochemical catalyst of embodiment 3 (modified presoma g-C3N4) application
Porous rich carbon g-C3N4 photochemical catalyst prepared by embodiment 2 carries out photocatalyst material performance test.
Method is as follows: weighing pure g-C3N4 respectively and porous richness carbon richness carbon g-C3N4 0.05g is added to 50ml mass fraction
In the rhodamine B solution of 10mg/L, to be protected from light stirring 30min, come into full contact with it.Using 300W xenon lamp as light source, photoelectric current tune
The position 20mA is saved, light intensity center is adjusted and is just irradiated to sample surfaces, fixed good position will mix pure g-C3N4 Luo Dan respectively
Bright B solution and the rhodamine B solution for mixing porous rich carbon g-C3N4 are put in below light source, take 2ml rhodamine B every 20 minutes,
By the absorbance test to sample, to prove the degradation situation of rhodamine B.
As a result as shown in figure 8, illumination after twenty minutes, pure g-C3N4 catalyst degradation rate is 17%, and porous rich carbon g-
C3N4 catalyst degradation rate is 83%, embodies the porous richness higher catalytic capability of carbon g-C3N4.
In conclusion having obtained porous rich carbon g-C3N4 with the method that active powdered carbon drives body before modified, this method is obtained
Porous richness carbon g-C3N4 possess big specific surface area, high porosity and high carbon-nitrogen ratio, therefore can be provided more for catalysis reaction
More active sites reduce the transmission range of photo-generate electron-hole, improve the separative efficiency of light induced electron and hole, reduce compound
Rate significantly improves photocatalytic activity under visible light.
Claims (8)
1. a kind of porous rich carbon g-C3N4 photochemical catalyst, which is characterized in that preparation method the following steps are included:
1) 50ml dehydrated alcohol is added in melamine and active powdered carbon, stirring 2h is uniformly mixed, ultrasonic 30min, drying, is obtained
Between product；
2) by intermediate product, grinding, in Muffle furnace, under air environment, roasting obtains the g- with amorphous nano carbon particle
C3N4 powder；
3) the g-C3N4 powder that will have amorphous nano carbon particle, after regrinding, in Muffle furnace, under air environment, is moved back
Fire obtains porous rich carbon g-C3N4 photochemical catalyst.
2. a kind of porous rich carbon g-C3N4 photochemical catalyst according to claim 1, which is characterized in that melamine in step 1)
Mass ratio with active powdered carbon is 1:0.01-0.08.
3. a kind of porous rich carbon g-C3N4 photochemical catalyst according to claim 1, which is characterized in that in Muffle furnace in step 2)
Middle maturing temperature is 500 DEG C -550 DEG C, time 4h.
4. a kind of porous rich carbon g-C3N4 photochemical catalyst according to claim 3, which is characterized in that liter when roasting in step 2)
5 DEG C of warm rate is per minute.
5. a kind of porous rich carbon g-C3N4 photochemical catalyst according to claim 1, which is characterized in that in Muffle furnace in step 3)
Middle annealing temperature is 460 DEG C -480 DEG C, time 2h.
6. a kind of porous rich carbon g-C3N4 photochemical catalyst according to claim 5, which is characterized in that liter when annealing in step 3)
5 DEG C of warm rate is per minute.
7. a kind of porous richness carbon g-C3N4 photochemical catalyst described in any one of claims 1-6 rhodamine B degradation under visible light
In application.
8. application according to claim 7, which is characterized in that specifically, porous richness carbon richness carbon g-C3N4 is added to sieve
In red bright B solution, it is protected from light stirring, comes into full contact with it；Using 300W xenon lamp as light source, photoelectric current is adjusted to the position 20mA, is adjusted
Light intensity center is just irradiated to sample surfaces, and the rhodamine B solution for mixing porous rich carbon g-C3N4 is put in light source by fixed good position
Lower section is tested, it was demonstrated that the degradation of rhodamine B by the absorbance to sample.
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|---|---|---|---|---|
| CN110560140A (en) * | 2019-09-29 | 2019-12-13 | 辽宁大学 | Weak luminescence g-C3N4Photocatalyst and preparation method and application thereof |
| CN110721718A (en) * | 2019-10-14 | 2020-01-24 | 南昌航空大学 | Preparation method of graphite-phase carbon nitride-doped bismuth molybdate binary photocatalyst with good performance |
| CN111085233A (en) * | 2019-12-25 | 2020-05-01 | 四川大学 | AC/g-C3N4Composite photocatalytic material and preparation method thereof |
| CN111822031A (en) * | 2020-07-31 | 2020-10-27 | 江苏大学 | Carbon-rich carbon nitride nanotube photocatalyst and preparation method and application thereof |
| CN113578300A (en) * | 2021-07-15 | 2021-11-02 | 华南理工大学 | Ag-g-C3N4Biological carbon composite material and preparation method and application thereof |
| CN113976157A (en) * | 2021-10-19 | 2022-01-28 | 新乡医学院 | Three-dimensional porous in-situ carbon-doped g-C3N4Process for preparing catalyst |
| CN114289053A (en) * | 2021-12-23 | 2022-04-08 | 北京中海前沿材料技术有限公司 | Photocatalyst and preparation method and application thereof |
| CN114904549A (en) * | 2022-05-17 | 2022-08-16 | 深圳市康弘智能健康科技股份有限公司 | Porous nano material for adsorbing and photocatalytic degradation of formaldehyde and preparation method thereof |
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| CN111822031B (en) * | 2020-07-31 | 2023-09-22 | 江苏大学 | Carbon-rich carbon nitride nano tube photocatalyst, preparation method and application |
| CN113578300A (en) * | 2021-07-15 | 2021-11-02 | 华南理工大学 | Ag-g-C3N4Biological carbon composite material and preparation method and application thereof |
| CN113976157A (en) * | 2021-10-19 | 2022-01-28 | 新乡医学院 | Three-dimensional porous in-situ carbon-doped g-C3N4Process for preparing catalyst |
| CN114289053A (en) * | 2021-12-23 | 2022-04-08 | 北京中海前沿材料技术有限公司 | Photocatalyst and preparation method and application thereof |
| CN114904549A (en) * | 2022-05-17 | 2022-08-16 | 深圳市康弘智能健康科技股份有限公司 | Porous nano material for adsorbing and photocatalytic degradation of formaldehyde and preparation method thereof |
| RU2791361C1 (en) * | 2022-05-19 | 2023-03-07 | Федеральное государственное автономное образовательное учреждение высшего образования "Южно-Уральский государственный университет (национальный исследовательский университет)" ФГАОУ ВО "ЮУрГУ (НИУ)" | Method for producing a photocatalyst for water decomposition reaction based on molecular doped carbon nitride |
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