CN108262054A - A kind of preparation method of silver vanadate/nitride porous carbon heterojunction composite photocatalyst - Google Patents
A kind of preparation method of silver vanadate/nitride porous carbon heterojunction composite photocatalyst Download PDFInfo
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- 239000002131 composite material Substances 0.000 title claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 21
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 21
- RAVDHKVWJUPFPT-UHFFFAOYSA-N silver;oxido(dioxo)vanadium Chemical compound [Ag+].[O-][V](=O)=O RAVDHKVWJUPFPT-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- XSNQEMWVLMRPFR-UHFFFAOYSA-N silver nitride Chemical compound [N-3].[Ag+].[Ag+].[Ag+] XSNQEMWVLMRPFR-UHFFFAOYSA-N 0.000 title claims description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000001556 precipitation Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 21
- 239000006185 dispersion Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 17
- 239000008367 deionised water Substances 0.000 claims description 15
- 229910021641 deionized water Inorganic materials 0.000 claims description 15
- 238000013019 agitation Methods 0.000 claims description 9
- 150000004767 nitrides Chemical class 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 7
- 229920000877 Melamine resin Polymers 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 5
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 5
- 229910000166 zirconium phosphate Inorganic materials 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- -1 SBA-15 Substances 0.000 claims description 3
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000005864 Sulphur Substances 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 229910052573 porcelain Inorganic materials 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- CMZUMMUJMWNLFH-UHFFFAOYSA-N sodium metavanadate Chemical compound [Na+].[O-][V](=O)=O CMZUMMUJMWNLFH-UHFFFAOYSA-N 0.000 claims 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000001699 photocatalysis Effects 0.000 abstract description 11
- 239000004098 Tetracycline Substances 0.000 abstract description 9
- 229960002180 tetracycline Drugs 0.000 abstract description 9
- 229930101283 tetracycline Natural products 0.000 abstract description 9
- 235000019364 tetracycline Nutrition 0.000 abstract description 9
- 150000003522 tetracyclines Chemical class 0.000 abstract description 9
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 abstract description 8
- 229940012189 methyl orange Drugs 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 7
- 238000007146 photocatalysis Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 229910002804 graphite Inorganic materials 0.000 abstract description 4
- 239000010439 graphite Substances 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 3
- 238000013033 photocatalytic degradation reaction Methods 0.000 abstract description 3
- 229910052709 silver Inorganic materials 0.000 abstract description 3
- 239000004332 silver Substances 0.000 abstract description 3
- WQEVDHBJGNOKKO-UHFFFAOYSA-K vanadic acid Chemical compound O[V](O)(O)=O WQEVDHBJGNOKKO-UHFFFAOYSA-K 0.000 abstract description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- DTPQZKZONQKKSU-UHFFFAOYSA-N silver azanide silver Chemical compound [NH2-].[Ag].[Ag].[Ag+] DTPQZKZONQKKSU-UHFFFAOYSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- IHIXIJGXTJIKRB-UHFFFAOYSA-N trisodium vanadate Chemical compound [Na+].[Na+].[Na+].[O-][V]([O-])([O-])=O IHIXIJGXTJIKRB-UHFFFAOYSA-N 0.000 description 6
- 238000006731 degradation reaction Methods 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 239000003643 water by type Substances 0.000 description 5
- 229910020700 Na3VO4 Inorganic materials 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000002242 deionisation method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002055 nanoplate Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006862 quantum yield reaction Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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—
-
- 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
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- 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
- C02F2101/38—Organic compounds containing nitrogen
Abstract
The invention belongs to material preparations and the technical field of photocatalysis environmental pollution improvement, and in particular to a kind of silver vanadate/nitride porous carbon heterojunction composite photocatalyst preparation method.Compound uniformly small vanadic acid silver nano-grain photochemical catalyst in porous graphite type carbonitride lamellar structure is made using the simple precipitation method in the present invention.The experiment of photo-catalytic degradation of methyl-orange and tetracycline shows that prepared catalyst has good photocatalytic activity and environmental stability.The raw materials used in the present invention is pollution-free, and method simple process, manufacturing cost is low, and catalyst obtained is highly practical, is easy to mass produce, and has good economic benefit and environmental benefit.
Description
Technical field
The invention belongs to material preparations and the technical field of photocatalysis environmental pollution improvement, and in particular to a kind of vanadic acid
The preparation method of silver/nitride porous carbon heterojunction composite photocatalyst.
Background technology
In recent years, using visible light photocatalysis technology, the organic pollution in environment is eliminated to solve environmental pollution and energy
Source shortage, realizes efficiently using for visible solar radiation, has become the most promising technology in the field of environmental protection
One of.Since solar energy can be utilized directly, Nano semiconductor catalysis material is in sewage disposal, air purification etc.
Application be it is very extensive, solve energy and environmental problem field have broad application prospects.Therefore, it develops visible
The conductor photocatalysis material of optical drive has great importance.
A kind of visible light responsive photocatalyst, monocline scheelite silver vanadate show good visible light catalytic performance.So
And the photocatalytic activity of pure phase silver vanadate is limited by its low quantum yield, needs further to be modified.Graphite phase carbon nitride
Because its smaller optical band gap can absorb more visible ray, and receive significant attention.And porous graphite phase carbon nitride is shown
Go out more excellent physical and chemical performance, there is very big application potential in photocatalysis direction.Therefore, the present invention provides one kind
The preparation method of novel silver vanadate/nitride porous carbon heterojunction composite photocatalyst, it is therefore an objective to be improved by the formation of hetero-junctions
Photogenerated charge detaches and efficiency of transmission, and the hetero-junctions surface of fine dispersion provides more active sites, so as to improve
Photocatalysis performance.
Invention content
The present invention is intended to provide a kind of preparation method of novel silver vanadate/nitride porous carbon heterojunction composite photocatalyst,
The vanadic acid nano grain of silver in the small rule of porous graphite phase carbon nitride area load is made by the precipitation method at room temperature for this method
The heterojunction composite photocatalyst of son.Composite photo-catalyst prepared by the present invention can be applied to catalytic degradation methyl orange under visible ray
And tetracycline.Specifically include following steps：
A kind of preparation method of silver vanadate/nitride porous carbon heterojunction composite photocatalyst, carries out as steps described below：
Step 1, hydro-thermal method prepare mpg-C3N4Photochemical catalyst：
Melamine is scattered in deionized water, ultrasonic disperse is uniform, obtains dispersion liquid A；Dense sulphur is added in into dispersion liquid A
Acid, SBA-15, ultrasonic disperse is uniform, obtains dispersion liquid B；Stainless steel high pressure is packed into after dispersion liquid B is stirred in water bath with thermostatic control
In kettle, constant temperature thermal response is cooled to room temperature after reaction, is washed, and drying obtains powders A；Powders A is placed in porcelain crucible,
It is placed in tube furnace to be calcined, is cooled to room temperature taking-up product to the end of calcination, obtains powder B；Powder B is soaked with hydrofluoric acid
Stain is washed, and drying obtains mpg-C3N4Photochemical catalyst saves backup.
Ag is made in step 2, the precipitation method3VO4/mpg-C3N4Composite material：
Mpg-C prepared by step 13N4It is scattered in deionized water, ultrasonic disperse is uniform, obtains dispersion liquid A；To dispersion liquid A
Middle addition silver nitrate, ultrasonic disperse is uniform, obtains dispersion liquid B；Sodium vanadate is dissolved in deionized water, obtains solution A；It will
Solution A is slowly dropped into dispersion liquid B, magnetic agitation, is washed, and drying obtains silver vanadate/nitride porous carbon hetero-junctions complex light
Catalyst.
In step 1, melamine, the concentrated sulfuric acid, SBA-15, deionized water amount ratio be 2g：0.28g：1g：20mL.
In step 1, water bath with thermostatic control temperature is 70 DEG C, and constant temperature heating reaction temperature is 100 ~ 160 DEG C, constant temperature time 12h.
In step 1, the calcining manners are that constant temperature keeps 4h at 550 DEG C, and calcination heating rate is 2.3 DEG C/min.
In step 1, hydrofluoric acid concentration is 5 wt%.
In step 1, the drying temperature condition is 50 ~ 60 DEG C, and the time is 10 ~ 12h.
In step 2, mpg-C3N4, silver nitrate, sodium vanadate and deionized water amount ratio be 0.244 ~ 2.195g：2g：
2g：40~50mL.
In step 2, the magnetic agitation time is 4h.
In step 2, the drying temperature condition is 50 ~ 60 DEG C, and the time is 10 ~ 12h.
Silver vanadate produced by the present invention/nitride porous carbon heterojunction composite photocatalyst is for catalytic degradation under visible light
Methyl orange and tetracycline.
Beneficial effects of the present invention are：
（1）The present invention prepares silver vanadate/nitride porous carbon complex for the first time, because its is of low cost, non-toxic pollution-free, easily prepares
Less energy consumption has good application prospect in terms of environmental pollution and energy crisis is solved, can be mass-produced.
（2）Silver vanadate/nitride porous carbon complex can be as the visible-light photocatalyst of function admirable.Small silver vanadate
Nano particle is dispersed on nitride porous carbon surface and forms heterojunction photocatalysis, effectively raises the service life of photo-generated carrier,
The transmission of photogenerated charge is promoted, substantially increases the visible light catalysis activity of catalyst, and with good stability, it can
To recycle at least five times, therefore there is very wide prospect in the field of photocatalytic applications.
（3）Suspension characteristic of the photochemical catalyst system in Photocatalytic Degradation Process is also effectively raised to visible light source
Utilization rate, can degrade the drug tetracycline for being extremely difficult to degrade, to having great significance in terms of environmental improvement.
Description of the drawings
The transmission electron microscope picture of samples of the Fig. 1 prepared by embodiment 1, A Ag3VO4, B mpg-C3N4, C Ag3VO4/
mpg-C3N4；
Fig. 2 is the XRD spectrum of the sample prepared by embodiment 1；
Fig. 3 is that the transient photocurrents of the sample prepared by embodiment 1 respond spectrogram；
Fig. 4 is under visible light illumination to the Photocatalytic Degradation of Methyl Orange design sketch of a concentration of 20mg/L prepared by embodiment 1；
Fig. 5 is under visible light illumination to the tetracycline rate of photocatalytic oxidation figure of a concentration of 35mg/L prepared by embodiment 1.
Specific embodiment
With reference to specific embodiment, the invention will be further described.
Embodiment 1：
Used nitride porous carbon is prepared by the following method to obtain：2 g melamines are dispersed in 20 mL deionizations
Water adds in the 0.28 g concentrated sulfuric acids, adds 1 g SBA-15, ultrasonic disperse 30min.8h is stirred in 70 DEG C of waters bath with thermostatic control.It will
Mixture is transferred in hydrothermal reaction kettle, then 100 DEG C of reaction 6h rise to 160 DEG C of reaction 6h.It is cooled to room temperature, uses deionization
Water washing, until filtrate is in neutrality, solid, is then transferred in tube furnace, in N by dry 10h in 60 DEG C of baking ovens2Protection
Under with 2.3 DEG C of min-1Rate be warming up to 550 DEG C, at such a temperature react 4 hours.Calcining terminates to be cooled to room temperature, and stops
It is passed through N2, powder is taken out, impregnates for 24 hours to remove the template of SBA-15 with the HF of 5 wt%.It is washed repeatedly with deionized water, and
Dry 12h, obtains product in 60 DEG C of baking ovens.It takes out the product and finely ground obtains mpg-C3N4Sample.It is used in embodiment 2 ~ 4
Mpg-C3N4It is prepared using the method for the present embodiment.
Mpg-C prepared by 1.463g steps 13N450 mL deionized waters are dispersed in, ultrasonic 30min adds in 2g AgNO3,
By mixture magnetic agitation 30min.40 mL are contained into 2 g Na3VO4·12H2The aqueous solution of O is slowly dropped into above-mentioned suspension
In, and magnetic agitation 4h.It is washed repeatedly with deionized water, and the dry 12h in 60 DEG C of baking ovens, you can obtain the hetero-junctions
Composite photo-catalyst.
Prepare monomer Ag3VO4：By 2g AgNO3It is dispersed in 50 mL deionized waters, ultrasonic 30min, magnetic agitation 30min.
40 mL are contained into 2 g Na3VO4·12H2The aqueous solution of O is slowly dropped into above-mentioned suspension, and magnetic agitation 4h.Spend from
Sub- water washs repeatedly, and the dry 12h in 60 DEG C of baking ovens, you can obtains monomer Ag3VO4。
TEM in Fig. 1 is the result shows that Ag3VO4Monomer is formed with spheric granules, mpg-C3N4With nano-plates the form of a layered structure
In the presence of the TEM figures of composite material are it can be seen that the two can be coupled effectively；
XRD in Fig. 2 is the result shows that in addition to containing mpg-C in the material of synthesis3N4, also contain Ag3VO4；
In Fig. 3 in transient photocurrents response collection of illustrative plates, hence it is evident that it can be seen that Ag3VO4/mpg-C3N4Composite material is than monomer Ag3VO4With
mpg-C3N4With higher photocurrent response, this illustrates Ag3VO4/mpg-C3N4Composite material has better light induced electron sky
Cave is to separating capacity；
The activity experiment figure for methyl orange of degrading in Fig. 4 can be seen that composite A g3VO4/mpg-C3N4Degradation efficiency it is apparent
Higher than monomer Ag3VO4And mpg-C3N4, the methyl orange of 2h degradable 85%；
The rate experiments figure of degradation tetracycline can be seen that composite A g in Fig. 53VO4/mpg-C3N4Degradation efficiency it is apparent
Higher than monomer Ag3VO4And mpg-C3N4, the tetracycline of 1.5h degradable 83%.
Embodiment 2：
By 0.941g mpg-C3N450 mL deionized waters are dispersed in, ultrasonic 30min adds in 2g AgNO3, mixture magnetic force is stirred
Mix 30min.40 mL are contained into 2 g Na3VO4·12H2The aqueous solution of O is slowly dropped into above-mentioned suspension, and magnetic agitation
4h.It is washed repeatedly with deionized water, and the dry 12h in 60 DEG C of baking ovens, you can obtain the heterojunction composite photocatalyst.
The material under visible light illumination, the methyl orange of 2h degradable 71%, the tetracycline of 1.5h degradable 45%.
Embodiment 3：
By 2.195g mpg-C3N450 mL deionized waters are dispersed in, ultrasonic 30min adds in 2g AgNO3, mixture magnetic force is stirred
Mix 30min.40 mL are contained into 2 g Na3VO4·12H2The aqueous solution of O is slowly dropped into above-mentioned suspension, and magnetic agitation
4h.It is washed repeatedly with deionized water, and the dry 12h in 60 DEG C of baking ovens, you can obtain the heterojunction composite photocatalyst.
The material under visible light illumination, the methyl orange of 2h degradable 78%, the tetracycline of 1.5h degradable 67%.
Claims (7)
1. the preparation method of a kind of silver vanadate/nitride porous carbon heterojunction composite photocatalyst, which is characterized in that according to following steps
It is rapid to carry out：
Step 1, hydro-thermal method prepare mpg-C3N4Photochemical catalyst：
Melamine is scattered in deionized water, ultrasonic disperse is uniform, obtains dispersion liquid A；Dense sulphur is added in into dispersion liquid A
Acid, SBA-15, ultrasonic disperse is uniform, obtains dispersion liquid B；Stainless steel high pressure is packed into after dispersion liquid B is stirred in water bath with thermostatic control
In kettle, constant temperature thermal response is cooled to room temperature after reaction, is washed, and drying obtains powders A；Powders A is placed in porcelain crucible,
It is placed in tube furnace to be calcined, is cooled to room temperature taking-up product to the end of calcination, obtains powder B；Powder B is soaked with hydrofluoric acid
Stain is washed, and drying obtains mpg-C3N4Photochemical catalyst saves backup.
2. Ag is made in step 2, the precipitation method3VO4/mpg-C3N4Composite material：
Mpg-C prepared by step 13N4It is scattered in deionized water, ultrasonic disperse is uniform, obtains dispersion liquid A；Into dispersion liquid A
Silver nitrate is added in, ultrasonic disperse is uniform, obtains dispersion liquid B；Sodium vanadate is dissolved in deionized water, obtains solution A；It will be molten
Liquid A is slowly dropped into dispersion liquid B, magnetic agitation, is washed, and drying obtains silver vanadate/nitride porous carbon hetero-junctions complex light and urges
Agent.
3. a kind of preparation method of silver vanadate according to claim 1/nitride porous carbon heterojunction composite photocatalyst,
It is characterized in that, above-mentioned melamine, the concentrated sulfuric acid, SBA-15, hydrofluoric acid, silver nitrate, sodium vanadate are that analysis is pure, are used
Water is deionized water.
4. a kind of preparation method of silver vanadate according to claim 1/nitride porous carbon heterojunction composite photocatalyst,
Be characterized in that, in step 1, melamine, the concentrated sulfuric acid, SBA-15, deionized water amount ratio be 2g：0.28g：1g：20mL.
5. a kind of preparation method of silver vanadate according to claim 1/nitride porous carbon heterojunction composite photocatalyst,
It is characterized in that, in step 1, water bath with thermostatic control temperature is 70 DEG C, and constant temperature heating reaction temperature is 100 ~ 160 DEG C, constant temperature time 12h.
6. a kind of preparation method of silver vanadate according to claim 1/nitride porous carbon heterojunction composite photocatalyst,
It is characterized in that, in step 1, the calcining manners are that constant temperature keeps 4h at 550 DEG C, and calcination heating rate is 2.3 DEG C/min.
7. a kind of preparation method of silver vanadate according to claim 1/nitride porous carbon heterojunction composite photocatalyst,
It is characterized in that, in step 2, mpg-C3N4, silver nitrate, sodium vanadate and deionized water amount ratio be 0.244 ~ 2.195g：2g：
2g：40~50mL.
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| CN108855191A (en) * | 2018-07-12 | 2018-11-23 | 苏州大学 | Visible light-responded hybrid aerogel and preparation method thereof and the application in exhaust-gas treatment |
| CN109225304A (en) * | 2018-10-25 | 2019-01-18 | 聊城大学 | A kind of visible light-responded Ag4V2O7/g-C3N4The preparation method of catalysis material |
| CN109806900A (en) * | 2019-02-20 | 2019-05-28 | 江苏大学 | A kind of molecular imprinting Ag/Ag3VO4The preparation method and application of/CN nanometer sheet composite photo-catalyst |
| CN109999876A (en) * | 2019-03-28 | 2019-07-12 | 江苏大学 | AgVO3 QDs/rGO/g-C3N4The preparation method and its usage of-pDA@RC photocatalysis membrana |
| CN110182773A (en) * | 2019-07-02 | 2019-08-30 | 济南大学 | 0 dimension vanadate quantum dot/two dimension graphitic carbonaceous nitrogen nanometer sheet preparation |
| CN110280297A (en) * | 2019-01-25 | 2019-09-27 | 贵州医科大学 | One kind is for photodegradative catalyst of antibiotic and preparation method thereof |
| CN111071999A (en) * | 2019-11-20 | 2020-04-28 | 嘉兴学院 | Synthesis method of mesoporous graphite-like carbon nitride nanosheet with low metal content |
| CN112642456A (en) * | 2020-12-11 | 2021-04-13 | 内蒙古科技大学包头师范学院 | Preparation method of composite photocatalyst |
| CN113731411A (en) * | 2021-09-24 | 2021-12-03 | 太原理工大学 | Cu2MoS2O4/Ag2V4O11/g-C3N4Preparation method and application of ternary composite catalyst |
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| CN114192143A (en) * | 2021-12-28 | 2022-03-18 | 福州大学 | Preparation and application of silver tungstate/silver metavanadate composite photocatalyst |
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