CN106975511A - A kind of MoS2/C60/g‑C3N4Composite photo-catalyst and preparation method thereof - Google Patents
A kind of MoS2/C60/g‑C3N4Composite photo-catalyst and preparation method thereof Download PDFInfo
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- 229910052982 molybdenum disulfide Inorganic materials 0.000 title claims abstract description 50
- 229910052961 molybdenite Inorganic materials 0.000 title claims abstract description 49
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 21
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- 239000003054 catalyst Substances 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000011259 mixed solution Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 229920000877 Melamine resin Polymers 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 235000019441 ethanol Nutrition 0.000 claims description 4
- 230000006798 recombination Effects 0.000 claims description 4
- 238000005215 recombination Methods 0.000 claims description 4
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 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
- 238000012856 packing Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 235000015393 sodium molybdate Nutrition 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical compound O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 claims description 2
- 239000011684 sodium molybdate Substances 0.000 claims description 2
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000006731 degradation reaction Methods 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract description 4
- 238000006555 catalytic reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 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 abstract description 3
- 229940043267 rhodamine b Drugs 0.000 abstract description 3
- 238000005286 illumination Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000000975 co-precipitation Methods 0.000 abstract 1
- 230000001699 photocatalysis Effects 0.000 description 10
- 238000007146 photocatalysis Methods 0.000 description 10
- 238000001035 drying Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000003760 magnetic stirring Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 125000005909 ethyl alcohol group Chemical group 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002173 high-resolution transmission electron microscopy Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 238000004776 molecular orbital Methods 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000002086 nanomaterial Substances 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
- 230000000737 periodic effect Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 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
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- 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
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- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of MoS2/C60/g‑C3N4Composite photocatalyst material and preparation method thereof, belongs to nano-photocatalyst material technical field;The MoS that the present invention is prepared with hydro-thermal method2With C60With g C3N4It is combined with coprecipitation, forms the nano-complex with sheet-like morphology, middle MoS in the compound2Shared mass ratio is 3%~9%, C60With g C3N4Mass ratio is 1:1, by test, it compares MoS under visible light illumination2、C60With g C3N4Catalytic efficiency be significantly improved, 6%MoS2/C60/g‑C3N4Through radiation of visible light 70min rhodamine B degradation rates up to 100%.Preparation method process employed in the present invention is simple and easy to control, easy to operate, cost is low, product visible light catalysis activity is high.
Description
Technical field
The invention belongs to nano-photocatalyst material technical field.
Background technology
Graphite phase carbon nitride (g-C3N4) as a kind of carbon-based material, it is wide with preparing raw material source, it is cheap, prepare
Method is simple and the features such as being easy to industrialization.As visible light catalyst its have adjustable electronic structure and good physics and
Chemical stability.Because its energy gap is 2.70eV, visible photocatalysis water system can be absorbed by excited by visible light
Hydrogen;However, g-C3N4Also the raising that have impact on its photocatalysis performance is had disadvantages that, particularly higher electron-hole recombination rate,
Its photocatalysis efficiency is seriously reduced, for improving g-C3N4Photocatalysis performance, it is always the neck to improve its electron hole separation rate
The emphasis of domain research.
MoS2Laminated structure has wide application in terms of electrochemistry, is used as well-known production hydrogen catalyst, molybdenum disulfide
It is considered as preferable catalyst, is widely used in the fields such as photocatalysis, sensing.
Though two kinds of materials can serve as catalysis material using how further to improve its photocatalysis efficiency and be
Important topic urgently to be resolved hurrily at present.
The content of the invention
In view of the above-mentioned problems, the present invention proposes a kind of MoS2/C60/g-C3N4Composite photo-catalyst, make use of closed shell structure
C60The unique Electronic Performance being had.Known C60Closed shell structure by 30 bonding molecular orbitals and 60 pi-electrons, this
Plant structure and be beneficial to effective electro transfer.C60Unique texture allow it as an outstanding electron acceptor, effectively draw
Quick Photoinduced Charge separation and relatively slow charge recombination are played, then can improve g-C3N4Electron hole separation rate, this is combined
Due to MoS in structure2Implantation make g-C3N4Interlamellar spacing becomes big, effectively the ratio surface of increase catalyst.And due to MoS2、C60
And g-C3N4Between form hetero-junctions, improve the separative efficiency of optical charge, be effectively improved photocatalysis efficiency.
MoS2/C60/g-C3N4Composite photo-catalyst, middle MoS2Shared mass ratio is 3%~9%, C60With g-C3N4Mass ratio
For 1:1;The composite catalyst is sheet-like morphology, the g-C for being 50~70nm as 1 μm, thickness using size in composite construction3N4For base
Bottom, successively in its surface recombination C60It is 200~500nm with size, thickness is 50~80nm sheet MoS2Obtain.
The preparation method of the composite photo-catalyst is specific as follows:
1) hydro-thermal method prepares MoS2;
2) g-C is prepared3N4;
3)C60/g-C3N4The preparation of compound:According to mass ratio 1:1 weighs g-C3N4With C60, by the two according to 5mg/mL's
Ratio is scattered in absolute ethyl alcohol, is continued 12h after being uniformly dispersed under additional stirring condition, is subsequently placed in 80~100 DEG C of conditions
Lower drying, obtains C60/g-C3N4Compound;
4)MoS2/C60/g-C3N4The preparation of compound:0.9~2.7:30 ratios weigh the MoS of hydro-thermal method preparation2And C60/
g-C3N4Compound, the two is scattered in absolute ethyl alcohol according to 1.5~5mg/mL ratio, in additional stirring after being uniformly dispersed
Under the conditions of continue 3h, under the conditions of being subsequently placed in 80~100 DEG C dry, obtain MoS2/C60/g-C3N4Compound;
Step 1) in hydro-thermal method prepare MoS2Comprise the following steps that:
It is 0.37~0.38 according to mass ratio:1 ratio weighs sodium molybdate and thiocarbamide is dissolved in deionized water, is completely dissolved
More than ultrasonic disperse 30min again afterwards, it is 0.19~0.20mol/L to obtain molybdic acid na concn in mixed solution, mixed solution;Will be mixed
Close solution to be transferred in reactor, packing density is 65%, room temperature is naturally cooled to after reaction 24h under the conditions of 240 DEG C;Spend from
After sub- water and ethanol are washed respectively, dried under the conditions of 60 DEG C, obtain sheet MoS2。
Step 2) prepare g-C3N4Comprise the following steps that:By melamine using 2.0~2.3 DEG C/min heating rate as
550 DEG C are heated to from room temperature, and 4h is incubated in 550 DEG C, is then cooled to identical speed after room temperature and obtains pale yellow powder
The g-C of shape3N4。
Beneficial effects of the present invention:
Preparation process of the invention is simple and easy to control, easy to operate, cost is low, product visible light catalysis activity is high, wherein,
6%MoS2/C60/g-C3N4Through radiation of visible light 70min rhodamine B degradation rates up to 100%.In the preparation of composite nano materials
There is vast potential for future development with application field.
Brief description of the drawings
Fig. 1 C60With prepared MoS2、g-C3N4、MoS2/C60、MoS2/g-C3N4、C60/g-C3N4And MoS2/C60/g-
C3N4X-ray diffraction (XRD) spectrogram of composite photo-catalyst;
C prepared by Fig. 260、MoS2、g-C3N4、MoS2/C60、MoS2/g-C3N4、C60/g-C3N4And MoS2/C60/g-
C3N4Fourier infrared spectrum (FT-IR) figure of composite photo-catalyst;
MoS prepared by Fig. 32/C60/g-C3N4X-ray photoelectron power spectrum (XPS) figure of composite photo-catalyst;
Composite catalyst MoS prepared by Fig. 42/C60/g-C3N4Transmission electron microscope (TEM) photo;
Composite catalyst MoS prepared by Fig. 52/C60/g-C3N4High-resolution-ration transmission electric-lens (HRTEM) photo;
C prepared by Fig. 660、g-C3N4、MoS2/C60、MoS2/g-C3N4、C60/g-C3N4And MoS2/C60/g-C3N4It is multiple
The photocatalytic activity curve map of closing light catalyst rhodamine B degradation under visible light conditions.
Embodiment
Technical solution of the present invention is further explained and illustrated in the way of specific embodiment below.
Embodiment 1
1.MoS2Preparation:Using hydrothermal synthesis method, 0.15g sodium molybdates and 0.4g thiocarbamides are codissolved in 32.5mL deionizations
In water, 30min is stirred on magnetic stirring apparatus.Ultrasonic disperse 30min again after stirring terminates.Solution after ultrasound is loaded into liner
In polytetrafluoroethylene (PTFE) stainless steel cauldron, packing density is 65%, is heated to 240 DEG C and keeps naturally cooling to room temperature after 24h.With
Deionized water and ethanol are washed after 3 times respectively, and product is dried under the conditions of 60 DEG C.
2.g-C3N4Preparation:Melamine is used for raw material, takes 24mmol melamines in crucible, crucible is put into
In Muffle furnace, 550 DEG C are heated to by 2.0-2.3 DEG C/min of heating rate, 4h is incubated in 550 DEG C, then with identical speed
It is down to after initial temperature and takes out crucible, obtains the g-C of pale yellow powder shape3N4。
3.C60/g-C3N4Preparation:By 50mg C60With 50mg g-C3N4Ultrasonic 30min is scattered in 20mL absolute ethyl alcohols,
Stirred on magnetic stirring apparatus after 12h, in 80 DEG C of drying in drying box, produce C60/g-C3N4。
4.MoS2/C60/g-C3N4Preparation:By 0.9mg MoS2With 30mg C60/g-C3N4Ultrasonic 1h be scattered in 20mL without
In water-ethanol, stirred on magnetic stirring apparatus after 3h, in 80 DEG C of drying in drying box, produce MoS2/C60/g-C3N4。
Structure and morphology characterization
As shown in figure 1, being C60With prepared MoS2、g-C3N4、MoS2/C60、MoS2/g-C3N4、C60/g-C3N4And
MoS2/C60/g-C3N4The XRD of composite photo-catalyst, as can be seen from Figure 1 MoS2/C60/g-C3N4The XRD spectrum of composite photo-catalyst
In contain molybdenum sulfide, g-C3N4And C60Characteristic peak, and do not occur other miscellaneous peaks, it was demonstrated that only include three of the above thing in compound
Matter.
As shown in Fig. 2 all C60Characteristic peak (1427cm-1、1180cm-1、575cm-1、528cm-1) and g-C3N4's
Characteristic peak (3168cm-1、1635cm-1、1574cm-1、1420cm-1、1328cm-1、1253cm-1、812cm-1) can be from MoS2/
C60/g-C3N4It is observed that in collection of illustrative plates.
As shown in figure 3, C 1s two peaks are respectively in 283.9eV (C-C) and 287.6eV (N-C=N).287.6eV with
C is understood 288.0eV being close60To g-C3N4N-C=N have little to no effect.N 1s peak appears in 398.2eV (C=N-
C).Mo 3d peak understands that the existence form of molybdenum is Mo in 228.2eV and 231.4eV respectively4+, S 2p peak appears in 161.5eV
Knowable existence form is S2 2-。
Fig. 4 is prepared MoS2/C60/g-C3N4The TEM photos of sample, its pattern is sheet.It can be measured in Fig. 5
Crystal striped distance respectively 0.366nm and 0.63nm, corresponds to g-C respectively3N4And MoS (002)2(002) interplanar distance, by
This can be seen that g-C3N4And MoS2Success is compound together, according to Fig. 4 it can be seen that transparent C60Answered with the compound of sheet
It is combined.
Photocatalytic activity checking test:
The photocatalysis performance of prepared sample is evaluated using Rh B as model compound.In an experiment, exist
100mL 0.01mmolL-1Rh B solutions in add and 0.01g catalyst and be put into glass reactor.Using 500W xenon lamps (λ
> 420nm) irradiation.420nn wave filters are inserted between lamp and sample to remove ultraviolet light (λ < 420nm).In visible illumination
Before by suspension strong agitation 30 minutes in the dark.Then solution is exposed to radiation of visible light under magnetic stirring.
Given time interval, periodic collection and analysis 4mL suspension.Rh B concentration is carried out by UV-2550 ultraviolet spectrometers
Analysis, absorption spectrum intensity is recorded when the maximum wave band of ultraviolet-visible is 552nm.
As a result as shown in fig. 6, prepared MoS2/C60/g-C3N4Catalyst is compared with pure phase C60、g-C3N4、C60/g-C3N4、
MoS2/C60And MoS2/g-C3N4Photocatalysis efficiency is improved largely, wherein 6%MoS2/C60/g-C3N4Rh B photocatalysis efficiencies
Highest, through radiation of visible light 70min Rh B degradation rates up to 100%.
Claims (4)
1. a kind of MoS2/C60/g-C3N4Composite photo-catalyst, it is characterised in that MoS in the composite photo-catalyst2Shared mass ratio
For 3%~9%, C60With g-C3N4Mass ratio is 1:1;The composite catalyst be sheet-like morphology, composite construction using size as 1 μm,
Thickness is 50~70nm g-C3N4For substrate, successively in its surface recombination C60With size be 200~500nm, thickness be 50~
80nm sheet MoS2Obtain.
2. MoS as claimed in claim 12/C60/g-C3N4The preparation method of composite photo-catalyst, is comprised the following steps that:
1) hydro-thermal method prepares MoS2;
2) g-C is prepared3N4;
3)C60/g-C3N4The preparation of compound:According to mass ratio 1:1 weighs g-C3N4With C60, by the two ratio according to 5mg/mL
It is scattered in absolute ethyl alcohol, continues 12h after being uniformly dispersed under additional stirring condition, is done under the conditions of being subsequently placed in 80~100 DEG C
It is dry, obtain C60/g-C3N4Compound;
4)MoS2/C60/g-C3N4The preparation of compound:0.9~2.7:30 ratios weigh the MoS of hydro-thermal method preparation2And C60/g-C3N4
Compound, the two is scattered in absolute ethyl alcohol according to 1.5~5mg/mL ratio, after being uniformly dispersed under additional stirring condition
Continue 3h, dried under the conditions of being subsequently placed in 80~100 DEG C, obtain MoS2/C60/g-C3N4Compound.
3. MoS according to claim 22/C60/g-C3N4The preparation method of composite photo-catalyst, it is characterised in that step
1) hydro-thermal method prepares MoS in2Comprise the following steps that:
It is 0.37~0.38 according to mass ratio:1 ratio weighs sodium molybdate and thiocarbamide is dissolved in deionized water, after being completely dissolved again
More than ultrasonic disperse 30min, it is 0.19~0.20mol/L to obtain molybdic acid na concn in mixed solution, mixed solution;
Mixed solution is transferred in reactor, packing density is 65%, room is naturally cooled to after reaction 24h under the conditions of 240 DEG C
Temperature;After being washed respectively with deionized water and ethanol, dried under the conditions of 60 DEG C, obtain sheet MoS2。
4. MoS according to claim 22/C60/g-C3N4The preparation method of composite photo-catalyst, it is characterised in that step
2) g-C is prepared3N4Comprise the following steps that:
Melamine is heated to 550 DEG C using 2.0~2.3 DEG C/min heating rate as from room temperature, and 4h is incubated in 550 DEG C,
Then the g-C that pale yellow powder shape is obtained after room temperature is cooled to identical speed3N4。
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CN108671955A (en) * | 2018-05-24 | 2018-10-19 | 西京学院 | A kind of photodissociation aquatic products complex hydroformylation catalyst and preparation method thereof |
CN108940332A (en) * | 2018-06-04 | 2018-12-07 | 东北大学 | A kind of high activity MoS2/g-C3N4/Bi24O31Cl10The preparation method of composite photo-catalyst |
CN109225296A (en) * | 2018-08-31 | 2019-01-18 | 中国环境科学研究院 | A kind of visible light-responded photochemical catalyst and preparation method thereof |
KR20200025997A (en) * | 2018-08-30 | 2020-03-10 | 한양대학교 에리카산학협력단 | Composite fiber, manufacturing method thereof, and gas purification system comprising the same |
CN112156186A (en) * | 2020-10-29 | 2021-01-01 | 南京医科大学 | Infrared dye-sensitized carbon nitride ternary heterojunction nano material and preparation method and application thereof |
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CN108940332B (en) * | 2018-06-04 | 2020-12-15 | 东北大学 | High-activity MoS2/g-C3N4/Bi24O31Cl10Preparation method of composite photocatalyst |
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