CN106362775A - Molybdenum sulfide-based nano-material for high-efficiency photocatalytic preparation of hydrogen and preparation method thereof - Google Patents
Molybdenum sulfide-based nano-material for high-efficiency photocatalytic preparation of hydrogen and preparation method thereof Download PDFInfo
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 239000001257 hydrogen Substances 0.000 title claims abstract description 41
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 41
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 31
- 239000002086 nanomaterial Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 238000005984 hydrogenation reaction Methods 0.000 title 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000010931 gold Substances 0.000 claims abstract description 43
- 229910052737 gold Inorganic materials 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 6
- 239000002105 nanoparticle Substances 0.000 claims abstract 6
- 238000007146 photocatalysis Methods 0.000 claims description 27
- 239000008367 deionised water Substances 0.000 claims description 24
- 229910021641 deionized water Inorganic materials 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 229910052724 xenon Inorganic materials 0.000 claims description 12
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical group [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 12
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 8
- 239000001509 sodium citrate Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- SJUCACGNNJFHLB-UHFFFAOYSA-N O=C1N[ClH](=O)NC2=C1NC(=O)N2 Chemical compound O=C1N[ClH](=O)NC2=C1NC(=O)N2 SJUCACGNNJFHLB-UHFFFAOYSA-N 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 claims description 6
- 235000018417 cysteine Nutrition 0.000 claims description 6
- 239000011684 sodium molybdate Substances 0.000 claims description 6
- 235000015393 sodium molybdate Nutrition 0.000 claims description 6
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 5
- 229920000151 polyglycol Polymers 0.000 claims description 5
- 239000010695 polyglycol Substances 0.000 claims description 5
- 239000002243 precursor Substances 0.000 claims description 5
- YPFNSMAXKZMRPX-UHFFFAOYSA-N [Mo].[S].[Au] Chemical compound [Mo].[S].[Au] YPFNSMAXKZMRPX-UHFFFAOYSA-N 0.000 claims description 2
- FDWREHZXQUYJFJ-UHFFFAOYSA-M gold monochloride Chemical compound [Cl-].[Au+] FDWREHZXQUYJFJ-UHFFFAOYSA-M 0.000 claims 1
- 239000006193 liquid solution Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 abstract description 6
- 230000003197 catalytic effect Effects 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000001808 coupling effect Effects 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 230000031700 light absorption Effects 0.000 abstract 2
- 238000013329 compounding Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 235000013339 cereals Nutrition 0.000 description 32
- 239000000463 material Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002082 metal nanoparticle Substances 0.000 description 4
- 230000002186 photoactivation Effects 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 238000005987 sulfurization reaction Methods 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- BRSVJNYNWNMJKC-UHFFFAOYSA-N [Cl].[Au] Chemical compound [Cl].[Au] BRSVJNYNWNMJKC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 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
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/04—Sulfides
- B01J27/047—Sulfides with chromium, molybdenum, tungsten or polonium
- B01J27/051—Molybdenum
-
- B01J35/39—
-
- B01J35/393—
-
- B01J35/396—
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/04—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
- C01B3/042—Decomposition of water
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/10—Catalysts for performing the hydrogen forming reactions
- C01B2203/1041—Composition of the catalyst
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
The invention relates to a molybdenum sulfide-based nano-material for high-efficiency photocatalytic preparation of hydrogen and a preparation method thereof. According to the invention, gold nano-particles are added into a nano-material of molybdenum sulfide, so the range of visible light absorption is broadened, and a photon-generated carrier is allowed to be transported to the gold nano-particles, which enables the defect of proneness to compounding of the photon-generated carrier of molybdenum sulfide to be further overcome; and the gold nano-particles are in a polymer state, the number of the gold nano-particles is 2 to 6, and distance among the gold nano-particles is 5 to 7 nm. Such short distance enables strong coupling effect to be produced among particles, so light absorption is further improved. Meanwhile, a one-step hydrothermal method is employed for preparation, so the process of complex preparation is omitted and cost is substantially reduced. The nano-material has substantial catalytic effect as a catalyst for photocatalytic preparation of hydrogen and can further promote wide application of the technology of photocatalytic preparation of hydrogen.
Description
Technical field
The invention belongs to catalytic field, be related to a kind of based on the high efficiency photocatalysis of molybdenum sulfide prepare hydrogen nano material and
Preparation method.
Background technology
In order to solve the energy crisis being run at present, photocatalysis are prepared this field of hydrogen and have also been obtained extensive concern
And research.From initial titanium dioxide, cadmium sulfide two-dimensional material widely studied up till now, the nanometer material of hydrogen is prepared in photocatalysis
Material has obtained significant progress.But, the catalytic efficiency of its catalyst still cannot effectively improve.Presently, in light
In the preparation of catalyst, efficient catalyst remains the emphasis of research and development.(x.xie,k.kretschmer,g.wang,
nanoscale 2015,7,13278.y.yan,b.xia,z.xu,x.wang,acs catal.2014,4,1693.).
In recent years, due to highly active hydrogen evolution activity site, molybdenum sulfide receives extensively as good catalyzing manufacturing of hydrogen material
General research.(n.kumar,and j.m.seminario,j.phys.chem.c 2015,119,29157.j.benson,m.li,
S.wang, p.wang, p.papakonstantinou, acs appl.mater.inter.2015,7,14113.) but due to
The absorption region of its visible ray is narrower, simultaneously the easily compound defect of photo-generated carrier, and molybdenum sulfide does not have as catalyzing manufacturing of hydrogen material
It is used widely.(q.liu,x.li,q.he,a.khalil,d.liu,t.xiang,x.wu,l.song,small 2015,
11,5556.).
In order to solve the above problems, researchers metal nanoparticle are incorporated in molybdenum sulfide and make metal nano
Grain/sulfuration molybdenum composite material.Using the plasma effect of metal nanoparticle and the activity of metal nanoparticle and molybdenum sulfide
Contact surface, the absorption region of this composite not only visible ray is wider, and photo-generated carrier is easily separated, improves catalyzing manufacturing of hydrogen
Efficiency.However, the plasma enhancing catalytic efficiency of this complex is still very low.(z.b.zhuang,w.c.sheng,y.s.yan,
adv.mater.2014,26,3950.).
Content of the invention
Technical problem to be solved
In place of the deficiencies in the prior art, present invention proposition is a kind of to prepare hydrogen based on the high efficiency photocatalysis of molybdenum sulfide
The nano material of gas and preparation method.
Technical scheme
A kind of based on the high efficiency photocatalysis of molybdenum sulfide prepare hydrogen nano material it is characterised in that gold nano grain become many
Multimeric state, the quantity of gold nano grain is 2-6, and the distance between gold nano grain and granule are 5-7nm；The mol ratio of element
Being worth for molybdenum sulfur gold is 1.0 1.9 1.2.
A kind of method preparing the described nano material preparing hydrogen based on the high efficiency photocatalysis of molybdenum sulfide it is characterised in that
Step is as follows:
Step 1, the preparation of gold nano grain: the deionized water of the chlorauric acid solution of 200 μ l and 100ml is mixed and heated to
The sodium citrate solution of Deca 700 μ l after boiling, is heated to 100 DEG C and keeps 10-15min to obtain gold nano grain；Described chlorine gold
The concentration of acid solution is 50-100mg/ml；Described sodium citrate solution is 1-5wt%；
Step 2, the preparation of molybdenum sulfide precursor solution: the cysteine of 0.5-1.0g is dissolved in 100ml deionized water,
Obtain solution a；The sodium molybdate of 0.5-1.0g is dissolved in the deionized water of 100ml, obtains solution b；Solution a and solution b is pressed
Volume ratio 2:1 mixes ultrasonic 2-4h and obtains molybdenum sulfide precursor solution；
Step 3: the gold nano grain solution of 40-80ml is mixed with the polyglycol solution of 10-30ml, afterwards with sulfuration
Molybdenum precursor solution is mixed, and carries out the hydro-thermal reaction of 10-24h at 200 DEG C；After reaction terminates, solution is dried, obtains final product
Nano material to gold nano grain and molybdenum sulfide nucleocapsid structure；The concentration of described polyglycol solution is 1%-3%.
A kind of method preparing the nano material of hydrogen described in test based on the high efficiency photocatalysis of molybdenum sulfide, its feature exists
In: the gold nano grain of 0.1g and the nano material of molybdenum sulfide nucleocapsid structure, it is dispersed in 100ml deionized water；Urged using light
Change equipment carries out the test that hydrogen is prepared in photocatalysis；The test condition that hydrogen is prepared in photocatalysis is: light source is xenon lamp, uses electric current control
Xenon source intensity processed, electric current is 15a.
Beneficial effect
A kind of nano material and preparation method preparing hydrogen based on the high efficiency photocatalysis of molybdenum sulfide proposed by the present invention,
In the nano material of molybdenum sulfide, add gold nano grain, not only widen the absorption region of visible ray, photoproduction can also be made simultaneously
Carrier transport, to gold nano grain, solves the easily compound defect of the photo-generated carrier of molybdenum sulfide further.On the other hand, Jenner
Rice grain becomes polymer state, and the quantity of gold nano grain is 2-6, the specially 5-7nm between gold nano grain and granule.As
What this was short specifically makes to produce strong coupling effect between granule and granule, from there being the absorption further increasing light.Meanwhile, its
Preparation process is the method employing a step hydro-thermal, eliminates complicated preparation process, and greatly reduces cost.Due to its work
Prepare the catalyst of hydrogen for photocatalysis, its catalytic effect is notable, can be pushed further into photocatalysis prepare hydrogen technology wide
General application.
Compared with catalyst material hydrogen manufacturing, gold nano grain/molybdenum sulfide core-shell structured nanomaterials that the present invention provides are not
Only there are higher light absorbs, and customer service photo-generated carrier easily compound defect.On the other hand, this composite has more
High plasma strengthens catalytic efficiency.The hydrogen-producing speed of this material is to be currently known one of maximum material of hydrogen-producing speed, reaches
2510.7 every gram of micromoles.
Brief description
Fig. 1 is the transmission electron microscope picture of metal nanoparticle/sulfuration molybdenum composite material.Wherein 0.5 μm is size scale
Fig. 2 is the x-ray energy disperse spectroscopy interpretation of result figure of the nano material of gold nano grain and molybdenum sulfide nucleocapsid structure
Specific embodiment
In conjunction with embodiment, accompanying drawing, the invention will be further described:
Embodiment one:
Take the chlorauric acid solution (50mg/ml) of 200 μ l and the deionized water mixing of 100ml, be heated to boiling, then Deca
The sodium citrate solution (1wt%) of 700 μ l, heating 10min obtains gold nano grain solution.The cysteine taking 0.5g is dissolved in
In 100ml deionized water, obtain solution a.The sodium molybdate taking 0.5-1.0g is dissolved in the deionized water of 100ml, obtains solution b.
2:1 mixes ultrasonic 2-4h to solution a and solution b by volume.40-80ml gold nano grain solution is added to 10ml, 1% poly-
In ethylene glycol solution, mixed with the ultrasonic mixing liquid of above-mentioned a and b afterwards, the hydro-thermal then carrying out 10h at 200 DEG C is anti-
Should.After reaction terminates, solution is dried 24h under 110 degree in an oven, you can obtain gold nano grain/molybdenum sulfide nucleocapsid structure
Nano material.
Characterize: take the nano material of the gold nano grain/molybdenum sulfide nucleocapsid structure of 0.1g, be dispersed in 100ml deionized water
In.Photoactivation equipment carries out the test that hydrogen is prepared in photocatalysis.The test condition that hydrogen is prepared in photocatalysis is: light source is xenon
Lamp, with current control xenon source intensity, electric current is 15a.Maximum hydrogen output is every gram of 2500.7 micromole.
Embodiment two:
Take the chlorauric acid solution (70mg/ml) of 200 μ l and the deionized water mixing of 100ml, be heated to boiling, then Deca
The sodium citrate solution (2wt%) of 700 μ l, heating 15min obtains gold nano grain solution.The cysteine taking 0.7g is dissolved in
In 100ml deionized water, obtain solution a.The sodium molybdate taking 0.7g is dissolved in the deionized water of 100ml, obtains solution b.Solution a
2:1 mixes ultrasonic 2-4h by volume with solution b.50ml gold nano grain solution is added to 20ml, 2% Polyethylene Glycol is molten
In liquid, mixed with the ultrasonic mixing liquid of above-mentioned a and b afterwards, at 200 DEG C, then carried out the hydro-thermal reaction of 16h.Reaction knot
Shu Hou, solution is dried 36h under 110 degree in an oven, you can obtain the nano material of gold nano grain/molybdenum sulfide nucleocapsid structure.
Characterize: take the nano material of the gold nano grain/molybdenum sulfide nucleocapsid structure of 0.1g, be dispersed in 100ml deionized water
In.Photoactivation equipment carries out the test that hydrogen is prepared in photocatalysis.The test condition that hydrogen is prepared in photocatalysis is: light source is xenon
Lamp, with current control xenon source intensity, electric current is 15a.Maximum hydrogen output is every gram of 2510.7 micromole.
Embodiment three:
Take the chlorauric acid solution (80mg/ml) of 200 μ l and the deionized water mixing of 100ml, be heated to boiling, then Deca
The sodium citrate solution (3wt%) of 700 μ l, heating 10min obtains gold nano grain solution.The cysteine taking 0.8g is dissolved in
In 100ml deionized water, obtain solution a.The sodium molybdate taking 0.8g is dissolved in the deionized water of 100ml, obtains solution b.Solution a
2:1 mixes ultrasonic 2-4h by volume with solution b.60ml gold nano grain solution is added to 30ml, 3%, Polyethylene Glycol is molten
In liquid, mixed with the ultrasonic mixing liquid of above-mentioned a and b afterwards, at 200 DEG C, then carried out the hydro-thermal reaction of 18h.Reaction knot
Shu Hou, solution is dried 48h under 110 degree in an oven, you can obtain the nano material of gold nano grain/molybdenum sulfide nucleocapsid structure.
Characterize: take the nano material of the gold nano grain/molybdenum sulfide nucleocapsid structure of 0.1g, be dispersed in 100ml deionized water
In.Photoactivation equipment carries out the test that hydrogen is prepared in photocatalysis.The test condition that hydrogen is prepared in photocatalysis is: light source is xenon
Lamp, with current control xenon source intensity, electric current is 15a.Maximum hydrogen output is every gram of 2503.7 micromole.
Example IV:
Take the chlorauric acid solution (80mg/ml) of 200 μ l and the deionized water mixing of 100ml, be heated to boiling, then Deca
The sodium citrate solution (5wt%) of 700 μ l, heating 10min obtains gold nano grain solution.The cysteine taking 1.0g is dissolved in
In 100ml deionized water, obtain solution a.The sodium molybdate taking 1.0g is dissolved in the deionized water of 100ml, obtains solution b.Solution a
2:1 mixes ultrasonic 4h by volume with solution b.60ml gold nano grain solution is added to 30ml, 3% polyglycol solution
In, mixed with the ultrasonic mixing liquid of above-mentioned a and b afterwards, at 200 DEG C, then carried out the hydro-thermal reaction of 24h.Reaction terminates
Afterwards, solution is dried 48h under 110 degree in an oven, you can obtain the nano material of gold nano grain/molybdenum sulfide nucleocapsid structure.
Characterize: take the nano material of the gold nano grain/molybdenum sulfide nucleocapsid structure of 0.1g, be dispersed in 100ml deionized water
In.Photoactivation equipment carries out the test that hydrogen is prepared in photocatalysis.The test condition that hydrogen is prepared in photocatalysis is: light source is xenon
Lamp, with current control xenon source intensity, electric current is 15a.Maximum every gram of hydrogen rate 2503.7 micromole of product.
Claims (3)
1. a kind of prepare the nano material of hydrogen it is characterised in that gold nano grain becomes poly based on the high efficiency photocatalysis of molybdenum sulfide
Body state, the quantity of gold nano grain is 2-6, and the distance between gold nano grain and granule are 5-7nm；The molar ratio of element
It is 1.0 1.9 1.2 for molybdenum sulfur gold.
2. a kind of method preparing the nano material preparing hydrogen described in claim 1 based on the high efficiency photocatalysis of molybdenum sulfide, its
It is characterised by that step is as follows:
Step 1, the preparation of gold nano grain: the deionized water of the chlorauric acid solution of 200 μ l and 100ml is mixed and heated to boiling
The sodium citrate solution of Deca 700 μ l afterwards, is heated to 100 DEG C and keeps 10-15min to obtain gold nano grain；Described gold chloride is molten
The concentration of liquid is 50-100mg/ml；Described sodium citrate solution is 1-5wt%；
Step 2, the preparation of molybdenum sulfide precursor solution: the cysteine of 0.5-1.0g is dissolved in 100ml deionized water, obtains
Solution a；The sodium molybdate of 0.5-1.0g is dissolved in the deionized water of 100ml, obtains solution b；Solution a and solution b is pressed volume
Mix ultrasonic 2-4h than 2:1 and obtain molybdenum sulfide precursor solution；
Step 3: the gold nano grain solution of 40-80ml is mixed with the polyglycol solution of 10-30ml, afterwards with molybdenum sulfide before
Drive liquid solution to be mixed, carry out the hydro-thermal reaction of 10-24h at 200 DEG C；After reaction terminates, solution is dried, that is, obtains gold
Nano-particle and the nano material of molybdenum sulfide nucleocapsid structure；The concentration of described polyglycol solution is 1%-3%.
3. a kind of method of the nano material preparing hydrogen based on the high efficiency photocatalysis of molybdenum sulfide of test claim 2 preparation,
It is characterized in that: the nano material of the gold nano grain of 0.1g and molybdenum sulfide nucleocapsid structure, it is dispersed in 100ml deionized water；
The test that hydrogen is prepared in photocatalysis is carried out using photocatalysis equipment；The test condition that hydrogen is prepared in photocatalysis is: light source is xenon lamp,
With current control xenon source intensity, electric current is 15a.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107008458A (en) * | 2017-05-10 | 2017-08-04 | 南昌航空大学 | A kind of petal-shaped MoS2Load the preparation method of Au photochemical catalysts |
| CN107598182A (en) * | 2017-07-24 | 2018-01-19 | 西北工业大学 | Gold nano grain molybdenum disulfide gold hypersensitive SERS base materials and preparation method |
| CN110078465A (en) * | 2019-05-27 | 2019-08-02 | 中国科学技术大学 | A kind of carbon-silica-gold composite aerogel and its application |
| CN114146706A (en) * | 2021-12-07 | 2022-03-08 | 嘉兴学院 | Gold/molybdenum oxide composite nano catalyst and preparation method and application thereof |
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| CN114146706A (en) * | 2021-12-07 | 2022-03-08 | 嘉兴学院 | Gold/molybdenum oxide composite nano catalyst and preparation method and application thereof |
| CN114146706B (en) * | 2021-12-07 | 2022-12-20 | 嘉兴学院 | Gold/molybdenum oxide composite nano catalyst and preparation method and application thereof |
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