CN107930611A - A kind of carbon dots titanium dioxide hollow microballoon composite nano-catalyst and preparation method and application - Google Patents
A kind of carbon dots titanium dioxide hollow microballoon composite nano-catalyst and preparation method and application Download PDFInfo
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- CN107930611A CN107930611A CN201711044938.3A CN201711044938A CN107930611A CN 107930611 A CN107930611 A CN 107930611A CN 201711044938 A CN201711044938 A CN 201711044938A CN 107930611 A CN107930611 A CN 107930611A
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 73
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 35
- 239000011943 nanocatalyst Substances 0.000 title claims abstract description 34
- 239000002131 composite material Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000000975 dye Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000001699 photocatalysis Effects 0.000 claims abstract description 12
- 238000006731 degradation reaction Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 230000015556 catabolic process Effects 0.000 claims abstract description 10
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims abstract description 10
- 239000012265 solid product Substances 0.000 claims abstract description 6
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 239000012467 final product Substances 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000006555 catalytic reaction Methods 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 abstract description 13
- 238000007146 photocatalysis Methods 0.000 abstract description 5
- 238000013033 photocatalytic degradation reaction Methods 0.000 abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract description 2
- 238000005286 illumination Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 239000003381 stabilizer Substances 0.000 abstract description 2
- 229960005196 titanium dioxide Drugs 0.000 description 31
- 239000000243 solution Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 239000004005 microsphere Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 235000015165 citric acid Nutrition 0.000 description 5
- 229910003074 TiCl4 Inorganic materials 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 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 description 4
- 229940012189 methyl orange Drugs 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 3
- 241000790917 Dioxys <bee> Species 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000011806 microball Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- STZCRXQWRGQSJD-UHFFFAOYSA-M sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate Chemical compound [Na+].C1=CC(N(C)C)=CC=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
-
- B01J35/39—
-
- B01J35/51—
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
-
- 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
Abstract
The present invention relates to a kind of preparation method of carbon dots titanium dioxide hollow microballoon composite nano-catalyst, this method is using citric acid and titanium tetrachloride as raw material, and using water as solvent, 3~24h is reacted at 120~200 DEG C, collects solid product, dry, to obtain the final product.The present invention protects the catalyst that the method is prepared, and application of the catalyst in Photocatalytic Activity for Degradation at the same time.Carbon dots titanium dioxide hollow microballoon composite nano-catalyst provided by the invention is prepared by simple and convenient, environmentally protective without the one-step method of additional reducing agent and stabilizer；Obtained nanocatalyst property is stable, functional, has important industrial application value.Obtained composite nano-catalyst is used for Photocatalytic Activity for Degradation organic dyestuff, the Photocatalytic Degradation Property having under visible light illumination to organic dyestuff can be reached, therefore there is important application value in photocatalysis field.
Description
Technical field
The present invention relates to the catalyst of Photocatalytic Activity for Degradation, and in particular to carbon dots/titanium dioxide hollow microballoon is compound
One one step preparation method of nanocatalyst and application.
Background technology
2004, scientist was found that a kind of new carbon nanometer material first when purifying single-layer carbon nano-tube by electrophoresis
Material, and a nanometer carbon dots is named as, it is also referred to as carbon dots (C-Dots).Carbon is typically a kind of not luminescent material of black, but nano-sized carbon
Point but has very strong fluorescent effect, therefore the fluorescent carbon point that is otherwise known as.It is very abundant cheap to prepare the raw material of carbon dots, it is small to arrive
The carbon containing small molecule such as amino acid, carbohydrate, organic acid, can become greatly the raw material of carbon dots, very to macromoleculars such as protein, polypeptides
It can be used for the preparation of carbon dots to edible products such as milk, meats.
In recent years, the scientific research of related carbon dots preparation, performance and application aspect achieved huge progress.Due to carbon dots
There is water solubility, chemical inertness, hypotoxicity and biocompatibility, therefore cause the great interest of people, gradually into
For a dazzling nova in carbon material family.Nowadays, carbon dots has been with a wide range of applications, can be used for biology into
The fields such as picture, medicament transport, heavy metal separation, photocatalysis.Similar to semiconductor-quantum-point, substantial amounts of hole is contained on carbon dots surface
And electronics, electron donor and electron acceptor can be used as at the same time, and combine its excellent up-conversion luminescence performance therefore in light
There is potential application value in terms of catalytic degradation.For example, a seminar had in the carbon dots material for finding N doping in 2015
The performance of up-conversion luminescence, has inspired the light of short wavelength under the excitation of long wavelength.
In photocatalysis field, titanium dioxide, a kind of n-type semiconductor, band gap at room temperature is about 3.2eV, is currently
One of most promising photochemical catalyst for being capable of degradating organic dye.Among microstructure, titanium dioxide hollow microballoon due to
Its low-density, high ratio surface region and good catalytic activity have received more and more attention.But for the low suction of light
Yield but limits its application in photocatalysis field.By the carbon dots material with upper conversion performance and titanium dioxide hollow microballoon
Its photocatalytic degradation capability in visible region can effectively be lifted by being integrated as composite nano-catalyst.
The content of the invention
A kind of the defects of the purpose of the present invention is overcoming the prior art, there is provided carbon dots titanium dioxide hollow microballoon composite Nano
The preparation method of catalyst.The preparation method of carbon dots titanium dioxide hollow microballoon composite nano-catalyst provided by the invention uses
One-step method, it is not necessary to first prepare the presoma of titanium dioxide hollow microballoon, it is not required that modify carbon dots.In addition this method
Carbon dots can be entrained in inside sky microballoon so as to improve its catalytic activity in prepared product.Preparation method letter provided by the invention
It is single, efficient, it is of great significance to preparing catalyst.
Specifically, method provided by the invention is with citric acid and titanium tetrachloride TiCl4For raw material, using water as solvent,
3~24h is reacted at 120~200 DEG C, collects solid product, it is dry, to obtain the final product.
In order to ensure raw material can form micro-sphere structure in the case where that need not prepare presoma or be modified and have
Good catalytic activity, the mass ratio of citric acid and titanium tetrachloride is (5~10) to the present invention preferably in the raw material:(1~4),
More preferably (6~8):(1~2).
In order to ensure the micro-sphere structure can be smoothly molded and have good catalytic activity, the present invention is preferably described anti-
It is to react 3h at 200 DEG C to answer condition.
In order to ensure two kinds of raw materials come into full contact with reaction, two kinds of raw materials are preferably first substantially soluble in water by the present invention respectively,
The aqueous solution of two kinds of raw materials is mixed again, is reacted.
As a kind of actual application scheme, citric acid is preferably dissolved in deionized water by the present invention is made mass fraction as 1
Titanium tetrachloride, is dissolved in the solution for being made that mass fraction is 15~20% in deionized water by~5% solution.According to aforementioned proportion
After wiring solution-forming, two kinds of raw material contacts and then fully reaction at high operating temperatures are more conducive to.When titanium tetrachloride is dissolved in water, it is necessary to
It is sufficiently stirred.
The present invention first fully washs (at least three times) with deionized water and is mixed in removing preferably after solid product is collected
Unreacting material in microballoon, then be dried.In order to make micro-sphere structure more stablize, drying of the present invention is preferably 70
Dry 5~10h at~90 DEG C；Such as：The dry 8h at 80 DEG C.
The carbon dots titanium dioxide that particle diameter is about 1~3 μm, emptying aperture footpath is about 200nm can be prepared in method provided by the invention
Titanium hollow microsphere composite nano-catalyst.Carbon dots/titanium dioxide hollow that the present invention protects the method to be prepared at the same time is micro-
Ball composite nano-catalyst.
Present invention additionally comprises above-mentioned carbon dots titanium dioxide hollow microballoon composite nano-catalyst in Photocatalytic Activity for Degradation
In application.
As a preferred embodiment, the catalyst can be used for Photocatalytic Activity for Degradation organic dyestuff.It is described organic
Dyestuff be this area common dyes, such as methyl orange.
Invention also provides the concrete application method of the catalyst.Specifically, can be in the solution of organic dyestuff
It is middle to add carbon dots/titanium dioxide hollow microballoon composite nano-catalyst provided by the invention, in 20~40 DEG C of temperature, 400~
When stirring reaction 2~15 is small under the conditions of 800nm radiation of visible light, 300~1000r/min of rotating speed, you can.
In order to be smoothed out the catalytic degradation reaction, the carbon dots titanium dioxide hollow microballoon composite nano-catalyst
Mass ratio with organic dyestuff is preferably (1~2):(100~150).
After above-mentioned reaction, organic dyestuff is by fully degraded to solution in colourless.
When the organic dyestuff is methyl orange solution, the solution of the organic dyestuff is using water as solvent.The carbon dots two
Titanium oxide hollow microsphere composite nano-catalyst and the mass ratio of methyl orange are preferably (1.5~2):100.
Carbon dots provided by the invention/titanium dioxide hollow microballoon composite nano-catalyst is by simple and convenient, environmentally protective, no
It is prepared with the one-step method of additional reducing agent and stabilizer；Obtained nanocatalyst property is stable, functional, has
Important industrial application value.Obtained composite nano-catalyst is used for Photocatalytic Activity for Degradation organic dyestuff, Ke Yida
To the Photocatalytic Degradation Property having under visible light illumination to organic dyestuff, therefore there is important application in photocatalysis field
Value.
Brief description of the drawings
Fig. 1 is the scanning electron microscope (SEM) photograph of carbon dots titanium dioxide hollow microballoon composite nano-catalyst prepared by embodiment 1.
Fig. 2 is carbon dots titanium dioxide hollow microballoon composite nano-catalyst X-ray diffraction spectrogram prepared by embodiment 1.
Fig. 3 is the carbon dots titanium dioxide hollow microballoon composite nano-catalyst x-ray photoelectron spectroscopy prepared in embodiment 1
Analyze C 1s spectrograms.
Fig. 4 is degraded figure of the different samples to organic dyestuff methyl orange under visible light in embodiment 2.
Embodiment
Following embodiments are used to illustrate the present invention, but are not limited to the scope of the present invention.It is not specified in embodiment specific
Technology or condition person, carry out according to the described technology of document in the art or condition, or according to product description.It is used
Production firm person is not specified in reagent or instrument, is the conventional products that can be commercially available by regular distributor.
Embodiment 1
Present embodiments provide a kind of carbon dots titanium dioxide hollow microballoon composite nano-catalyst, prepare by the following method and
Into：
2g citric acids are dissolved in 40ml deionized waters, 1h is stirred, it is fully dissolved；By 0.25ml TiCl4(density
About 1.726g/cm3) be dissolved in 5.4ml deionized waters, 1h is stirred, it is fully dissolved；Above two solution is mixed in
3h is reacted at 200 DEG C, collects solid product, 8h is dried after being washed with deionized three times at 80 DEG C, that is, obtains carbon dots dioxy
Change titanium hollow microsphere composite nano-catalyst powder.
Carbon dots titanium dioxide hollow microballoon composite nano-catalyst obtained by the present embodiment is brownish-yellow powder, is suspended in water
Property is stablized, good dispersion, and rapid precipitation soilless sticking.Carbon dots obtained by the present embodiment/titanium oxide hollow microsphere is compound is received
Rice catalyst has stronger for can be by the absorbability of light, energy gap 2.0eV；And particle diameter distribution is uniform, about 1.5
μm or so (as shown in Figure 1).
Carbon dots/titanium dioxide hollow microballoon composite nano-catalyst main body obtained by the present embodiment is pure anatase crystalline form dioxy
Change titanium (as shown in Figure 2), and doped with carbon dots material (as shown in Figure 3).
Embodiment 2
A kind of carbon dots titanium dioxide hollow microballoon composite nano-catalyst is present embodiments provided, its preparation method is with implementing
Example 1 is compared, and is differed only in：TiCl4Dosage be 0.1ml.
Embodiment 3
A kind of carbon dots titanium dioxide hollow microballoon composite nano-catalyst is present embodiments provided, its preparation method is with implementing
Example 1 is compared, and is differed only in：TiCl4Dosage be 0.4ml.
Embodiment 4
A kind of carbon dots titanium dioxide hollow microballoon composite nano-catalyst is present embodiments provided, its preparation method is with implementing
Example 1 is compared, and is differed only in：In 160 DEG C of reactions.
Embodiment 5
A kind of carbon dots titanium dioxide hollow microballoon composite nano-catalyst is present embodiments provided, its preparation method is with implementing
Example 1 is compared, and is differed only in：In 140 DEG C of reactions.
Through relatively understanding, various embodiments above can obtain brownish-yellow powder, wherein, the catalyst that embodiment 1 provides hangs
Float over property in water the most to stablize, good dispersion and rapid precipitation soilless sticking；Embodiment 2~3 provide catalyst stability its
Secondary, the catalyst stability that embodiment 4~5 provides is slightly poor, and agglomeration occurs after placing for a long time.
Embodiment 6
A kind of method of degradating organic dye is present embodiments provided, specifically：
100mg methyl oranges are dissolved in deionized water, the solution of mass fraction 5% is made, take three parts of above-mentioned solution of 40ml,
It is separately added into carbon dots titanium dioxide hollow microballoon composite nano-catalyst (prepared by embodiment 1), the commercialization nano-silica of equivalent
Change titanium and titanium dioxide hollow microballoon (preparation process differs only in be added without citric acid compared with Example 1), in temperature 22
DEG C, when stirring reaction 10 is small under the conditions of 460nm radiation of visible light, rotating speed 500r/min.The degradation property of different catalysts such as Fig. 4
It is shown.
As shown in Figure 4, compared with commercialization nano-titanium dioxide and titanium dioxide hollow microballoon, carbon dots provided by the invention
Titanium dioxide hollow microballoon composite nano-catalyst has optimal degradation to methyl orange.
Although above the present invention is made to retouch in detail with general explanation, embodiment and experiment
State, but on the basis of the present invention, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to claimed
Scope.
Claims (10)
- A kind of 1. preparation method of carbon dots titanium dioxide hollow microballoon composite nano-catalyst, it is characterised in that with citric acid and Titanium tetrachloride is raw material, and using water as solvent, 3~24h is reacted at 120~200 DEG C, collects solid product, dry, to obtain the final product.
- 2. according to the method described in claim 1, it is characterized in that, the mass ratio of the citric acid and titanium tetrachloride for (5~ 10):(1~4), is preferably (6~8):(1~2).
- 3. method according to claim 1 or 2, it is characterised in that the reaction condition is to react 3h at 200 DEG C.
- 4. according to the method described in claim 1, it is characterized in that, citric acid and titanium tetrachloride are first substantially soluble in water respectively In, then two kinds of solution are mixed, reacted；Preferably, citric acid is dissolved in the solution for being made that mass fraction is 1~5% in deionized water, titanium tetrachloride is dissolved in The solution that mass fraction is 15~20% is made in ionized water, then two kinds of solution are mixed, is reacted.
- 5. according to the method described in claim 1, it is characterized in that, the solid product is first fully washed again with deionized water It is dried.
- 6. method according to claim 1 or 5, it is characterised in that the drying be specially dry 5 at 70~90 DEG C~ 10h。
- 7. the carbon dots titanium dioxide hollow microballoon composite Nano catalysis that claim 1~6 any one the method is prepared Agent.
- 8. the answering in Photocatalytic Activity for Degradation of carbon dots titanium dioxide hollow microballoon composite nano-catalyst described in claim 7 With.
- 9. application according to claim 8, it is characterised in that the object of the degraded is organic dyestuff.
- A kind of 10. method of degradating organic dye, it is characterised in that added in the solution of organic dyestuff described in claim 7 Carbon dots titanium dioxide hollow microballoon composite nano-catalyst, in 20~40 DEG C of temperature, 400~800nm radiation of visible light, rotating speed When stirring reaction 2~15 is small under the conditions of 300~1000r/min, you can.
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| CN111484433A (en) * | 2019-01-28 | 2020-08-04 | 中国石油化工股份有限公司 | Process for oxidizing acetic acid |
| CN111715213A (en) * | 2019-03-20 | 2020-09-29 | 东北林业大学 | CQDs/Mn (0H) prepared from coreopsis2And applications thereof |
| CN114177200A (en) * | 2021-12-02 | 2022-03-15 | 中南大学 | HABT-C nano material and preparation and application thereof |
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| CN111484433A (en) * | 2019-01-28 | 2020-08-04 | 中国石油化工股份有限公司 | Process for oxidizing acetic acid |
| CN111715213A (en) * | 2019-03-20 | 2020-09-29 | 东北林业大学 | CQDs/Mn (0H) prepared from coreopsis2And applications thereof |
| CN110586060A (en) * | 2019-09-25 | 2019-12-20 | 江南大学 | Composite photocatalyst with oxidation-reduction performance and preparation method thereof |
| CN114177200A (en) * | 2021-12-02 | 2022-03-15 | 中南大学 | HABT-C nano material and preparation and application thereof |
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