CN108722398A - A kind of preparation method of bimetallic photo-thermal catalyst - Google Patents
A kind of preparation method of bimetallic photo-thermal catalyst Download PDFInfo
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- CN108722398A CN108722398A CN201810409166.7A CN201810409166A CN108722398A CN 108722398 A CN108722398 A CN 108722398A CN 201810409166 A CN201810409166 A CN 201810409166A CN 108722398 A CN108722398 A CN 108722398A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000002082 metal nanoparticle Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 10
- 230000001699 photocatalysis Effects 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 9
- 230000003647 oxidation Effects 0.000 claims abstract description 9
- 238000007146 photocatalysis Methods 0.000 claims abstract description 8
- 238000002198 surface plasmon resonance spectroscopy Methods 0.000 claims abstract description 8
- 239000004065 semiconductor Substances 0.000 claims abstract description 7
- 150000003934 aromatic aldehydes Chemical class 0.000 claims abstract description 6
- 239000002105 nanoparticle Substances 0.000 claims abstract description 6
- 239000012876 carrier material Substances 0.000 claims abstract description 5
- 238000011065 in-situ storage Methods 0.000 claims abstract description 4
- 150000002576 ketones Chemical class 0.000 claims abstract 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 24
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002243 precursor Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 229910052741 iridium Inorganic materials 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 229910052703 rhodium Inorganic materials 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 238000001507 sample dispersion Methods 0.000 claims description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- 229910021524 transition metal nanoparticle Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 3
- 238000007539 photo-oxidation reaction Methods 0.000 claims 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000006392 deoxygenation reaction Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000006555 catalytic reaction Methods 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract 1
- 239000010931 gold Substances 0.000 description 11
- 229910021650 platinized titanium dioxide Inorganic materials 0.000 description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 235000019445 benzyl alcohol Nutrition 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 229910000510 noble metal Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 238000000862 absorption spectrum Methods 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- MFGWMAAZYZSWMY-UHFFFAOYSA-N (2-naphthyl)methanol Chemical compound C1=CC=CC2=CC(CO)=CC=C21 MFGWMAAZYZSWMY-UHFFFAOYSA-N 0.000 description 1
- GETTZEONDQJALK-UHFFFAOYSA-N (trifluoromethyl)benzene Chemical compound FC(F)(F)C1=CC=CC=C1 GETTZEONDQJALK-UHFFFAOYSA-N 0.000 description 1
- WAPNOHKVXSQRPX-UHFFFAOYSA-N 1-phenylethanol Chemical compound CC(O)C1=CC=CC=C1 WAPNOHKVXSQRPX-UHFFFAOYSA-N 0.000 description 1
- -1 4- methylbenzyl alcohols Chemical class 0.000 description 1
- 125000004217 4-methoxybenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1OC([H])([H])[H])C([H])([H])* 0.000 description 1
- 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 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- QYSYEILYXGRUOM-UHFFFAOYSA-N [Cl].[Pt] Chemical compound [Cl].[Pt] QYSYEILYXGRUOM-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- QILSFLSDHQAZET-UHFFFAOYSA-N diphenylmethanol Chemical compound C=1C=CC=CC=1C(O)C1=CC=CC=C1 QILSFLSDHQAZET-UHFFFAOYSA-N 0.000 description 1
- 230000003828 downregulation Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000002784 hot electron Substances 0.000 description 1
- 208000006278 hypochromic anemia Diseases 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000007704 transition Effects 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
- 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
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/48—Silver or gold
- B01J23/52—Gold
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B41/00—Formation or introduction of functional groups containing oxygen
- C07B41/06—Formation or introduction of functional groups containing oxygen of carbonyl groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
- C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
- C07C45/37—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups
- C07C45/38—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups being a primary hydroxyl group
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of preparation methods of photo-thermal catalyst.Using photic Ti3+Assisted Reduction method in situ on semiconductor carrier material supported bi-metallic nano particle synthesize photo-thermal catalyst, using solar energy as react light source, efficiently catalysis oxidation aromatic alcohol produce aromatic aldehyde（Ketone）.The present invention generates surface plasmon resonance effect using the metal nanoparticle on photo-thermal catalyst and generates local thermal field, in the case where not consuming other input energy sources, the rate for significantly promoting aromatic alcohol selective oxidation, solves the problems, such as that current visible light photocatalysis technology reaction rate during selective oxidation aromatic alcohol is slow.
Description
Technical field
The present invention relates to solar energy and its application, more particularly to a kind of preparation method of bimetallic photo-thermal catalyst.
Background technology
Titanium dioxide is a kind of common multifunctional inorganic nonmetallic materials, is widely used in industry and the daily life of people
Every field living has multinomial research report and shows TiO at present2Semiconductor answering in photocatalysis to selectively oxidation process
Use potentiality.However, optically catalytic TiO 2 technology remains some crucial problem in science, if light abstraction width is narrow, amount
The problems such as sub- efficiency is relatively low, hinders the application and development of titanic oxide material industrially as photochemical catalyst.
Noble metal (the especially nano particles such as gold, silver) has stronger absorption in visibility region, has very strong surface
Local plasmon volume primitive vibrates, and the oscillation of plasma primitive, also along with thermionic generation, therefore, utilizes gold in relaxation
The surface plasmon resonance effect (SPR) that metal nano-particle generates can be in the irradiation down regulation chemical conversion of visible light.Mesh
The fast development of preceding nanometer synthetic technology makes the size of metal nanoparticle, pattern can get Effective Regulation so that metal watch
Face plasma primitive oscillation cause hot-electron processes, yielding unusually brilliant results during light-catalyzed reaction, by design with
Good metal/semiconductor interface is constructed, unlimited possibility can be provided for the thermoelectron regulation process of photochemical catalyst.
Currently, the development of photocatalysis technology is mainly in the laboratory research stage, it is less efficient.And traditional thermocatalytic mainly according to
By electric heat supply, energy consumption is huge.Therefore, by the depositing metallic nanoparticles on semi-conducting material, to utilize metal nano
The surface plasmon resonance effect of particle absorbs the solar energy of visible light wave range and the local thermal field that generates, makes on photochemical catalyst
Metal nanoparticle generate thermocatalytic effect, in the case where not consuming other input energy sources such as electric energy, significantly promoted urge
Change efficiency.
Invention content
The present invention provides a kind of method preparing bimetallic photo-thermal catalyst, and then realizes using photo-thermal catalyst in the sun
Efficient selective oxidation aromatic alcohol produces aromatic aldehyde under the conditions of light, solves reaction efficiency in existing photocatalysis to selectively oxidation technology
The problems such as low.
The technical scheme is that：
Bimetallic photo-thermal catalyst is by the semi-conducting material with photocatalytic activity（Carrier material）With the metal with SPR effects
Nano particle（Au,Ag）It is formed with VIII group 4 transition metal nano particles（Pt,Pd,Ru,Ir,Rh）, wherein carrier material is to receive
Rice TiO2（Rutile titania phase）, nano-TiO2（Rutile Type）, nano-TiO2（Degussa P25）.
The preparation method of the bimetallic photo-thermal catalyst uses photic Ti3+Assisted Reduction method in situ, includes the following steps：
（1）By carrier material sample dispersion in equipped with 10% methanol solution, and being ultrasonically treated makes mixed liquor be uniformly dispersed, and is denoted as
Mixed liquor A；
（2）It is filled with argon gas in mixed liquor, processing then is sealed to the container；
（3）Under stirring, after being irradiated to sealing container using high-pressure sodium lamp, Ti4+It is changed into Ti3+, mixed liquor A by
Original white is changed into navy blue；
（4）Next according to the mass percent of load nano particle（0.5%-2%）, by two kinds of metal nanoparticles of I and II
Precursor solution（Including nitrate, chloride etc.）It is added separately in the mixed liquor A after photo-irradiation treatment, is denoted as mixed liquid B；
（5）Mixed liquid B is stirred under dark condition, until mixed liquor color no longer changes；
（6）Sediment is filtered out, and the cleaning time in deionized water and absolute ethyl alcohol, is placed in drying in oven.
It utilizes sunlight as catalytic oxidation process and luminous energy is provided, make TiO2It is anti-that carrier can absorb ultraviolet photo-induced photocatalysis
It answers, on the other hand absorbing visible light wave range using noble metal nano particles again generates surface plasmon resonance effect, is promoted
Metallic surface temperature induces heat catalysis, finally significantly promotes reaction rate.
Beneficial effects of the present invention are embodied in following two aspects：1. using photic Ti3+Assisted Reduction method load in situ is double
Metal nanoparticle has certain versatility and need not use reducing agent.Since the load utilizes TiO2Surface is uniformly divided
The Ti of cloth3+Precious metal cation is restored, so noble metal nano particles can be with TiO2Carrier forms better contact.2.
For the defect that visible light photocatalysis technology reaction rate is slow, using SPR effects and band-to-band transition to the full spectrum of solar spectrum
The local thermal field for absorbing and generating makes the metal nanoparticle on photochemical catalyst generate thermocatalytic effect, is not consuming electric energy etc.
In the case of other input energy sources, catalytic efficiency is significantly promoted.
Description of the drawings
Fig. 1 Au/Pt/TiO2The transmission electron microscope photo of photo-thermal catalyst.
Fig. 2 Au/Pt/TiO2The stereoscan photograph of photo-thermal catalyst.
Fig. 3 Au/Pt/TiO2The uv-visible absorption spectra of photo-thermal catalyst.
Specific implementation mode
It elaborates with reference to the accompanying drawings and examples to the present invention.
Embodiment 1
By 1g nano-TiOs2（Rutile titania phase）It is distributed in the heat resistant glass cup equipped with 40 mL methanol (10%) solution, is ultrasonically treated 10
After minute, high-purity argon gas is filled in mixed liquor 15 minutes, it is ensured that without dissolved oxygen in container, place then is sealed to the container
Reason.Under stirring, after being irradiated 2 hours to sealing container using the high-pressure sodium lamp of 300 W, mixed liquor color is by white
Change navy blue（Ti4+It is changed into Ti3+）.The presoma of metal nanoparticle is then added wherein（Chlorauric acid solution and chlorine platinum
Acid solution）, and stirred 1 hour under dark condition, and stirred under dark condition until mixed liquor color no longer changes.With
Afterwards, sediment is filtered out, and is cleaned three times in deionized water and absolute ethyl alcohol, be placed in 80oC drying in oven 12 hours, most
Afterwards in Muffle furnace by the catalyst of synthesis with 350oC is calcined 5 hours, obtains Au/Pt/TiO2Photo-thermal catalyst.Au/Pt/TiO2
The transmission electron microscope and stereoscan photograph of photo-thermal catalyst are as shown in Figure 1 and Figure 2, and uv-visible absorption spectra is as shown in Figure 3.
The P160006 heavy walls pressure bottle (15 mL) produced using Beijing Xin Weier glass apparatus Co., Ltd, by 50 mg
The benzyl alcohol of the photo-thermal catalyst of synthesis and 50 μm of ol are added in the benzotrifluoride solvent of 5 mL, and it is 99.99% to be filled with purity
5 min of oxygen, polytetrafluorethylescrewed screwed lid sealed reaction vessel is used in combination.By reactor supersound process make within 3 minutes catalyst with
Reaction substrate comes into full contact with.The reactor handled well is placed on blender, convergence sunlight is utilized（Using simulated solar irradiation,
Light intensity is 15 times of AM1.5）Irradiate reactor 4 hours.Au/Pt/TiO2Photo-thermal catalyst can promote catalysis oxidation benzyl alcohol
Reaction efficiency, yield is TiO219 times.
Embodiment 2
With Au/Pt/TiO2For, by the different aromatic alcohol substrates of the photochemical catalyst and 50 μm of ol of 50 mg synthesis（Benzyl alcohol,
Alpha-phenyl ethyl alcohol, 4- methylbenzyl alcohols, 4- methoxy benzyl alcohols, 4- chloros benzyl alcohol, naphthalene methanol, benzhydrol）It is added to 5 mL
Toluene solvant in, be filled with purity be 99.99% 5 min of oxygen, polytetrafluorethylescrewed screwed lid sealed reaction vessel is used in combination.It will
Reactor, which is ultrasonically treated 3 minutes, makes catalyst be come into full contact with reaction substrate.The reactor handled well is placed on blender, profit
With convergence sunlight（Using simulated solar irradiation, light intensity is 15 times of AM1.5）Irradiate reactor 4 hours.According to testing result,
Au/Pt/TiO2Photochemical catalyst is listed in table 1 to the conversion rate and selectivity of distinct fragrance alcohol substrate selective oxidation reaction.
Table 1 is with Au/Pt/TiO2Aromatic alcohol experimental result is aoxidized for catalyst photocatalysis to selectively
Claims (5)
1. a kind of preparation method of bimetallic photo-thermal catalyst, which is characterized in that offer is a kind of to prepare bimetallic photo-thermal catalyst
Method, and then realize using sunlight efficient selective oxidation aromatic alcohol produce aromatic aldehyde（Ketone）.
2. a kind of preparation method of bimetallic photo-thermal catalyst according to claim 1, which is characterized in that the photocatalysis
Agent is made of the semi-conducting material with photocatalytic activity with double kind of a metal nanoparticles.
3. a kind of method for producing aromatic aldehyde using sun photooxidation aromatic alcohol according to claim 2, which is characterized in that institute
It is nano-TiO to state semi-conducting material2（Rutile titania phase）, nano-TiO2（Rutile Type）, nano-TiO2（Degussa P25）.
4. a kind of method for producing aromatic aldehyde using sun photooxidation aromatic alcohol according to claim 2, which is characterized in that institute
Two kinds of metal nanoparticles for stating load are by the metal nanoparticle I with surface plasmon resonance effect（Au,Ag）With
VIII group 4 transition metal nano particles II compositions（Pt,Pd,Ru,Ir,Rh）.
5. a kind of method for producing aromatic aldehyde using sun photooxidation aromatic alcohol according to claim 1, which is characterized in that institute
It states photochemical catalyst and uses photic Ti3+Prepared by assisted Reduction method in situ, be as follows：1. by carrier material sample dispersion to dress
Have in methanol solution, and being ultrasonically treated makes mixed liquor be uniformly dispersed；2. under deoxygenation air-proof condition, sealing is held with high-pressure sodium lamp
Device is irradiated, and forms Ti3+；3. by the precursor solution of the precursor solution of metal nanoparticle I and metal nanoparticle II
According to the mass percent of load nano particle（0.5%-2%）Addition（Including nitrate, chloride etc.）；4. under dark condition
Stirring, utilizes Ti3+Reducing metal presoma, until color no longer changes；5. mixed liquid B is stirred under dark condition, until
Mixed liquor color no longer changes；Sediment is filtered out, and the cleaning time in deionized water and absolute ethyl alcohol, is placed in baking oven and dries
It is dry.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413897A (en) * | 2021-07-19 | 2021-09-21 | 中国科学院山西煤炭化学研究所 | Efficient composite photocatalyst and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000402A (en) * | 2016-05-30 | 2016-10-12 | 华东理工大学 | Preparation method and application of Pt-Au supported titanium dioxide composite nanoparticles |
| CN106693962A (en) * | 2017-01-21 | 2017-05-24 | 杨林 | Method for preparing dual-precious-metal nanometer catalyst |
| CN107417503A (en) * | 2017-06-30 | 2017-12-01 | 奥为（天津）环保科技有限公司 | A kind of method for producing aromatic aldehyde using sun photooxidation aromatic alcohol |
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- 2018-05-02 CN CN201810409166.7A patent/CN108722398A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106000402A (en) * | 2016-05-30 | 2016-10-12 | 华东理工大学 | Preparation method and application of Pt-Au supported titanium dioxide composite nanoparticles |
| CN106693962A (en) * | 2017-01-21 | 2017-05-24 | 杨林 | Method for preparing dual-precious-metal nanometer catalyst |
| CN107417503A (en) * | 2017-06-30 | 2017-12-01 | 奥为（天津）环保科技有限公司 | A kind of method for producing aromatic aldehyde using sun photooxidation aromatic alcohol |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413897A (en) * | 2021-07-19 | 2021-09-21 | 中国科学院山西煤炭化学研究所 | Efficient composite photocatalyst and preparation method and application thereof |
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