CN111298786A - Micron hexagonal prism MoO3-xPreparation method of photocatalytic material - Google Patents
Micron hexagonal prism MoO3-xPreparation method of photocatalytic material Download PDFInfo
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- CN111298786A CN111298786A CN202010029363.3A CN202010029363A CN111298786A CN 111298786 A CN111298786 A CN 111298786A CN 202010029363 A CN202010029363 A CN 202010029363A CN 111298786 A CN111298786 A CN 111298786A
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- 239000000463 material Substances 0.000 title claims abstract description 29
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 14
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 11
- 229910015675 MoO3−x Inorganic materials 0.000 claims abstract description 11
- 239000008103 glucose Substances 0.000 claims abstract description 11
- 229910004619 Na2MoO4 Inorganic materials 0.000 claims abstract description 10
- 239000011684 sodium molybdate Substances 0.000 claims abstract description 10
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000008367 deionised water Substances 0.000 claims description 13
- 229910021641 deionized water Inorganic materials 0.000 claims description 13
- 239000002244 precipitate Substances 0.000 claims description 8
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- 229920002538 Polyethylene Glycol 20000 Polymers 0.000 claims description 6
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 229910015667 MoO4 Inorganic materials 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 claims description 2
- 229930003268 Vitamin C Natural products 0.000 claims description 2
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- 235000019154 vitamin C Nutrition 0.000 claims description 2
- 239000011718 vitamin C Substances 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims 4
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 claims 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- 229910021626 Tin(II) chloride Inorganic materials 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 235000007686 potassium Nutrition 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 239000012279 sodium borohydride Substances 0.000 claims 1
- 229910000033 sodium borohydride Inorganic materials 0.000 claims 1
- 239000001119 stannous chloride Substances 0.000 claims 1
- 235000011150 stannous chloride Nutrition 0.000 claims 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Inorganic materials O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 10
- 239000001301 oxygen Substances 0.000 abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 abstract description 10
- 239000000969 carrier Substances 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 6
- 238000005215 recombination Methods 0.000 abstract description 5
- 230000006798 recombination Effects 0.000 abstract description 5
- 238000007146 photocatalysis Methods 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000004044 response Effects 0.000 abstract description 3
- 230000002378 acidificating effect Effects 0.000 abstract description 2
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 230000004298 light response Effects 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 12
- 239000011941 photocatalyst Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000001493 electron microscopy Methods 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000005424 photoluminescence Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001868 water Inorganic materials 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910015711 MoOx Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000001941 electron spectroscopy Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
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- 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
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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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/28—Molybdenum
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- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
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- C01G39/02—Oxides; Hydroxides
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C09K11/68—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing refractory metals containing chromium, molybdenum or tungsten
- C09K11/681—Chalcogenides
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Abstract
Micron hexagonal prism MoO3‑xA preparation method of a photocatalytic material belongs to the technical field of photocatalytic materials. The invention uses glucose to reduce MoO3Preparing MoO with oxygen-rich vacancy on the surface3‑xA photocatalytic material. In particular to a method for preparing Na2MoO4·2H2Reacting O with HCl, taking glucose as a reducing agent, stirring at normal temperature or low temperature for reaction, and finally washing and drying to obtain MoO with oxygen-rich vacancy on the surface3‑xA micron hexagonal prism material. The present invention is directed to MoO3Wide forbidden band width and response to visible lightShould be weak, and MoO during photocatalysis3High recombination rate of hole-electron pair and low separation efficiency of photon-generated carriers, using Na2MoO4·2H2Preparing MoO with oxygen-rich vacancy on surface in acidic aqueous solution by using O as raw material and glucose as reducing agent through in-situ reduction method3‑xThe material has narrow forbidden band width, wider visible light response range and promoted separation efficiency of photon-generated carriers, thereby improving the photocatalytic performance of the material.
Description
Technical Field
The invention relates to a micron hexagonal prism MoO3-xA preparation method of a photocatalytic material belongs to the technical field of photocatalytic materials, and particularly relates to a preparation method of a photocatalytic material. The method is technically characterized in that Na is used2MoO4·2H2O is taken as a raw material, a glucose reducing agent is adopted, and an in-situ reduction method is adopted under an acidic condition to prepare MoO with oxygen-rich vacancy on the surface3-xA photocatalytic material.
Background
With the continuous development of social economy, the environmental pollution condition is great and worried, meanwhile, people also put forward higher requirements on the environmental quality, and the environmental protection and treatment problems are receiving more and more attention.
Organic dyes are important factors causing water pollution, and in recent years, a method for degrading organic pollutants in water by using a photocatalyst becomes an important means in the field of water pollution treatment. Compared with the traditional sewage treatment methods such as adsorption and precipitation, the photocatalysis method has the advantages of simple process, low energy consumption and the like, and can oxidize and decompose most of organic matters which are difficult to degrade at normal temperature and normal pressure into CO2And H2O。
At present, the more well-studied and technically mature photocatalyst is nano TiO2The photocatalyst has the advantages of high catalytic activity, good thermal stability, low price, no toxicity and the like. But due to TiO2The energy gap of the solar spectrum is narrow (3.2eV), the spectral absorption threshold is 387nm, and only the ultraviolet part of the solar spectrum can be utilized. Furthermore, TiO2The electron-hole recombination rate generated by excitation is high, so that the light quantum efficiency is low, and the inherent defect greatly limits the application range of the light quantum. In order to solve this problem, researchers are demandingIt is expected to find other novel semiconductor catalysts to replace or modify TiO2。
Molybdenum is a typical transition metal element, and has abundant chemical valence states and numerous compounds, so that the molybdenum is applied to multiple fields such as catalysts, battery materials, superconducting materials, energy storage materials and the like. Wherein, MoO3The N-type semiconductor material is an N-type semiconductor material with a unique channel structure, and has attracted wide attention in the fields of organic pollutant degradation, hydrogen production, solar cells, gas sensors and the like in recent years. Despite MoO3Has good application prospect as a photocatalyst, but still has some limitations, mainly MoO3Has a wide forbidden band width, lacks response to visible light, and in addition, MoO is generated in the photocatalysis process3The hole-electron pair recombination rate is high, and the separation efficiency of the photon-generated carriers is low.
Research finds that the introduction of oxygen vacancy can promote the separation process of photon-generated carriers and expand MoO3The light absorption range of (2) and the photocatalytic performance of the photocatalyst are improved. 'Over 100-nm-Thick MoOx Films with superior hole Collection and Transport Properties for Organic Solar Cells' (advanced energy Materials, 2018, 8(25)) published by Bei Yang et al, ammonium paramolybdate is used as a precursor, vitamin C is used as a reducing agent to prepare a solution, the solution is spin-coated to form a film, and MoO rich in oxygen vacancy is obtained by high-temperature annealing treatment3-xA film. Experimental results show that the light absorption capacity of the film is greatly improved. 'high-performance lithium ion battery cathode material MoO' published in Li Chun Xiao et al3-xPreparation and Performance Studies "with molybdenum trioxide (MoO)3) With oxalic acid (H) dihydrate2C2O4·2H2O) as main material, deionized water to prepare solution, and isopropanol (C)3H8O) as a solvent, reacting for 12h at 120 ℃, and then preserving heat for 2h at 120 ℃ under the atmosphere of argon to prepare flower-shaped molybdenum oxide (MoO) with an oxygen defect structure3-x). But reported at present in MoO3The processes for introducing oxygen vacancies are all relatively complex.
Disclosure of Invention
The invention aims to solve MoO3The forbidden band width is wide, and the forbidden band width is wide,lack of response to visible light, high recombination rate of hole-electron pairs and low separation efficiency of photon-generated carriers.
The technical scheme adopted for achieving the aim of the invention is to prepare a micron hexagonal prism MoO3-xPhotocatalytic material characterized by the following steps:
1) mixing Na2MoO4·2H2Dissolving O in deionized water;
the Na is2MoO4·2H2The molar volume ratio (mol: L) of O to deionized water is 1: 4-25;
2) adding PEG-20000 into the solution obtained in the step 1), and stirring until the solution is clear;
the PEG-20000 and Na2MoO4·2H2The mass ratio (g: g) of O is 1: 3-20;
3) slowly dripping concentrated HCl into the solution obtained in the step 2), stirring for 30min, and uniformly mixing;
the volume ratio (L: L) of the concentrated HCl to the deionized water is as follows: 8-25;
4) adding 0.2-1 g of glucose into the solution obtained in the step 3), and uniformly dispersing;
the glucose is mixed with Na2MoO4·2H2The mass ratio (g: g) of O is 1: 1-10;
5) stirring the suspension obtained in the step 4) at 25-80 ℃ for reaction for 1-12 h;
6) washing the solution obtained in the step 5) with deionized water, centrifuging to obtain a precipitate, and drying the precipitate at 60 ℃ for 10-20 h to obtain blue or deep blue MoO3-xAnd (3) powder.
Compared with the prior art, the invention has the following remarkable advantages:
(1) the invention successfully prepares the surface oxygen-rich vacancy MoO by using common glucose as a modifier and adopting a one-step reduction method3-xMicron hexagonal prism.
(2) MoO prepared by the invention3-xThe material has wider visible light response range, high separation efficiency of photon-generated carriers, good photocatalytic activity and high degradation efficiency on organic matters.
(3) The preparation method is simple, can react at normal temperature or low temperature, and has short reaction time, economy and environmental protection.
Drawings
FIG. 1(a) MoO prepared in example 13-xElectron Microscopy (SEM) image of material, FIG. 1(b) MoO prepared in example 23Electron Microscopy (SEM) images of the materials.
Fig. 2(a) and (b) are X-ray electron spectroscopy (XPS) spectra of the materials prepared in example 1 and example 2, respectively.
FIG. 3 is a Photoluminescence (PL) spectrum of the materials prepared in examples 1 and 2.
FIG. 4 is a graph showing the photocatalytic performance test of the materials prepared in examples 1 and 2.
Detailed Description
The present invention will be further described with reference to the following examples and drawings, but it should not be understood that the scope of the subject matter described above is limited to the following examples and drawings. Various substitutions and alterations can be made without departing from the technical idea of the invention and the scope of the invention is covered by the present invention according to the common technical knowledge and the conventional means in the field.
Example 1:
1) 1.2g of Na2MoO4·2H2Dissolving O in 50ml of deionized water;
2) adding 0.1g of PEG-20000 into the solution obtained in the step 1), and stirring until the solution is clear;
3) slowly dripping 3.5ml of concentrated HCl into the solution obtained in the step 2), and stirring for 30 min;
4) adding 0.5g of glucose into the solution obtained in the step 3), and uniformly dispersing;
5) stirring the suspension obtained in the step 4) at 60 ℃ for reacting for 4 hours;
6) washing the solution obtained in the step 5) with deionized water, centrifuging to obtain a precipitate, and drying the precipitate at 60 ℃ for 12 hours to obtain blue or deep blue MoO3-xAnd (3) powder.
Example 2:
1) adding 1-2 g of Na2MoO4·2H2O was dissolved in 50ml of deionized water.
2) 0.1g PEG-20000 was added to the solution of step 1) and stirred until the solution was clear.
3) 3.5ml of concentrated HCl is slowly dropped into the solution in the step 2) and stirred for 30 min.
4) Washing and centrifuging the precipitate with deionized water and ethanol in the solution in the step 3), and drying the precipitate at 60 ℃ for 12h to obtain MoO3A micron column.
SEM (FIG. 1) XPS (FIG. 2) testing shows that MoO prepared by the present invention3The micron rod presents a regular hexagonal prism shape and has a smooth surface; after modification, MoO3Mo in the surface part is reduced from +6 to +5, so that MoO3-xThe surface of the sample was partially defected, and many oxygen vacancies were formed. At the same time, MoO3-xThe recombination capability of the photogenerated electron-hole pairs is effectively suppressed (fig. 3). Thus MoO3-xIn the photocatalytic reaction of the catalyst, more photo-generated electron-hole pairs can participate in the reaction, and the photocatalytic performance is more excellent (figure 4).
Claims (4)
1. Micron hexagonal prism MoO3-xThe preparation method of the photocatalytic material is characterized by comprising the following steps: the method comprises the following steps:
1) mixing Na2MoO4·2H2Dissolving O in deionized water;
the Na is2MoO4·2H2The molar volume ratio (mol: L) of O to deionized water is 1: 4-25;
2) adding PEG-20000 into the solution obtained in the step 1), and stirring until the solution is clear;
the PEG-20000 and Na2MoO4·2H2The mass ratio (g: g) of O is 1: 3-20;
3) slowly dripping concentrated HCl into the solution obtained in the step 2), stirring for 30min, and uniformly mixing;
the volume ratio (L: L) of the concentrated HCl to the deionized water is as follows: 8-25;
4) adding 0.2-1 g of glucose into the solution obtained in the step 3), and uniformly dispersing;
the glucose is mixed with Na2MoO4·2H2Quality of OThe weight ratio (g: g) is 1: 1-10;
5) stirring the suspension obtained in the step 4) at 25-80 ℃ for reaction for 1-12 h;
6) washing the solution obtained in the step 5) with deionized water, centrifuging to obtain a precipitate, and drying the precipitate at 60 ℃ for 10-20 h to obtain blue or deep blue MoO3-xAnd (3) powder.
2. A micron hexagonal prism MoO according to claim 13-xThe preparation method of the photocatalytic material is characterized in that the acid in the step 3) is hydrochloric acid.
3. A micron hexagonal prism MoO according to claim 13-xThe preparation method of the photocatalytic material is characterized in that the reducing agent in the step 4) is not limited to glucose, but also comprises vitamin C, oxalic acid, stannous chloride, potassium borohydride, sodium borohydride and the like.
4. A micron hexagonal prism MoO according to claim 13-xThe preparation method of the photocatalytic material is characterized in that the prepared MoO3-xIs a micron hexagonal prism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010029363.3A CN111298786B (en) | 2020-01-07 | 2020-01-07 | Micrometer hexagonal prism MoO 3-x Preparation method of photocatalytic material |
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| CN202010029363.3A CN111298786B (en) | 2020-01-07 | 2020-01-07 | Micrometer hexagonal prism MoO 3-x Preparation method of photocatalytic material |
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| CN111298786A true CN111298786A (en) | 2020-06-19 |
| CN111298786B CN111298786B (en) | 2024-03-12 |
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