CN113244910B - Bi/Bi synthesized by low-cost one-step semi-dissolution method 2 WO 6 Method for preparing photocatalyst - Google Patents
Bi/Bi synthesized by low-cost one-step semi-dissolution method 2 WO 6 Method for preparing photocatalyst Download PDFInfo
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- CN113244910B CN113244910B CN202110483164.4A CN202110483164A CN113244910B CN 113244910 B CN113244910 B CN 113244910B CN 202110483164 A CN202110483164 A CN 202110483164A CN 113244910 B CN113244910 B CN 113244910B
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- 239000011941 photocatalyst Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000011978 dissolution method Methods 0.000 title claims abstract description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 229910021642 ultra pure water Inorganic materials 0.000 claims abstract description 7
- 239000012498 ultrapure water Substances 0.000 claims abstract description 7
- 239000000047 product Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000006228 supernatant Substances 0.000 claims abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 238000005406 washing Methods 0.000 claims abstract description 3
- 239000002243 precursor Substances 0.000 claims description 14
- 239000012265 solid product Substances 0.000 claims description 6
- 238000003760 magnetic stirring Methods 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000001699 photocatalysis Effects 0.000 abstract description 16
- 238000007146 photocatalysis Methods 0.000 abstract description 6
- 239000000969 carrier Substances 0.000 abstract description 2
- 230000031700 light absorption Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 230000002194 synthesizing effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 abstract 4
- 238000005119 centrifugation Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 14
- 239000002245 particle Substances 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000001465 metallisation Methods 0.000 description 5
- 239000002105 nanoparticle Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- 238000006722 reduction reaction Methods 0.000 description 4
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 4
- 229940043267 rhodamine b Drugs 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002715 modification method Methods 0.000 description 3
- 239000002064 nanoplatelet Substances 0.000 description 3
- 239000002135 nanosheet Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000000026 X-ray photoelectron spectrum Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000011943 nanocatalyst Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000002198 surface plasmon resonance spectroscopy Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- 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
- B01J23/31—Chromium, molybdenum or tungsten combined with bismuth
-
- 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
- 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
- B01J35/391—Physical properties of the active metal ingredient
-
- 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
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a low-cost one-step semi-dissolution method for synthesizing Bi/Bi 2 WO 6 Method of photocatalyst, bi (NO 3 ) 3 ·5H 2 O is dissolved in N, N-dimethylformamide, and solution A is obtained after stirring, naWO is added 4 ·2H 2 O was dissolved in ultrapure water, and stirred to obtain a solution B. Then pouring the solution B into the solution A, stirring for 30min, pouring the mixed solution into a reaction kettle, reacting at 140 ℃ for 24 hours, naturally cooling to room temperature, pouring the product into a centrifuge tube for centrifugation, pouring out supernatant liquid to obtain solid, respectively centrifugally washing with water and absolute ethyl alcohol for 3 times, and drying at a constant temperature of 60 ℃ to obtain Bi/Bi 2 WO 6 A photocatalyst. The invention prepares Bi/Bi by a one-step semi-dissolution method 2 WO 6 The photocatalyst has the advantages of simple method, easy operation and low cost; and the synthesized Bi/Bi 2 WO 6 The photocatalyst has good light absorption performance, can effectively separate photon-generated carriers, and has stronger photocatalysis performance under the irradiation of simulated sunlight.
Description
Technical Field
The invention relates to the technical field of photocatalyst synthesis, in particular to a low-cost one-step semi-dissolution method for synthesizing Bi/Bi 2 WO 6 A method of photocatalyst.
Background
The photocatalysis technology is an efficient, economical and environment-friendly emerging technology, and is one of ideal methods for solving the problems of energy and environment. However, in the process of realizing industrialization, it is particularly important to find a photocatalyst with simple preparation method, low cost and good catalytic effect. Bi (Bi) 2 WO 6 Is a perovskite semiconductor material, is nontoxic and has high stability, and can respond to ultraviolet light accounting for 4 percent of solar energy and visible light accounting for 44 percent of solar energy. In the photocatalysis treatment of wastewater, gas desulfurization and denitrification, CO 2 Is widely applied in the field of hydrogen production by photocatalytic water splitting. But the very easily recombined photo-generated electrons and holes limit its photocatalytic properties.
Bi by noble metal deposition 2 WO 6 The modification method can effectively improve the photocatalytic activity. However, the high price and low earth abundance of precious metal materials make large-scale industrial production an aerial pavilion, and is different from Bi 2 WO 6 The incorporation of noble metal particles of the contained elements also destabilizes the composite system.
In recent years, bi nano-particles are gradually applied to photocatalyst metal deposition modification, and surface electron energy of the Bi nano-particles generates plasma resonance under irradiation of visible light, so that the light absorption capacity is improved, and the cost is relatively low, so that the Bi nano-particles are deposited on Bi 2 WO 6 The method is an ideal modification method. However, the existing preparation method of Bi nano-particles is mostly that a strong reducing agent and a Bi source undergo a strong reduction reaction. However, the intense reaction process and the high price of the strong reducing agent undoubtedly increase the risks and costs of industrialization. Thereafter, the learner found that ethylene glycol was able to convert Bi at high temperature 3+ The reduction into Bi nano-particles greatly reduces the cost of Bi metal deposition and increases the possibility of industrialization. However, the weak reducibility of ethylene glycol cannot reduce Bi ions to Bi simple substance at low temperature, so that the temperature must be increased to increase the reducibility of ethylene glycol, and the total solvent method requires the use of a large amount of ethylene glycol solvent, so that the synthesis cost and the risk thereof remain to be reduced. Meanwhile, the nano-catalyst carrying Bi particles is various and is not suitable for the synthesis in glycol, so that more Bi reduction needs to be developed 3+ Solvents of the ability to accommodate complex and varied synthetic environments.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a low-cost one-step semi-dissolution method for preparing Bi/Bi 2 WO 6 The method of the photocatalyst greatly reduces the cost of the existing Bi metal deposition modification method, simplifies the synthesis steps and effectively improves the Bi 2 WO 6 Is used for the photocatalytic performance of the catalyst. Is Bi/Bi 2 WO 6 The large-scale industrialized application provides technical support.
The invention aims at realizing the aim, and the technical proposal is thatBi/Bi prepared by low-cost one-step semi-dissolution method 2 WO 6 The preparation method of the photocatalyst comprises the following steps:
step 1. 0.417g of Bi (NO 3 ) 3 ·5H 2 O is dissolved in N, N-dimethylformamide solution, and magnetic stirring is carried out for 30min to obtain solution A;
0.1418g Na 2 WO 4 ·2H 2 O is dissolved in ultrapure water and magnetically stirred for 30min to obtain a solution B;
step 2, slowly pouring all the solution B in the step 1 into the solution A, and magnetically stirring for 30min to obtain a precursor; wherein the volume ratio of the N, N-dimethylformamide solution to the ultrapure water is 120mL, and is 1: (0-3);
step 3, injecting the precursor obtained in the step 2 into a polytetrafluoroethylene reaction kettle, heating to 140 ℃, keeping for 24 hours, and naturally cooling to room temperature; pouring the product into a centrifuge tube from a reaction kettle, centrifuging, and pouring out supernatant;
step 4, respectively centrifugally washing the remaining solid products with water and absolute ethyl alcohol for 3 times; putting the washed solid product into a constant temperature blast drying oven to be dried for 10 hours at 60 ℃ to obtain Bi/Bi 2 WO 6 A photocatalyst.
Further, in the step 1, the rotation speed of the magnetic stirring is 320r/min.
Further, it is preferable that the volume ratio of ultrapure water to N, N-dimethylformamide in the precursor is 1:1.
in the invention, the N, N-dimethylformamide solvent is taken as a solvent to inhibit Bi (NO) 3 ) 3 ·5H 2 The O raw material is hydrolyzed to produce impurities, which in turn act as a reducing agent to reduce Bi ions to Bi metal.
Compared with the prior art, the invention has the following advantages:
1. Bi/Bi synthesized by the one-step semi-dissolution method of the invention 2 WO 6 In the photocatalyst, the surface plasmon resonance performance of Bi particles can enhance the absorption rate of the catalyst to photons, thereby improving the photocatalytic performance.
2. Bi/Bi prepared by the present invention 2 WO 6 Photo-catalysisBi particles and Bi in the catalyst 2 WO 6 The ohmic junction formed between the nano sheets inhibits the recombination of photon-generated carriers, and the photocatalysis performance is effectively improved.
3. The invention synthesizes Bi/Bi by a one-step semi-dissolution method 2 WO 6 The photocatalyst is simple to operate, greatly reduces the synthesis cost, and is suitable for large-scale industrial production. And the Bi particles in Bi/Bi can be controlled by adjusting the content of the N, N-dimethylformamide solution in the precursor 2 WO 6 The ratio of the photocatalyst.
Drawings
FIG. 1 is a scanning electron microscope image of a 25-BWO,50-BWO,75-BWO,100-BWO sample in examples 1-4.
FIG. 2 is an X-ray diffraction pattern of a 25-BWO,50-BWO,75-BWO,100-BWO sample in examples 1-4.
FIG. 3 is an XPS spectrum of a 50-BWO sample in example 1.
FIG. 4 is a graph showing the effect of photocatalytic degradation of organic rhodamine B solution on 25-BWO,50-BWO,75-BWO,100-BWO samples in examples 1 to 4.
Detailed Description
The invention is described in detail below with reference to the drawings and the specific examples, but without limiting the scope of the invention. Unless otherwise specified, the experimental methods adopted by the invention are all conventional methods, and all experimental equipment, materials, reagents and the like used can be purchased from chemical companies.
Example 1
0.417g Bi (NO) was weighed out 3 ) 3 ·5H 2 O is dissolved in 60mL of N, N-dimethylformamide solution, and the solution A is obtained by magnetically stirring for 30min at normal temperature. Weighing 0.1418g of Na 2 WO 4 ·2H 2 O was dissolved in 60mL of ultrapure water and magnetically stirred at room temperature for 30 minutes to obtain solution B. Slowly pouring the solution B into the solution A, and magnetically stirring for 30min to obtain the precursor. The precursor is injected into a 200mL polytetrafluoroethylene reaction kettle, heated to 140 ℃, kept for 24 hours, and then naturally cooled to room temperature. Pouring the product into a centrifuge tube from a reaction kettle, centrifuging, and pouring out supernatant. The remaining solid product was separately centrifugally washed 3 times with water and absolute ethanol, respectively. Will beAnd placing the washed solid product into a constant temperature blast drying oven to be dried for 10 hours at 60 ℃. The gray solid powder is Bi/Bi 2 WO 6 And is denoted as 50-BWO.
Example 2
This example differs from example 1 only in that the precursor has a content of N, N-dimethylformamide of 30mL, 25% of the total volume of the precursor, denoted 25-BWO.
Example 3
This example differs from example 1 only in that the precursor has a content of N, N-dimethylformamide of 90mL, 75% of the total volume of the precursor, denoted 75-BWO.
Example 4
This example differs from example 1 only in that the precursor has a content of 120mL of N, N-dimethylformamide solution, 100% of the total precursor volume, denoted 100-BWO.
As can be seen from the scanning electron microscope result shown in fig. 1 and the X-ray diffraction result of fig. 2: 25-BWO is pure Bi 2 WO 6 (JCPDS 39-0256) nanosheet photocatalyst, no other substances were found. 50-BWO starts to appear Bi particle phase (JCPDS 85-1329) but Bi 2 WO 6 The nanoplatelets are the main product. Bi particles relative to Bi in 75-BWO samples 2 WO 6 The ratio of Bi is gradually increased until the Bi is taken as a main product of a 100-BWO sample 2 WO 6 The nanoplatelets almost disappear.
Meanwhile, as can be seen from the XPS result of the 50-BWO sample in FIG. 3, the surface of the 50-BWO sample has Bi in addition to Bi 3+ Besides the ions, a small amount of elemental Bi is present, which is consistent with the results of 50-BWO in FIGS. 1 and 2, strongly demonstrating the generation of Bi particles.
Application example
Bi/Bi prepared according to the method of the present invention 2 WO 6 Photocatalytic activity was detected by degradation of rhodamine B solution under irradiation with simulated sunlight.
The method comprises the following steps of
0.025g of photocatalyst is weighed and dispersed in 50mL of rhodamine B solution with the concentration of 10mg/L, under the magnetic stirring, the adsorption balance of rhodamine B molecules is ensured through dark reaction for 30min, and then a xenon lamp light source is turned on for photocatalysis experiments. Taking 2mL of suspension every 10min, centrifuging at 5000r/min for 3min, taking supernatant, measuring absorbance at 554nm, and calculating degradation rate. The cuvette used was a 10mm quartz cuvette and the absorbance of the water before the measurement of the sample was zeroed.
The experimental results are shown in FIG. 4, which shows that the Bi particles and Bi are used for simulating the irradiation of sunlight 2 WO 6 The photocatalysis performance of the 50-BWO sample formed by the nano-sheets is better than that of Bi 2 WO 6 Nanoplatelets (25-BWO) and Bi particles (100-BWO). Therefore, under the condition of simulating sunlight, bi/Bi after Bi metal deposition 2 WO 6 The photocatalyst has stronger photocatalytic performance.
The above description is only to create the preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and the application fields thereof may relate to the photocatalytic degradation of organic wastewater, the photocatalytic degradation of nitrogen oxides in flue gas, the photocatalytic treatment of Volatile Organic Compounds (VOCs), and the photocatalytic reduction of CO 2 And (3) carrying out photocatalytic pyrolysis to obtain hydrogen. It is intended that all technical solutions and equivalents and modifications according to the invention, which are within the scope of the invention disclosed by the invention, be covered by the scope of protection of the invention.
Claims (1)
1. Bi/Bi synthesized by low-cost one-step semi-dissolution method 2 WO 6 The method of the photocatalyst comprises the following steps:
step 1. Bi (NO) of 0.417 and 0.417g 3 ) 3 ·5H 2 O is dissolved in N, N-dimethylformamide solution, and magnetic stirring is carried out for 30min to obtain solution A;
0.1418g of Na 2 WO 4 ·2H 2 O is dissolved in ultrapure water and magnetically stirred for 30min to obtain a solution B;
step 2, slowly pouring all the solution B in the step 1 into the solution A prepared in the step 1, and magnetically stirring for 30min to obtain a precursor; wherein the volume ratio of the N, N-dimethylformamide solution to the ultrapure water is 120mL, and is 1: (1-3);
step 3, injecting the precursor obtained in the step 2 into a polytetrafluoroethylene reaction kettle, and heating to 140 o C, keeping for 24 hours, and then naturally cooling to room temperature; pouring the product into a centrifuge tube from a reaction kettle, centrifuging, and pouring out supernatant;
step 4, respectively centrifugally washing the remaining solid products with water and absolute ethyl alcohol for 3 times; placing the washed solid product into a constant temperature blast drying box 60 o Baking for 10 hr to obtain Bi/Bi 2 WO 6 A photocatalyst.
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| CN104707594A (en) * | 2015-03-19 | 2015-06-17 | 西南大学 | Bi/Aurivillius type oxide composite material as well as preparation method and application thereof |
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| CN104707594A (en) * | 2015-03-19 | 2015-06-17 | 西南大学 | Bi/Aurivillius type oxide composite material as well as preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| Isabel Pastoriza-Santos etal..Formation and Stabilization of Silver Nanoparticles through Reduction by N,N-Dimethylformamide.《Langmuir》.1999,(第15期),第948-951页. * |
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