CN108940291A - A kind of preparation method and applications of zinc ferrite magnetic photocatalyst - Google Patents
A kind of preparation method and applications of zinc ferrite magnetic photocatalyst Download PDFInfo
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- CN108940291A CN108940291A CN201810734600.9A CN201810734600A CN108940291A CN 108940291 A CN108940291 A CN 108940291A CN 201810734600 A CN201810734600 A CN 201810734600A CN 108940291 A CN108940291 A CN 108940291A
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- zinc ferrite
- ferrite magnetic
- magnetic photocatalyst
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- zinc
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- 229910001308 Zinc ferrite Inorganic materials 0.000 title claims abstract description 44
- WGEATSXPYVGFCC-UHFFFAOYSA-N zinc ferrite Chemical compound O=[Zn].O=[Fe]O[Fe]=O WGEATSXPYVGFCC-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 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 claims abstract description 14
- 229940043267 rhodamine b Drugs 0.000 claims abstract description 14
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229960000907 methylthioninium chloride Drugs 0.000 claims abstract description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 239000011259 mixed solution Substances 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 5
- 229960001763 zinc sulfate Drugs 0.000 claims description 5
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 230000036571 hydration Effects 0.000 claims description 4
- 238000006703 hydration reaction Methods 0.000 claims description 4
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 4
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(3+);trinitrate Chemical compound [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 4
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 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 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 2
- WOSISLOTWLGNKT-UHFFFAOYSA-L iron(2+);dichloride;hexahydrate Chemical compound O.O.O.O.O.O.Cl[Fe]Cl WOSISLOTWLGNKT-UHFFFAOYSA-L 0.000 claims description 2
- VXWSFRMTBJZULV-UHFFFAOYSA-H iron(3+) sulfate hydrate Chemical compound O.[Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O VXWSFRMTBJZULV-UHFFFAOYSA-H 0.000 claims description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 239000010865 sewage Substances 0.000 claims 3
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims 1
- 235000019441 ethanol Nutrition 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- WKPSFPXMYGFAQW-UHFFFAOYSA-N iron;hydrate Chemical compound O.[Fe] WKPSFPXMYGFAQW-UHFFFAOYSA-N 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 230000001699 photocatalysis Effects 0.000 abstract description 22
- 238000007146 photocatalysis Methods 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 6
- 238000006555 catalytic reaction Methods 0.000 abstract description 5
- 238000000975 co-precipitation Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 230000000593 degrading effect Effects 0.000 abstract 1
- 239000010919 dye waste Substances 0.000 abstract 1
- 239000002105 nanoparticle Substances 0.000 abstract 1
- 239000000975 dye Substances 0.000 description 16
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 11
- 239000000047 product Substances 0.000 description 9
- 239000011701 zinc Substances 0.000 description 7
- 229910052725 zinc Inorganic materials 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 238000002604 ultrasonography Methods 0.000 description 4
- 206010013786 Dry skin Diseases 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 229910016874 Fe(NO3) Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- NQXWGWZJXJUMQB-UHFFFAOYSA-K iron trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].Cl[Fe+]Cl NQXWGWZJXJUMQB-UHFFFAOYSA-K 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000007281 self degradation Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005307 ferromagnetism Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002703 mutagenesis Methods 0.000 description 1
- 231100000350 mutagenesis Toxicity 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100001234 toxic pollutant Toxicity 0.000 description 1
- 239000002699 waste material 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/80—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with zinc, cadmium or mercury
-
- B01J35/39—
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The invention discloses a kind of preparation method and applications of zinc ferrite magnetic photocatalyst, belong to inorganic environment-friendly catalysis material technical field, and the present invention prepares zinc ferrite nanoparticle using simple coprecipitation at room temperature；Zinc ferrite magnetic photocatalytic material prepared by the present invention photocatalytic activity with higher and stability, it can the effectively methylene blue in degrading organic dye waste water and rhodamine B under the irradiation of simulated solar irradiation, Magneto separate performance is good, photocatalysis stability is strong, convenient for reclaiming recycling, the use cost of catalysis material is reduced, and preparation method is simple, environment compatibility is good, is conducive to industrialized production and application.
Description
Technical field
The present invention relates to a kind of preparation method and applications of zinc ferrite magnetic photocatalyst, and in particular to the system of zinc ferrite
Preparation Method belongs to inorganic environment-friendly catalysis material technical field.
Background technique
It is well known that the discharge of waste water, exhaust gas of the primary pollution source in industrial production in environmental pollution.These
Waste water, exhaust gas are often based on various organic matters, complicated component, and direct processing difficulty is high.Actual production process
In, if treatment effeciency is low, advanced treatment process cannot completion early, the raising of operation cost of enterprises will necessarily be brought.
Especially water resource pollution is that current countries in the world generally face and one of urgent problem to be solved.Many poisonous and hazardous organic dirts
Dye object is very slow by the speed of water body and soil self-purification and purifies and is not thorough, and there are the time is long, range is wide in water body, to people
Class potential impact is very big, and such as many organic matters or the intermediate product of its degradation have " three causes of " carcinogenic, teratogenesis, mutagenesis "
Property ".These toxic pollutants difficult to degrade have been difficult to remove using traditional physics, chemistry, biological treatment.Cause
This, in order to improve wastewater treatment rate and reuse ratio, developing new and effective and environmental-friendly Treatment process becomes vast section
Learn the hot spot of researchers' research.The research for carrying out persistent organic pollutants control technology in economic and effective water body seems
It is especially urgent.Different from traditional method, photocatalysis technology utilizes the organic contamination in the degradable water and air of solar energy
Object does not generate secondary pollution, and easy to operate, at low cost, it is considered to be most has in wastewater treatment especially Industrial Wastewater Treatment
One of technology of future.
Zinc ferrite is a kind of semiconductor material of important narrow band gap, has good chemical stability and ferromagnetism,
Zinc ferrite is widely studied mainly as magnetic material and catalyst, is had broad application prospects.
Zinc ferrite preparation method in the prior art is complicated, and higher cost is unfavorable for industrialization large-scale production and application,
And its photocatalytic activity and photocatalysis stability are poor, are also not easy to recycle and reuse, serious waste of resources.
Summary of the invention
The technical problem to be solved by the present invention is to provide it is a kind of it is simple for process, photocatalytic activity is high, photocatalysis is stable
Well, be easily recycled the magnetic zinc ferrite photochemical catalyst recycled and preparation method thereof.
The present invention adopts the following technical scheme that solve above-mentioned technical problem, a kind of preparation of zinc ferrite magnetic photocatalyst
Method, it is characterised in that the following steps are included:
A kind of preparation method of zinc ferrite magnetic photocatalyst, which comprises the following steps:
Step 1, by 0.01mol~0.03mol zinc sulfate or its hydrate and 0.02mol~0.06mol ferricization
It closes object to be dissolved in deionized water, wherein the molar ratio of zinc sulfate or its hydrate and ferric compound is 1:2, ultrasound to institute
Have that compound is evenly dispersed,
It step 2, is 8~10 with the pH value that sodium hydroxide solution adjusts mixed solution, at room temperature by mixed solution
It sets in a round bottom flask, water-bath 4h, after reaction by product centrifuge washing, up to zinc ferrite magnetic photocatalytic after drying
Agent.
Preferably, the ferric compound be ferric trichloride or iron chloride hexahydrate, ferric nitrate or hydration nitre
Any one in sour iron, ferric sulfate or ferric sulfate hydrate.
Concentration as the preferably described sodium hydroxide solution is 1mol/L-4mol/L.
Preferably, the water-bath temperature is 70 DEG C -80 DEG C.
A kind of application using zinc ferrite magnetic photocatalyst as photochemical catalyst, which is characterized in that by zinc ferrite magnetism
Photochemical catalyst is used for photocatalytically degradating organic dye rhodamine B and methylene blue.
Compared with prior art, the beneficial effects of the present invention are:
1. the present invention prepares zinc ferrite using simple coprecipitation under normal temperature conditions, a kind of magnetic photocatalytic is obtained
Agent, preparation method is simple, strong operability, and condition is easily controllable, and low in cost, environment compatibility is good, is conducive to industry
Change large-scale production and application；
2. the zinc ferrite magnetic photocatalyst that the method for the present invention is prepared has excellent photocatalysis performance, simulating too
It can effectively degradating organic dye rhodamine B and methylene blue under the irradiation of sunlight；
3. can realize that high efficiente callback and repetitive cycling to this photochemical catalyst use using magnetic separation technique, solves light and urge
Agent is difficult to the problem recycled after, reduces the use cost of catalysis material.
Detailed description of the invention
Fig. 1 is the simulated solar irradiation photocatalytically degradating organic dye rhodamine B of 1,2,3 products therefrom zinc ferrite of embodiment
Photocatalysis performance comparison diagram；
Fig. 2 is that the photocatalysis that 2 products therefrom ferrous acid Zinc form of embodiment carries out five experiments to organic dyestuff rhodamine B is dropped
Solve effect picture.
Fig. 3 is the simulated solar irradiation photocatalytically degradating organic dye methylene blue of 1,2,3 products therefrom zinc ferrite of embodiment
Photocatalysis performance comparison diagram；
Fig. 4 is the photocatalysis that 3 products therefrom ferrous acid Zinc form of embodiment carries out five experiments to organic dyestuff methylene blue
Degradation effect figure.
Specific embodiment
The present invention is described further below with reference to examples and drawings, the scope of protection of present invention is not limited to
In the range of embodiment statement:
Embodiment 1
The preparation method of zinc ferrite magnetic photocatalyst, includes the following steps:
0.01mol Zinc vitriol and 0.02mol Iron(III) chloride hexahydrate are dissolved in deionized water, wherein seven hydrations
The molar ratio of zinc sulfate and Iron(III) chloride hexahydrate is 1:2, and ultrasound is evenly dispersed to all compounds, then with the hydrogen-oxygen of 1mol/L
Changing sodium solution to adjust the pH value of mixed solution is 8, is at room temperature set mixed solution in a round bottom flask, in 80 DEG C of temperature
Lower water-bath 4h finally obtains zinc ferrite magnetic photocatalytic in 60 DEG C of dryings after reaction by product centrifuge washing afterwards for 24 hours
Agent.
Embodiment 2
The preparation method of zinc ferrite magnetic photocatalyst, includes the following steps:
0.02mol Zinc vitriol and 0.04mol Fe(NO3)39H2O are dissolved in deionized water, wherein seven hydration sulphur
The molar ratio of sour zinc and Fe(NO3)39H2O is 1:2, and ultrasound is evenly dispersed to all compounds, then with the sodium hydroxide of 2mol/L
The pH value that solution adjusts mixed solution is 9, at room temperature sets in a round bottom flask mixed solution, is lauched in 70 DEG C of temperature
Bath reaction 4h finally obtains zinc ferrite magnetic photocatalyst in 60 DEG C of dryings after reaction by product centrifuge washing afterwards for 24 hours.
Embodiment 3
The preparation method of zinc ferrite magnetic photocatalyst, includes the following steps:
By 0.03mol Zinc vitriol and 0.06mol ferric sulfate solution in deionized water, wherein Zinc vitriol and
The molar ratio of ferric sulfate is 1:2, and ultrasound is evenly dispersed to all compounds, then adjusts mixing with the sodium hydroxide solution of 4mol/L
The pH value of solution is 10, is at room temperature set mixed solution in a round bottom flask, water-bath 4h at a temperature of 80 DEG C, instead
By product centrifuge washing after answering, zinc ferrite magnetic photocatalyst is finally obtained afterwards for 24 hours in 60 DEG C of dryings.
Fig. 1 is the simulated solar irradiation photocatalytically degradating organic dye rhodamine B of 1,2,3 products therefrom zinc ferrite of embodiment
Performance comparison figure, it can be seen from the figure that embodiment 1,2,3 resulting zinc ferrites can degrade organic dyestuff rhodamine B, implement
The degradable rhodamine B of example 1 needs about 40min, and embodiment 2 needs about 38min, and embodiment 3 needs about 40min, and is not having
The self-degradation rate of rhodamine B is less than 10% under the conditions of photochemical catalyst is existing.It can illustrate from figure, what the method for the present invention obtained
Zinc ferrite magnetic photocatalyst has excellent degradation effect under simulated solar irradiation to organic dyestuff rhodamine B.
Fig. 2 is that the photocatalysis that 2 products therefrom ferrous acid Zinc form of embodiment carries out five experiments to organic dyestuff rhodamine B is dropped
Solve effect picture.In the circulation experiment, zinc ferrite magnetic photocatalyst is separated with externally-applied magnetic field, and with deionized water and second
Alcohol is washed for several times, and is dispersed in organic dyestuff rhodamine B again and is carried out light-catalyzed reaction.Experiments have shown that prepared by embodiment 2
Photochemical catalyst shows excellent photocatalytic activity in the recycling of multiple photocatalytic degradation, until the 6th time circulation according to
Can so degrade 96% rhodamine B, deactivation phenomenom is unobvious in loop test.It can be seen that photochemical catalyst of the invention
It can be recycled for multiple times, repeatability is good, has excellent circulation degradation property and photocatalysis stability.
Fig. 3 is the simulated solar irradiation photocatalytically degradating organic dye methylene blue of 1,2,3 products therefrom zinc ferrite of embodiment
Performance comparison figure, it can be seen from the figure that embodiment 1,2,3 resulting zinc ferrites can degrade organic dyestuff methylene blue,
And methylene blue self-degradation rate is less than 8% under the conditions of existing for no photochemical catalyst.It can illustrate from figure, the method for the present invention
Obtained zinc ferrite magnetic photocatalyst has good photocatalytic activity to organic dyestuff methylene blue under simulated solar irradiation.
Fig. 4 is the photocatalysis that 3 products therefrom ferrous acid Zinc form of embodiment carries out five experiments to organic dyestuff methylene blue
Degradation effect figure, products therefrom zinc ferrite equally have photocatalysis stability to methylene blue.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of preparation method of zinc ferrite magnetic photocatalyst, which comprises the following steps:
Step 1, zinc sulfate or its hydrate and ferric compound are dissolved in deionized water, wherein zinc sulfate or its hydration
The molar ratio of object and ferric compound is 1:2,
Step 2, the pH value for adjusting mixed solution is 8~10, at room temperature by mixed solution water-bath, by water-bath
Product centrifuge washing, up to zinc ferrite magnetic photocatalyst after drying.
2. the preparation method of zinc ferrite magnetic photocatalyst according to claim 1, which is characterized in that in the step 1
Ultrasonic vibration deionized water is until all compounds are evenly dispersed.
3. the preparation method of zinc ferrite magnetic photocatalyst according to claim 1, which is characterized in that the ferric iron
Compound be ferric trichloride or iron chloride hexahydrate, ferric nitrate or nitric hydrate iron, appointing in ferric sulfate or ferric sulfate hydrate
It anticipates one kind.
4. the preparation method of zinc ferrite magnetic photocatalyst according to claim 1, which is characterized in that molten with sodium hydroxide
The pH value that liquid adjusts mixed solution is 8~10, is at room temperature set mixed solution in a round bottom flask, water-bath 4 is small
When.
5. the preparation method of zinc ferrite magnetic photocatalyst according to claim 1, it is characterised in that the hydroxide
The concentration of sodium solution is 1mol/L-4mol/L.
6. the preparation method of zinc ferrite magnetic photocatalyst according to claim 1, it is characterised in that the water-bath is anti-
Answering temperature is 70 DEG C -80 DEG C.
7. a kind of using application of the zinc ferrite magnetic photocatalyst as photochemical catalyst described in claim 1, which is characterized in that will
Zinc ferrite magnetic photocatalyst is used for photocatalytically degradating organic dye rhodamine B and methylene blue.
8. a kind of sewage water treatment method, it is characterised in that utilize zinc ferrite magnetic photocatalyst photocatalytically degradating organic dye Luo Dan
Bright B and methylene blue.
9. a kind of sewage water treatment method according to claim 8, which is characterized in that separate photocatalytic degradation using external magnetic field
Zinc ferrite magnetic photocatalyst after reaction.
10. a kind of sewage water treatment method according to claim 9, which is characterized in that cleaned back with deionized water and ethyl alcohol
Zinc ferrite magnetic photocatalyst after receipts.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113649012A (en) * | 2021-08-23 | 2021-11-16 | 福州大学 | Preparation method and application of carbon-coated zinc ferrite catalyst |
| CN115228510A (en) * | 2022-07-06 | 2022-10-25 | 中南大学 | Conjugated polyvinyl chloride/zinc ferrite composite photocatalyst and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318135A (en) * | 2008-07-03 | 2008-12-10 | 浙江大学 | Method for preparation of visible light responding zinc ferrous acid nanocrystalline colloidal sol |
| CN102728369A (en) * | 2012-06-27 | 2012-10-17 | 盐城工学院 | Preparation method of separating zinc oxide-based photocatalyst by magnetic control |
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| CN105664950A (en) * | 2016-01-04 | 2016-06-15 | 南京林业大学 | Preparation method of nano porous ZnFe2O4 |
| JP2016187766A (en) * | 2015-03-30 | 2016-11-04 | 日本特殊陶業株式会社 | Catalyst material for microwave heating, and catalyzer for microwave heating |
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| CN101318135A (en) * | 2008-07-03 | 2008-12-10 | 浙江大学 | Method for preparation of visible light responding zinc ferrous acid nanocrystalline colloidal sol |
| CN102728369A (en) * | 2012-06-27 | 2012-10-17 | 盐城工学院 | Preparation method of separating zinc oxide-based photocatalyst by magnetic control |
| CN103949259A (en) * | 2014-05-05 | 2014-07-30 | 浙江师范大学 | Preparation and application of novel wastewater treatment agent, ZnFe2O4/TiO2 compound |
| JP2016187766A (en) * | 2015-03-30 | 2016-11-04 | 日本特殊陶業株式会社 | Catalyst material for microwave heating, and catalyzer for microwave heating |
| CN105664950A (en) * | 2016-01-04 | 2016-06-15 | 南京林业大学 | Preparation method of nano porous ZnFe2O4 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113649012A (en) * | 2021-08-23 | 2021-11-16 | 福州大学 | Preparation method and application of carbon-coated zinc ferrite catalyst |
| CN115228510A (en) * | 2022-07-06 | 2022-10-25 | 中南大学 | Conjugated polyvinyl chloride/zinc ferrite composite photocatalyst and preparation method and application thereof |
| CN115228510B (en) * | 2022-07-06 | 2023-12-19 | 中南大学 | Conjugated polyvinyl chloride/zinc ferrite composite photocatalyst and preparation method and application thereof |
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