CN106955716A - A kind of magnetic coupling diatomite material and preparation method thereof - Google Patents
A kind of magnetic coupling diatomite material and preparation method thereof Download PDFInfo
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- CN106955716A CN106955716A CN201710196874.2A CN201710196874A CN106955716A CN 106955716 A CN106955716 A CN 106955716A CN 201710196874 A CN201710196874 A CN 201710196874A CN 106955716 A CN106955716 A CN 106955716A
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- diatomite
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 145
- 239000000463 material Substances 0.000 title claims abstract description 105
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 99
- 230000008878 coupling Effects 0.000 title claims abstract description 78
- 238000010168 coupling process Methods 0.000 title claims abstract description 78
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 78
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 17
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 30
- 239000002131 composite material Substances 0.000 claims description 28
- 150000002696 manganese Chemical class 0.000 claims description 20
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 19
- 239000007864 aqueous solution Substances 0.000 claims description 18
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 18
- 239000002904 solvent Substances 0.000 claims description 12
- 239000012265 solid product Substances 0.000 claims description 11
- 239000012286 potassium permanganate Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 239000012046 mixed solvent Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 30
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 11
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 10
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 7
- 239000002105 nanoparticle Substances 0.000 abstract description 6
- 230000013368 commensalism Effects 0.000 abstract description 4
- 239000000047 product Substances 0.000 description 32
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 15
- 239000005909 Kieselgur Substances 0.000 description 10
- 238000012512 characterization method Methods 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 9
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 9
- 239000000975 dye Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 239000002689 soil Substances 0.000 description 7
- 230000003197 catalytic effect Effects 0.000 description 6
- 238000001035 drying Methods 0.000 description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 238000013019 agitation Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- FDZZZRQASAIRJF-UHFFFAOYSA-M malachite green Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1C(C=1C=CC=CC=1)=C1C=CC(=[N+](C)C)C=C1 FDZZZRQASAIRJF-UHFFFAOYSA-M 0.000 description 2
- 229940107698 malachite green Drugs 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000692870 Inachis io Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- -1 metal oxide forms metal oxide Chemical class 0.000 description 1
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 229960000907 methylthioninium chloride Drugs 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002023 wood Substances 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
-
- 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
- B01J23/84—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 arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J35/33—Electric or magnetic 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
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/612—Surface area less than 10 m2/g
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/46—Metal oxides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Catalysts (AREA)
- Compounds Of Iron (AREA)
Abstract
The invention provides a kind of magnetic coupling diatomite material and preparation method thereof, the magnetic coupling diatomite material includes active component and carrier；The active component is nanometer MnO2And nanometer Fe2O3；The carrier is diatomite；The diatomaceous shell dimension is 10 μm~50 μm, and specific surface area is 1m2/ g~4m2/g.Compared with prior art, the magnetic coupling diatomite material that the present invention is provided is using diatomite as carrier, success loads the nanometer iron and manganese oxides in commensalism, and the load effect of the nanometer iron and manganese oxides is preferable, on the basis of ensureing that product structure is stable, nanoparticle size uniform, controllable, consistent appearance；Also, each component of obtained magnetic coupling diatomite material realizes synergy, makes product while having preferable chemical property and water treatmenting performance.
Description
Technical field
It is to be related to a kind of magnetic coupling diatomite material more specifically the present invention relates to diatomite material technical field
And preparation method thereof.
Background technology
The biological silicalite that diatomite is made up of the siliceous remains of diatom and other microorganisms.Diatomite is because with matter
The premium properties such as gently, voidage is big, bigger serface, adsorptivity is strong, heat endurance is good, fusing point is high and corrosion-resistant, it is extensive
Ground is used as filter aid, functional stuffing, catalyst carrier, agricultural chemicals and fertilizer carrier, heat preserving and insulating material, adsorbent and bleaching material
Material etc..
Although it can be widely used in many industrial circles for unique diatom shell structures shape, with foreign countries compared with
Compared for ripe technology, domestic research still has larger gap still in status that is delayed, falling behind.At present, diatomaceous earth products
It is of low grade, and product variety is relatively simple, the high value added product using super-cell as representative is less, particularly with diatom
Soil is more inadequate for the research that raw material prepares functional material.And the introducing of metal oxide forms metal oxide/tripolite compound
Condensation material, is conducive to improvement diatomite itself variety protection single, the less shortcoming of high value added product, so as to provide with diatom
Soil prepares the new direction of functional material research for raw material, and making full use of for non-renewable high-quality mineral resources can be achieved, will provide
Source advantage becomes economic advantages.
In numerous metal oxides, MnO2With high-energy-density, high-specific surface area, cheap price and to environment
The characteristics such as close friend, are most potential super capacitor materials.At present, using diatomite as carrier, by MnO2It is supported on diatom
On soil, the shortcoming that active material is easily reunited can be effectively improved, the effective ratio area of material is improved, so as to greatly increase
The wetted area and ion laser propagation effect of electrolyte, lift MnO2Energy-storage property.Meanwhile, metal ferriferous oxide is in nature
Iron ore deposit enriches, and the oxide species of iron is various, is also attracted wide attention recently in capacitor material direction, the iron of structure
Manganese composite oxide can utilize two kinds of electric double layer capacitance and pseudo capacitance simultaneously as the electrode material of ultracapacitor
Energy storage mechnism, on the one hand can improve its electric double layer capacitance by providing bigger serface, on the other hand utilize ferrimanganic transition gold
The redox reaction of category element can provide higher pseudo capacitance.
But, how preferably by iron and manganese oxides and composite diatomite, so as to make full use of two kinds of metals and diatomite
Cooperative effect, further expand the application of diatomite/metal oxide composite, improve the added value of diatomaceous earth products,
As those skilled in the art's urgent problem to be solved.
The content of the invention
In view of this, object of the present invention is to provide a kind of magnetic coupling diatomite material and preparation method thereof, this
Invent the magnetic coupling diatomite material provided has preferable chemical property and water treatmenting performance simultaneously.
The invention provides a kind of magnetic coupling diatomite material, including active component and carrier；
The active component is nanometer MnO2And nanometer Fe2O3；
The carrier is diatomite；The diatomaceous shell dimension is 10 μm~50 μm, and specific surface area is 1m2/ g~
4m2/g。
It is preferred that, the mass ratio of the active component and carrier is (30~160)：(30~50).
It is preferred that, nanometer MnO in the active component2And nanometer Fe2O3Mol ratio be (0.3~1.5)：(0.03~
0.13)。
It is preferred that, the nanometer MnO2Size be 30nm~100nm, the nanometer Fe2O3Size for 30nm~
100nm。
Present invention also offers a kind of preparation method of the magnetic coupling diatomite material described in above-mentioned technical proposal, including
Following steps：
A) carrier is mixed with the aqueous solution of manganese salt, carries out hydro-thermal reaction, obtain a nanometer MnO2/ diatomite composite material；
The carrier is diatomite；The diatomaceous shell dimension is 10 μm~50 μm, and specific surface area is 1m2/ g~4m2/g；
B) the nanometer MnO for obtaining step a)2/ diatomite composite material is reacted in a solvent with ferrous salt, is obtained
Solid product；
C) the obtained solid products of step b) are calcined, obtains magnetic coupling diatomite material.
It is preferred that, the amount ratio of carrier and the aqueous solution of manganese salt described in step a) is (30mg~50mg)：30mL；
The molar concentration of the aqueous solution of the manganese salt is 0.01M~0.05M；The manganese salt is potassium permanganate.
It is preferred that, the temperature of hydro-thermal reaction described in step a) is 120 DEG C~160 DEG C, and the time is 2h~24h.
It is preferred that, the amount ratio of ferrous salt and solvent described in step b) is (5mg~20mg)：64mL；
The solvent is the mixed solvent of ethylene glycol and water；The volume ratio of the ethylene glycol and water is (5~10)：1.
It is preferred that, the temperature reacted described in step b) is 80 DEG C~120 DEG C, and the time is 2h~12h.
It is preferred that, the temperature calcined described in step c) is 300 DEG C~400 DEG C, and the time is 2h~6h.
The invention provides a kind of magnetic coupling diatomite material and preparation method thereof, the magnetic coupling diatomite material
Including active component and carrier；The active component is nanometer MnO2And nanometer Fe2O3；The carrier is diatomite；The diatom
The shell dimension of soil is 10 μm~50 μm, and specific surface area is 1m2/ g~4m2/g.Compared with prior art, the magnetic that the present invention is provided
Property compound diatomite material using diatomite as carrier, successful nanometer iron and manganese oxides of the load in commensalism, and described receive
The load effect of rice iron and manganese oxides is preferable, on the basis of ensureing that product structure is stable, nanoparticle size uniform, controllable, shape
Looks are consistent；Also, each component of obtained magnetic coupling diatomite material realizes synergy, make product while having preferably
Chemical property and water treatmenting performance.Test result indicate that, the magnetic coupling diatomite material specific capacitance highest that the present invention is provided
It can reach 70F g-1, after charge and discharge cycles 1000 times, its specific capacitance retention rate is 70% or so；Also, what the present invention was provided
It is good that magnetic coupling diatomite material is used for dyestuff treatment effect as catalyst, and clearance 2h is up to 99%.
Brief description of the drawings
Fig. 1 obtains scanning electron microscope (SEM) photograph of the magnetic coupling diatomite material in low range for the embodiment of the present invention 1；
Fig. 2 obtains scanning electron microscope (SEM) photograph of the magnetic coupling diatomite material in high magnification for the embodiment of the present invention 1；
Fig. 3 obtains scanning electron microscope (SEM) photograph of the magnetic coupling diatomite material in low range for the embodiment of the present invention 2；
Fig. 4 obtains scanning electron microscope (SEM) photograph of the magnetic coupling diatomite material in high magnification for the embodiment of the present invention 2；
Fig. 5 obtains scanning electron microscope (SEM) photograph of the magnetic coupling diatomite material in low range for the embodiment of the present invention 3；
Fig. 6 obtains scanning electron microscope (SEM) photograph of the magnetic coupling diatomite material in high magnification for the embodiment of the present invention 3；
Fig. 7 is the EDS characterization results for the magnetic coupling diatomite material that the embodiment of the present invention 3 is obtained；
Fig. 8 is the XRD characterization results for the magnetic coupling diatomite material that the embodiment of the present invention 3 is obtained；
Fig. 9 is the magnetic property VSM characterization results for the magnetic coupling diatomite material that the embodiment of the present invention 3 is obtained；
Figure 10 is the volt-ampere cyclic curve for the magnetic coupling diatomite material that the embodiment of the present invention 3 is provided；
Figure 11 is the constant current charge and discharge of the different current densities for the magnetic coupling diatomite material that the embodiment of the present invention 3 is provided
Electric curve；
Figure 12 is the ratio electricity under the different current density conditions for the magnetic coupling diatomite material that the embodiment of the present invention 3 is provided
Rong Tu；
Figure 13 is that the current density for the magnetic coupling diatomite material that the embodiment of the present invention 3 is provided is 1A g-1When charge and discharge
Electricity circulation figure；
Figure 14 is the light Fenton catalytic degradation dyestuff (methylene for the magnetic coupling diatomite material that the embodiment of the present invention 3 is provided
Base is blue) waste water results of property；
Figure 15 is the light Fenton catalytic degradation dyestuff (peacock for the magnetic coupling diatomite material that the embodiment of the present invention 3 is provided
Malachite green) waste water results of property.
Embodiment
Below in conjunction with the embodiment of the present invention, technical scheme is clearly and completely described, it is clear that institute
The embodiment of description is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, belongs to this hair
The scope of bright protection.
The invention provides a kind of magnetic coupling diatomite material, including active component and carrier；
The active component is nanometer MnO2And nanometer Fe2O3；
The carrier is diatomite；The diatomaceous shell dimension is 10 μm~50 μm, and specific surface area is 1m2/ g~
4m2/g。
In the present invention, the magnetic coupling diatomite material includes active component and carrier, and the active component is to receive
Rice MnO2And nanometer Fe2O3.In the present invention, the nanometer MnO2With point-of-zero charge is low, specific surface area is big, surface acidity position
The features such as many, voidage height, high adsorption activity, oxidation and high catalytic activity, be a kind of excellent sorbing material and oxidation catalysis
Material, in wider pH value range can with stable existence, in natural water in the presence of surface be rich in a large amount of negative electrical charges, not
Acted on there is obvious removal in medium to various heavy metal ion, organic pollution.In the present invention, the nanometer MnO2's
It is preferably dimensioned to be 30nm~100nm.
In the present invention, the nanometer Fe2O3Had a wide range of applications in water treatment applications, and utilize ferromagnetic material
Magnetic, beneficial to the recovery, processing, cycling and reutilization of water treatment agent material, economic worth is high.In the present invention, it is described to receive
Rice Fe2O3It is preferably dimensioned to be 30nm~100nm.The magnetic coupling diatomite material that the present invention is provided using diatomite as carrier, into
Nanometer MnO of the work(load in commensalism2And nanometer Fe2O3, and the MnO2And nanometer Fe2O3Load effect it is preferable,
On the basis of ensureing that product structure is stable, nanoparticle size uniform, controllable, consistent appearance；Meanwhile, product magnetic property is stable.
In the present invention, the carrier is diatomite；The diatomaceous shell dimension be 10 μm~50 μm, preferably 20
μm~40 μm, more preferably 30 μm；The diatomaceous specific surface area is 1m2/ g~4m2/ g, preferably 2m2/ g~3m2/ g, more
Preferably 2.73m2/g.The present invention is not particularly limited to the diatomaceous source, using well known to those skilled in the art
Commercial goods.
In the present invention, the mass ratio of the active component and carrier is preferably (30~160)：(30~50), more preferably
For (31.3~151.42)：30, most preferably 36.6：30.In the present invention, nanometer MnO in the active component2And nanometer
Fe2O3Mol ratio be preferably (0.3~1.5)：(0.03~0.13), more preferably (0.3~1.5)：0.066, be most preferably
0.3：0.066.
The product that the present invention is provided, due to using diatomite for carrier, can overcome capacitor to exist in electrochemical applications
Structure is swelled and the caused capacity attenuation that caves in cyclic process；And in water treatment applications, the product energy that the present invention is provided
The catalyzing cooperation effect of diatomite and the suction-operated of iron and manganese oxides and two kinds of metals is enough played, and is prevented effectively from Nanoscale Iron
Mn oxide, so as to improve the added value of diatomaceous earth products, expands silicon as the shortcoming of the more readily soluble mistake of water treatment agent material
New application of the diatomaceous earth in terms of new material, functional material, nano material, improves economical while social benefit is increased
Benefit.
Present invention also offers a kind of preparation method of the magnetic coupling diatomite material described in above-mentioned technical proposal, including
Following steps：
A) carrier is mixed with the aqueous solution of manganese salt, carries out hydro-thermal reaction, obtain a nanometer MnO2/ diatomite composite material；
The carrier is diatomite；The diatomaceous shell dimension is 10 μm~50 μm, and specific surface area is 1m2/ g~4m2/g；
B) the nanometer MnO for obtaining step a)2/ diatomite composite material is reacted in a solvent with ferrous salt, is obtained
Solid product；
C) the obtained solid products of step b) are calcined, obtains magnetic coupling diatomite material.
The present invention first mixes carrier with the aqueous solution of manganese salt, carries out hydro-thermal reaction, obtains a nanometer MnO2/ tripolite compound
Condensation material.In the present invention, the carrier is diatomite；The diatomaceous shell dimension is 10 μm~50 μm, preferably 20 μ
M~40 μm, more preferably 30 μm；The diatomaceous specific surface area is 1m2/ g~4m2/ g, preferably 2m2/ g~3m2/ g, more
Preferably 2.73m2/g.The present invention is not particularly limited to the diatomaceous source, using well known to those skilled in the art
Commercial goods.
In the present invention, the amount ratio of the carrier and the aqueous solution of manganese salt is preferably (30mg~50mg)：30mL, it is more excellent
Elect 30mg as：30mL.In the present invention, the molar concentration of the aqueous solution of the manganese salt is preferably 0.01M~0.05M, more preferably
For 0.01M；The manganese salt is preferably potassium permanganate.In a preferred embodiment of the invention, the aqueous solution of the manganese salt is
Molar concentration is 0.01M potassium permanganate solution；In presently preferred embodiment, the aqueous solution of the manganese salt
The potassium permanganate solution for being 0.05M for molar concentration.The present invention is not special to the compound method of the aqueous solution of the manganese salt
Limitation.
In the present invention, the process that carrier is mixed with the aqueous solution of manganese salt is preferably specially：Under agitation
By support dispersion in the aqueous solution of manganese salt；The present invention is not particularly limited to the method for the stirring, using art technology
Mechanical agitation known to personnel or the technical scheme manually stirred, it is therefore an objective to carrier is disperseed in the aqueous solution of manganese salt equal
It is even.In the present invention, the time of the stirring is preferably 5min~15min, more preferably 10min.
Complete after the mixed process, mixed solution is carried out hydro-thermal reaction by the present invention, obtains a nanometer MnO2/ diatom
Soil composite material.In the present invention, the temperature of the hydro-thermal reaction is preferably 120 DEG C~160 DEG C, more preferably 130 DEG C~150
℃；The time of the hydro-thermal reaction is preferably 2h~24h, more preferably 12h~14h.
Complete after the hydro-thermal reaction, the present invention preferably also includes reacted product is cleaned and dried successively,
Obtain a nanometer MnO2/ diatomite composite material.In the present invention, the cleaning is preferred to use water and ethanol cleaning；The drying
Temperature be preferably 50 DEG C~70 DEG C, more preferably 60 DEG C.
Obtain the nanometer MnO2It is of the invention by the nanometer MnO after/diatomite composite material2/ diatomite composite material
Reacted in a solvent with ferrous salt, obtain solid product.In the present invention, the amount ratio of the ferrous salt and solvent is preferred
For (5mg~20mg)：64mL, more preferably 10mg：64mL.In the present invention, the ferrous salt be preferably ferrous sulfate and/or
Frerrous chloride, more preferably ferrous sulfate.In the present invention, the solvent is preferably the mixed solvent of ethylene glycol and water；It is described
The volume ratio of ethylene glycol and water is preferably (5~10)：1, more preferably 7：1.In a preferred embodiment of the invention, use
Amount ratio is 5mg：56mL：8mL FeSO4/ glycol/water solution and the nanometer MnO2/ diatomite composite material carries out anti-
Should；In presently preferred embodiment, amount ratio is used for 20mg：56mL：8mL FeSO4/ glycol/water is molten
Liquid and the nanometer MnO2/ diatomite composite material is reacted；In presently preferred embodiment, using consumption
Than for 10mg：56mL：8mL FeSO4/ glycol/water solution and the nanometer MnO2/ diatomite composite material is reacted.
In the present invention, it is described by nanometer MnO2The mistake that/diatomite composite material is reacted in a solvent with ferrous salt
Cheng Youxuan is specially：Under conditions of stirring, by nanometer MnO2/ diatomite composite material is dispersed in the mixing of ferrous salt and solvent
In solution, then carry out hydro-thermal reaction.The present invention is not particularly limited to the method for the stirring, ripe using those skilled in the art
The mechanical agitation known or the technical scheme manually stirred, it is therefore an objective to carrier is uniformly dispersed in the aqueous solution of manganese salt.
In the present invention, the time of the stirring is preferably 5min~15min, more preferably 10min.
In the present invention, the temperature of the reaction is preferably 80 DEG C~120 DEG C, more preferably 90 DEG C~110 DEG C；It is described anti-
The time answered is preferably 2h~12h, more preferably 6h~8h.
Complete after the reaction, the present invention preferably also includes reacted product is cleaned and dried successively, obtains
Solid product.In the present invention, the cleaning is preferred to use water and ethanol cleaning；The temperature of the drying is preferably 50 DEG C~70
DEG C, more preferably 60 DEG C.
Obtain after the solid product, the present invention is calcined the solid product, obtains magnetic coupling diatomite material
Material.In the present invention, the temperature of the calcining is preferably 300 DEG C~400 DEG C, more preferably 350 DEG C；The time of the calcining is excellent
Elect 2h~6h, more preferably 4h as.
The present invention can be realized nanometer MnO using above-mentioned nanoassemble technology2And nanometer Fe2O3Uniform load is in silicon
In diatomaceous earth, obtained magnetic coupling diatomite material overall structure stabilization, the nanoparticle size uniform, controllable loaded, pattern one
Cause.New method prepared by the magnetic coupling diatomite material, not only improves the grade of diatomite mineral resources, and by diatom
Soil composite material is effectively applied among energy and material and resource environment material, is that current new energy development can with resource environment
Under sustainable development historical background, the new technology highly studied, new method.
The invention provides a kind of magnetic coupling diatomite material and preparation method thereof, the magnetic coupling diatomite material
Including active component and carrier；The active component is nanometer MnO2And nanometer Fe2O3；The carrier is diatomite；The diatom
The shell dimension of soil is 10 μm~50 μm, and specific surface area is 1m2/ g~4m2/g.Compared with prior art, the magnetic that the present invention is provided
Property compound diatomite material using diatomite as carrier, successful nanometer iron and manganese oxides of the load in commensalism, and described receive
The load effect of rice iron and manganese oxides is preferable, on the basis of ensureing that product structure is stable, nanoparticle size uniform, controllable, shape
Looks are consistent；Also, each component of obtained magnetic coupling diatomite material realizes synergy, make product while having preferably
Chemical property and water treatmenting performance.Test result indicate that, the magnetic coupling diatomite material specific capacitance highest that the present invention is provided
It can reach 70F g-1, after charge and discharge cycles 1000 times, its specific capacitance retention rate is 70% or so；Also, what the present invention was provided
It is good that magnetic coupling diatomite material is used for dyestuff treatment effect as catalyst, and clearance 2h is up to 99%.
In order to further illustrate the present invention, it is described in detail below by following examples.Following examples of the present invention
The rotary strainer algae that diatomite used provides for Tianjin great Mao chemical reagent Co., Ltd, and purify and obtain white solid powder
End.
Embodiment 1
(1) 30mg diatomite is dispersed in 30mL 0.01M liquor potassic permanganate, using magnetic stirrer
10min, then carries out hydro-thermal reaction 13h at 140 DEG C, and reacted product is cleaned with water and ethanol, then is dried at 60 DEG C,
Obtain a nanometer MnO2/ diatomite composite material；
(2) by above-mentioned nanometer MnO2/ diatomite composite material is dispersed in amount ratio for 5mg：56mL：8mL FeSO4/ second two
In alcohol/aqueous solution, using magnetic stirrer 10min, hydro-thermal reaction 7h, reacted solid are then carried out at 100 DEG C
Product is cleaned with water and ethanol, then is put into tube furnace after drying at 60 DEG C and is calcined 4h at 350 DEG C, after cooling, obtain magnetic
Compound diatomite material.
The embodiment of the present invention 1 obtains the scanning electron microscope (SEM) photograph of magnetic coupling diatomite material as shown in Fig. 1~2, wherein, Fig. 1
Scanning electron microscope (SEM) photograph of the magnetic coupling diatomite material in low range is obtained for the embodiment of the present invention 1, Fig. 2 is the embodiment of the present invention
1 obtains scanning electron microscope (SEM) photograph of the magnetic coupling diatomite material in high magnification.
Embodiment 2
(1) 30mg diatomite is dispersed in 30mL 0.05M liquor potassic permanganate, using magnetic stirrer
10min, then carries out hydro-thermal reaction 12h at 150 DEG C, and reacted product is cleaned with water and ethanol, then is dried at 60 DEG C,
Obtain a nanometer MnO2/ diatomite composite material；
(2) by above-mentioned nanometer MnO2/ diatomite composite material is dispersed in amount ratio for 20mg：56mL：8mL FeSO4/ second
In glycol/water solution, using magnetic stirrer 10min, hydro-thermal reaction 8h, reacted solid are then carried out at 90 DEG C
Product is cleaned with water and ethanol, then is put into tube furnace after drying at 60 DEG C and is calcined 4h at 350 DEG C, after cooling, obtain magnetic
Compound diatomite material.
The embodiment of the present invention 2 obtains the scanning electron microscope (SEM) photograph of magnetic coupling diatomite material as shown in figs. 34, wherein, Fig. 3
Scanning electron microscope (SEM) photograph of the magnetic coupling diatomite material in low range is obtained for the embodiment of the present invention 2, Fig. 4 is the embodiment of the present invention
2 obtain scanning electron microscope (SEM) photograph of the magnetic coupling diatomite material in high magnification.
Embodiment 3
(1) 30mg diatomite is dispersed in 30mL 0.01M liquor potassic permanganate, using magnetic stirrer
10min, then carries out hydro-thermal reaction 14h at 130 DEG C, and reacted product is cleaned with water and ethanol, then is dried at 60 DEG C,
Obtain a nanometer MnO2/ diatomite composite material；
(2) by above-mentioned nanometer MnO2/ diatomite composite material is dispersed in amount ratio for 10mg：56mL：8mL FeSO4/ second
In glycol/water solution, using magnetic stirrer 10min, then the progress hydro-thermal reaction 6h at 110 DEG C, reacted solid
Body product is cleaned with water and ethanol, then is put into tube furnace after drying at 60 DEG C and is calcined 4h at 350 DEG C, after cooling, obtain magnetic
Property compound diatomite material.
The embodiment of the present invention 3 obtains the scanning electron microscope (SEM) photograph of magnetic coupling diatomite material as shown in Fig. 5~6, wherein, Fig. 5
Scanning electron microscope (SEM) photograph of the magnetic coupling diatomite material in low range is obtained for the embodiment of the present invention 3, Fig. 6 is the embodiment of the present invention
3 obtain scanning electron microscope (SEM) photograph of the magnetic coupling diatomite material in high magnification.Test result indicate that, the diatomaceous housing chi
Very little is 30 μm or so, and abundant macropore, a small amount of mesoporous and micropore are contained in surface, with unique multi-pore channel structure, specific surface area
For 2.73m2/g。
The magnetic coupling silicon obtained using Zeiss Auriga FIB/SEM SEM to the embodiment of the present invention 3
Diatomaceous earth material carries out elementary analysis, characterization result as shown in fig. 7, Fig. 7 is the magnetic coupling diatomite that the embodiment of the present invention 3 is obtained
The EDS characterization results of material.The magnetic coupling silicon obtained using the type X-ray diffraction instrument embodiment of the present invention 3 of D/max 2500
Diatomaceous earth material carries out XRD analysis, characterization result as shown in figure 8, Fig. 8 is the magnetic coupling diatomite that the embodiment of the present invention 3 is obtained
The XRD characterization results of material.The magnetic obtained using PAR-VSM 155R types vibrating specimen magnetometers to the embodiment of the present invention 3 is answered
Close diatomite material and carry out magnetic property VSM analyses, characterization result as shown in figure 9, Fig. 9 is the magnetic that the embodiment of the present invention 3 is obtained
The magnetic property VSM characterization results of compound diatomite material.It follows that the magnetic coupling diatomite that the embodiment of the present invention 3 is provided
Material is using diatomite as carrier, successfully nanometer iron and manganese oxides of the load in commensalism, and the nanometer iron and manganese oxides
Load effect it is preferable, on the basis of ensureing that product structure is stable, nanoparticle size uniform, controllable, consistent appearance；Meanwhile,
Product magnetic property is stable.
Comparative example 1
In the liquor potassic permanganate that 30mg diatomite is dispersed in 30mL 0.01M, using magnetic stirrer 10min,
Then hydro-thermal reaction 14h is carried out at 130 DEG C, reacted solid product is cleaned with water and ethanol, then at 60 DEG C after drying,
It is put into tube furnace and calcines 4h at 350 DEG C, after cooling, obtains the oxide/silicon diatomaceous earth composite of manganese.
Comparative example 2
30mg diatomite is dispersed in amount ratio for 10mg：56mL：8mL FeSO4In/glycol/water solution, using magnetic
Power agitator stirs 10min, and hydro-thermal reaction 6h is then carried out at 110 DEG C, and reacted solid product is cleaned with water and ethanol,
After being dried again at 60 DEG C, it is put into tube furnace and calcines 4h at 350 DEG C, after cooling, obtain the oxide/silicon diatomaceous earth composite wood of iron
Material.
Embodiment 4
The product that embodiment 3, comparative example 1 and comparative example 2 are obtained carries out electrochemical property test respectively：
(1) the magnetic coupling diatomite material for providing embodiment 3 is as electrode activation material, be evenly coated in 1cm ×
In 1.5cm nickel foam, 1M Na is placed in2SO4In electrolyte, connection electrochemical workstation carries out DATA REASONING, as a result such as Figure 10
Shown in~13.Wherein, Figure 10 is the volt-ampere cyclic curve for the magnetic coupling diatomite material that the embodiment of the present invention 3 is provided；Figure 11
The constant current charge-discharge curve of the different current densities of the magnetic coupling diatomite material provided for the embodiment of the present invention 3；Figure 12
Specific capacitance figure under the different current density conditions of the magnetic coupling diatomite material provided for the embodiment of the present invention 3；Figure 13 is
The current density for the magnetic coupling diatomite material that the embodiment of the present invention 3 is provided is 1A g-1When charge and discharge cycles figure.
(2) product obtained using above-mentioned electrochemical property test method to comparative example 1 and comparative example 2 is tested, its
In, the product that comparative example 2 is obtained does not have obvious chemical property；And the every chemical property phase of product that comparative example 1 is obtained
There is also larger gap for chemical property more every than the magnetic coupling diatomite material that the embodiment of the present invention 3 is provided.
By electrochemical property test as shown by data, the magnetic coupling diatomite material that the present invention is provided has good electricity
Hold characteristic and fast charging and discharging performance；Specific capacitance can reach 70F g-1, specific capacitance energy density is 18.5Wh/Kg, power
Density is 500W/Kg, and potential window is 1.8V；And under different current density conditions, the diatomaceous specific capacitance of magnetic coupling
Better than comparative example 1 prepare manganese oxide/silicon diatomaceous earth composite；Also, the magnetic coupling diatomite that the present invention is provided
Material is after charge and discharge cycles 1000 times, and its specific capacitance retention rate is 70% or so, with cyclical stability.
Embodiment 5
The product that embodiment 3, comparative example 1 and comparative example 2 are obtained carries out water treatmenting performance test respectively：
(1) Fenton degradation experiment is carried out in light Fenton experimental provision, takes 250mL conical flasks, and dye strength is 20mg/L,
Volume is 100mL, and the magnetic coupling diatomite material consumption that embodiment 3 is provided is 0.1g/L, oxidant H2O2Addition is
90mM, pH value is neutrality, it is seen that radiant is 500W xenon lamps.After intervals, take out reactant mixture and pass through Magneto separate
Catalyst, carries out concentration mensuration, experimental result is as shown in Figure 14~15 with ultraviolet-uisible spectrophotometer.Wherein, Figure 14 is this
Light Fenton catalytic degradation dyestuff (methylene blue) the waste water performance knot for the magnetic coupling diatomite material that inventive embodiments 3 are provided
Really；Figure 15 is the light Fenton catalytic degradation dyestuff (malachite green) for the magnetic coupling diatomite material that the embodiment of the present invention 3 is provided
Waste water results of property.
(2) product obtained using above-mentioned water treatmenting performance method of testing to comparative example 1 and comparative example 2 is tested, its
In, the product that comparative example 1 is obtained can not carry out Magneto separate, and the product that comparative example 2 is obtained does not have catalytic effect.
Test result indicate that, the magnetic coupling diatomite material that the embodiment of the present invention 3 is provided is used for dyestuff as catalyst
Treatment effect is good, and clearance is up to 99%.
The described above of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.It is right
A variety of modifications of these embodiments will be apparent for those skilled in the art, and as defined herein one
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will
It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with principles disclosed herein and features of novelty
Most wide scope.
Claims (10)
1. a kind of magnetic coupling diatomite material, including active component and carrier；
The active component is nanometer MnO2And nanometer Fe2O3；
The carrier is diatomite；The diatomaceous shell dimension is 10 μm~50 μm, and specific surface area is 1m2/ g~4m2/g。
2. magnetic coupling diatomite material according to claim 1, it is characterised in that the matter of the active component and carrier
Amount is than being (30~160)：(30~50).
3. magnetic coupling diatomite material according to claim 1, it is characterised in that nanometer MnO in the active component2
And nanometer Fe2O3Mol ratio be (0.3~1.5)：(0.03~0.13).
4. magnetic coupling diatomite material according to claim 1, it is characterised in that the nanometer MnO2Size be
30nm~100nm, the nanometer Fe2O3Size be 30nm~100nm.
5. a kind of preparation method of the magnetic coupling diatomite material described in any one of Claims 1 to 4, comprises the following steps：
A) carrier is mixed with the aqueous solution of manganese salt, carries out hydro-thermal reaction, obtain a nanometer MnO2/ diatomite composite material；It is described to carry
Body is diatomite；The diatomaceous shell dimension is 10 μm~50 μm, and specific surface area is 1m2/ g~4m2/g；
B) the nanometer MnO for obtaining step a)2/ diatomite composite material is reacted in a solvent with ferrous salt, obtains solid production
Thing；
C) the obtained solid products of step b) are calcined, obtains magnetic coupling diatomite material.
6. preparation method according to claim 5, it is characterised in that carrier described in step a) and the aqueous solution of manganese salt
Amount ratio is (30mg~50mg)：30mL；
The molar concentration of the aqueous solution of the manganese salt is 0.01M~0.05M；The manganese salt is potassium permanganate.
7. preparation method according to claim 5, it is characterised in that the temperature of hydro-thermal reaction described in step a) is 120
DEG C~160 DEG C, the time is 2h~24h.
8. preparation method according to claim 5, it is characterised in that the amount ratio of ferrous salt and solvent described in step b)
For (5mg~20mg)：64mL；
The solvent is the mixed solvent of ethylene glycol and water；The volume ratio of the ethylene glycol and water is (5~10)：1.
9. preparation method according to claim 5, it is characterised in that the temperature reacted described in step b) is 80 DEG C~
120 DEG C, the time is 2h~12h.
10. preparation method according to claim 5, it is characterised in that the temperature calcined described in step c) is 300 DEG C~
400 DEG C, the time is 2h~6h.
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| CN116099544A (en) * | 2023-02-15 | 2023-05-12 | 广西大学 | Slag-based Fe 2 O 3 /MnO 2 Composite light-Fenton catalyst and preparation method and application thereof |
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| CN108393064A (en) * | 2018-01-23 | 2018-08-14 | 吉林化工学院 | A kind of modification infusorial earth material and preparation method thereof of absorption dyestuff direct scarlet 4BS |
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| CN115121249B (en) * | 2022-05-29 | 2024-03-12 | 北京工业大学 | Preparation method and application of magnetic sodium iron silicate/hematite composite photocatalyst |
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