CN109663594A - It is a kind of that MgFe is prepared using non-hydrolytic sol-gel process2O4The method of/C-material and its material obtained - Google Patents
It is a kind of that MgFe is prepared using non-hydrolytic sol-gel process2O4The method of/C-material and its material obtained Download PDFInfo
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- CN109663594A CN109663594A CN201910060895.0A CN201910060895A CN109663594A CN 109663594 A CN109663594 A CN 109663594A CN 201910060895 A CN201910060895 A CN 201910060895A CN 109663594 A CN109663594 A CN 109663594A
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- 239000000463 material Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000003301 hydrolyzing effect Effects 0.000 title claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000001699 photocatalysis Effects 0.000 claims abstract description 15
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 14
- 239000011777 magnesium Substances 0.000 claims abstract description 14
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000001879 gelation Methods 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 238000003980 solgel method Methods 0.000 claims abstract description 7
- 239000003960 organic solvent Substances 0.000 claims abstract description 5
- 238000006068 polycondensation reaction Methods 0.000 claims abstract description 4
- 239000002243 precursor Substances 0.000 claims abstract description 3
- 238000004321 preservation Methods 0.000 claims abstract description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Natural products CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 17
- 238000007146 photocatalysis Methods 0.000 claims description 13
- 235000019441 ethanol Nutrition 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical group ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 9
- 150000002148 esters Chemical class 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- 229960004756 ethanol Drugs 0.000 claims description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical group CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 5
- 150000002576 ketones Chemical class 0.000 claims description 5
- -1 magnesium alkoxide Chemical class 0.000 claims description 5
- XDKQUSKHRIUJEO-UHFFFAOYSA-N magnesium;ethanolate Chemical group [Mg+2].CC[O-].CC[O-] XDKQUSKHRIUJEO-UHFFFAOYSA-N 0.000 claims description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 4
- 150000001350 alkyl halides Chemical class 0.000 claims description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 4
- 150000002170 ethers Chemical class 0.000 claims description 4
- 150000007524 organic acids Chemical class 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 3
- 125000000962 organic group Chemical group 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical group CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 claims description 2
- AQBNSUGIFRIQSL-UHFFFAOYSA-N acetyl acetate;magnesium Chemical compound [Mg].CC(=O)OC(C)=O AQBNSUGIFRIQSL-UHFFFAOYSA-N 0.000 claims description 2
- HCTJCAORMLSTGD-UHFFFAOYSA-N formic acid;magnesium Chemical compound [Mg].OC=O HCTJCAORMLSTGD-UHFFFAOYSA-N 0.000 claims description 2
- JUDGILXVLDXGHJ-UHFFFAOYSA-N iron;methanol Chemical compound [Fe].OC JUDGILXVLDXGHJ-UHFFFAOYSA-N 0.000 claims description 2
- RGDXATQMQZIAAX-UHFFFAOYSA-N iron;propan-2-ol Chemical compound [Fe].CC(C)O RGDXATQMQZIAAX-UHFFFAOYSA-N 0.000 claims description 2
- CRGZYKWWYNQGEC-UHFFFAOYSA-N magnesium;methanolate Chemical compound [Mg+2].[O-]C.[O-]C CRGZYKWWYNQGEC-UHFFFAOYSA-N 0.000 claims description 2
- ORPJQHHQRCLVIC-UHFFFAOYSA-N magnesium;propan-2-olate Chemical compound CC(C)O[Mg]OC(C)C ORPJQHHQRCLVIC-UHFFFAOYSA-N 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- 125000005909 ethyl alcohol group Chemical group 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 7
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000006555 catalytic reaction Methods 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 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 description 6
- 230000015556 catabolic process Effects 0.000 description 6
- 238000006731 degradation reaction Methods 0.000 description 6
- 229960000907 methylthioninium chloride Drugs 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- HJOVHMDZYOCNQW-UHFFFAOYSA-N isophorone Chemical compound CC1=CC(=O)CC(C)(C)C1 HJOVHMDZYOCNQW-UHFFFAOYSA-N 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 2
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(iii) oxide Chemical compound O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000445 field-emission scanning electron microscopy Methods 0.000 description 2
- MHKWSJBPFXBFMX-UHFFFAOYSA-N iron magnesium Chemical compound [Mg].[Fe] MHKWSJBPFXBFMX-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 229910002915 BiVO4 Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- MCPLVIGCWWTHFH-UHFFFAOYSA-L methyl blue Chemical compound [Na+].[Na+].C1=CC(S(=O)(=O)[O-])=CC=C1NC1=CC=C(C(=C2C=CC(C=C2)=[NH+]C=2C=CC(=CC=2)S([O-])(=O)=O)C=2C=CC(NC=3C=CC(=CC=3)S([O-])(=O)=O)=CC=2)C=C1 MCPLVIGCWWTHFH-UHFFFAOYSA-L 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910000161 silver phosphate Inorganic materials 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
- B01J23/78—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 alkali- or alkaline earth metals
-
- B01J35/39—
Abstract
MgFe is prepared using non-hydrolytic sol-gel process the invention discloses a kind of2O4The method of/C-material and its material obtained, feature include the following steps: for magnesium source and source of iron to be dissolved in organic solvent；Then cause non-hydrolytic polycondensation reaction in certain temperature heat preservation and form colloidal sol；Then gelation processing is carried out to colloidal sol and obtains aqueous precursor gel；Then it after gel abrasive being handled, is heat-treated in certain temperature and obtains MgFe2O4/ C-material.This method is low in cost, environmentally protective, simple process, short preparation period and is suitable for large-scale production, while MgFe obtained2O4/ C-material has recoverable and high visible photocatalytic activity, and the feasibility of practical application is high, has broad application prospects.
Description
Technical field
The invention belongs to catalysis material preparation fields, and in particular to a kind of using non-hydrolytic sol-gel process preparation
MgFe2O4The method of/C-material and its material obtained.
Background technique
Environment and the energy are 21 century facing mankind and significant problem urgently to be resolved, and photocatalysis technology is with its room temperature depth
It reacts and can become a kind of ideal environmental pollution directly using solar energy as light source come special performances such as drive responses and control
Reason technology and clear energy sources production technology.Catalysis material then refers to that the photochemistry occurred under the action of light by the material is anti-
Answer required a kind of semiconductor catalyst material.In recent years, the semiconductor light-catalyst of most study is TiO2；But due to its band
Gap is wider (Eg=3.2eV), and accounting in sunlight can only be absorbed and utilized and only have 3%~5% ultraviolet light (λ < 387nm) to carry out light
Catalysis reaction.Therefore exploitation under visible light (accounting 43% in sunlight) with highlight catalytic active catalysis material at
For the hot spot of photocatalysis research.Currently, expanding the optical response range of photochemical catalyst, its quantum effect and the benefit to sunlight are improved
With rate, mainly set about in terms of two: first is that existing TiO2Catalysis material is modified, such as doping N and C element, with
And using containing N and C-material and TiO2It is prepared into composite material, but its visible light catalysis activity is still unsatisfactory.
Second is that research novel visible catalysis material.Some novel visible light catalytic materials have been seen in report.Such as Bi2O3、
Bi2WO6、BiVO4、Ag3PO4Deng.These materials are mostly the more expensive oxide of cost, composite oxides, while being also faced with use
When be difficult to the problem of recycling and reusing.MgFe2O4The appearance of catalysis material solves what visible-light photocatalysis material was difficult to recycle
Problem, while also reducing the cost of this kind of materials.However MgFe2O4Forbidden bandwidth be 2.2 eV, absorption be limited to
563.6 nm still have larger a part of visible light MgFe2O4It can not absorb, overall efficiency is still lower.
For catalysis material, improving the visible light-responded of photochemical catalyst is directly to improve material overall efficiency most
Effective ways.With the appearance of the grapheme material of zero band gap, photochemical catalyst and the compound of graphene also change as photochemical catalyst
Into the research hotspot in field, but the homogeneity question of cost and composite material is still the fatal bottleneck that current this kind of material faces.
In conclusion urgent need exploitation visible light optical response range is wide, photoelectric conversion efficiency is high, it is seen that light photocatalysis performance
It is good, recycle easy visible-light photocatalyst.
Summary of the invention
It is an object of the invention to overcome disadvantage existing in the prior art, a kind of low in cost, environmentally protective, work is provided
Skill simplicity, recoverable, short preparation period are simultaneously suitable for preparing using non-hydrolytic sol-gel process for large-scale production
MgFe2O4The method of/C-material and its material obtained.
In order to solve the above technical problems, the technical scheme is that it is a kind of using non-hydrolytic sol-gel process preparation
MgFe2O4The method of/C-material, feature include the following steps:
Step 1: magnesium source and source of iron are dissolved in organic solvent；
Step 2: cause non-hydrolytic polycondensation reaction in certain temperature heat preservation and form colloidal sol；
Step 3: gelation processing is carried out to colloidal sol and obtains aqueous precursor gel；
Step 4: it after gel abrasive is handled, is heat-treated in certain temperature and obtains MgFe2O4/ C-material.
Magnesium source in the step 1 is magnesium alkoxide or anhydrous low-carbon organic acid magnesium.
The magnesium alkoxide is one of magnesium ethylate, magnesium methoxide, magnesium isopropoxide；The anhydrous low-carbon organic acid magnesium is anhydrous
One of magnesium acetate, anhydrous formic acid magnesium.
Source of iron in the step 1 is ferrite.
The ferrite is one of ethyl alcohol iron, methanol iron, isopropanol iron.
Organic solvent in the step 1 is low-carbon alcohols or esters or alkyl halide or ethers or ketone.
The low-carbon alcohols are one of dehydrated alcohol, isopropanol, n-butanol；The esters are ethyl acetate, mixing two
One of first acid esters；The alkyl halide is one of methylene chloride, chloroform, carbon tetrachloride；The ethers is ether, isopropyl
One of ether, n-butyl ether；The ketone is one of acetone, cyclohexanone, isophorone.
The temperature that colloidal sol is formed in the step 2 is 50~130 DEG C, soaking time 2h；It is heat-treated in the step 4
Temperature be 250~550 DEG C；Gelation mode in the step 3 is convection drying or reflux or appearance bullet processing.
Above-mentioned MgFe2O4/ C-material has recyclable, visible light photocatalysis performance.
The MgFe2O4C in/C-material is introduced by organic group in presoma.
The invention has the beneficial effects that: it is a kind of that MgFe is prepared using non-hydrolytic sol-gel process2O4The side of/C-material
Method and its material obtained, the catalysis material is by MgFe2O4It is combined with C, and material is due to solidifying using non-hydrolytic sol-
The preparation of glue method, presoma direct polycondensation form gel, and C is introduced by organic group remaining in gel, to make MgFe2O4Reach with C
Atom level uniformly mixes, and the presence of C can not only be with MgFe2O4Combination level is formed, MgFe is made2O4The absorption of material is limited by 564
Nm (2.2 eV) further red shift makes composite material have higher efficiency higher；Meanwhile C can also export photoproduction electricity in time
Son and hole, improve the photocatalysis performance of material.MgFe2O4Theoretical forbidden bandwidth be 2.2 eV, absorb limit in visible region,
For 564nm.The introducing of C can not only be with MgFe2O4Combination level is formed, so that the absorption of material is limited red shift, to absorb wider range
Visible light, improve photoelectricity efficiency；Export light induced electron and hole in time are additionally aided, the photocatalysis performance of material is improved；Together
When MgFe2O4/ C-material has recoverable and high visible photocatalytic activity, and the feasibility of practical application is high, has wide
Application prospect.
Detailed description of the invention
Attached drawing 1 is process flow chart of the invention；
Attached drawing 2 is the XRD spectrum of the made sample of the embodiment of the present invention 1；
Attached drawing 3 is the FE-SEM picture and sample elemental map of the made sample of the embodiment of the present invention 1；
Attached drawing 4 is the absorption spectrum of the made sample of the embodiment of the present invention 2.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Preferred embodiment, to proposed according to the present invention a kind of using non-hydrolytic sol-gel process preparation MgFe2O4The side of/C-material
Method and its specific embodiment of material obtained, method, step, feature and its effect, detailed description are as follows:
Embodiment 1:
It is that 1:2 weighs magnesium iron presoma by magnesium iron molar ratio, 50 mL dehydrated alcohols is measured in glove box, are poured into conical flask,
9.15 g(0.08 mol are added) magnesium ethylate, add to mix to magnesium ethylate and dissolve；100 mL dehydrated alcohols separately are taken, pour into another taper
In bottle, 30.56 g(0.16 mol are added) ethyl alcohol iron, stirring to ethyl alcohol dissolved ferric iron；Ethyl alcohol ferrous solution is added in ethyl alcohol magnesium solution
In, 60 DEG C of heating stirring 2h obtain glassy yellow vitreosol；Colloidal sol obtains orange red gel by 80 DEG C of reflux for 24 hours, removes molten
Xerogel is obtained after agent；Aterrimus MgFe is obtained through 500 DEG C of heat treatments after grinding2O4/ C-material.
0.05g catalyst is taken, 100 mL initial concentrations of addition are 5 mg/L methylene blue solutions, are irradiated under fluorescent tube
90 min, to the degradation rate of methylene blue up to 96.2%.
Fig. 2 gives the XRD spectrum of sample, and Fig. 3 gives the FE-SEM picture and sample elemental map picture of sample,
Fig. 4 gives the Dis- of sample.
Embodiment 2:
By 9.15 g(0.08 mol in embodiment 1) magnesium ethylate, it is changed to 11.37 g(0.08 mol) acetic anhydride magnesium；Solvent
Dehydrated alcohol changes mixed dibasic acid ester (DBE) into；Gelation reflux temperature is changed to 130 DEG C；Heat treatment temperature is changed to 550 DEG C,
Its condition is constant, obtains aterrimus MgFe2O4/ C-material.Under the same photocatalysis test condition of embodiment 1, to methylene blue
Degradation rate is up to 95.8%.
Embodiment 3:
Change the solvent absolute ethyl alcohol in embodiment 1 into n-butyl ether；Heat treatment temperature is changed to 300 DEG C, and other conditions are constant, obtains
Aterrimus MgFe2O4/ C-material.Under the same photocatalysis test condition of embodiment 1, to the degradation rate of methylene blue up to 98.7%.
Embodiment 4:
Change the solvent absolute ethyl alcohol in embodiment 1 into isophorone；Gelation reflux temperature is changed to 100 DEG C；Heat treatment temperature
300 DEG C are changed to, other conditions are constant, obtain aterrimus MgFe2O4/ C-material.Under the same photocatalysis test condition of embodiment 1,
To the degradation rate of methylene blue up to 98.2%.
Embodiment 5:
Gelation reflux in embodiment 1 is changed to drying；Heat treatment temperature is changed to 300 DEG C, and other conditions are constant, obtains aterrimus
MgFe2O4/ C-material.Under the same photocatalysis test condition of embodiment 1, to the degradation rate of methylene blue up to 95.3%.
Embodiment 6
Change solvent absolute ethyl alcohol in embodiment 1 into methylene chloride；Gelation reflux, which is changed to, holds bullet processing；Heat treatment temperature is changed to
300 DEG C, other conditions are constant, obtain aterrimus MgFe2O4/ C-material.Under the same photocatalysis test condition of embodiment 1, to Asia
The degradation rate of methyl blue is up to 96.2%.
Claims (10)
1. a kind of prepare MgFe using non-hydrolytic sol-gel process2O4The method of/C-material, feature include the following steps:
Step 1: magnesium source and source of iron are dissolved in organic solvent；
Step 2: cause non-hydrolytic polycondensation reaction in certain temperature heat preservation and form colloidal sol；
Step 3: gelation processing is carried out to colloidal sol and obtains aqueous precursor gel；
Step 4: it after gel abrasive is handled, is heat-treated in certain temperature and obtains MgFe2O4/ C-material.
2. according to the method described in claim 1, it is characterized by: the magnesium source in the step 1 is magnesium alkoxide or anhydrous low-carbon
Organic acid magnesium.
3. according to the method described in claim 2, it is characterized by: the magnesium alkoxide is magnesium ethylate, in magnesium methoxide, magnesium isopropoxide
One kind；The anhydrous low-carbon organic acid magnesium is one of acetic anhydride magnesium, anhydrous formic acid magnesium.
4. according to the method described in claim 1, it is characterized by: the source of iron in the step 1 is ferrite.
5. according to the method described in claim 4, it is characterized by: the ferrite is ethyl alcohol iron, in methanol iron, isopropanol iron
One kind.
6. according to the method described in claim 1, it is characterized by: the organic solvent in the step 1 is low-carbon alcohols or esters
Or alkyl halide or ethers or ketone.
7. according to the method described in claim 6, it is characterized by: the low-carbon alcohols are dehydrated alcohol, in isopropanol, n-butanol
One kind；The esters are one of ethyl acetate, mixed dibasic acid ester；The alkyl halide is methylene chloride, chloroform, tetrachloro
Change one of carbon；The ethers is one of ether, isopropyl ether, n-butyl ether；The ketone is acetone, cyclohexanone, different fluorine
One of your ketone.
8. according to the method described in claim 1, it is characterized by: the temperature for forming colloidal sol in the step 2 is 50~130
DEG C, soaking time 2h；The temperature being heat-treated in the step 4 is 250~550 DEG C；Gelation mode in the step 3
For convection drying or reflux or hold bullet processing.
9. material obtained method according to claim 1, it is characterised in that: the MgFe2O4/ C-material have it is recyclable,
Visible light photocatalysis performance.
10. material made from method according to claim 9, it is characterised in that: the MgFe2O4C in/C-material is by forerunner
Organic group introduces in body.
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2019
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| Title |
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| HUI LI等: ""Synthesis and characterisation of MgAl2O4 spinel nanopowders"", 《JOURNAL OF THE CERAMIC SOCIETY OF JAPAN》 * |
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