CN110075780A - Ultralight magnetic mesoporous nanometer frame - Google Patents
Ultralight magnetic mesoporous nanometer frame Download PDFInfo
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- CN110075780A CN110075780A CN201910489678.3A CN201910489678A CN110075780A CN 110075780 A CN110075780 A CN 110075780A CN 201910489678 A CN201910489678 A CN 201910489678A CN 110075780 A CN110075780 A CN 110075780A
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- ultralight
- magnetic mesoporous
- nanometer frame
- mesoporous nanometer
- magnetic
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- 229920002635 polyurethane Polymers 0.000 claims abstract description 41
- 239000004814 polyurethane Substances 0.000 claims abstract description 41
- 239000002243 precursor Substances 0.000 claims abstract description 23
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 20
- DCYOBGZUOMKFPA-UHFFFAOYSA-N iron(2+);iron(3+);octadecacyanide Chemical compound [Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] DCYOBGZUOMKFPA-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229960003351 prussian blue Drugs 0.000 claims abstract description 17
- 239000013225 prussian blue Substances 0.000 claims abstract description 17
- 239000003463 adsorbent Substances 0.000 claims abstract description 16
- 238000001291 vacuum drying Methods 0.000 claims abstract description 14
- 239000003054 catalyst Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 238000011065 in-situ storage Methods 0.000 claims abstract description 8
- 239000002253 acid Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 19
- 229910001385 heavy metal Inorganic materials 0.000 claims description 14
- 150000002500 ions Chemical class 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 7
- HAYXDMNJJFVXCI-UHFFFAOYSA-N arsenic(5+) Chemical compound [As+5] HAYXDMNJJFVXCI-UHFFFAOYSA-N 0.000 claims description 5
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical group [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 4
- 239000005011 phenolic resin Substances 0.000 claims description 4
- 229920001568 phenolic resin Polymers 0.000 claims description 4
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 3
- -1 arsenic ion Chemical class 0.000 claims description 3
- 229910001430 chromium ion Inorganic materials 0.000 claims description 3
- 229910001431 copper ion Inorganic materials 0.000 claims description 3
- BQPIGGFYSBELGY-UHFFFAOYSA-N mercury(2+) Chemical compound [Hg+2] BQPIGGFYSBELGY-UHFFFAOYSA-N 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 2
- 238000002386 leaching Methods 0.000 claims 1
- 238000007598 dipping method Methods 0.000 abstract description 8
- 230000003197 catalytic effect Effects 0.000 abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- 239000011148 porous material Substances 0.000 description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 11
- 239000000126 substance Substances 0.000 description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 9
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 235000019441 ethanol Nutrition 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 239000002159 nanocrystal Substances 0.000 description 4
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 4
- 239000013335 mesoporous material Substances 0.000 description 3
- KJPRLNWUNMBNBZ-QPJJXVBHSA-N (E)-cinnamaldehyde Chemical compound O=C\C=C\C1=CC=CC=C1 KJPRLNWUNMBNBZ-QPJJXVBHSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- SHZIWNPUGXLXDT-UHFFFAOYSA-N ethyl hexanoate Chemical compound CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000002336 sorption--desorption measurement Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000010148 water-pollination Effects 0.000 description 2
- WBYWAXJHAXSJNI-VOTSOKGWSA-M .beta-Phenylacrylic acid Natural products [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- WBYWAXJHAXSJNI-SREVYHEPSA-N Cinnamic acid Chemical compound OC(=O)\C=C/C1=CC=CC=C1 WBYWAXJHAXSJNI-SREVYHEPSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 244000187664 Nerium oleander Species 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 230000032683 aging Effects 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229930016911 cinnamic acid Natural products 0.000 description 1
- 235000013985 cinnamic acid Nutrition 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
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- 229940079593 drug Drugs 0.000 description 1
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- 239000012467 final product Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010353 genetic engineering Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0251—Compounds of Si, Ge, Sn, Pb
- B01J20/0255—Compounds of Pb
-
- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28009—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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28078—Pore diameter
- B01J20/28083—Pore diameter being in the range 2-50 nm, i.e. mesopores
-
- 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
- B01J23/74—Iron group metals
- B01J23/745—Iron
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- 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
- B01J35/613—10-100 m2/g
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- 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
- B01J35/615—100-500 m2/g
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- 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
- B01J35/64—Pore diameter
- B01J35/647—2-50 nm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- 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
- B01J35/64—Pore diameter
- B01J35/657—Pore diameter larger than 1000 nm
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- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Nanotechnology (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention provides a kind of ultralight magnetic mesoporous nanometer frames, for being used as adsorbent to use in mixture system, or for being used in heterogeneous catalytic system as catalyst, it has the feature that, ultralight magnetic mesoporous nanometer frame is prepared by following methods: step 1 dissolves presoma with acid solution to obtain precursor solution；Carrier is immersed in precursor solution, was heated under the first predetermined temperature for the first predetermined time by step 2, and carrier and vacuum drying after taking out dipping obtain the assembly with carrier and presoma；Step 3, assembly is heat-treated, to remove carrier and precursor in situ is made to be converted into three-dimensional magnetic mesoporous iron oxide, the magnetic mesoporous iron oxide is as ultralight magnetic mesoporous nanometer frame, wherein, presoma is that prussian blue nano is brilliant, and carrier is three-dimensional polyurethane sponge, and the mass volume ratio of presoma and carrier is 127mg:30cm3~212mg:30cm3。
Description
Technical field
The invention belongs to materials science fields, and in particular to a kind of ultralight magnetic mesoporous nanometer frame.
Background technique
Porous material is a kind of by being mutually communicated or closed hole constitutes the material of network structure.Compare table by higher
The characteristic that area, good pore structure, lower density and shape can be cut, three-dimensional (3D) porous material become catalyst and its
Carrier gas storage, is absorbed and is separated, environmental improvement, new energy development, drug conveying, the neck such as genetic engineering and bioengineering
The research hotspot in domain.Nearly all density is lower than 0.16mg/cm3Three-dimensional porous material, such as with aeroge, sponge, mesh
Or silica, carbon and metal existing for crystallite case form form etc., it may serve to prepare this ultralight three-dimensional porous material.
Different from the ultralight large pore material of tradition, mesoporous material is the porous material that a major class has special construction.Mesoporous material
Expect the aperture with 2nm~50nm, uniform meso-hole structure is usually by after progress organic and inorganic assembling between precursor and template
It is gone obtained by removing template again.Large pore material and mesoporous material are combined to the advanced skill for having become and preparing various layering porous structures
One of art, but not studies have reported that having the ultra-light cellular material with aeroge or foam similar density.
Summary of the invention
The present invention is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide a kind of ultralight magnetic mesoporous nanometer frame
Frame.
The present invention provides a kind of ultralight magnetic mesoporous nanometer frames, for making in mixture system as adsorbent
With, or for being used in heterogeneous catalytic system as catalyst, have the feature that, ultralight magnetic mesoporous nanometer frame
Be prepared by following methods: step 1 dissolves presoma with acid solution to obtain precursor solution；Step 2 soaks carrier
Enter in precursor solution, heated under the first predetermined temperature for the first predetermined time, carrier and vacuum drying after taking out dipping obtain
To the assembly with carrier and presoma；Assembly is heat-treated by step 3, to remove carrier and make presoma
Converted in-situ is three-dimensional magnetic mesoporous iron oxide, and the magnetic mesoporous iron oxide is as ultralight magnetic mesoporous nanometer frame, wherein
Presoma is that prussian blue nano is brilliant, and carrier is three-dimensional polyurethane sponge, and the mass volume ratio of presoma and carrier is 127mg:
30cm3~212mg:30cm3。
It in ultralight magnetic mesoporous nanometer frame provided by the invention, can also have the following features: wherein, three-dimensional is poly-
The aperture of urethane sponge is 600 μm~1250 μm.
In ultralight magnetic mesoporous nanometer frame provided by the invention, it can also have the following features: wherein, step 3
In, process that assembly is heat-treated are as follows:
Assembly is heated to 350 DEG C~450 DEG C in air with 1 DEG C/min~3 DEG C/min heating rate, and permanent
Warm continuous heating 2h~4h.
In ultralight magnetic mesoporous nanometer frame provided by the invention, it can also have the following features: wherein, step 2
In, the first predetermined temperature is 80 DEG C~88 DEG C, and the first predetermined time was 40h~60h, and vacuum drying temperature is 35 DEG C~45
DEG C, the vacuum drying time is 10 h~14h.
In ultralight magnetic mesoporous nanometer frame provided by the invention, ultralight magnetic Jie can also have the following features:
The specific surface area of hole nanometer frame is 90m2/ g~117m2/ g, density 6mg/cm3~11mg/cm3。
In ultralight magnetic mesoporous nanometer frame provided by the invention, it can also have the following features: wherein, ultralight magnetic
Property meso-porous nano frame as adsorbent carry out heavy metal separation the following steps are included:
Ultralight magnetic mesoporous nanometer frame is placed in solution or sewage containing heavy metal ion, magnetic field pair is then utilized
The ultralight magnetic mesoporous nanometer frame for having adsorbed heavy metal ion is collected.
In ultralight magnetic mesoporous nanometer frame provided by the invention, it can also have the following features: wherein, heavy metal
Ion is the one or more of the heavy metal ion such as arsenic ion, chromium ion, copper ion, mercury ion.
In ultralight magnetic mesoporous nanometer frame provided by the invention, it can also have the following features: wherein, ultralight magnetic
Property meso-porous nano frame as adsorbent carry out water-oil separation the following steps are included:
Hydrophobic medium is coated in the surface of ultralight magnetic mesoporous nanometer frame, it is ultralight magnetic mesoporous to obtain hydrophobicity
Nanometer frame；The ultralight magnetic mesoporous nanometer frame of hydrophobicity is placed in water oil mixture again, then using magnetic field to absorbing
The ultralight magnetic mesoporous nanometer frame of hydrophobicity of oil in water oil mixture is collected.
In ultralight magnetic mesoporous nanometer frame provided by the invention, it can also have the following features: wherein, medium is
Phenolic resin.
In ultralight magnetic mesoporous nanometer frame provided by the invention, it can also have the following features: wherein, ultralight magnetic
Property meso-porous nano frame use in water phase and an oil phase catalyst system as catalyst.
The action and effect of invention
Ultralight magnetic mesoporous nanometer frame involved according to the present invention should because it is prepared by following methods
Method is using prussian blue nano crystalline substance as presoma, using three-dimensional material as carrier, after carrier is immersed precursor solution,
It was heated under the first predetermined temperature for the first predetermined time, carrier and vacuum drying after taking out dipping obtain assembly, then will
Assembly is heat-treated to obtain ultralight magnetic mesoporous nanometer frame, also, during the preparation process, the quality volume of presoma and carrier
Than for 127mg:30cm3~212mg:30cm3.Therefore, ultralight magnetic mesoporous nanometer frame specific surface area with higher, has
The macropore and meso-hole structure of classification have ultralow density, and then are highly suitable in mixture system using as adsorbent,
Or it is used in heterogeneous catalytic system as catalyst.
In addition, ultralight magnetic mesoporous nanometer frame of the invention uses in mixture system as adsorbent, Huo Zhe
It is used repeatedly as catalyst in use, being able to carry out in heterogeneous catalytic system.
Detailed description of the invention
Fig. 1 is the XRD spectra of the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention one；
Fig. 2 is the XPS data spectrogram of the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention one；
Fig. 3 is the photo that the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention one is placed on alcolhol burner flame；
Fig. 4 is the macropore and mesoporous distribution map of the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention one~tri-；
Fig. 5 is the nitrogen adsorption desorption curve figure of the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention one~tri-
Spectrum；
Fig. 6 is that the Scalability of the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention two can scheme；
Fig. 7 is the XRD diagram of the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention one~tri-；
Fig. 8 is the digital photograph of the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention four；
Fig. 9 is that the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention five carries out surface-functionalized modified figure；
Figure 10 is the magnetic capture figure of the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention six；
Figure 11 is that the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention seven is consolidating-water-oil three-phase mixed system
Adsorption experiment figure；And
Figure 12 is application of the ultralight magnetic mesoporous nanometer frame in heterogeneous catalytic system in the embodiment of the present invention eight.
Specific embodiment
Ultralight magnetic mesoporous nanometer frame in the present invention is prepared by following methods, method includes the following steps:
Step 1 dissolves presoma with acid solution to obtain precursor solution.Wherein, presoma is that prussian blue nano is brilliant
(K4Fe(CN)6·3H2O), acid solution is the hydrochloric acid solution of 0.05M.
Step 2, by carrier according to the mass volume ratio of presoma and carrier be 127mg:30 cm3~212mg:30cm3's
Ratio immerses in precursor solution, at this point, carrier is submerged by precursor solution completely.Then by carrier and precursor solution
Heated under the first predetermined temperature for the first predetermined time, carrier and vacuum drying after taking out dipping, obtain with carrier and
The assembly of presoma.Wherein, carrier is three-dimensional polyurethane sponge.First predetermined temperature is 80 DEG C~88 DEG C, and described first is pre-
It fixes time as 40h~60h.Vacuum drying temperature is 35 DEG C~45 DEG C, and the vacuum drying time is 10h~14h.
Assembly is heat-treated by step 3, to remove carrier and precursor in situ is made to be converted into three-dimensional magnetism
Mesoporous iron oxide, to obtain ultralight magnetic mesoporous nanometer frame.The process of heat treatment are as follows: by assembly in air with 1 DEG C/
Min~3 DEG C/min heating rate is heated to 350 DEG C~450 DEG C, and constant temperature continuous heating 2h~4h.
The specific surface area of ultralight magnetic mesoporous nanometer frame of the invention is 90m2The m of/g~1172/ g, density 6mg/cm3
~11mg/cm3。
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
Example combination attached drawing is applied to be specifically addressed the ultralight magnetic mesoporous nanometer frame of the present invention.
<embodiment one>
Ultralight magnetic mesoporous nanometer frame in embodiment one is prepared by following methods, and this method includes following step
It is rapid:
Step 1, by 127mg K4Fe(CN)6·3H2O is added in the container for filling 80mL hydrochloric acid solution (0.05M),
Uniform stirring 1h, obtains precursor solution.K4Fe(CN)6·3H2O has Cubic (α-Po) network topology structure, and size is equal
It is even, sharp edges.
Step 2, by 30cm3(540mg) three-dimensional polyurethane sponge is slowly immersed in and is immersed in precursor solution, then
Container is put into baking oven and heats 48h at 85 DEG C.After heating, the three-dimensional polyurethane sponge after impregnating is taken out, this three
Tieing up polyurethane sponge has prussian blue nano crystal coating.The three-dimensional polyurethane sponge after dipping is placed in vacuum drying oven again
Dry 12h, obtains the assembly with three-dimensional polyurethane sponge and prussian blue nano crystalline substance at 40 DEG C.
Wherein, three-dimensional polyurethane sponge is the polyurethane sponge with three-dimensional structure, and the aperture of three-dimensional polyurethane sponge is
600 μm~1250 μm.
Assembly is heated to 350 DEG C DEG C in air with the heating rate of 1 DEG C/min by step 3, and constant temperature persistently adds
Hot 3h, thus remove three-dimensional polyurethane sponge and make the magnetic mesoporous iron oxide of prussian blue nano crystalline substance converted in-situ three-dimensional,
Obtain the ultralight magnetic mesoporous nanometer frame with layering macropore and central hole structure.
It include iron (such as Fig. 2 of oxygen and different chemical valences in ultralight magnetic mesoporous nanometer frame (such as Fig. 1) in the present embodiment
It is shown).
Fig. 3 shows that ultralight magnetic mesoporous nanometer frame has very high thermal stability, i.e., when it is exposed in Alcohol Flame
When (400 DEG C~600 DEG C, depending on the part of flame), form and pore structure structure can be intact.
The density of ultralight magnetic mesoporous nanometer frame passes through the ratio between weight and geometric volume (weight including entrapped air)
It is calculated.The density of ultralight magnetic mesoporous nanometer frame in this implementation is 11mg/cm3。
Fig. 4 is the macropore and mesoporous distribution map of ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention one~tri-.
Ultralight magnetic mesoporous nanometer frame in the present embodiment has the macropore and meso-hole structure of classification.As shown in figure 4, real
It is similar to apply the macropore of ultralight magnetic mesoporous nanometer frame and mesoporous distribution map in example one~tri-, as shown in Fig. 4 (a).Embodiment
The macropore diameter of ultralight magnetic mesoporous nanometer frame is 250 μm (Fig. 4 a) in one, and mesoporous pore size is 18nm (Fig. 4 b).
Fig. 5 is the nitrogen adsorption desorption curve figure of the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention one~tri-
Spectrum.
As shown in figure 5, the specific surface area of the ultralight magnetic mesoporous nanometer frame in this implementation is 93m2/g。
<embodiment two>
Ultralight magnetic mesoporous nanometer frame in embodiment two is prepared by following methods, and this method includes following step
It is rapid:
Step 1, by 127mg K4Fe(CN)6·3H2O is added in the container for filling 80mL hydrochloric acid solution (0.05M),
Uniform stirring 1h, obtains precursor solution.K4Fe(CN)6·3H2O has Cubic (α-Po) network topology structure, and size is equal
It is even, sharp edges.
Step 2, by 30cm3(540mg) three-dimensional polyurethane sponge is slowly immersed in and is immersed in precursor solution, then
Container is put into baking oven and heats 48h at 85 DEG C.After heating, the three-dimensional polyurethane sponge after impregnating is taken out, this three
Tieing up polyurethane sponge has prussian blue nano crystal coating.The three-dimensional polyurethane sponge after dipping is placed in vacuum drying oven again
Dry 12h, obtains the assembly with three-dimensional polyurethane sponge and prussian blue nano crystalline substance at 40 DEG C.
Wherein, three-dimensional polyurethane sponge is the polyurethane sponge with three-dimensional structure, and the aperture of three-dimensional polyurethane sponge is
600 μm~1250 μm.
Assembly is heated to 400 DEG C, and constant temperature continuous heating in air with the heating rate of 1 DEG C/min by step 3
3h is obtained to remove three-dimensional polyurethane sponge and make the magnetic mesoporous iron oxide of prussian blue nano crystalline substance converted in-situ three-dimensional
To the ultralight magnetic mesoporous nanometer frame with layering macropore and central hole structure.
The density for the ultralight magnetic mesoporous nanometer frame that the present embodiment is prepared is 8mg/cm3。
The ultralight magnetic mesoporous nanometer frame that the present embodiment is prepared has the macropore and meso-hole structure of classification, macropore hole
Diameter is 250 μm, and mesoporous pore size is 14.1nm (Fig. 4 b).As shown in figure 5, the specific surface area of ultralight magnetic mesoporous nanometer frame is
105m2/g。
Fig. 6 is that the Scalability of the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention two can scheme.
As shown in fig. 6, the ultralight magnetic mesoporous nanometer frame in this implementation has good Scalability energy, it can be easily
It is cut into the miscellaneous shape such as rectangle, triangle, circle.
<embodiment three>
Ultralight magnetic mesoporous nanometer frame in embodiment three is prepared by following methods, and this method includes following step
It is rapid:
Step 1, by 127mg K4Fe(CN)6·3H2O is added in the container for filling 80mL hydrochloric acid solution (0.05M),
Uniform stirring 1h, obtains precursor solution.K4Fe(CN)6·3H2O has Cubic (α-Po) network topology structure, and size is equal
It is even, sharp edges.
Step 2, by 30cm3(540mg) three-dimensional polyurethane sponge is slowly immersed in and is immersed in precursor solution, then
Container is put into baking oven and heats 48h at 85 DEG C.After heating, the three-dimensional polyurethane sponge after impregnating is taken out, this three
Tieing up polyurethane sponge has prussian blue nano crystal coating.The three-dimensional polyurethane sponge after dipping is placed in vacuum drying oven again
Dry 12h, obtains the assembly with three-dimensional polyurethane sponge and prussian blue nano crystalline substance at 40 DEG C.
Wherein, three-dimensional polyurethane sponge is the polyurethane sponge with three-dimensional structure, and the aperture of three-dimensional polyurethane sponge is
600 μm~1250 μm.
Assembly is heated to 450 DEG C, and constant temperature continuous heating in air with the heating rate of 1 DEG C/min by step 3
3h is obtained to remove three-dimensional polyurethane sponge and make the magnetic mesoporous iron oxide of prussian blue nano crystalline substance converted in-situ three-dimensional
To the ultralight magnetic mesoporous nanometer frame with layering macropore and central hole structure.
The density for the ultralight magnetic mesoporous nanometer frame that the present embodiment is prepared is 6mg/cm3。
The specific surface area for the ultralight magnetic mesoporous nanometer frame that the present embodiment is prepared is 117 m2/g.Ultralight magnetic Jie
Hole nanometer frame has the macropore and meso-hole structure of classification, and macropore diameter is 250 μm, and mesoporous pore size is 18.3nm (Fig. 4 b).
Fig. 7 is the XRD figure of ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention one~tri-.
As shown in fig. 7, (i) in Fig. 7 indicates ultralight magnetic mesoporous nanometer frame in embodiment one, (ii) table in Fig. 7
Show ultralight magnetic mesoporous nanometer frame in embodiment two, (iii) in Fig. 7 indicates ultralight magnetic mesoporous nanometer frame in embodiment three
Frame.As seen from Figure 7, embodiment one, embodiment two, the crystallinity of ultralight magnetic mesoporous nanometer frame in embodiment three are got over
Come it is higher, this show by change heat treatment temperature, the ultralight magnetic mesoporous oxidation iron frame of different crystallinity can be obtained
Frame.
<example IV>
Ultralight magnetic mesoporous nanometer frame in example IV is prepared by following methods, and this method includes following step
It is rapid:
Step 1, by 1270mg K4Fe(CN)6·3H2O is added in the container for filling 800mL hydrochloric acid solution (0.05M),
Uniform stirring 1h, obtains precursor solution.K4Fe(CN)6·3H2O has Cubic (α-Po) network topology structure, and size is equal
It is even, sharp edges.
Step 2, by 240cm3The three-dimensional polyurethane sponge of (4320mg) is slowly immersed in and is immersed in precursor solution,
Then container is put into baking oven and heats 48h at 85 DEG C.After heating, the three-dimensional polyurethane sponge after impregnating is taken out,
The three-dimensional polyurethane sponge has prussian blue nano crystal coating.The three-dimensional polyurethane sponge after dipping is placed in vacuum drying oven again
In at 40 DEG C dry 12h, obtain the assembly with three-dimensional polyurethane sponge and prussian blue nano crystalline substance.
Wherein, three-dimensional polyurethane sponge is the polyurethane sponge with three-dimensional structure, and the aperture of three-dimensional polyurethane sponge is
600 μm~1250 μm.
Assembly is heated to 400 DEG C, and constant temperature continuous heating in air with the heating rate of 1 DEG C/min by step 3
3h is obtained to remove three-dimensional polyurethane sponge and make the magnetic mesoporous iron oxide of prussian blue nano crystalline substance converted in-situ three-dimensional
To the ultralight magnetic mesoporous nanometer frame with layering macropore and central hole structure.
The density for the ultralight magnetic mesoporous nanometer frame that the present embodiment is prepared is 8mg/cm3。
The specific surface area for the ultralight magnetic mesoporous nanometer frame that the present embodiment is prepared is 105 m2/g.Ultralight magnetic Jie
Hole nanometer frame has the macropore and meso-hole structure of classification, and macropore diameter is 250 μm, mesoporous pore size 14nm.
Fig. 8 is the digital photograph of the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention four.
Fig. 8 (a) is the photo of ultralight magnetic mesoporous nanometer frame, and Fig. 8 (b) is will be by 240 cm3It is ultralight magnetic mesoporous to receive
Rice frame is placed on the photo on Oleander flower, and Fig. 8 (c) is the photo that ultralight magnetic mesoporous nanometer frame is cut out, Fig. 8
(d) it is used as the photo of traditional filtering column packing for ultralight magnetic mesoporous nanometer frame, Fig. 8 (e) is ultralight magnetic mesoporous nanometer frame
Frame is placed on the photo on sharp cutter.Ultralight magnetic mesoporous nanometer frame in this implementation it can be seen from Fig. 8 (c) is super
Light structure, and there is good Scalability energy.
<embodiment five>
The present embodiment is to pass through the simply side of coating using water-soluble and low molecular weight (< 500) phenolic resin as presoma
Ultralight magnetic mesoporous nanometer framework functions in embodiment one are turned to hydrophobic ultralight magnetic mesoporous nanometer frame by method.
Specific step is as follows:
Under the conditions of about 40 DEG C, 0.61g phenol is melted in flask, and under stiring with the NaOH of 20wt%
The mixing of (0.13g) solution.After ten minutes, at 50 DEG C, formalin (1.05g, 37wt%) is added dropwise into flask.With
Afterwards, after futher stirring 1h at 70 DEG C, mixture is cooled to room temperature.PH to 7.0 is adjusted with HCl (0.6M) solution, then
Moisture removal is removed with 50 DEG C of vacuum drying.Final product (phenol/formaldehyde/sodium hydroxide molar ratio=1:2:0.1) is dissolved in
In ethyl alcohol.The weight average molecular weight of weight alcohol is measured with gel permeation chromatography (GPC).Dropwise will containing 0.09g resorcinol and
Homogeneous resorcinol/ethanol solution (0.45g, 20wt%) of 0.36g ethyl alcohol is added to 25cm3Ultralight magnetic mesoporous nanometer frame
In frame.Then ultralight magnetic mesoporous nanometer frame is dried at room temperature for 8-12h, at 100 DEG C aging for 24 hours, in 600 DEG C of argon gas
3h, gas flow rate 60cm are pyrolyzed in atmosphere3/ min, the rate of heat addition are 1 DEG C/min.After being cooled to room temperature, finally obtain hydrophobic
The ultralight magnetic mesoporous nanometer frame of property.
Fig. 9 is that the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention five carries out surface-functionalized modified figure.
The hydrophily and hydrophobicity of ultralight three-dimensional meso-hole nanometer frame material are characterized with the size of water contact angle, as a result such as
Shown in Fig. 9, Fig. 9 (d) indicates that the water contact angle of ultralight magnetic mesoporous nanometer frame, Fig. 9 (e) indicate surface-functionalized modified
The water contact angle of the ultralight magnetic mesoporous nanometer frame of hydrophobicity, Fig. 9 (e) are that the ultralight magnetic mesoporous nanometer frame of hydrophobicity is placed in water
In picture.As shown in Figure 9, the ultralight three-dimensional manometer frame after modifying phenolic resin is changed into hydrophobicity by hydrophily.
<embodiment six>
The present embodiment be using the ultralight magnetic mesoporous nanometer frame in embodiment one as adsorbent heavy metal separate in
Application experiment.All adsorption experiments are completed at room temperature.
Ultralight magnetic mesoporous nanometer frame as adsorbent heavy metal separation in application, can effectively arsenic-adsorbing from
The heavy metal ion such as son, chromium ion, copper ion, mercury ion it is one or more.The present embodiment is with the adsorption experiment of arsenic ion
Example, is described in detail.
Experimentation are as follows:
The powder of the ultralight magnetic mesoporous nanometer frame of 35mg is dispersed in the 25mL with variable concentrations (0.1-50ppm)
In arsenic ion soln.After magnetic field is collected, the residual concentration of arsenic is measured, obtains absorption change curve.
Figure 10 is the magnetic capture figure of the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention six.
As shown in Figure 10, ultralight magnetic mesoporous nanometer frame can quickly be collected by magnetic field.Also, ultralight magnetic Jie
Hole nanometer frame can be effectively separated the arsenic in arsenic ion soln as adsorbent.
In addition, ultralight magnetic mesoporous nanometer frame carries out in heavy metal separation in application, ultralight magnetism as adsorbent
Meso-porous nano frame can reuse tens of times.
<embodiment seven>
The present embodiment is using the ultralight magnetic mesoporous nanometer frame of the hydrophobicity in embodiment five as adsorbent in water oil
Application experiment from.All adsorption experiments are completed at room temperature.
Experimentation are as follows:
The ultralight magnetic mesoporous nanometer frame sample of hydrophobicity is put into the water oil being mixed by gasoline, diesel oil, pump oil and water
In mixture.After absorbing several seconds, it is collected with magnetic field.By absorbing, oil mass (moil) and hydrophobicity are ultralight magnetic mesoporous to be received
The ratio of rice frame (mf) (K=moil/mf) evaluates the absorbability (K) of ultralight magnetic mesoporous nanometer frame.
Figure 11 is that the ultralight magnetic mesoporous nanometer frame in the embodiment of the present invention seven is consolidating-water-oil three-phase mixed system
Adsorption experiment figure.
As shown in figure 11, ultralight magnetic mesoporous nanometer frame can effectively absorb the oil in water oil mixture.
In addition, the ultralight magnetic mesoporous nanometer frame of hydrophobicity carries out in water-oil separation in application, hydrophobic as adsorbent
Property ultralight magnetic mesoporous nanometer frame can reuse tens of times.
<embodiment eight>
The present embodiment is using the ultralight magnetic mesoporous nanometer frame in embodiment one as catalyst in heterogeneous catalytic system
In application experiment benzene first is prepared as raw material using Natural cinnamyl aldehyde in the classical anti-aldehyde condensation reaction system of water phase and an oil phase
Aldehyde, as shown in figure 12.All adsorption experiments are completed at room temperature.
Experimentation are as follows:
By the ultralight magnetic mesoporous nanometer frame of 0.50g and 2.64g (0.02mol) cinnamic acid, 20g ethyl acetate and 20g water
(contain 10%Na2CO3) mixing, and 20h is stirred at 105 DEG C.Using ethyl acetate/water/10%Na2CO3, ethyl hexanoate/water/
10%Na2CO3, benzene/water/10%Na2CO3, n-hexane/water/10%Na2CO3Natural cinnamyl aldehyde is carried out etc. a variety of organic aqueous systems
Anti- aldehyde aldolisation.Benzaldehyde product is extracted using the way of distillation.Catalyst is recycled using magnet, and in water-oil two phase reaction
Middle reuse.
Ultralight magnetic mesoporous nanometer frame carries out in water-oil biphase catalytic system in application, ultralight magnetic as adsorbent
Property meso-porous nano frame can reuse ten more than five times.
Above embodiment is preferred case of the invention, the protection scope being not intended to limit the invention.
Claims (10)
1. a kind of ultralight magnetic mesoporous nanometer frame is used to use in mixture system as adsorbent, or for more
It is used in phase catalyst system as catalyst, which is characterized in that ultralight magnetic mesoporous nanometer frame is prepared by following methods:
Step 1 dissolves presoma with acid solution to obtain precursor solution；
Step 2 immerses carrier in the precursor solution, heats under the first predetermined temperature for the first predetermined time, takes out leaching
The carrier after stain is simultaneously dried in vacuo, and obtains the assembly with the carrier and the presoma；
The assembly is heat-treated by step 3, to remove the carrier and the precursor in situ is made to be converted into three
The magnetic mesoporous iron oxide of dimension, the magnetic mesoporous iron oxide as ultralight magnetic mesoporous nanometer frame,
Wherein, the presoma is that prussian blue nano is brilliant, and the carrier is three-dimensional polyurethane sponge, the presoma with it is described
The mass volume ratio of carrier is 127mg:30cm3~212mg:30cm3。
2. ultralight magnetic mesoporous nanometer frame according to claim 1, it is characterised in that:
Wherein, the aperture of the three-dimensional polyurethane sponge is 600 μm~1250 μm.
3. ultralight magnetic mesoporous nanometer frame according to claim 1, it is characterised in that:
Wherein, in step 3, process that the assembly is heat-treated are as follows:
The assembly is heated to 350 DEG C~450 DEG C, and constant temperature in air with 1 DEG C/min~3 DEG C/min heating rate
Continuous heating 2h~4h.
4. ultralight magnetic mesoporous nanometer frame according to claim 1, it is characterised in that:
Wherein, in step 2, first predetermined temperature is 80 DEG C~88 DEG C, and first predetermined time is 40h~60h, very
The dry temperature of sky is 35 DEG C~45 DEG C, and the vacuum drying time is 10h~14h.
5. ultralight magnetic mesoporous nanometer frame according to claim 1, it is characterised in that: the ultralight magnetic mesoporous nanometer
The specific surface area of frame is 90m2/ g~117m2/ g, density 6mg/cm3~11mg/cm3。
6. ultralight magnetic mesoporous nanometer frame according to claim 1, it is characterised in that:
Wherein, the ultralight magnetic mesoporous nanometer frame as adsorbent carry out heavy metal separation the following steps are included:
The ultralight magnetic mesoporous nanometer frame is placed in solution or sewage containing heavy metal ion, magnetic field pair is then utilized
The ultralight magnetic mesoporous nanometer frame for having adsorbed the heavy metal ion is collected.
7. ultralight magnetic mesoporous nanometer frame according to claim 6, it is characterised in that:
Wherein, the heavy metal ion is the one or more of the heavy metal ion such as arsenic ion, chromium ion, copper ion, mercury ion.
8. ultralight magnetic mesoporous nanometer frame according to claim 1, it is characterised in that:
Wherein, the ultralight magnetic mesoporous nanometer frame as adsorbent carry out water-oil separation the following steps are included:
Hydrophobic medium is coated in the surface of the ultralight magnetic mesoporous nanometer frame, it is ultralight magnetic mesoporous to obtain hydrophobicity
Nanometer frame；The ultralight magnetic mesoporous nanometer frame of the hydrophobicity is placed in water oil mixture again, then using magnetic field to suction
The ultralight magnetic mesoporous nanometer frame of the hydrophobicity for having received the oil in the water oil mixture is collected.
9. ultralight magnetic mesoporous nanometer frame according to claim 8, it is characterised in that:
Wherein, the medium is phenolic resin.
10. ultralight magnetic mesoporous nanometer frame according to claim 1, it is characterised in that:
Wherein, the ultralight magnetic mesoporous nanometer frame uses in water phase and an oil phase catalyst system as catalyst.
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| CN111774085A (en) * | 2020-07-10 | 2020-10-16 | 复旦大学 | Transition metal carbide/metal organic framework compound and super-assembly preparation method thereof |
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