CN106064101A - A kind of iron-based MOFs catalysis material and preparation and application thereof - Google Patents
A kind of iron-based MOFs catalysis material and preparation and application thereof Download PDFInfo
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- 238000006555 catalytic reaction Methods 0.000 title claims abstract description 48
- 239000000463 material Substances 0.000 title claims abstract description 47
- 239000013082 iron-based metal-organic framework Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 230000003197 catalytic effect Effects 0.000 claims abstract description 5
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims abstract description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims abstract description 3
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 24
- 239000002244 precipitate Substances 0.000 claims description 10
- 239000012043 crude product Substances 0.000 claims description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 7
- 230000004913 activation Effects 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000001291 vacuum drying Methods 0.000 claims description 6
- 239000005416 organic matter Substances 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- 238000007654 immersion Methods 0.000 claims 1
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims 1
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 claims 1
- 239000012855 volatile organic compound Substances 0.000 abstract description 16
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- -1 ferrous metals Chemical class 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 238000009825 accumulation Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000012621 metal-organic framework Substances 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 230000001699 photocatalysis Effects 0.000 description 12
- 238000007146 photocatalysis Methods 0.000 description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 6
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000011941 photocatalyst Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- SYWDWCWQXBUCOP-UHFFFAOYSA-N benzene;ethene Chemical group C=C.C1=CC=CC=C1 SYWDWCWQXBUCOP-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000002336 sorption--desorption measurement Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B01J35/39—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/22—Organic complexes
- B01J31/2204—Organic complexes the ligands containing oxygen or sulfur as complexing atoms
- B01J31/2208—Oxygen, e.g. acetylacetonates
- B01J31/2226—Anionic ligands, i.e. the overall ligand carries at least one formal negative charge
- B01J31/223—At least two oxygen atoms present in one at least bidentate or bridging ligand
- B01J31/2239—Bridging ligands, e.g. OAc in Cr2(OAc)4, Pt4(OAc)8 or dicarboxylate ligands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/70—Non-metallic catalysts, additives or dopants
- B01D2255/705—Ligands for metal-organic catalysts
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
- B01J2531/0213—Complexes without C-metal linkages
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/84—Metals of the iron group
- B01J2531/842—Iron
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a kind of ferrous metals organic backbone (MOFs) catalysis material and preparation method and application.Described iron-based MOFs catalysis material is by FeCl3·6H2After O and p-phthalic acid are dissolved in DMF solution, under temperature programmed control, carry out hydro-thermal reaction, the solid of precipitation is carried out successively alcohol and washes, filter, be vacuum dried and obtain.This catalysis material not only has absorption and the accumulation ability of excellence to Organic substance volatility (VOCs), and can degrade efficiently VOCs under visible ray drives, and can be used for the reaction system of VOCs light catalytic purifying in air.Preparation method of the present invention has that technique is simple, environmental friendliness, reaction condition gentle, catalytic efficiency is high, do not produce the features such as secondary pollution, it is easy to large-scale promotion in field of environment protection.
Description
Technical field
The invention belongs to photocatalysis technology field, particularly to ferrous metals organic backbone (MOFs) catalysis material and system
Preparation Method, and the application in control atmosphere pollution volatile organic matter.
Background technology
Along with quickly propelling of industrialization and urbanization, the air pollution of China is on the rise.Various air pollutants
In, volatile organic matter (Volatile organic compounds, VOCs) as an important polluter of atmospheric pollution,
There is low concentration, highly toxic feature, seriously threaten human health and the sustainable development of society, caused the Chinese government,
The public and the extensive concern of researcher.
The most emerging photocatalysis oxidation technique, is expected to directly utilize sunlight by VOCs under the effect of photocatalyst
Finally it is oxidized to CO2And H2O, have simultaneously can the advantages such as Oxidation at room temperature, energy consumption be low, easy to operate it is considered to be most before application
The VOCs Treatment process of scape.And the research and development of high efficiency low cost photocatalyst are core and the keys realizing the application of this technology.At present
The semiconductor light-catalyst developed generally utilizes only to account in sunlight and lives less than just showing to be catalyzed under the ultraviolet excitation of 5%
Property；Further, since most of semiconductor catalysts have less specific surface area so that it is can not effectively adsorb in real atmosphere
The VOCs pollutant (generally ppbv to ppmv level) of low concentration, thus cause photochemical catalytic oxidation efficiency to be substantially reduced.The tightest
Heavily limit semi-conducting material to directly utilize sunlight and carry out the application of photocatalytic degradation VOCs.Therefore, semi-conducting material is widened
Photoresponse scope, improve its photocatalytic activity and become focus and the difficult point of this area research.
Fe2O3Can (about 2.2eV) photocatalysis as a kind of narrow band gap nontoxic, cheap, that chemical stability is good
Agent, the maximum absorption wave of its photoresponse is up to about 600nm, it is possible to directly utilize the visible ray in solar spectrum as exciting light
Drive redox reaction, and have been used for the aspect such as the visible light photocatalytic degradation of organic pollution, photodissociation Aquatic product hydrogen.So
And, due to Fe2O3The problem such as have that photo-generated carrier recombination rate is high and conduction band positions is relatively low so that it is typically exhibit relatively low can
See photocatalytic activity.But can be by reducing Fe2O3Particle diameter, improve high dispersive type and the specific surface area of catalysis material simultaneously,
With reduce electron-hole compound, improve catalyst and to mass transfer and the absorbability of substrate molecule thus increase photo-generated carrier
With the contact probability of adsorbed substrate, it is expected to obviously improve Fe2O3Visible light catalysis activity.But, how to prepare small particle,
High dispersive and the efficient Fe of Large ratio surface2O3Catalysis material remains a challenge.
Summary of the invention
It is an object of the invention to the deficiency overcoming prior art to exist, primary and foremost purpose is to provide and a kind of has both excellent suction
The preparation method of attached ferrous metals organic backbone (MOFs) catalysis material with photocatalysis performance.
It is a further object of the present invention to provide the iron-based MOFs catalysis material that said method prepares.
Another object of the present invention is to provide above-mentioned iron-based MOFs catalysis material at visible light photocatalytic degradation low concentration
Application in VOCs.
Above-mentioned purpose of the present invention is achieved by the following technical programs:
The preparation method of a kind of iron-based MOFs catalysis material, comprises the steps:
S1. by FeCl3·6H2Join in DMF solution after O and p-phthalic acid mixing, be stirred at room temperature, obtain mixing molten
Liquid A；
S2. the mixed solution A of step S1 gained is loaded in the polytetrafluoroethyllining lining hydrothermal reaction kettle of 5～200mL,
React 10～100h, after being cooled to room temperature at 80～180 DEG C, collect precipitate, obtain the crude product of iron-based MOFs catalysis material；
S3. the crude product of the iron-based MOFs catalysis material of step S2 gained is joined in ethanol solution, at 30～100 DEG C
Soak, the pressed powder vacuum dried 10～20h obtained after filtration, i.e. obtain the iron-based MOFs catalysis material of activation.
Preferably, the FeCl described in step S13·6H2The mol ratio of O: p-phthalic acid: DMF is 1:(0.1～20): (20
～500).
Preferably, the time that is stirred at room temperature described in step S1 is 0.5～3h.
Preferably, the cooldown rate described in step S2 is 0.05～3 DEG C/min.
Preferably, the soak time described in step S3 is 8～24h.
Preferably, the vacuum drying temperature described in step S3 is 60～180 DEG C.
It addition, the iron-based MOFs catalysis material prepared of said method and volatility in visible light catalytic Cleaning Air thereof
Organic application is also within protection scope of the present invention.
Preferably, styrene is had the absorption of highly significant and efficient photocatalysis to live by this iron-based MOFs catalysis material
Property.
The iron-based MOFs material of the present invention possessed can high efficiency photocatalysis degraded low concentration VOCs three essential condition: its
One, this iron-based MOFs material has absorption and the richness of the highest specific surface area and bigger porosity, beneficially low concentration VOCs
Collection, carries out providing favourable microenvironment for light-catalyzed reaction；Its two, this iron-based MOFs is by Fe3+With in p-phthalic acid
Oxygen atom ligand assembles, the confinement a large amount of extra small Fe in iron-based MOFs framework3-μ3-oxo(Fe2O3) bunch be remarkably improved
Expose avtive spot；Its three, pore passage structure that iron-based MOFs is orderly and built the pi-electron confession bulk effect that part is formed by it, have
It is beneficial to the migration of light induced electron, the separation efficiency of photo-generate electron-hole can be effectively improved, may advantageously facilitate entering of light-catalyzed reaction
OK.
Compared with prior art, the method have the advantages that
1. the iron-based MOFs catalysis material that the present invention prepares has both the advantage that excellent absorption is collaborative with photocatalysis.
This photocatalyst is by p-phthalic acid and Fe3+A kind of porous material assembled, it not only has bigger serface and height
The feature of porosity, beneficially low concentration VOCs absorption and enrichment, and its construction unit Fe3-μ3-oxo(Fe2O3) bunch it is light
Catalytic reaction provides substantial amounts of avtive spot, increases the contact probability of photo-generated carrier and adsorbed substrate, favorably
In significantly improving visible light catalysis activity.
2., under visible ray drives, this iron-based MOFs catalysis material VOCs capable of being fast degraded, is that efficient photocatalysis is anti-
Answer system.Test result indicate that, iron-based MOFs catalysis material to typical case VOCs gas-phase benzene ethylene show good absorption and
Photocatalytic activity, in 10min, styrene has 96.1% to be adsorbed onto rapidly on catalysis material, just inhales through about 900min
Attached penetrate；After adsorption desorption balances, under the irradiation of visible ray, in 35min, iron-based MOFs catalysis material is to cinnamic
Degradation rate reaches 95.8%.
3. to have that power consumption is low, operation safety, response speed soon, do not produce secondary pollution etc. excellent for the preparation method of the present invention
Point, it is easy to accomplish industrialization.
Accompanying drawing explanation
Fig. 1 is iron-based MOFs catalysis material adsorption curve cinnamic to gas phase.
Fig. 2 is iron-based MOFs catalysis material kinetics of photocatalytic degradation cinnamic to gas phase curve.
Detailed description of the invention
Further illustrate present disclosure below in conjunction with Figure of description and specific embodiment, but should not be construed as this
The restriction of invention.If not specializing, the conventional hands that technological means used in embodiment is well known to those skilled in the art
Section.Unless stated otherwise, the present invention uses reagent, method and apparatus are the art conventional reagent, method and apparatus.
Embodiment 1
S1. it is the FeCl of 2:1 by mol ratio3·6H2O and p-phthalic acid join in 30mL DMF solution, are stirred at room temperature
1h, obtains orange-yellow clear solution.
S2. the clear solution of step S1 gained is loaded in the hydrothermal reaction kettle of 100mL, at 110 DEG C, react 24h；With
After the rate of temperature fall of 0.1 DEG C/min is cooled to room temperature, collects precipitate, obtain the crude product of iron-based MOFs catalysis material.
S3. being immersed in ethanol solution by the precipitate of step S2 gained, 60 DEG C are soaked 15h, by being filtrated to get solution
In pressed powder；150 DEG C of vacuum drying 12h, i.e. can obtain the iron-based MOFs catalysis material of activation.
Embodiment 2
S1. it is the FeCl of 1:1 by mol ratio3·6H2O and p-phthalic acid join in 30mL DMF solution, are stirred at room temperature
2h, obtains orange-yellow clear solution.
S2. the clear solution of step S1 gained is loaded in the hydrothermal reaction kettle of 100mL, at 150 DEG C, react 20h；With
After the rate of temperature fall of 0.5 DEG C/min is cooled to room temperature, collects precipitate, obtain the crude product of iron-based MOFs catalysis material；
S3. being immersed in ethanol solution by the precipitate of step S2. gained, 60 DEG C are soaked 15h, by being filtrated to get solution
In pressed powder；120 DEG C of vacuum drying 15h, i.e. can obtain the iron-based MOFs catalysis material of activation.
Embodiment 3
S1. it is the FeCl of 2:1 by mol ratio3·6H2O and p-phthalic acid join in 30mL DMF solution, are stirred at room temperature
1.5h, obtains orange-yellow clear solution.
S2. the clear solution of step S1 gained is loaded in the hydrothermal reaction kettle of 100mL, at 150 DEG C, react 24h；With
After the rate of temperature fall of 1.0 DEG C/min is cooled to room temperature, collects precipitate, obtain the crude product of iron-based MOFs catalysis material.
S3. being immersed in ethanol solution by the precipitate of step S2. gained, 80 DEG C are soaked 12h, by being filtrated to get solution
In pressed powder；150 DEG C of vacuum drying 12h, i.e. can obtain the iron-based MOFs catalysis material of activation.
Embodiment 4
S1. it is the FeCl of 1:10 by mol ratio3·6H2O and p-phthalic acid join in 40mL DMF solution, and room temperature is stirred
Mix 1.5h, obtain orange-yellow clear solution.
S2. the clear solution of step S1 gained is loaded in the hydrothermal reaction kettle of 100mL, at 140 DEG C, react 80h；With
After the rate of temperature fall of 0.05 DEG C/min is cooled to room temperature, collects precipitate, obtain the crude product of iron-based MOFs catalysis material.
S3. being immersed in ethanol solution by the precipitate of step S2. gained, 80 DEG C are soaked 12h, by being filtrated to get solution
In pressed powder；130 DEG C of vacuum drying 15h, i.e. can obtain the iron-based MOFs catalysis material of activation.
Fig. 1 is iron-based MOFs catalysis material adsorption curve cinnamic to gas phase.As seen from Figure 1, iron-based MOFs
Catalysis material shows good absorption and photocatalytic activity to typical case's VOCs gas-phase benzene ethylene, and the styrene of 96.1% exists
Quickly adsorbed on catalysis material in 10min, just reached complete adsorption penetration through about 900min；Fig. 2 is iron-based MOFs light
The kinetic curve of catalysis material photocatalytic degradation cinnamic to gas phase.Figure it is seen that after adsorption desorption balances,
Under the irradiation of visible ray, in 35min, iron-based MOFs material reaches 95.8% to cinnamic degradation rate.The above results shows, should
Catalysis material is a kind of efficient surrounding purifying material, has good absorption-photocatalysis cooperative effect.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-described embodiment
Limit, the change made under other any spirit without departing from the present invention and principle, modify, substitute, combine, simplify,
All should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (8)
1. the preparation method of an iron-based MOFs catalysis material, it is characterised in that comprise the steps:
S1. by FeCl3·6H2Join in DMF solution after O and p-phthalic acid mixing, be stirred at room temperature, obtain mixed solution A；
S2. the mixed solution A of step S1 gained is loaded in the polytetrafluoroethyllining lining hydrothermal reaction kettle of 5～200mL, 80～
React 10～100h, after being cooled to room temperature at 180 DEG C, collect precipitate, obtain the crude product of iron-based MOFs catalysis material；
S3. the crude product of the iron-based MOFs catalysis material of step S2 gained is joined in ethanol solution, 30～100 DEG C of immersions
8～24h, the pressed powder vacuum dried 10～20h obtained after filtration, i.e. obtain the iron-based MOFs catalysis material of activation.
Preparation method the most according to claim 1, it is characterised in that the FeCl described in step S13·6H2O: terephthaldehyde
Acid: the mol ratio of DMF is 1:(0.1～20): (20～500).
Preparation method the most according to claim 1, it is characterised in that the time that is stirred at room temperature described in step S1 be 0.5～
3h。
Preparation method the most according to claim 1, it is characterised in that the cooldown rate described in step S2 is 0.05～3 DEG C/
min。
Preparation method the most according to claim 1, it is characterised in that the vacuum drying temperature described in step S3 be 60～
180℃。
6. the iron-based MOFs catalysis material that a kind is prepared by method described in any one of Claims 1 to 5.
7. the iron-based MOFs catalysis material described in claim 6 in visible light catalytic Cleaning Air volatile organic matter should
With.
Apply the most according to claim 7, it is characterised in that described volatile organic matter is styrene.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106861626A (en) * | 2017-01-16 | 2017-06-20 | 华南理工大学 | A kind of adsorption photochemical catalysis bifunctional material and preparation method thereof and the application in VOC Processing tecchnics |
| CN106984190A (en) * | 2017-05-04 | 2017-07-28 | 中能科泰（北京）科技有限公司 | A kind of method of catalytic degradation volatile organic matter |
| CN109706739A (en) * | 2019-02-25 | 2019-05-03 | 南昌大学 | The synthetic method of Fe-MOF nano-array is loaded on a kind of carbon cloth |
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| CN110538633A (en) * | 2019-07-31 | 2019-12-06 | 广东工业大学 | Adsorbent for selectively adsorbing aromatic VOCs (volatile organic compounds), and preparation method and application thereof |
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| CN111804343A (en) * | 2020-06-01 | 2020-10-23 | 广东工业大学 | Metal organic framework material packaged gold/titanium dioxide composite photocatalytic material and preparation method and application thereof |
| CN111804343B (en) * | 2020-06-01 | 2023-02-03 | 广东工业大学 | Metal organic framework material packaged gold/titanium dioxide composite photocatalytic material and preparation method and application thereof |
| CN114436337A (en) * | 2020-10-19 | 2022-05-06 | 中国石油化工股份有限公司 | Chemical ring hydrogen production oxygen carrier and preparation method thereof |
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| CN112604658A (en) * | 2020-11-26 | 2021-04-06 | 中国科学院上海硅酸盐研究所 | Nano composite material for air purification and preparation method and application thereof |
| CN112934271A (en) * | 2021-01-29 | 2021-06-11 | 广东工业大学 | Porous nanowire with metal-organic framework and preparation method and application thereof |
| CN112934271B (en) * | 2021-01-29 | 2022-10-28 | 广东工业大学 | Porous nanowire with metal-organic framework and preparation method and application thereof |
| CN113318791A (en) * | 2021-06-30 | 2021-08-31 | 武汉大学 | Preparation method and application of amino-modified Fe/Cu-MOF photocatalyst |
| CN115041145A (en) * | 2022-06-02 | 2022-09-13 | 中山火炬职业技术学院 | Preparation method and application of rutin molecularly imprinted material based on MOFs |
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