CN105148876A - Preparation method for surface molecular imprinting nano-composite material of magnetic graphene - Google Patents
Preparation method for surface molecular imprinting nano-composite material of magnetic graphene Download PDFInfo
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- CN105148876A CN105148876A CN201510557349.XA CN201510557349A CN105148876A CN 105148876 A CN105148876 A CN 105148876A CN 201510557349 A CN201510557349 A CN 201510557349A CN 105148876 A CN105148876 A CN 105148876A
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Abstract
The invention provides a preparation method for a surface molecular imprinting nano-composite material of magnetic graphene and belongs to the technical field of preparation of environmental protection functional materials. The method comprises the following steps: modifying a layer of Fe3O4 nano-particles on the surface of graphene; by using the obtained magnetic graphene as a carrier and using siloxane as a functional monomer and a cross-linking agent, preparing the surface molecular imprinting nano-composite material of the magnetic graphene in a water solution at normal temperature through a sol-gel method. The surface molecular imprinting nano-composite material of the magnetic graphene is applied to harmful substances or substances to be detected in a selective magnetic separation water body, so that target molecules can be quickly enriched and separated. The preparation method for the surface molecular imprinting nano-composite material of the magnetic graphene, provided by the invention, is simple, the carrier, template molecules, the functional monomer and a solvent are mixed in proportion, the cost is low, and energy conservation and environmental protection are achieved. A product has the advantages of specificity selection, high adsorption capacity, convenient magnetic separation, high speed and the like.
Description
Technical field
The present invention relates to environment-friendly function technical field of material, be specifically related to a kind of preparation method of magnetic graphene surface molecule print nano composite material.
Background technology
At present, active carbon, composite metal oxide can be adopted, containing the polymer of special functional group energy, the carrying out of harmful substance in water body is adsorbed.But said method all can not carry out specific adsorption to single harmful substance and be separated, and molecular imprinting has the new technology of the polymer of molecular recognition function as preparation, the advantage be separated is selected to become the water pollutions process new technology that has applications well prospect because it has to harmful substance specificity in water body.But, the preparation method of traditional molecularly imprinted polymer exists that preparation time is long, preparation process is loaded down with trivial details, do not have enough binding sites in imprinted polymer, trace hole is embedded and makes that template molecule is difficult to wash-out, diffusional resistance hinders imprinted polymer to the specific bond of template molecule and recognition performance, the following process shortcoming such as trace hole is destroyed.The appearance of surface imprinted technology makes up the defect of conventional molecular engram technology.So-called surface molecule print is exactly the surface of taking certain measure nearly all binding site to be confined to have good accessibility in brief, thus is conducive to removing and combining of template molecule.In recent years, surface imprinted technology is adopted more and more to be subject to people's attention to prepare molecularly imprinted polymer.
The carrier material of surface molecule print has Fe
3o
4, SiO
2, TiO
2, CNT, Graphene etc., wherein Graphene (the individual layer laminated structure be made up of carbon atom), with good characteristics such as its high specific area, outstanding heat conductivility and mechanical property and outstanding electron transmission performances, is just being widely used as the carrier material of molecular imprinted polymer on surface.
Prepare molecular imprinted polymer on surface and there is multiple method, as polymerisation in bulk, multi-step swelling polymerization, suspension polymerisation, precipitation polymerization etc., current molecularly imprinted polymer can only be polymerized mostly in organic phase (as chloroform, acetonitrile, toluene, DMF etc.), and mostly practical application is to need to carry out in aqueous, namely molecularly imprinted polymer prepares medium (organic phase) and applied environment (aqueous phase) difference.Due to the expansion of imprinted polymer in strong polarity aqueous phase with shrink and be very different in organic solvent at low pole, the void structure that itself and template molecule can be caused to match changes.In addition, in aqueous phase, prepare the Competition that polar solvent water also can occur imprinted polymer, destroy the preferential hydrogen bond action between template molecule and function monomer.Therefore, find a kind of method of simple possible, realize preparing molecular engram in aqueous and there is important Research Significance.The present invention adopts sol-gal process successfully can prepare molecular imprinted polymer on surface in aqueous.Sol-gal process refers to that inorganic matter or metal alkoxide mix mutually with water, mutual solvent, catalyst, through solution, colloidal sol, gel-forming tridimensional network.This reaction can not only occur smoothly in aqueous phase, and reaction condition is gentle, and is easy to predetermined substance to be incorporated in the structure of highly cross-linked, porous, and there is not the problem of heat or chemical breakdown.
When preparing surperficial molecular imprinting composite material, need molecular imprinted polymer on surface to be separated with solution in washing, elution step, the separation method usually adopted is centrifugation, and the method process is loaded down with trivial details and time-consuming.And it is not Magneto separate only need can realize the effect by magnetic component and non-magnetic components quick separating under the influence of a magnetic field, simple to operate time-consuming.Therefore, the present invention is at its finishing last layer of Graphene Fe
3o
4with obtained magnetic graphene for carrier, mating surface molecular imprinting prepares magnetic graphene surface molecule print nano composite material, it has superparamagnetism, can realize under the effect of outside magnetic field with solution quick separating, and selective enrichment is separated microsphere (in environment noxious material).
Summary of the invention
An object of the present invention is the preparation method providing a kind of magnetic graphene surface molecule print nano composite material.At its finishing last layer of Graphene Fe
3o
4, with obtained magnetic graphene for carrier, take siloxanes as function monomer and crosslinking agent, under normal temperature, prepare a kind of magnetic graphene surface molecule print nano composite material by sol-gel process in aqueous.Described method comprises the steps:
(1) graphene oxide is dissolved in deionized water, ultrasonic disperse; The concentration of graphene oxide water solution is 1 ~ 5mg/mL, and ultrasonic time is 0.5 ~ 4h;
(2) add to the aqueous solution of graphene oxide the mixed solution that iron chloride that concentration is 0.005 ~ 0.025mol/mL and concentration are the frerrous chloride of 0.0002 ~ 0.001mol/mL, stir 0.5 ~ 4h;
(3) pH regulating mixed solution is 9 ~ 12, adds the reducing agent such as hydrazine hydrate, sodium borohydride 5 ~ 15ml, in 60 ~ 100 DEG C of reaction 2 ~ 10h;
(4) filtering and washing obtains finishing one deck Fe
3o
4graphene (magnetic graphene);
(5) magnetic graphene dispersion in deionized water, then adds certain density template molecule, two kinds of siloxanes (a kind of as function monomer, a kind of as crosslinking agent) successively; Regulate pH value of solution to be 9 ~ 12 with the alkaline matter such as ammoniacal liquor, NaOH, duration of oscillation is 6 ~ 15h, and frequency is 50 to 200Hz;
(6) magnetic graphene surface molecule print nano composite material is obtained after wash-out, Magneto separate, washing.
Advantage of the present invention: 1. adopt magnetic graphene to be carrier.Graphene tool is high surface area, and mass transfer velocity is fast, is applicable to surface molecule print technology.In addition, one deck Fe is modified at graphenic surface
3o
4with obtained magnetic graphene for carrier, magnetic graphene surface molecule print nano composite material prepared by binding molecule engram technology has superparamagnetism, only need can realize the effect of the quick separating of this composite and solvent under the influence of a magnetic field, simple to operate not time-consuming.2. the present invention have found a kind of method, realizes molecular engram material preparation in aqueous, i.e. sol-gel process.At normal temperatures, react in the aqueous solution, simple to operate, cost is low, environmental friendliness, and the material of gained can successfully be applied in water environment for the method.3. obtained magnetic graphene surface molecule print composite has to microsphere (harmful substance in water) that quick response, highly sensitive, Magnetic Isolation speed are fast to be separated in water body the advantages such as harmful substance with specific enrichment.
Accompanying drawing explanation
Accompanying drawing is a kind of synthesis schematic diagram of magnetic graphene surface molecule print nano composite material.
Detailed description of the invention
Listed embodiment and application examples are more specific description the present invention below, but the present invention is also not only confined to this place row embodiment and application examples.
Embodiment 1:
500mg graphene oxide is dispersed in 250ml deionized water, ultrasonic 1h.By 0.01molFeCl
36H
2o and 0.075molFeCl
24H
2o is dissolved in 25ml deionized water, and then by the above-mentioned dropwise instillation GO aqueous solution, room temperature leads to N
2, stir 1h.Dropwise add 28% ammoniacal liquor, regulate pH value of solution to be 9.5.5ml hydrazine hydrate is added, stirring reaction 4h at 60 DEG C.Treat that solution is cooled to room temperature, suction filtration, and spend deionized water and obtain magnetic graphene.Get 50mg magnetic graphene, add 200mg paranitrophenol, 50ml deionized water.Then in above-mentioned system, add 10mg phenyl triethoxysilane and 10mg tetraethoxy silica alkane, then add 28% ammoniacal liquor adjust pH be 9.5, water-bath vibration 8h, frequency 80Hz.Deionized water product is spent after reaction terminates.To vibrate 10 hours eluted product with eluent (1: 1 methanol acetic acid mixed solution), to eluent, can't detect paranitrophenol, deionized water washing, dry, obtain a kind of magnetic graphene surface molecule print nano composite material.
Embodiment 2:
800mg graphene oxide is dispersed in 250ml deionized water, ultrasonic 2h.By 0.03molFeCl
36H
2o and 0.01molFeCl
24H
2o is dissolved in 25ml deionized water, and then by the above-mentioned dropwise instillation GO aqueous solution, room temperature leads to N
2, stir 2h.Dropwise add 28% ammoniacal liquor, regulate pH value of solution to be 10.10ml sodium borohydride is added, stirring reaction 7h at 80 DEG C.Treat that solution is cooled to room temperature, suction filtration, and spend deionized water and obtain magnetic graphene.Get 50mg magnetic graphene, add 50mg2,4-Dichlorophenol, 50ml deionized water.Then in above-mentioned system, add 20mg phenyl triethoxysilane and 10mg tetramethoxy silica alkane, then add 28% ammoniacal liquor adjust pH be 11, water-bath vibration 10h, frequency 120Hz.Deionized water product is spent after reaction terminates.By eluent (1: 4 ethanol N ' dinethylformamide mixed solution) 5 hours eluted product of vibrating, can't detect 2 to eluent, 4-Dichlorophenol, deionized water washing, drying, obtain a kind of magnetic graphene surface molecule print nano composite material.
Embodiment 3:
1250mg graphene oxide is dispersed in 250ml deionized water, ultrasonic 4h.By 0.06molFeCl
36H
2o and 0.02molFeCl
24H
2o is dissolved in 25ml deionized water, and then by the above-mentioned dropwise instillation GO aqueous solution, room temperature leads to N
2, stir 0.5h.Dropwise add 28% ammoniacal liquor, regulate pH value of solution to be 11.15ml hydrazine hydrate is added, stirring reaction 10h at 100 DEG C.Treat that solution is cooled to room temperature, suction filtration, and spend deionized water and obtain magnetic graphene.Get 50m magnetic graphene, add 20mg2-picoline, 50ml deionized water.Then in above-mentioned system, add 50mg3-aminopropyl trimethoxysilane and 10mg tetramethoxy silica alkane, then add 28% ammoniacal liquor adjust pH be 12, water-bath vibration 15h, frequency 180Hz.Deionized water product is spent after reaction terminates.To vibrate 8 hours eluted product with eluent (1: 9 alcohol, acetic acid mixed solution), to eluent, can't detect 2-picoline, deionized water washing, dry, obtain a kind of magnetic graphene surface molecule print nano composite material.
Claims (4)
1. a preparation method for magnetic graphene surface molecule print nano composite material, is characterized in that preparation process is as follows:
The first step, is dissolved in graphene oxide in deionized water, ultrasonic disperse; The concentration of graphene oxide water solution is 1 ~ 5mg/mL, and ultrasonic time is 0.5 ~ 4h;
Second step, the aqueous solution to graphene oxide adds the mixed solution that iron chloride that concentration is 0.005 ~ 0.025mol/mL and concentration are the frerrous chloride of 0.0002 ~ 0.001mol/mL, stirs 0.5 ~ 4h;
3rd step, the pH regulating mixed solution is 9 ~ 12, adds the reducing agent such as hydrazine hydrate, sodium borohydride 5 ~ 15ml, in 60 ~ 100 DEG C of reaction 2 ~ 10h;
4th step, filtering and washing obtains finishing one deck Fe
3o
4graphene (magnetic graphene);
5th step, by magnetic graphene dispersion in deionized water, then adds certain density template molecule, two kinds of siloxanes (a kind of as function monomer, a kind of as crosslinking agent) successively.Regulate pH value of solution to be 9 ~ 12 with the alkaline matter such as ammoniacal liquor, NaOH, duration of oscillation is 6 ~ 15h, and frequency is 50 to 200Hz;
6th step, obtains magnetic graphene surface molecule print nano composite material after wash-out, Magneto separate, washing.
2. the preparation method of magnetic graphene surface molecule print nano composite material according to claim 1, it is characterized in that: in the 5th step, described template molecule is selected in water body and be common are harmful substances, as pyridine, quinoline, picoline, amino acid, acid amides, dimethyl formamide, nitrophenol, mercaptan, alkyl sulfide, thiocarbamide, sulphamide, thiophene, methyl-sulfoxide, chloroform, carbon tetrachloride, polyvinyl chloride-base, chlorobenzene class and etheride etc.The selected siloxanes as function monomer can be tetramethoxy-silicane, tetraethoxysilane etc., and the siloxanes as crosslinking agent can be phenyl triethoxysilane, methyl trimethoxy oxosilane, 3-aminopropyl trimethoxysilane, 3-aminopropyl triethoxysilane, 3-(isobutene acyl-oxygen) propyl trimethoxy silicane etc.
3. the preparation method of magnetic graphene surface molecule print nano composite material according to claim 1, it is characterized in that: in the 7th step, eluent is polar solvent, one or both mixed solvents following selected by polar solvent: water, acetic acid, ethanol, methyl alcohol, acetonitrile, N ' dinethylformamide, dimethyl sulfoxide (DMSO), ethyl acetate, in mixed solvent, the volume ratio of two kinds of solvents is 1: 1 ~ 1: 9.
4. the preparation method of magnetic graphene surface molecule print nano composite material according to claim 1, it is characterized in that: the mass ratio of magnetic graphene and siloxanes total amount is 1: 0.1 ~ 1: 5, siloxanes as function monomer is 10: 1 ~ 1: 2 with the mol ratio of the siloxanes as crosslinking agent, and the mass ratio of magnetic graphene and template molecule is 1: 5 ~ 10: 1.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106279698A (en) * | 2016-08-26 | 2017-01-04 | 河南师范大学 | A kind of 2,4 dinitrophenol,DNP molecular imprinted polymer on surface and its preparation method and application |
| CN108586653A (en) * | 2018-04-24 | 2018-09-28 | 湖北出入境检验检疫局检验检疫技术中心 | A kind of two-dimensional graphene trace composite material and preparation method and application |
| CN109092254A (en) * | 2018-08-16 | 2018-12-28 | 广东工业大学 | A kind of preparation of double virtual template phthalic acid ester molecular engram magnetic materials and application method |
| CN109317124A (en) * | 2018-11-13 | 2019-02-12 | 湖北文理学院 | A kind of three-dimensional grapheme magnetic stirring bar and its analysis application |
| CN109354657A (en) * | 2018-08-16 | 2019-02-19 | 广东工业大学 | The preparation of alkyl phenol composite template molecule imprinted polymer modified magnetic graphene oxide and application method |
| CN109593208A (en) * | 2018-12-01 | 2019-04-09 | 浙江海洋大学 | A kind of preparation method with graphene surface imprinted polymer |
| CN112911915A (en) * | 2021-01-18 | 2021-06-04 | 江南大学 | Corrosion-resistant graphene-based magnetic composite foam wave-absorbing material and preparation method thereof |
| CN114984926A (en) * | 2022-05-11 | 2022-09-02 | 东北电力大学 | Preparation method of high-agglomeration-resistance RGO-based magnetic lithium ion imprinted polymer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604009A (en) * | 2012-03-23 | 2012-07-25 | 济南大学 | Preparation method of molecularly imprinted polymer of magnetic graphene carrier |
| CN103641944A (en) * | 2013-12-13 | 2014-03-19 | 天津工业大学 | Preparation and application of molecularly imprinted hybrid material of estrogenic endocrine disrupter |
| CN104098729A (en) * | 2014-07-02 | 2014-10-15 | 同济大学 | Preparing method and application of MGO-MIP (Magnetic Graphene Oxide-Molecular Imprinting) composite material |
| CN104165912A (en) * | 2013-06-26 | 2014-11-26 | 江南大学 | Preparation method and use of graphene oxide surface molecularly imprinted sol-gel polymer |
-
2015
- 2015-09-06 CN CN201510557349.XA patent/CN105148876A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604009A (en) * | 2012-03-23 | 2012-07-25 | 济南大学 | Preparation method of molecularly imprinted polymer of magnetic graphene carrier |
| CN104165912A (en) * | 2013-06-26 | 2014-11-26 | 江南大学 | Preparation method and use of graphene oxide surface molecularly imprinted sol-gel polymer |
| CN103641944A (en) * | 2013-12-13 | 2014-03-19 | 天津工业大学 | Preparation and application of molecularly imprinted hybrid material of estrogenic endocrine disrupter |
| CN104098729A (en) * | 2014-07-02 | 2014-10-15 | 同济大学 | Preparing method and application of MGO-MIP (Magnetic Graphene Oxide-Molecular Imprinting) composite material |
Non-Patent Citations (2)
| Title |
|---|
| JING LUO ET AL.: "One-pot synthesis of a graphene oxide coated with an imprinted sol–gel for use in electrochemical sensing of paracetamol", 《MICROCHIM ACTA》 * |
| YUNJIN YAO ET AL: "Synthesis, characterization, and adsorption properties of magnetic Fe3O4@graphene nanocomposite", 《CHEMICAL ENGINEERING JOURNAL》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106279698A (en) * | 2016-08-26 | 2017-01-04 | 河南师范大学 | A kind of 2,4 dinitrophenol,DNP molecular imprinted polymer on surface and its preparation method and application |
| CN106279698B (en) * | 2016-08-26 | 2020-04-03 | 河南师范大学 | 2, 4-dinitrophenol surface molecularly imprinted polymer and preparation method and application thereof |
| CN108586653A (en) * | 2018-04-24 | 2018-09-28 | 湖北出入境检验检疫局检验检疫技术中心 | A kind of two-dimensional graphene trace composite material and preparation method and application |
| CN108586653B (en) * | 2018-04-24 | 2020-07-10 | 湖北出入境检验检疫局检验检疫技术中心 | Two-dimensional graphene imprinted composite material and preparation method and application thereof |
| CN109354657B (en) * | 2018-08-16 | 2021-02-02 | 广东工业大学 | Preparation and application methods of alkylphenol composite template molecularly imprinted polymer modified magnetic graphene oxide |
| CN109092254A (en) * | 2018-08-16 | 2018-12-28 | 广东工业大学 | A kind of preparation of double virtual template phthalic acid ester molecular engram magnetic materials and application method |
| CN109354657A (en) * | 2018-08-16 | 2019-02-19 | 广东工业大学 | The preparation of alkyl phenol composite template molecule imprinted polymer modified magnetic graphene oxide and application method |
| CN109092254B (en) * | 2018-08-16 | 2021-09-21 | 广东工业大学 | Preparation and application method of double-virtual-template phthalate molecularly imprinted magnetic material |
| CN109317124A (en) * | 2018-11-13 | 2019-02-12 | 湖北文理学院 | A kind of three-dimensional grapheme magnetic stirring bar and its analysis application |
| CN109593208A (en) * | 2018-12-01 | 2019-04-09 | 浙江海洋大学 | A kind of preparation method with graphene surface imprinted polymer |
| CN112911915A (en) * | 2021-01-18 | 2021-06-04 | 江南大学 | Corrosion-resistant graphene-based magnetic composite foam wave-absorbing material and preparation method thereof |
| CN112911915B (en) * | 2021-01-18 | 2022-08-09 | 江南大学 | Corrosion-resistant graphene-based magnetic composite foam wave-absorbing material and preparation method thereof |
| CN114984926A (en) * | 2022-05-11 | 2022-09-02 | 东北电力大学 | Preparation method of high-agglomeration-resistance RGO-based magnetic lithium ion imprinted polymer |
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Application publication date: 20151216 |