CN108242341A - A kind of preparation of multifunctional graphite vinyl sill and its application in terms of ultracapacitor and water process - Google Patents
A kind of preparation of multifunctional graphite vinyl sill and its application in terms of ultracapacitor and water process Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 230000008569 process Effects 0.000 title claims abstract description 10
- 229910002804 graphite Inorganic materials 0.000 title abstract description 13
- 239000010439 graphite Substances 0.000 title abstract description 13
- 229920002554 vinyl polymer Polymers 0.000 title abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 69
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 66
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229920000128 polypyrrole Polymers 0.000 claims abstract description 28
- 239000000178 monomer Substances 0.000 claims abstract description 25
- 150000003233 pyrroles Chemical class 0.000 claims abstract description 14
- 239000011259 mixed solution Substances 0.000 claims abstract description 12
- 229920000954 Polyglycolide Polymers 0.000 claims abstract description 6
- 235000010409 propane-1,2-diol alginate Nutrition 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 32
- 239000000243 solution Substances 0.000 claims description 26
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 20
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 20
- 238000002604 ultrasonography Methods 0.000 claims description 14
- 238000006555 catalytic reaction Methods 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 12
- 239000000017 hydrogel Substances 0.000 claims description 12
- 229910001385 heavy metal Inorganic materials 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 238000002242 deionisation method Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 239000003643 water by type Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 239000005416 organic matter Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000002525 ultrasonication Methods 0.000 claims description 2
- 238000005292 vacuum distillation Methods 0.000 claims description 2
- 102400000830 Saposin-B Human genes 0.000 claims 1
- 101800001697 Saposin-B Proteins 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 15
- 239000008187 granular material Substances 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 abstract description 3
- 238000001027 hydrothermal synthesis Methods 0.000 abstract description 3
- 239000007777 multifunctional material Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 abstract 1
- 230000002596 correlated effect Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 11
- 239000011651 chromium Substances 0.000 description 9
- 239000003344 environmental pollutant Substances 0.000 description 9
- 231100000719 pollutant Toxicity 0.000 description 9
- 239000007772 electrode material Substances 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- 239000004964 aerogel Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000002322 conducting polymer Substances 0.000 description 3
- 229920001940 conductive polymer Polymers 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 241000446313 Lamella Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000000383 hazardous chemical Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000002071 nanotube Substances 0.000 description 2
- 230000033116 oxidation-reduction process Effects 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OTEKOJQFKOIXMU-UHFFFAOYSA-N 1,4-bis(trichloromethyl)benzene Chemical compound ClC(Cl)(Cl)C1=CC=C(C(Cl)(Cl)Cl)C=C1 OTEKOJQFKOIXMU-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000002484 cyclic voltammetry Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- -1 graphite alkene Chemical class 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 239000012761 high-performance material Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002073 nanorod Substances 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- 239000003403 water pollutant Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
-
- 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
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
-
- B01J35/23—
-
- B01J35/33—
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/075—Macromolecular gels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/36—Nanostructures, e.g. nanofibres, nanotubes or fullerenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/48—Conductive polymers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
A kind of preparation the invention discloses multifunctional graphite vinyl sill and its application in terms of ultracapacitor and water process, graphene is combined, obtain polypyrrole/redox graphene aeroge using hydro-thermal method with pyrrole monomer(PGAs).Not only the porosity with graphene but also the reproducibility with polypyrrole, the porosity and dispersibility of graphene can be very good to solve the disadvantage that the excessive of pyrroles is reunited the aeroge so that material can give full play to its advantage.The graphene-based aeroge of preparation is put into three-dimensional electrode reactor system and plays the effect of third granule electrode, for removing Cr VI(Cr(VI))And bisphenol-A(BPA)Mixed solution.In addition, using the material prepared as electrode, applied to ultracapacitor, and its correlated performance is tested.The realization of multifunctional material is beneficial to the alleviation of environmental pressure, meets current energy-saving and environment-friendly trend.
Description
Technical field
The present invention relates to a kind of preparation of multifunctional graphite vinyl sill and its in terms of ultracapacitor and water process
Using, belong to water process neck and electrochemical technology field.
Background technology
In recent years, ultracapacitor is because with bigger than conventional capacitor energy density, higher than secondary cell power density
Advantage, and be that one kind has extended cycle life, cryogenic property is superior, stability is high and environmental pollution is small, so as to attract
Extensive concern.Ultracapacitor has a wide range of applications, such as portable instrument equipment, data accumulating storage system, electronic
Automobile power source and emergent backup power supply etc., particularly on electric vehicle, ultracapacitor is combined with battery, provides Gao Gong respectively
Rate and high-energy not only reduce power volume, but also extend the service life of battery.The key of ultracapacitor development is electrode material
The structure and performance of material, it is therefore necessary to a kind of high performance electrode material of R and D.Graphene is current studies the most
One of extensive carbon material, it is the cellular hexaplanar structure for having single layer of carbon atom arrangement form, therefore with excellent
Physical and chemical performance.Graphene aerogel is a kind of aeroge using graphene as skeleton unit, be provided simultaneously with graphene and
The characteristic of aeroge not only with unique tridimensional network, also possesses high conductivity, larger specific surface area, high hole
The advantages that rate and preferable thermal conductivity so that it has very big prospect in the application of ultracapacitor.
In order to further improve the capacitive property of graphene, research at present generally by graphene and transition metal oxide and
The Material claddings such as conducting polymer prepare compound gas electrode material.Such as Ramadoss(Carbon, 2013,63 phases, the
434-445 pages)Et al. by hydrothermal method, prepared titanium dioxide granule/graphene combination electrode material, capacitance energy
Enough reach 165F/g.Ruirui Liu (Electrochimica Acta, 2015,156 phases, the 274-282 pages)Et al. two
It is compound to have prepared titanium dioxide nano-rod/graphene as raw material for titan oxide particles and graphene oxide and carbon nanotube
Aeroge, as the electrode material of ultracapacitor, its capacitance can only reach 100F/g to the composite aerogel.However, these
It is general with the chemical property of titanium dioxide/graphene composite aerogel, its application is made to receive certain restrictions.The present invention endeavours
In super long titanium dioxide nanotube will be introduced, finally synthesize the compound airsetting of titania nanotube/graphene of high-capacitance
Glue.
The aeroge not only electrochemical performance, while be applied to going for electro-catalysis pollution of chromium waste water as catalyst
It removes, also presents very efficient performance.Electro-catalysis has proved to be one of effective ways of processing Pollutants in Wastewater.Its
Mechanism and dynamics have been widely studied.The method generally use two-dimensional electrode processing system of traditional electro-catalysis processing waste water,
In three-diemsnional electrode system, after making alive between two principal electrode films, granule electrode will be polarized, and be become one by one as electrolysis
Area will greatly improve treatment effect of the whole system to sewage.By high performance material as third granule electrode, granule electrode
Pollutant is adsorbed onto, then the pollutant electrolysis removal of surrounding, particle electricity will be adsorbed onto by electrolysis by surrounding by absorption
Pole will be activated, and can be adsorbed pollutant again and be carried out cell reaction again to surrounding.Above-mentioned reaction will be in three-diemsnional electrode system
It forms absorption-electro-catalysis-and adsorbs-the circular response of electro-catalysis again again, this will greatly promote its treatment effect to pollutant.
Graphene is widely applied as a kind of high-performance novel material of the three-dimensional pore space structure with high-specific surface area
Research in each field.The graphene composite material of N doping that this seminar prepares early period is applied to bis-phenol as granule electrode
A(BPA)The obtained removal effect of electro-catalysis be more than 90%(Journal of Hazardous Materials, 2017,
332 phases, the 70-78 pages).Polypyrrole will greatly improve its electric action as granule electrode as a kind of conducting polymer.
Since redox can occurs in it between heavy metal, also largely it is used in the processing of heavy metal wastewater thereby.Tian
Et al. using polypyrrole inhibition liberation of hydrogen act on, be combined on electrode as modified material, for removing the weight of Cr (VI)
Metallic wastewater(Journal of Hazardous Materials, 2012, the 15th phase, the 225-226 pages).The present invention will be comprehensive
The advantages of closing graphene and polypyrrole prepares a kind of multi-functional composite material applied to water process and ultracapacitor field.
Invention content
The purpose of the present invention is to provide a kind of preparation method of multifunctional graphite vinyl sill and its in ultracapacitor
With the application in terms of water process, it can be achieved that being shown to the removal of chromium pollutant in 60 minutes and in terms of ultracapacitor excellent
Good performance, preparation method include the following steps:
(1)200 mg graphene oxides are ultrasonically treated 10 h with ultrasonic cell-break device in 100 ml ultra-pure waters, are obtained
Finely dispersed graphene oxide solution is for use;
(2)Pyrrole monomer solution is evaporated under reduced pressure, combination unit is vacuumized, package unit is wrapped up with tinfoil, prevents
The pyrroles's re-oxidation only distilled distills in 100 °C of hot baths, it is for use to obtain fresh pyrrole monomer under a nitrogen atmosphere;
(3)By suitable FeCl3·6H2O is added in 10 ml deionizations ultrasonic disperse to FeCl3·6H2O, which is completely dissolved, to be treated
With;
(4)25 ml polytetrafluoroethyllining linings are taken, 5 ml graphene oxide dispersions is added in, adds the fresh pyrroles of 0.5 ml
Monomer by mixed solution 10 min of ultrasound in ultrasonic cell-break device, makes two kinds of solution be uniformly mixed for use;
(5)Liner is put into ultrasonic washing instrument, then by FeCl3·6H2O solution is poured into ultrasound in liner, is treated
Liner is covered and is put into reaction kettle by stable reaction, 180 °C of 12 h of heating;
(6)After reaction kettle is cooled to room temperature, by the product after reaction --- redox graphene polypyrrole hydrogel is used super
Pure water and alcohol clean removal impurity repeatedly;
(7)Purified hydrogel is freeze-dried 24 h, obtains polypyrrole/redox graphene aeroge(PGAs)It is standby
With.
Step(1)Described in ultrasonic method be per ultrasound 30min, stir a dispersion liquid, every 1h be mixed solution
An ice bath is replaced, maintains the ultrasonication in the case of 0 °C.
Step(1)Used in graphene oxide have larger specific surface area, polypyrrole can be made adequately to disperse to gather
It closes in graphene oxide layer, improves the dispersion problem of polypyrrole.
Step(1)In prepared graphene oxide dispersion a concentration of 2mg/ml.
Step(2)N should be in the vacuum distillation process of middle pyrrole monomer always2It flows down.
Step(3)Middle pyrrole monomer and FeCl3·6H2The molal weight ratio of O is 1:2.3.
This multifunctional material prepared by the method for the present invention is characterized in that:Graphene oxide plays stent work in system
With preventing the reunion of polypyrrole.Its more empty structure is conducive to enrichment of the dirty water pollutant in electro-catalysis system, and provide
A large amount of reaction site.Highly toxic heavy metal ion can be reduced to low by polypyrrole because it is with certain oxidisability
The metal ion of toxicity, so as to improve its electro-catalysis effect.Polypyrrole is as conducting polymer, in electrode of super capacitor application
Aspect shows excellent performance.
The advantage of the invention is that:The big specific area of graphene oxide has polymerize pyrrole monomer, it is therefore prevented that the group of particle
It is poly-, and greatly strengthen enrichment of the material to persistence organic pollutant in water body and heavy metal mixed solution.It is polarizing
During for electrocatalytic oxidation reduction provide a large amount of reaction site and micro- reaction zone.Heavy metal can be reduced to by polypyrrole
The metal ion of hypotoxicity.It is contained in entire three-dimensional electro-catalysis system:Electrostatic Absorption, ion exchange, electrocatalytic oxidation reduction
Deng.The three-dimensional reaction system that the present invention constructs has the ability of collaboration electro-catalysis organic matter and heavy metal, stability and repetition profit
It is good with property.Water middle and high concentration, high toxicity, persistent organic pollutants and heavy metal mixed solution are made with synergistic sorption
The characteristics of with, non-secondary pollution.In addition, the material of preparation to be applied to the electrode material of ultracapacitor, also show excellent
Good performance.
Description of the drawings
Fig. 1 is the scanning electron microscope (SEM) photograph of multifunctional graphite vinyl base aeroge that the embodiment of the present invention 1 provides;
Fig. 2 (a) is the X-ray diffractogram of the multifunctional graphite vinyl base aeroge that the embodiment of the present invention 2 provides and graphene oxide
Spectrum;
Fig. 2 (b) is the X ray diffracting spectrum of multifunctional graphite vinyl base aeroge that the embodiment of the present invention 2 provides;
Fig. 3 (a) is that the electro-catalysis that the embodiment of the present invention 3 provides removes the removal rate of Cr (VI) pollutant at any time;
Fig. 3 (b) is that the embodiment of the present invention 3 provides the removal dynamics for being Cr in mixed pollutants (VI) fitting;
Fig. 4 is cyclic voltammetry curve of the multifunctional graphite vinyl aeroge that provides of the embodiment of the present invention 4 under different scanning speed;
Fig. 5 is constant current charge-discharge of the multifunctional graphite vinyl aeroge that provides of the embodiment of the present invention 4 under different current densities
Curve.
Specific embodiment
Above-mentioned purpose, feature and advantage to enable invention are more obvious understandable, below to the specific implementation of the present invention
Mode is described in detail.
Embodiment 1:
(1)200 mg graphene oxides are ultrasonically treated 10 h with ultrasonic cell-break device in 100 ml ultra-pure waters, are obtained
Finely dispersed graphene oxide solution is for use;
(2)Pyrrole monomer solution is evaporated under reduced pressure, combination unit is vacuumized, package unit is wrapped up with tinfoil, prevents
The pyrroles's re-oxidation only distilled distills in 100 °C of hot baths, it is for use to obtain fresh pyrrole monomer under a nitrogen atmosphere;
(3)By suitable FeCl3·6H2O is added in 10 ml deionizations ultrasonic disperse to FeCl3·6H2O, which is completely dissolved, to be treated
With;
(4)25 ml polytetrafluoroethyllining linings are taken, 5 ml graphene oxide dispersions is added in, adds the fresh pyrroles of 0.5 ml
Monomer by mixed solution 10 min of ultrasound in ultrasonic cell-break device, makes two kinds of solution be uniformly mixed for use;
(5)Liner is put into ultrasonic washing instrument, then by FeCl3·6H2O solution is poured into ultrasound in liner, is treated
Liner is covered and is put into reaction kettle by stable reaction, 180 °C of 12 h of heating;
(6)After reaction kettle is cooled to room temperature, by the product after reaction --- redox graphene polypyrrole hydrogel is used super
Pure water and alcohol clean removal impurity repeatedly;
(7)Purified hydrogel is freeze-dried 24 h, it is spare to obtain PGAs.
The polypyrrole redox graphene material of preparation is placed in scanning electron microscope(SEM)The shape of lower observation material
State and grain size find to be attached with rodlike polypyrrole chain on redox graphene lamella, show that pyrrole monomer is very good
Dispersibility is aggregated on redox graphene lamella, as shown in Figure 1.
Embodiment 2:
(1)200 mg graphene oxides are ultrasonically treated 10 h with ultrasonic cell-break device in 100 ml ultra-pure waters, are obtained
Finely dispersed graphene oxide solution is for use;
(2)Pyrrole monomer solution is evaporated under reduced pressure, combination unit is vacuumized, package unit is wrapped up with tinfoil, prevents
The pyrroles's re-oxidation only distilled distills in 100 °C of hot baths, it is for use to obtain fresh pyrrole monomer under a nitrogen atmosphere;
(3)By suitable FeCl3·6H2O is added in 10 ml deionizations ultrasonic disperse to FeCl3·6H2O, which is completely dissolved, to be treated
With;
(4)25 ml polytetrafluoroethyllining linings are taken, 5 ml graphene oxide dispersions is added in, adds the fresh pyrroles of 0.5 ml
Monomer by mixed solution 10 min of ultrasound in ultrasonic cell-break device, makes two kinds of solution be uniformly mixed for use;
(5)Liner is put into ultrasonic washing instrument, then by FeCl3·6H2O solution is poured into ultrasound in liner, is treated
Liner is covered and is put into reaction kettle by stable reaction, 180 °C of 12 h of heating;
(6)After reaction kettle is cooled to room temperature, by the product after reaction --- redox graphene polypyrrole hydrogel is used super
Pure water and alcohol clean removal impurity repeatedly;
(7)Purified hydrogel is freeze-dried 24 h, it is spare to obtain redox graphene polypyrrole aeroge.
In order to further determine on the whether poly- polymer and graphite alkene of pyrroles and paying close attention to whether graphene oxide is reduced to graphite
Prepared sample is carried out X-ray diffractogram spectrum analysis by alkene.Such as Fig. 2(a)Shown, compared with GO, PGAs has lacked 9.06 °
Peak, this shows that GO is reduced to graphene.Such as Fig. 2(b)Shown, there are three apparent polypyrrole peaks in the figure of PGAs
17.56 °, 26.66 ° and 40.23 °, show that polypyrrole is aggregated to graphene oxide in hydrothermal reaction process(GO)On.
Embodiment 3:
(1)200 mg graphene oxides are ultrasonically treated 10 h with ultrasonic cell-break device in 100 ml ultra-pure waters, are obtained
Finely dispersed graphene oxide solution is for use;
(2)Pyrrole monomer solution is evaporated under reduced pressure, combination unit is vacuumized, package unit is wrapped up with tinfoil, prevents
The pyrroles's re-oxidation only distilled distills in 100 °C of hot baths, it is for use to obtain fresh pyrrole monomer under a nitrogen atmosphere;
(3)By suitable FeCl3·6H2O is added in 10 ml deionizations ultrasonic disperse to FeCl3·6H2O, which is completely dissolved, to be treated
With;
(4)25 ml polytetrafluoroethyllining linings are taken, 5 ml graphene oxide dispersions is added in, adds the fresh pyrroles of 0.5 ml
Monomer by mixed solution 10 min of ultrasound in ultrasonic cell-break device, makes two kinds of solution be uniformly mixed for use;
(5)Liner is put into ultrasonic washing instrument, then by FeCl3·6H2O solution is poured into ultrasound in liner, is treated
Liner is covered and is put into reaction kettle by stable reaction, 180 °C of 12 h of heating;
(6)After reaction kettle is cooled to room temperature, by the product after reaction --- redox graphene polypyrrole hydrogel is used super
Pure water and alcohol clean removal impurity repeatedly;
(7)Purified hydrogel is freeze-dried 24 h, it is spare to obtain redox graphene polypyrrole aeroge.
The material of preparation is subjected to electro-catalysis experiment by target contaminant of Cr (VI) solution, verifies going for material prepared
Except performance.The reaction solution of the Cr (VI) of a concentration of 80 mg/L of 200 mL is put into cloudy with stable type Ni―Ti anode and stainless (steel) wire
The graphene-based granule electrode prepared by 200 mg is added in the reaction vessel of pole composition.It collects at predetermined intervals
1.0mL samples filter it to remove solid particle immediately by 0.22 micron of PES injection filter.Utilize hexichol phosphinylidyne two
Hydrazine spectrophotometry measures the concentration of remaining Cr in mixed solution.The result shows that when pH is 3, it can be achieved that 60 minutes to Cr
(VI) removal rate reaches 100.00%, such as Fig. 3(a)It is shown.And removal kinetic reaction equation, the removal of pollutant have been fitted it
Meet level-one place to go dynamics, rate constant is:kobs-Cr(VI)= 0.07953(R2=0.9142), such as Fig. 3(b)It is shown.
Embodiment 4:
(1)200 mg graphene oxides are ultrasonically treated 10 h with ultrasonic cell-break device in 100 ml ultra-pure waters, are obtained
Finely dispersed graphene oxide solution is for use;
(2)Pyrrole monomer solution is evaporated under reduced pressure, combination unit is vacuumized, package unit is wrapped up with tinfoil, prevents
The pyrroles's re-oxidation only distilled distills in 100 °C of hot baths, it is for use to obtain fresh pyrrole monomer under a nitrogen atmosphere;
(3)By suitable FeCl3·6H2O is added in 10 ml deionizations ultrasonic disperse to FeCl3·6H2O, which is completely dissolved, to be treated
With;
(4)25 ml polytetrafluoroethyllining linings are taken, 5 ml graphene oxide dispersions is added in, adds the fresh pyrroles of 0.5 ml
Monomer by mixed solution 10 min of ultrasound in ultrasonic cell-break device, makes two kinds of solution be uniformly mixed for use;
(5)Liner is put into ultrasonic washing instrument, then by FeCl3·6H2O solution is poured into ultrasound in liner, is treated
Liner is covered and is put into reaction kettle by stable reaction, 180 °C of 12 h of heating;
(6)After reaction kettle is cooled to room temperature, by the product after reaction --- redox graphene polypyrrole hydrogel is used super
Pure water and alcohol clean removal impurity repeatedly;
(7)Purified hydrogel is freeze-dried 24 h, it is spare to obtain redox graphene polypyrrole aeroge.
The material of preparation is pressed into electrode slice, with the H of 1 mol/L2SO4For solute, chemical property is carried out to material
Test, Fig. 4 are that cyclic voltammetric of the multifunctional graphite vinyl aeroge that provides of the embodiment of the present invention 4 under different scanning speed is bent
Line, in the sweep speed of 5 mV/s, the capacitance having is 347.71 F/g.Fig. 5 provides more for the embodiment of the present invention 4
Constant current charge-discharge curve of the functional graphene aeroge under different current densities, in 0.3 A/g, the capacitance that has
For 322.60 F/g, in 6.0 A/g, the capacitance having still has 261.61 F/g.Testing result shows that the material has
Excellent chemical property.
Claims (6)
- A kind of 1. method for preparing the graphene-based aeroge of heavy metal and organic matter in collaboration electro-catalysis water, it is characterised in that should Method includes the following steps:(1)200 mg graphene oxides are ultrasonically treated 10 h with ultrasonic cell-break device in 100 ml ultra-pure waters, are obtained Finely dispersed graphene oxide solution is for use;(2)Pyrrole monomer solution is evaporated under reduced pressure, combination unit is vacuumized, package unit is wrapped up with tinfoil, prevents The pyrroles's re-oxidation only distilled distills in 100 °C of hot baths, obtains fresh pyrrole monomer and be placed in ice under a nitrogen atmosphere It is for use in case;(3)By suitable FeCl3·6H2O is added in 10 ml deionizations ultrasonic disperse to FeCl3·6H2O is completely dissolved for use;(4)25 ml polytetrafluoroethyllining linings are taken, 5 ml graphene oxide dispersions is added in, adds the fresh pyrroles of 0.5 ml Monomer by mixed solution 10 min of ultrasound in ultrasonic cell-break device, makes two kinds of solution be uniformly mixed for use;(5)Liner is put into ultrasonic washing instrument, then by FeCl3·6H2O solution is poured into ultrasound in liner, is treated anti- It should stablize, liner is covered and is put into reaction kettle, 180 °C of 12 h of heating;(6)After reaction kettle is cooled to room temperature, by the product after reaction --- redox graphene polypyrrole hydrogel is used super Pure water and alcohol clean removal impurity repeatedly;(7)Purified hydrogel is freeze-dried 24 h, obtains polypyrrole/redox graphene aeroge(PGAs)It is standby With.
- 2. preparation method according to claim 1, which is characterized in that step(1)Described in ultrasonic method be per ultrasound 30 min stir a dispersion liquid, replace an ice bath for mixed solution every 1 h, maintain the ultrasonication in the case of 0 DEG C.
- 3. step(1)Used in graphene oxide have larger specific surface area, the sufficient dispersin polymerization of polypyrrole can be made Onto graphene oxide layer, the dispersion problem of polypyrrole is improved.
- 4. preparation method according to claim 1, which is characterized in that step(1)In prepared graphene oxide dispersion A concentration of 2 mg/ml of liquid.
- 5. preparation method according to claim 1, which is characterized in that step(2)The vacuum distillation process of middle pyrrole monomer In should be in N always2It flows down.
- 6. preparation method according to claim 1, which is characterized in that step(3)Middle pyrrole monomer and FeCl3·6H2O's Molal weight ratio is 1:2.3.
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CN113813889A (en) * | 2021-09-29 | 2021-12-21 | 四川大学 | Nitrogen-doped graphene aerogel microsphere and preparation method and application thereof |
CN114990683A (en) * | 2022-06-06 | 2022-09-02 | 华北电力大学(保定) | Graphene coating stainless steel array microporous fiber and preparation method thereof |
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