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 PDF

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CN108242341A
CN108242341A CN201711390367.9A CN201711390367A CN108242341A CN 108242341 A CN108242341 A CN 108242341A CN 201711390367 A CN201711390367 A CN 201711390367A CN 108242341 A CN108242341 A CN 108242341A
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graphene
polypyrrole
preparation
solution
aeroge
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张梅
张一梅
张丹丹
武盼盼
赖毓娴
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North China Electric Power University
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North China Electric Power University
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22Electrodes
    • H01G11/24Electrodes 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/06Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
    • B01J35/23
    • B01J35/33
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/42Treatment of water, waste water, or sewage by ion-exchange
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00Processes of treating or compounding macromolecular substances
    • C08J3/02Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/075Macromolecular gels
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22Electrodes
    • H01G11/30Electrodes characterised by their material
    • H01G11/32Carbon-based
    • H01G11/36Nanostructures, e.g. nanofibres, nanotubes or fullerenes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22Electrodes
    • H01G11/30Electrodes characterised by their material
    • H01G11/48Conductive polymers
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2379/00Characterised 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
    • C08J2379/04Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13Energy storage using capacitors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process 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

The preparation of a kind of multifunctional graphite vinyl sill and its in ultracapacitor and water process The application of aspect
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)

  1. 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. 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. 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. 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. 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. 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.
CN201711390367.9A 2017-12-21 2017-12-21 A kind of preparation of multifunctional graphite vinyl sill and its application in terms of ultracapacitor and water process Withdrawn CN108242341A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102627768A (en) * 2012-04-10 2012-08-08 上海交通大学 Preparation method of grapheme/polypyrrole nanocomposite material for super capacitor electrode
CN105368045A (en) * 2014-08-27 2016-03-02 中国科学院苏州纳米技术与纳米仿生研究所 Graphene-polypyrrole composite aerogel and preparation method and application thereof
CN106009444A (en) * 2016-07-15 2016-10-12 武汉工程大学 Preparation method of polypyrrole-graphene-polyvinyl alcohol composite aerogel
CN107321327A (en) * 2017-07-11 2017-11-07 华北电力大学 The preparation and application of the graphene-based adsorbent of heavy metal and organic matter in a kind of synergistic sorption water
CN107487815A (en) * 2017-09-15 2017-12-19 华北电力大学 A kind of preparation and application for cooperateing with the graphene-based adsorbent of heavy metal and organic matter in electro-catalysis water

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102627768A (en) * 2012-04-10 2012-08-08 上海交通大学 Preparation method of grapheme/polypyrrole nanocomposite material for super capacitor electrode
CN105368045A (en) * 2014-08-27 2016-03-02 中国科学院苏州纳米技术与纳米仿生研究所 Graphene-polypyrrole composite aerogel and preparation method and application thereof
CN106009444A (en) * 2016-07-15 2016-10-12 武汉工程大学 Preparation method of polypyrrole-graphene-polyvinyl alcohol composite aerogel
CN107321327A (en) * 2017-07-11 2017-11-07 华北电力大学 The preparation and application of the graphene-based adsorbent of heavy metal and organic matter in a kind of synergistic sorption water
CN107487815A (en) * 2017-09-15 2017-12-19 华北电力大学 A kind of preparation and application for cooperateing with the graphene-based adsorbent of heavy metal and organic matter in electro-catalysis water

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113813889A (en) * 2021-09-29 2021-12-21 四川大学 Nitrogen-doped graphene aerogel microsphere and preparation method and application thereof
CN113813889B (en) * 2021-09-29 2023-03-03 四川大学 Nitrogen-doped graphene aerogel microsphere as well as 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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