CN107487815A - A kind of preparation and application for cooperateing with the graphene-based adsorbent of heavy metal and organic matter in electro-catalysis water - Google Patents

A kind of preparation and application for cooperateing with the graphene-based adsorbent of heavy metal and organic matter in electro-catalysis water Download PDF

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Publication number
CN107487815A
CN107487815A CN201710830339.8A CN201710830339A CN107487815A CN 107487815 A CN107487815 A CN 107487815A CN 201710830339 A CN201710830339 A CN 201710830339A CN 107487815 A CN107487815 A CN 107487815A
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graphene
polypyrrole
preparation
solution
aeroge
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张梅
张一梅
张丹丹
赵亚龙
王利群
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North China Electric Power University
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North China Electric Power University
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F1/46114—Electrodes in particulate form or with conductive and/or non conductive particles between them
    • 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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46133—Electrodes characterised by the material
    • 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
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46152—Electrodes characterised by the shape or form
    • 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
    • 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
    • C02F2101/30—Organic compounds

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inert Electrodes (AREA)

Abstract

The preparation method of the graphene-based aeroge of heavy metal and organic matter and its application in water process in electro-catalysis water are cooperateed with the invention discloses a kind of, graphene is combined with pyrrole monomer using hydro-thermal method, obtains polypyrrole/redox graphene aeroge（PGAs）.Not only the porous with graphene but also the reproducibility with polypyrrole, the porous and dispersiveness of graphene can be very good the excessive the shortcomings that reuniting for solving pyrroles to 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 the 3rd granule electrode, for removing Cr VI（Cr(VI)）And bisphenol-A（BPA）Mixed solution.Compared with prior art, the present invention have the characteristics of water removal middle and high concentration, high toxicity are removed in collaboration, persistent organic pollutants weigh and metal mixed waste water, non-secondary pollution.

Description

A kind of system for cooperateing with the graphene-based adsorbent of heavy metal and organic matter in electro-catalysis water Standby and application
Technical field
The present invention relates to the preparation side of a kind of collaboration electro-catalysis heavy metals ion and the graphene-based material of organic matter Method and application, the water treatment field belonged in environmental protection.
Background technology
With the continuous complication of waste component, the processing of heavy metal and organic matter composite waste is gradually closed by people Note.The toxicity of metal ion is big, distribution is wide, not degradable, and long-term existence will pass through the low forms of life and plant etc. in the environment Constantly enrichment, enters human body eventually through food chain, causes carcinogenic mutagenesis of teratogenesis etc. to have a strong impact on to human body.Organic wastewater Colourity is high, there is peculiar smell.Some waste water give out pungent stench, are had undesirable effect to surrounding environment.Typically conventional physico-chemical process There are extraction, absorption method, concentration method, sonication etc..Research shows heavy metal and organic matter be discharged into environment general Serious threat is produced to ecology and human health.Therefore, it is necessary to take appropriate measures, these are removed from water body has serious danger Harmful composite waste.
Electro-catalysis has proved to be one of effective ways of processing Pollutants in Wastewater.Its mechanism and dynamics are extensive Research.The method generally use two-dimensional electrode processing system of traditional electro-catalysis processing waste water, and mostly just in single The pollutant of composition.In three-diemsnional electrode system, after making alive between two principal electrode films, granule electrode will be polarized, into To be electrolysis zone one by one, treatment effect of the whole system to sewage will be greatly improved.By high performance material as the 3rd Sub-electrode, pollutant is adsorbed onto surrounding by granule electrode by absorption, then the pollutant of surrounding will be adsorbed onto by electrolysis Electrolysis removes, and granule electrode will be activated, and can adsorb pollutant again and carry out cell reaction again to surrounding.Above-mentioned reaction will be Absorption-electro-catalysis-is formed in three-diemsnional electrode system and adsorbs-the circular response of electro-catalysis again again, this will greatly lift it to dirt Contaminate the treatment effect of thing.Therefore, prepare can remove simultaneously multiple pollutant material be used for electro-catalysis system will have it is certain Practical value.
The presence in the form of two kinds of Cr (VI) and Cr (III) in water environment due to Cr, and toxicity of the Cr (VI) than Cr (III) It is stronger, it is not easily removed in aqueous, there is farther migration, will be to health through plants enriched again through food chain Cause very big threat.Cr (VI) is one of five poisonous creatures: scorpion, viper, centipede, house lizard, toad heavy metal that Environmental Protection Agency is assert, has teratogenesis carcinogenic mutagenic Effect.Environment incretion interferent is that one kind common are organic pollutants.Wherein, there is teratogenesis, cause the bisphenol-A of leukaemia effect （BPA）Even quote in the feeding bottle of baby and be found in water source.Therefore, present invention is generally directed to the Cr (VI) and BPA in water The removal of the mixed solution of two kinds of pollutants, prepare the graphene-based material that collaboration removes two heavy metal species.
Au and Pd synthesis on the carbon nanotubes, is applied to three-diemsnional electrode processing system by Sun et al. as granule electrode In system, the system can realize while reducing heavy metal Cr (VI) and oxidation heavy metal As (III).Thus, the present invention will utilize Three-diemsnional electrode simultaneous oxidation and the characteristic of reduction, are directed to the removal of the mixed solution of two kinds of pollutants of Cr (VI) and BPA, prepare It is a kind of to cooperate with the material for removing two kinds of pollutions to construct three-dimensional electrode reactor system as granule electrode.Graphene has as one kind The high-performance novel material of the three-dimensional pore space structure of high-specific surface area is widely used in the research in each field.This seminar early stage The graphene composite material of the N doping of preparation is applied to bisphenol-A as granule electrode（BPA）Electro-catalysis obtain removal effect Fruit is more than 90%（Journal of Hazardous Materials, 2017, the 332nd phase, the 70-78 pages）.Polypyrrole conduct A kind of conducting polymer will greatly improve its electric action as granule electrode.Because oxygen can occurs in it between heavy metal Change reduction, be also largely used in the processing of heavy metal wastewater thereby.Tian et al. is acted on using the suppression liberation of hydrogen of polypyrrole, It is combined to as material modified on electrode, for removing Cr (VI) heavy metal wastewater thereby（Journal of Hazardous Materials, 2012, the 15th phase, the 225-226 pages）.The advantages of present invention is by comprehensive graphene and polypyrrole, is answered Aeroge is synthesized to be used to construct the three-diemsnional electrode system for cooperateing with removal Cr (VI) and BPA as granule electrode.
The content of the invention
It is an object of the invention to provide a kind of graphene for preparing collaboration electro-catalysis organic matter and heavy metal mixed solution The method of base aerogel particles electrode and its application in water process, it may be implemented in 30 minutes to the efficient association of mixed pollutants Same removal.
The present invention provides a kind of graphene-based aerogel particles electricity of collaboration electro-catalysis organic matter and heavy metal mixed solution The preparation method of pole, comprises the following steps：
（1）200 mg graphene oxides are ultrasonically treated 10 h with ultrasonic cell-break device in 100 ml ultra-pure waters, obtained Finely dispersed graphene oxide solution is stand-by；
（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, distilled under a nitrogen atmosphere in 100 °C of hot baths, it is stand-by to obtain fresh pyrrole monomer；
（3）By appropriate 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, adds the fresh pyrroles of 0.5 ml Monomer, by mixed solution 10 min of ultrasound in ultrasonic cell-break device, it is well mixed two kinds of solution stand-by；
（5）Liner is put into ultrasonic washing instrument, then by FeCl3·6H2O solution is poured into liner in the case of ultrasound, is treated Stable reaction, liner is covered and is put into reactor, 180 °C of 12 h of heating；
（6）After question response kettle is cooled to room temperature, by reacted product --- redox graphene polypyrrole hydrogel is used super Pure water and alcohol clean the removal of impurity repeatedly；
（7）Hydrogel after purification is freeze-dried 24 h, obtains polypyrrole/redox graphene aeroge（PGAs）It is standby With.
Step（1）Described in ultrasonic method be per ultrasound 30 min, stir a dispersion liquid, it is molten for mixing every 1 h Ice bath of fluid exchange, maintain the ultrasonication in the case of 0 °C.
Step（1）In used graphene oxide there is larger specific surface area, polypyrrole can be made sufficiently to disperse poly- Close in graphene oxide layer, improve the dispersion problem of polypyrrole.
Step（1）In the concentration of prepared graphene oxide dispersion be 2 mg/ml.
Step（2）N should be in the vacuum distillation process of middle pyrrole monomer all the time2Flow down.
Step（3）Middle pyrrole monomer and FeCl3·6H2O molal weight ratio is 1：2.3.
This elctro-catalyst prepared by the inventive method is characterised by：Graphene oxide plays support work in system With preventing the reunion of polypyrrole.Its more empty structure is advantageous to enrichment of the dirty water pollutant in electro-catalysis system, and provides Substantial amounts of reaction site.Highly toxic heavy metal ion can be reduced to low by polypyrrole because it has certain oxidisability The metal ion of toxicity, so as to improve its electro-catalysis effect.
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 particulate It is poly-, enrichment of the material to persistence organic pollutant in water body and heavy metal mixed solution is greatly strengthen again.Polarizing During for electrocatalytic oxidation reduction provide substantial amounts of reaction site and micro- reaction zone.Heavy metal can be reduced to by polypyrrole The metal ion of hypotoxicity.Contained in whole 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.There is synergistic sorption work to water middle and high concentration, high toxicity, persistent organic pollutants and heavy metal mixed solution The characteristics of with, non-secondary pollution.
Brief description of the drawings
Fig. 1 is the scanning electron microscope (SEM) photograph for the graphene-based aeroge that the embodiment of the present invention 1 provides；
Fig. 2 (a) is the X ray diffracting spectrum of graphene-based aeroge and graphene oxide that the embodiment of the present invention 2 provides；
Fig. 2 (b) is the X ray diffracting spectrum for the graphene-based 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 clearance of two kinds of mixed pollutants with the time；
Fig. 3 (b) is that the removal dynamics for Cr in mixed pollutants (VI) that the embodiment of the present invention 3 provides is fitted；
The removal dynamics fitting that Fig. 3 (c) is BPA in the mixed pollutants that the embodiment of the present invention 3 provides；
Fig. 4 is the Cr (VI) and BPA in the graphene-based aeroge electro-catalysis removal mixed solution that the embodiment of the present invention 4 provides Adsorbance is influenceed situation by pH.
Embodiment
To enable the above-mentioned purpose of invention, feature and advantage 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, obtained Finely dispersed graphene oxide solution is stand-by；
（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, distilled under a nitrogen atmosphere in 100 °C of hot baths, it is stand-by to obtain fresh pyrrole monomer；
（3）Appropriate FeCl36H2O is added to ultrasonic disperse in 10 ml deionizations be completely dissolved to FeCl36H2O and treated With；
（4）25 ml polytetrafluoroethyllining linings are taken, 5 ml graphene oxide dispersions is added, adds the fresh pyrroles of 0.5 ml Monomer, by mixed solution 10 min of ultrasound in ultrasonic cell-break device, it is well mixed two kinds of solution stand-by；
（5）Liner is put into ultrasonic washing instrument, then FeCl36H2O solution is poured into liner in the case of ultrasound, is treated Stable reaction, liner is covered and is put into reactor, 180 °C of 12 h of heating；
（6）After question response kettle is cooled to room temperature, by reacted product --- redox graphene polypyrrole hydrogel is used super Pure water and alcohol clean the removal of impurity repeatedly；
（7）Hydrogel after purification is freeze-dried 24 h, it is standby to obtain PGAs.
The polypyrrole redox graphene material of preparation is placed in SEM（SEM）The shape of lower observation material State and particle diameter, find to be attached with bar-shaped polypyrrole chain on redox graphene lamella, show that pyrrole monomer is very good Dispersiveness 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, obtained Finely dispersed graphene oxide solution is stand-by；
（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, distilled under a nitrogen atmosphere in 100 °C of hot baths, it is stand-by to obtain fresh pyrrole monomer；
（3）Appropriate FeCl36H2O is added to ultrasonic disperse in 10 ml deionizations be completely dissolved to FeCl36H2O and treated With；
（4）25 ml polytetrafluoroethyllining linings are taken, 5 ml graphene oxide dispersions is added, adds the fresh pyrroles of 0.5 ml Monomer, by mixed solution 10 min of ultrasound in ultrasonic cell-break device, it is well mixed two kinds of solution stand-by；
（5）Liner is put into ultrasonic washing instrument, then FeCl36H2O solution is poured into liner in the case of ultrasound, is treated Stable reaction, liner is covered and is put into reactor, 180 °C of 12 h of heating；
（6）After question response kettle is cooled to room temperature, by reacted product --- redox graphene polypyrrole hydrogel is used super Pure water and alcohol clean the removal of impurity repeatedly；
（7）Hydrogel after purification is freeze-dried 24 h, it is standby to obtain redox graphene polypyrrole aeroge.
In order to further determine that on the whether poly- polymer and graphite alkene of pyrroles and pay close attention to whether graphene oxide is reduced to graphite Alkene, prepared sample is subjected to X ray diffracting spectrum analysis.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）It is shown, there are three obvious polypyrrole peaks in PGAs figure 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, obtained Finely dispersed graphene oxide solution is stand-by；
（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, distilled under a nitrogen atmosphere in 100 °C of hot baths, it is stand-by to obtain fresh pyrrole monomer；
（3）Appropriate FeCl36H2O is added to ultrasonic disperse in 10 ml deionizations be completely dissolved to FeCl36H2O and treated With；
（4）25 ml polytetrafluoroethyllining linings are taken, 5 ml graphene oxide dispersions is added, adds the fresh pyrroles of 0.5 ml Monomer, by mixed solution 10 min of ultrasound in ultrasonic cell-break device, it is well mixed two kinds of solution stand-by；
（5）Liner is put into ultrasonic washing instrument, then FeCl36H2O solution is poured into liner in the case of ultrasound, is treated Stable reaction, liner is covered and is put into reactor, 180 °C of 12 h of heating；
（6）After question response kettle is cooled to room temperature, by reacted product --- redox graphene polypyrrole hydrogel is used super Pure water and alcohol clean the removal of impurity repeatedly；
（7）Hydrogel after purification is freeze-dried 24 h, it is standby to obtain redox graphene polypyrrole aeroge.
By the material of preparation with Cr（VI）It is that target contaminant carries out electro-catalysis experiment with BPA mixed solutions, checking is made The removal capacity of standby material.By the Cr that 200 mL concentration are 80 mg/L（VI）With 20 mg/L BPA reaction solution be put into The graphene-based granule electrode prepared by 200 mg is added in the reaction vessel of stable type Ni―Ti anode and stainless (steel) wire negative electrode composition. 1.0mL samples are collected at predetermined intervals, and it is filtered by 0.22 micron of PES injection filter to remove solid immediately Particle.Pass through high performance liquid chromatography（HPLC）Measure residual BPA concentration, is determined mixed using diphenyl carbazide spectrophotometry Close the Cr remained in solution concentration.As a result show, when pH is 3, can be achieved 30 minutes to Cr（VI）And BPA（Fig. 3（a））'s Clearance reaches 100.00% and 99.17%.And removal kinetic reaction equation has been fitted, the removal of two kinds of pollutants meets one Level place to go dynamics dynamics, its speed constant are respectively：kobs-Cr（VI）= 1.0094（R2=0.9334）, kobs-BPA= 0.8958 （R2=0.9485）, such as Fig. 3（b）And Fig. 3（c）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, obtained Finely dispersed graphene oxide solution is stand-by；
（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, distilled under a nitrogen atmosphere in 100 °C of hot baths, it is stand-by to obtain fresh pyrrole monomer；
（3）Appropriate FeCl36H2O is added to ultrasonic disperse in 10 ml deionizations be completely dissolved to FeCl36H2O and treated With；
（4）25 ml polytetrafluoroethyllining linings are taken, 5 ml graphene oxide dispersions is added, adds the fresh pyrroles of 0.5 ml Monomer, by mixed solution 10 min of ultrasound in ultrasonic cell-break device, it is well mixed two kinds of solution stand-by；
（5）Liner is put into ultrasonic washing instrument, then FeCl36H2O solution is poured into liner in the case of ultrasound, is treated Stable reaction, liner is covered and is put into reactor, 180 °C of 12 h of heating；
（6）After question response kettle is cooled to room temperature, by reacted product --- redox graphene polypyrrole hydrogel is used super Pure water and alcohol clean the removal of impurity repeatedly；
（7）Hydrogel after purification is freeze-dried 24 h, it is standby to obtain redox graphene polypyrrole aeroge.
With under the identical experiment condition of embodiment 3, having inquired into the shadow of electro-catalysis clearance of the pH value to whole system Ring（As shown in Figure 4）.Test result indicates that：In pH=3, removal effect is apparently higher than other situations.Due in acid condition, Be advantageous to hydroxyl radical free radical（·OH）Generation.OH, which is that degraded BPA is important, obtains a kind of oxidant, can accelerate BPA's Degraded.Simultaneously as BPA and Cr (VI) redox have certain synergy, the quickening of BPA degradeds is also beneficial to Cr (VI) reduction.In acid condition, PPy also accelerates the speed that Cr (VI) is converted into Cr (III).

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 comprises the following steps：
    （1）200 mg graphene oxides are ultrasonically treated 10 h with ultrasonic cell-break device in 100 ml ultra-pure waters, obtained Finely dispersed graphene oxide solution is stand-by；
    （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, distilled under a nitrogen atmosphere in 100 °C of hot baths, obtain fresh pyrrole monomer and be placed in ice It is stand-by in case；
    （3）By appropriate FeCl3·6H2O is added in 10 ml deionizations ultrasonic disperse to FeCl3·6H2O is completely dissolved stand-by；
    （4）25 ml polytetrafluoroethyllining linings are taken, 5 ml graphene oxide dispersions is added, adds the fresh pyrroles of 0.5 ml Monomer, by mixed solution 10 min of ultrasound in ultrasonic cell-break device, it is well mixed two kinds of solution stand-by；
    （5）Liner is put into ultrasonic washing instrument, then by FeCl3·6H2O solution is poured into liner in the case of ultrasound, is treated anti- It should stablize, liner is covered and is put into reactor, 180 °C of 12 h of heating；
    （6）After question response kettle is cooled to room temperature, by reacted product --- redox graphene polypyrrole hydrogel is used super Pure water and alcohol clean the removal of impurity repeatedly；
    （7）Hydrogel after purification is freeze-dried 24 h, obtains polypyrrole/redox graphene aeroge（PGAs）It is standby With.
  2. 2. preparation method according to claim 1, it is characterised in that step（1）Described in ultrasonic method be per ultrasound 30 min, a dispersion liquid is stirred, be that mixed solution changes an ice bath every 1 h, maintain the ultrasonication in the case of 0 DEG C.
  3. 3. step（1）In used graphene oxide there is 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, it is characterised in that step（1）In prepared graphene oxide disperse The concentration of liquid is 2 mg/ml.
  5. 5. preparation method according to claim 1, it is characterised in that step（2）The vacuum distillation process of middle pyrrole monomer In should be in N all the time2Flow down.
  6. 6. preparation method according to claim 1, it is characterised in that step（3）Middle pyrrole monomer and FeCl3·6H2O's Molal weight ratio is 1：2.3.
CN201710830339.8A 2017-09-15 2017-09-15 A kind of preparation and application for cooperateing with the graphene-based adsorbent of heavy metal and organic matter in electro-catalysis water Withdrawn CN107487815A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108242341A (en) * 2017-12-21 2018-07-03 华北电力大学 A kind of preparation of multifunctional graphite vinyl sill and its application in terms of ultracapacitor and water process
CN108371944A (en) * 2018-02-24 2018-08-07 深州市工程塑料有限公司 Heavy metal ion composite adsorption film, preparation method and the method for handling effluent containing heavy metal ions
CN108439530A (en) * 2018-04-17 2018-08-24 华东理工大学 A method of structure composite organic-inorganic material is for synchronous removal hexavalent chromium and phenol
CN111410287A (en) * 2020-04-03 2020-07-14 中山大学 Treatment method for oxidizing organic pollutants and hexavalent chromium by using nano-carbon material in cooperation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108242341A (en) * 2017-12-21 2018-07-03 华北电力大学 A kind of preparation of multifunctional graphite vinyl sill and its application in terms of ultracapacitor and water process
CN108371944A (en) * 2018-02-24 2018-08-07 深州市工程塑料有限公司 Heavy metal ion composite adsorption film, preparation method and the method for handling effluent containing heavy metal ions
CN108439530A (en) * 2018-04-17 2018-08-24 华东理工大学 A method of structure composite organic-inorganic material is for synchronous removal hexavalent chromium and phenol
CN111410287A (en) * 2020-04-03 2020-07-14 中山大学 Treatment method for oxidizing organic pollutants and hexavalent chromium by using nano-carbon material in cooperation

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Application publication date: 20171219