CN108976417A - A kind of covalent organic polymer of triazine ring, electrode material and its preparation method and application - Google Patents

A kind of covalent organic polymer of triazine ring, electrode material and its preparation method and application Download PDF

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CN108976417A
CN108976417A CN201810571107.XA CN201810571107A CN108976417A CN 108976417 A CN108976417 A CN 108976417A CN 201810571107 A CN201810571107 A CN 201810571107A CN 108976417 A CN108976417 A CN 108976417A
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organic polymer
covalent organic
triazine ring
preparation
electrode material
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CN108976417B (en
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刘道华
宁寻安
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Guangdong Pengrui Environmental Resources Co ltd
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Guangdong University of Technology
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/0622Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms
    • C08G73/0638Polycondensates containing six-membered rings, not condensed with other rings, with nitrogen atoms as the only ring hetero atoms with at least three nitrogen atoms in the ring
    • C08G73/0644Poly(1,3,5)triazines
    • 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
    • C02F1/46104Devices therefor; Their operating or servicing
    • C02F1/46109Electrodes
    • 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
    • C02F1/4691Capacitive deionisation
    • 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
    • C02F1/46104Devices therefor; Their operating or servicing
    • C02F1/46109Electrodes
    • C02F2001/46133Electrodes characterised by the material

Abstract

The present invention relates to a kind of covalent organic polymers of triazine ring, electrode material and its preparation method and application.The preparation method of the covalent organic polymer of triazine ring, includes the following steps: S1: nitrile monomer and zinc chloride being mixed, 40 ~ 80h is reacted under zinc chloride molten condition and obtains black solid;The molar ratio of the nitrile monomer and zinc chloride is 1:1 ~ 15;S2: black solid obtained by S1 is dissolved, filter, is drying to obtain the covalent organic polymer of the triazine ring.The preparation method simple process and low cost of the covalent organic polymer of triazine ring provided by the invention, is easy to large-scale production, has very big application space in membrane capacitance deionization desalination field.The covalent organic polymer of the triazine ring being prepared, because the hetero atom effect and micropore effect of N doping have good electro adsorption capacity, with excellent hydrophily, chemical stability, thermal stability and electronics conduction efficiency, adsorption process generates electric double layer, and large capacity adsorbs charged particle.

Description

A kind of covalent organic polymer of triazine ring, electrode material and its preparation method and application
Technical field
The invention belongs to capacitive deionization electrode material fields, and in particular to a kind of covalent organic polymer of triazine ring, electricity Pole material and its preparation method and application.
Background technique
Membrane capacitance deionization technology is as a kind of emerging water treatment technology, compared to traditional water treatment technology such as reverse osmosis Thoroughly, electrodialysis, distillation etc., since it is simple, safety, low energy consumption and the advantages such as without secondary pollution cause more and more passes Note.By impressed DC voltage, charged particle in fluid is made to be adsorbed to the electrode of oppositely charged under the action of electric field force On material, and electrode surface formed electric double layer, and electrode surface covering anion-cation exchange resin film effectively reduce altogether from Interference of the son desorption to capacitive deionization desalting technology, improves Electro Sorb efficiency.After reaching adsorption saturation, pass through reversed polarity direct current Voltage realizes electrode regeneration rapidly and efficiently.The core of capacitive deionization technology is the selection and preparation of electrode material, compares Traditional carbon-based material, such as active carbon, aeroge, carbon nanotube, graphene are played, the covalent organic polymer of triazine ring has excellent Different pore structure and good conductivity, there is very big application potential in Electro Sorb field.
Currently, the method and process of the synthesis covalent organic polymer of triazine ring is cumbersome, need in glove box inert gas shielding Lower mixed raw material, be placed in ampoule bottle vacuumized with high temperature tube sealing, if residual moisture also has ampoule bottle in raw material The danger burst.This process cost is very high, is unfavorable for production application.
Therefore, a kind of preparation method of simple process is developed to obtain that there is excellent pore structure and good conductivity The covalent organic polymer of triazine ring have important research significance and application value.
Summary of the invention
It is an object of the invention to overcome, the preparation process of the covalent organic polymer of triazine ring in the prior art is cumbersome, cost High defect and deficiency provides a kind of preparation method of covalent organic polymer of triazine ring.Preparation method provided by the invention The covalent organic polymer of triazine ring can successfully be prepared, simple process and low cost is easy to large-scale production, in membrane capacitance There is very big application space in deionization desalination field.And because the covalent Organic Polymer Chemistry stability of triazine ring is good, in Industry Waste Equally there is good application potential in the processing disposition of water.The covalent organic polymer of the triazine ring being prepared has excellent Pore structure and good conductivity, surface wetting properties are good, and circular regeneration effect is good.
Another object of the present invention is to provide the covalent organic polymers of triazine ring that above-mentioned preparation method is prepared.
Another object of the present invention is to a kind of covalent organic polymer films capacitive deionization adsorption electrode materials of triazine ring.
Another object of the present invention is to provide the preparation methods of above-mentioned electrode material.
Another object of the present invention is to provide application of the above-mentioned electrode material in water process.
For achieving the above object, the present invention adopts the following technical scheme:
A kind of preparation method of the covalent organic polymer of triazine ring, includes the following steps:
S1: nitrile monomer and zinc chloride are mixed under infrared light photograph, 40 ~ 80h is reacted under zinc chloride molten condition and obtains black Solid;The molar ratio of the nitrile monomer and zinc chloride is 1:1 ~ 15;
S2: black solid obtained by S1 is dissolved, filter, is drying to obtain the covalent organic polymer of the triazine ring.
The covalent organic polymer of triazine ring using nitrile monomer as raw material, based on cyano dynamic reversible trimerization cyclisation construct and At, zinc chloride is not only used as catalyst, but also as solvent, reacts at high temperature a couple of days, nitrile due to Lewis soda acid interact, Sufficiently reaction forms the covalent organic polymer of triazine ring for a long time.The triazine ring that preparation method provided by the invention obtains covalently has The functional group modification of machine polymer is controllable, with the fabulous electronics conduction efficiency of pi-conjugated system, inhales in gas absorption, selectivity There is extremely wide application prospect in the fields such as attached, heterogeneous catalysis;And nitrogen content is high, effectively increases the hydrophily and electricity of material The electroactive area of pole.
Preferably, the molar ratio of terephthalonitrile described in S1 and zinc chloride is 1:5.
Preferably, the nitrile monomer is terephthalonitrile, 1,3,5- benzene, three nitrile, 4,4 '-biphenyl dintrile or 2,6- pyridine two One of formonitrile HCN etc..
Preferably, it is reacted at 400 ~ 500 DEG C in S1.
Preferably, the time reacted in S1 is 40h.
Preferably, the black solid is sequentially placed into stir in water, dilute hydrochloric acid solution and tetrahydrofuran in S2 and is impregnated, mistake Filter.
Preferably, the soaking time is for 24 hours.
Preferably, the dilute hydrochloric acid mass concentration is 5%.
Preferably, dry under vacuum condition in S2.
Preferably, the temperature of the drying is 150 DEG C, and the time is for 24 hours.
The covalent organic polymer of triazine ring that above-mentioned preparation method obtains is claimed in the present invention.
A kind of covalent organic polymer films capacitive deionization adsorption electrode material of triazine ring, including above-mentioned triazine ring covalently have Machine polymer, conductive agent and binder.
Preferably, the mass ratio of the covalent organic polymer of the triazine ring, conductive agent and binder is 1:0.08 ~ 0.2: 0.08~0.2。
It is further preferable that the mass ratio of the covalent organic polymer of the triazine ring, conductive agent and binder is 1:0.125: 1。
Preferably, the conductive agent is conductive black or acetylene black.
Preferably, the binder is Kynoar, polytetrafluoroethylene (PTFE) or polyvinyl alcohol.
The preparation method of above-mentioned electrode material, including following preparation step: by the covalent organic polymer of triazine ring, conductive agent It is mixed with binder, dispersion solvent is added, be dispersed with stirring uniformly, be drying to obtain the electrode material.
Preferably, the dispersion solvent is dimethyl acetamide or dimethylformamide.
Preferably, the stirring is magnetic agitation, and the speed of the magnetic agitation is 300 rpm, and the time is for 24 hours.
Preferably, the process of the drying are as follows: coated in titanium net, be dried in vacuo.
Preferably, the titanium net is 3 × 2 cm specifications, 100 mesh twill weave square hole nets.
Preferably, the vacuum drying temperature is 40 DEG C, time 3h.
Preferably, the mass ratio of the dispersion solvent and the covalent organic polymer of the triazine ring is 5 ~ 20ml:1g.
Application of the above-mentioned electrode material in water process is also within the scope of the present invention.
Preferably, the electrode material is preparing the application in membrane capacitance deionization adsorption electrode water treatment facilities.
Electrode material provided by the invention has very big application space in membrane capacitance deionization desalination field.In addition, because of three The covalent Organic Polymer Chemistry stability of piperazine ring is good, equally has good application potential in the processing disposition of industrial wastewater.
A kind of membrane capacitance deionization adsorption electrode device is also claimed in the present invention, including by above-mentioned electrode material as just The anode and cathode that pole electrode material and negative electrode material obtain.
Anode and cathode can be obtained using electrode material provided by the invention as positive electrode and negative electrode material, can be applied to In various types of films capacitive deionization adsorption electrode device in the prior art.
Membrane capacitance deionization adsorption electrode device provided by the invention has high adsorption capacity and power of regeneration etc.;It is logical It crosses conductivity meter analysis and learns that the absorption ration for the membrane capacitance deionizer equipped out is up to 18.29 mg/g, in 1 M chlorination Capacitor is 103.07 ~ 129.61 F/g when 1 mV/s of scanning speed in sodium electrolyte, and the electrode passes through multiple circular regeneration still There is very high adsorption capacity.
Preferably, the surface of the anode and cathode has been covered each by anion-exchange resin membrane and cation exchange resin Film.
Electrode surface covering anion-cation exchange resin film can effectively reduce coion desorption to capacitive deionization desalination skill Efficient desalination and rapid regeneration are realized in the interference of art.
Preferably, the membrane capacitance deionization adsorption electrode device further includes the built-in silicagel pad using organic glass as supporting plate Piece, two panels electrodes face are placed in one, external direct current power supply, which connects peristaltic pump and conductivity meter, the membrane capacitance It circulates in deionization adsorption electrode device through salt water.
It is further preferable that 5 × 5 cm of length and width of the membrane capacitance deionization adsorption electrode device;The built-in silica gel pad Area be 3 × 3cm;The pipe that the peristaltic pump is configured is 25#, and flowing velocity is 10 rpm, and sink water is 80mL;Salt water Concentration is 50 ~ 500 mg/L;It is the V of 0.8 V ~ 1.4 that the anode and cathode, which are just connecing impressed DC voltage,.
Using charged particle in device absorption salt water.It, can be anti-by external DC voltage positive and negative anodes when adsorption saturation It connects, to realize electrode regeneration.
Preferably, the reversal connection impressed DC voltage is the V of 1.2 V ~ 1.4.
Compared with prior art, the invention has the following beneficial effects:
The preparation method simple process and low cost of the covalent organic polymer of triazine ring provided by the invention, is easy to scale metaplasia It produces, has very big application space in membrane capacitance deionization desalination field.The covalent organic polymer of the triazine ring being prepared, because of nitrogen The hetero atom effect and micropore effect of doping have good electro adsorption capacity, have excellent hydrophily, chemical stability, heat Stability and electronics conduction efficiency, adsorption process generate electric double layer, large capacity adsorb charged particle, electrode surface cover yin-yang from Sub-exchange resin film effectively reduces coion and interference to capacitive deionization desalting technology is desorbed, and realizes efficient desalination and quickly Regeneration.
Detailed description of the invention
Fig. 1 is the covalent organic polymer scanning electron microscope (SEM) photograph of triazine ring prepared by embodiment 1;
It is de- that Fig. 2 is that the covalent organic polymer of triazine ring for preparing of embodiment 1 capacitive deionization in about 500 mg/L salting liquids is inhaled Attached curve graph;
Fig. 3 be embodiment 1 prepare the covalent organic polymer of triazine ring under the scanning speed of 1mV/s cyclic voltammetry curve figure;
It is de- that Fig. 4 is that the covalent organic polymer of triazine ring for preparing of embodiment 1 capacitive deionization in about 500 mg/L salting liquids is inhaled Attached regeneration curve graph;
It is de- that Fig. 5 is that the covalent organic polymer of triazine ring for preparing of embodiment 2 capacitive deionization in about 200 mg/L salting liquids is inhaled Attached curve graph.
Fig. 6 is the covalent organic polymer XRD spectra of triazine ring prepared by embodiment 5.
Fig. 7 is fourier infrared linear light spectrogram under the conditions of differential responses in each embodiment.
Specific embodiment
Below with reference to embodiment, the present invention is further explained.These embodiments are merely to illustrate the present invention rather than limitation The scope of the present invention.Test method without specific conditions in lower example embodiment usually according to this field normal condition or is pressed The condition suggested according to manufacturer;Used raw material, reagent etc., unless otherwise specified, being can be from the business such as conventional market The raw materials and reagents that approach obtains.The variation for any unsubstantiality that those skilled in the art is done on the basis of the present invention And replacement belongs to scope of the present invention.
Embodiment 1
A kind of preparation method of the covalent organic polymer of triazine ring, includes the following steps:
(1) it weighs to 1g terephthalonitrile (7.81mmol) in crucible, weighs 5.32 g zinc chloride under infrared light photograph (39.03mmol) is mixed with terephthalonitrile, covers crucible cover, is placed in Muffle furnace, and reaction 40 hours is carried out at 500 DEG C.
(2) reaction terminates to be cooled to room temperature, by gained black solid is sequentially placed into deionized water in crucible and dilute hydrochloric acid is molten Stirring is impregnated 24 hours in liquid and tetrahydrofuran, is dried in vacuo 24 hours i.e. for 150 DEG C of obtained solid powder after separation of solid and liquid Obtain the covalent organic polymer of triazine ring.
The covalent organic polymer of the triazine ring that the present embodiment obtains can be used as electrode material.The preparation process of the electrode material It is as follows:
(3) by the covalent organic polymer of triazine ring, conductive black and the Kynoar that are obtained after step (2) processing by 8:1: 1 mixing, is added appropriate dimethyl acetamide as dispersion solvent, magnetic agitation is uniformly dispersed.
(4) the resulting electrode material even application of step (3) is dried in vacuo in titanium net.
Electrode material provided in this embodiment can be used as positive electrode and negative electrode material obtains anode and cathode, be applied to film In capacitive deionization adsorption electrode device.It can be assembled by the following method and obtain a kind of membrane capacitance deionization adsorption electrode device, And salting liquid is handled.
(5) by step (4) resulting electrode assembling to making by oneself in capacitor deionizing instrument, using organic glass as built in supporting plate Hollow silica gel gasket, positive and negative electrode electrode surface are covered each by anion and cation exchange resin film, about 500 mg/L in 80 ml sinks Salt water enters in capacitor deionizing instrument by peristaltic pump, salt water bottom in and top out, makes salt under the effect of external dc 1.2V voltage Charged particle is adsorbed in the covalent organic polymer of triazine ring in water, and effluent recycling to crude brine sink, sink is interior to dispose conductivity The variation of its concentration of instrument real-time monitoring.
(6) when adsorption saturation, external 1.4 V voltage positive and negative anodes of direct current are reversely connected, to realize electrode regeneration.
Fig. 2 is the capacitive deionization adsorption desorption effect picture of made device, as shown in Figure 2, the covalent organic polymer of triazine ring Absorption ration is 18.29mg/g at 1.2 V.
Fig. 3 is electricity of the prepared covalent organic polymer of triazine ring under 1M sodium chloride electrolysis matter solution three-electrode system Chemical property figure, the rectangle reflect its good electric double layer performance, and in 1 mV/s, specific capacitance is 103.07 F/g.
Embodiment 2
A kind of preparation method of the covalent organic polymer films of triazine ring, includes the following steps:
(1) 1g terephthalonitrile is weighed in crucible, is weighed 5.32g zinc chloride under infrared light photograph and is mixed with terephthalonitrile, covers Crucible cover is placed in Muffle furnace, and reaction 60 hours is carried out at 500 DEG C.
(2) reaction terminates to be cooled to room temperature, by gained black solid is sequentially placed into deionized water in crucible and dilute hydrochloric acid is molten Stirring is impregnated 24 hours in liquid and tetrahydrofuran, is dried in vacuo 24 hours i.e. for 150 DEG C of obtained solid powder after separation of solid and liquid Obtain the covalent organic polymer of triazine ring.
The covalent organic polymer of the triazine ring that the present embodiment obtains can be used as electrode material.The preparation process of the electrode material It is as follows:
(3) by the covalent organic polymer of triazine ring, conductive black and the Kynoar that are obtained after step (2) processing by 8:1: 1 mixing, is added appropriate dimethyl acetamide as dispersion solvent, magnetic agitation is uniformly dispersed.
(4) the resulting electrode material even application of step (3) is dried in vacuo in titanium net.
Electrode material provided in this embodiment can be used as positive electrode and negative electrode material obtains anode and cathode, be applied to film In capacitive deionization adsorption electrode device.It can be assembled by the following method and obtain a kind of membrane capacitance deionization adsorption electrode device, And salting liquid is handled.
(5) by step (4) resulting electrode assembling to making by oneself in capacitor deionizing instrument, using organic glass as built in supporting plate Hollow silica gel gasket, positive and negative electrode electrode surface are covered each by anion and cation exchange resin film, about 200 mg/L in 80 ml sinks Salt water enters in capacitor deionizing instrument by peristaltic pump, salt water bottom in and top out, makes salt under the effect of 1.2 V voltage of external dc Charged particle is adsorbed in the covalent organic polymer of triazine ring in water, and effluent recycling to crude brine sink, sink is interior to dispose conductivity The variation of its concentration of instrument real-time monitoring.
(6) when adsorption saturation, external 1.2 V voltage positive and negative anodes of direct current are reversely connected, to realize electrode regeneration.
Capacitive deionization process absorption ration is 11.58 mg/g.
Embodiment 3
A kind of preparation method of the covalent organic polymer films of triazine ring, includes the following steps:
(1) 1g terephthalonitrile is weighed in crucible, is weighed 5.32g zinc chloride under infrared light photograph and is mixed with terephthalonitrile, covers Crucible cover is placed in Muffle furnace, and reaction 40 hours is carried out at 400 DEG C.
(2) reaction terminates to be cooled to room temperature, by gained black solid is sequentially placed into deionized water in crucible and dilute hydrochloric acid is molten Stirring is impregnated 24 hours in liquid and tetrahydrofuran, is dried in vacuo 24 hours i.e. for 150 DEG C of obtained solid powder after separation of solid and liquid Obtain the covalent organic polymer of triazine ring.
The covalent organic polymer of the triazine ring that the present embodiment obtains can be used as electrode material.The preparation process of the electrode material It is as follows:
(3) by the covalent organic polymer of triazine ring, conductive black and the Kynoar that are obtained after step (2) processing by 8:1: 1 mixing, is added appropriate dimethyl acetamide as dispersion solvent, magnetic agitation is uniformly dispersed.
(4) the resulting electrode material even application of step (3) is dried in vacuo in titanium net.
Electrode material provided in this embodiment can be used as positive electrode and negative electrode material obtains anode and cathode, be applied to film In capacitive deionization adsorption electrode device.It can be assembled by the following method and obtain a kind of membrane capacitance deionization adsorption electrode device, And salting liquid is handled.
(5) by step (4) resulting electrode assembling to making by oneself in capacitor deionizing instrument, using organic glass as built in supporting plate Hollow silica gel gasket, positive and negative electrode electrode surface are covered each by anion and cation exchange resin film, about 500 mg/L in 80 ml sinks Salt water enters in capacitor deionizing instrument by peristaltic pump, salt water bottom in and top out, makes salt under the effect of 1.2 V voltage of external dc Charged particle is adsorbed in the covalent organic polymer of triazine ring in water, and effluent recycling to crude brine sink, sink is interior to dispose conductivity The variation of its concentration of instrument real-time monitoring.
(6) when adsorption saturation, external 1.2 V voltage positive and negative anodes of direct current are reversely connected, to realize electrode regeneration.
Capacitive deionization process reached adsorption saturation at 20 minutes, and absorption ration is 8.5 mg/g.
Embodiment 4
A kind of preparation method of the covalent organic polymer of triazine ring, select 1g(5.12mmol) 1,3,5- benzene three nitrile replace embodiment Terephthalonitrile and zinc chloride and 1 in 1,3,5- benzene, three nitrile reaction time be 80h outside, remaining condition with embodiment 1 one It causes, obtains a kind of covalent organic polymer of triazine ring.
In addition, can be according to the method or item in embodiment 1 according to the covalent organic polymer of triazine ring provided in this embodiment Part obtains electrode material and membrane capacitance deionization adsorption electrode device, and molten to salt using membrane capacitance deionization adsorption electrode device Liquid is handled.
Embodiment 5
A kind of preparation method of the covalent organic polymer of triazine ring, except selecting 1.06g(7.81mmol) in addition to zinc chloride, remaining condition It is consistent with embodiment, obtain a kind of covalent organic polymer of triazine ring (such as Fig. 5).
In addition, can be according to the method or item in embodiment 1 according to the covalent organic polymer of triazine ring provided in this embodiment Part obtains electrode material and membrane capacitance deionization adsorption electrode device, and molten to salt using membrane capacitance deionization adsorption electrode device Liquid is handled.
Embodiment 6
A kind of preparation method of the covalent organic polymer of triazine ring, except selecting 15.90g(117.15mmol) in addition to zinc chloride, remaining Condition is consistent with embodiment, obtains a kind of covalent organic polymer of triazine ring.
In addition, can be according to the method or item in embodiment 1 according to the covalent organic polymer of triazine ring provided in this embodiment Part obtains electrode material and membrane capacitance deionization adsorption electrode device, and molten to salt using membrane capacitance deionization adsorption electrode device Liquid is handled.
Comparative example 1
A kind of preparation method of the covalent organic polymer films of triazine ring, includes the following steps:
(1) it weighs to 1g benzene dinitrile in crucible, weighs 5.32 g zinc chloride under infrared light photograph and mixed with terephthalonitrile, covered Crucible cover is placed in Muffle furnace, and reaction 20 hours is carried out at 400 DEG C.
(2) reaction terminates to be cooled to room temperature, by gained black solid is sequentially placed into deionized water in crucible and dilute hydrochloric acid is molten Stirring is impregnated 24 hours in liquid and tetrahydrofuran, is dried in vacuo 24 hours i.e. for 150 DEG C of obtained solid powder after separation of solid and liquid Obtain the covalent organic polymer of triazine ring.
The covalent organic polymer of the triazine ring that this reference examples obtains can be used as electrode material.The preparation process of the electrode material It is as follows:
(3) by the covalent organic polymer of triazine ring, conductive black and the Kynoar that are obtained after step (2) processing by 8:1: 1 mixing, is added appropriate dimethyl acetamide as dispersion solvent, is uniformly dispersed within magnetic agitation 24 hours.
(4) the resulting electrode material even application of step (3) is dried in vacuo in titanium net.
The electrode material that this reference examples provides can be used as positive electrode and negative electrode material obtains anode and cathode, be applied to film In capacitive deionization adsorption electrode device.It can be assembled by the following method and obtain a kind of membrane capacitance deionization adsorption electrode device, And salting liquid is handled.
(5) by step (4) resulting electrode assembling to making by oneself in capacitor deionizing instrument, using organic glass as built in supporting plate Hollow silica gel gasket, positive and negative electrode electrode surface are covered each by anion and cation exchange resin film, about 500 mg/L in 80 ml sinks Salt water enters in capacitor deionizing instrument by peristaltic pump, salt water bottom in and top out, makes salt under the effect of 1.2 V voltage of external dc Charged particle is adsorbed in the covalent organic polymer of triazine ring in water, and effluent recycling to crude brine sink, sink is interior to dispose conductivity The variation of its concentration of instrument real-time monitoring.
(6) when adsorption saturation, external 1.4 V voltage positive and negative anodes of direct current are reversely connected, to realize electrode regeneration.
Capacitive deionization process has been rapidly achieved adsorption saturation in 20 minutes, and absorption ration is 4.40 mg/g.1 Its specific capacitance is 111.82 F/g under the scanning speed of mV/s.

Claims (10)

1. a kind of preparation method of the covalent organic polymer of triazine ring, which comprises the steps of:
S1: nitrile monomer and zinc chloride are mixed under infrared light photograph, 40 ~ 80h is reacted under zinc chloride molten condition and obtains black Solid;The molar ratio of the nitrile monomer and zinc chloride is 1:1 ~ 15;
S2: black solid obtained by S1 is dissolved, filter, is drying to obtain the covalent organic polymer of the triazine ring.
2. the preparation method of the covalent organic polymer of triazine ring according to claim 1, which is characterized in that benzene described in S1 The molar ratio of dintrile and zinc chloride is 1:5.
3. the preparation method of the covalent organic polymer of triazine ring according to claim 1, which is characterized in that the nitrile monomer For terephthalonitrile, three nitrile of 1,3,5- benzene, 4,4 '-biphenyl dintrile or 2,6- pyridine dimethoxy nitrile.
4. the preparation method of the covalent organic polymer of triazine ring according to claim 1, which is characterized in that in S1 in 400 ~ It is reacted at 700 DEG C.
5. the covalent organic polymer of triazine ring that any preparation method of claim 1 ~ 4 obtains.
6. a kind of covalent organic polymer films capacitive deionization adsorption electrode material of triazine ring, which is characterized in that wanted including right Ask the covalent organic polymer of 5 triazine rings, conductive agent and binder.
7. electrode material according to claim 6, which is characterized in that the covalent organic polymer of the triazine ring, conductive agent and The mass ratio of binder is 1:0.08 ~ 0.2:0.08 ~ 0.2.
8. the preparation method of any electrode material of claim 6 ~ 7, which is characterized in that including following preparation step: by three The covalent organic polymer of piperazine ring, conductive agent and binder mixing, are added dispersion solvent, are dispersed with stirring uniformly, are drying to obtain described Electrode material.
9. application of any electrode material of claim 6 ~ 7 in water process.
10. applying according to claim 9, which is characterized in that the electrode material is preparing membrane capacitance deionization absorption electricity Application in the water treatment facilities of pole.
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CN109517187A (en) * 2018-12-12 2019-03-26 中国科学院兰州化学物理研究所 A kind of preparation method of covalent triazine framework polymer under open system
CN109867781A (en) * 2019-01-29 2019-06-11 江汉大学 A kind of porous conjugated polymer material and preparation method thereof
CN110479379A (en) * 2019-08-28 2019-11-22 浙江工业大学 A kind of covalent organic frame material catalyst and its preparation method and application based on load Ru nano particle
CN111115770A (en) * 2019-12-31 2020-05-08 天津万峰环保科技有限公司 Electrode material for capacitive deionization and capacitive deionization device
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CN112657472A (en) * 2020-12-21 2021-04-16 吉林师范大学 Ionic covalent triazine skeleton polymer material and preparation method and application thereof
CN114736370A (en) * 2022-04-25 2022-07-12 吉林师范大学 Fluorine-doped covalent triazine skeleton polymer and sulfur-containing compound thereof, and preparation method and application thereof

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CN109517187A (en) * 2018-12-12 2019-03-26 中国科学院兰州化学物理研究所 A kind of preparation method of covalent triazine framework polymer under open system
CN109517187B (en) * 2018-12-12 2020-12-01 中国科学院兰州化学物理研究所 Preparation method of covalent triazine framework polymer under open system
CN109867781A (en) * 2019-01-29 2019-06-11 江汉大学 A kind of porous conjugated polymer material and preparation method thereof
CN110479379A (en) * 2019-08-28 2019-11-22 浙江工业大学 A kind of covalent organic frame material catalyst and its preparation method and application based on load Ru nano particle
CN110479379B (en) * 2019-08-28 2022-07-22 浙江工业大学 Covalent organic framework material catalyst based on loaded Ru nanoparticles and preparation method and application thereof
CN112164789A (en) * 2019-11-04 2021-01-01 多氟多化工股份有限公司 Application of triazine-carbazole polymer in organic electrode material
CN112164789B (en) * 2019-11-04 2022-02-22 多氟多新材料股份有限公司 Application of triazine-carbazole polymer in organic electrode material
CN111115770A (en) * 2019-12-31 2020-05-08 天津万峰环保科技有限公司 Electrode material for capacitive deionization and capacitive deionization device
CN112657472A (en) * 2020-12-21 2021-04-16 吉林师范大学 Ionic covalent triazine skeleton polymer material and preparation method and application thereof
CN112657472B (en) * 2020-12-21 2024-02-13 吉林师范大学 Ionic covalent triazine skeleton polymer material and preparation method and application thereof
CN114736370A (en) * 2022-04-25 2022-07-12 吉林师范大学 Fluorine-doped covalent triazine skeleton polymer and sulfur-containing compound thereof, and preparation method and application thereof

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