CN104877114B - The method of solvent hot preparation polythiophene Ni ferrite nano composite material - Google Patents
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- 239000000463 material Substances 0.000 title claims abstract description 43
- 239000002904 solvent Substances 0.000 title claims abstract description 27
- 239000002114 nanocomposite Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 17
- 229920000123 polythiophene Polymers 0.000 title abstract description 27
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 claims abstract description 47
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 29
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229930192474 thiophene Natural products 0.000 claims abstract description 24
- 239000000178 monomer Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- SPIFDSWFDKNERT-UHFFFAOYSA-N nickel;hydrate Chemical compound O.[Ni] SPIFDSWFDKNERT-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 150000002823 nitrates Chemical class 0.000 claims abstract 2
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 4
- VCJMYUPGQJHHFU-UHFFFAOYSA-N iron(III) nitrate Inorganic materials [Fe+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VCJMYUPGQJHHFU-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 229910052738 indium Inorganic materials 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- LITYQKYYGUGQLY-UHFFFAOYSA-N iron nitric acid Chemical compound [Fe].O[N+]([O-])=O LITYQKYYGUGQLY-UHFFFAOYSA-N 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 27
- 229910003264 NiFe2O4 Inorganic materials 0.000 abstract description 21
- 239000000696 magnetic material Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 6
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 5
- 238000006116 polymerization reaction Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 229910052596 spinel Inorganic materials 0.000 abstract description 4
- 239000011029 spinel Substances 0.000 abstract description 4
- 239000013078 crystal Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000003993 interaction Effects 0.000 abstract description 3
- 230000004048 modification Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 239000003054 catalyst Substances 0.000 abstract description 2
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 2
- 239000002159 nanocrystal Substances 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 230000001376 precipitating effect Effects 0.000 abstract description 2
- 230000006798 recombination Effects 0.000 abstract description 2
- 238000005215 recombination Methods 0.000 abstract description 2
- 229910002651 NO3 Inorganic materials 0.000 description 10
- 238000007792 addition Methods 0.000 description 10
- 230000005415 magnetization Effects 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- 229910002554 Fe(NO3)3·9H2O Inorganic materials 0.000 description 6
- NQNBVCBUOCNRFZ-UHFFFAOYSA-N nickel ferrite Chemical compound [Ni]=O.O=[Fe]O[Fe]=O NQNBVCBUOCNRFZ-UHFFFAOYSA-N 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002105 nanoparticle Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229910003145 α-Fe2O3 Inorganic materials 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 229920000547 conjugated polymer Polymers 0.000 description 2
- 239000006249 magnetic particle Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 241000736199 Paeonia Species 0.000 description 1
- 235000006484 Paeonia officinalis Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002173 high-resolution transmission electron microscopy Methods 0.000 description 1
- 238000009396 hybridization Methods 0.000 description 1
- 125000001967 indiganyl group Chemical group [H][In]([H])[*] 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011553 magnetic fluid Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(II) nitrate Inorganic materials [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- -1 therefore Substances 0.000 description 1
- 150000003577 thiophenes Chemical class 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
The invention provides a kind of solvent hot preparation polythiophene Ni ferrite nano composite material（PTh‑NF）Method, belong to field of compound material.The present invention is raw material with nine water ferric nitrates, six water nickel nitrates, thiophene, with ethanol as solvent, is obtained using the step of solvent-thermal method one.In the composite, NiFe2O4It is the nanocrystal with spinel structure, and PTh and the synergy between it so that the crystal property and magnetic property of composite are better than single inorganic magnetic material.The present invention is being not added with any precipitating reagent, catalyst, need not more carry out NiFe2O4The surface modification of material a, step realizes NiFe2O4Generation and effectively compound with PTh, prepare the alternate PTh NF nano composite materials that there is strong interaction.In recombination process, Fe3+There is the effect for promoting or being catalyzed to the polymerization of monomer thiophene, and polymer P Th effectively prevents NiFe simultaneously2O4The reunion of magnetic material, improves NiFe2O4Magnetic property.In addition, the present invention has the outstanding advantages such as process is simple, short flow, low cost, environmental protection, be conducive to industrialization.
Description
Technical field
The present invention relates to a kind of preparation of polythiophene-Ni ferrite (PTh-NF) nano composite material, more particularly to one kind
The method of solvent hot preparation polythiophene-Ni ferrite nano composite material, belongs to nano composite material technical field.
Background technology
The application of magnetic material is very extensive, can be used in electroacoustic, telecommunications, ammeter, motor, can also make memory cell, microwave
Element etc..Can be used for record instruction, the voucher that music, the tape of image information, the magnetic storage apparatus of computer, passenger ride
Magnetic card settled accounts with admission fee etc..Spinel-type ferrite is the important magnetic material of a class, and it can be used to prevent electromagnetism amplitude
Wave absorbing agent in jet device and stealth material etc., with it is cheap, absorbing property is excellent the features such as.The nickel of spinel structure
Ferrite (NiFe2O4) magnetic material, due to unique physics, chemical property and magnetism characteristic, and its saturated magnetization
Intensity is higher, magnetocrystalline anisotropy constant is larger, chemical stability is preferable and it is corrosion-resistant and abrasion, therefore microwave absorption,
Magnetic recording and magnetic fluid aspect have boundless application prospect.
Polythiophene (PTh) be molecular backbone be conjugated structure a kind of conducting polymer composite, with rigidity it is good, acidproof,
The advantages of alkaline-resisting, high temperature resistant and good environmental stability.Using it as organic inert separation layer, only particle does not bond offer
Matrix, is effectively modified magnetic-particle, and can be controlled the growth size of magnetic-particle, reunion, even be improved magnetic
The performance of material.Therefore, by NiFe2O4Carrying out with PTh is effectively combined, and the magnetic material of function admirable is obtained, with extensive
Application prospect.
The content of the invention
Polythiophene-Ni ferrite nano composite material is prepared it is an object of the present invention to provide a kind of solvent-thermal method（PTh-NF）'s
Technique.
First, polythiophene-Ni ferrite nano composite material（PTh-NF）Preparation
1st, the preparation of nano composite material
Polythiophene of the present invention-Ni ferrite nano composite material（PTh-NF）Preparation, be with nine water ferric nitrate (Fe
(NO3)3·9H2O), six water nickel nitrate (Ni (NO3)2·6H2O), thiophene (S) is raw material, and ethanol is solvent, using solvent-thermal method
（STM）One step is obtained.Specific preparation technology is as follows：
By Ni (NO3)2·6H2O、Fe(NO3)3·9H2O is dissolved in absolute ethyl alcohol, is added monomer thiophene and is uniformly dispersed；So
After be transferred in ptfe autoclave, at 160 ~ 220 DEG C react 9 ~ 12 h；Reaction is centrifuged after terminating, washs, dries, i.e.,
Obtain PTh-NF nano composite materials.
Ni (the NO3)2·6H2O and Fe (NO3)3·9H2The mol ratio of O is 1:1.9 ~ 1:2.1.
The addition of the monomer thiophene is Ni (NO3)2·6H2O、Fe(NO3)3·9H2The 0.15 ~ 3.00 of O integral molar quantities
Times.
The washing is carried out using absolute ethyl alcohol, secondary water.
It is at 90 ~ 100 DEG C that the drying is, dry 9 ~ 11 h.
2nd, influence of the reaction condition to composite property
（1）Influence of the solvent to composite property
In order to investigate influence of the solvent to material composition, performance etc., we have done following experiment：By 0.5863 g Ni
(NO3)2·6H2O、1.6289 g Fe(NO3)3·9H2O (Ni2+、Fe3+Material amount ratio be 1:2) with 0.5 mL monomer thiophenes
Fen is added separately to 48 mL EtOH, EtOH+H2O（）And H2In O, after stirring and dissolving, it is transferred in ptfe autoclave, in
At 200 DEG C, 10 h are reacted；By being centrifuged, washing, be dried to obtain composite.Fig. 1 is different solvents（EtOH、EtOH+H2O、
H2O）Under the conditions of products therefrom.Be can be seen that as solvent is by EtOH → EtOH+H by the figure2O→H2O, i.e., with H2O amounts
Increase, resulting materials magnetic intensity is with H2The increase of O amounts weakens (gone to check their magnetic with same magnet), final to disappear.
That is, H2O is unfavorable for the generation of magnetic material, therefore, solvent should elect EtOH as.
（2）Influence of the solvent heat temperature to composite property
In order to investigate influence of the solvent heat temperature to material composition, performance etc., we have done following experiment：By 0.5863 g
Ni(NO3)2·6H2O、1.6289 g Fe(NO3)3·9H2O (Ni2+、Fe3+Material amount ratio be 1:2) with 0.5 mL monomers
Thiophene is added in 48 mL EtOH, after stirring and dissolving, is transferred in ptfe autoclave, in the hot temperature of different solvents
（200、180、160℃）It is lower to react 10 h respectively, by being centrifuged, washing, be dried to obtain composite.Fig. 2 is different solvents heat
At a temperature of products therefrom.By Fig. 2 it is recognised that influence of the solvent heat temperature to magnetic property is similar to solvent, i.e., with solvent heat
The reduction of reaction temperature, product magnetic is by strong → weak → nothing.That is low temperature is also unfavorable for the generation of magnetic material.It is a large amount of real
Test and show, solvent heat temperature control is at 180 ~ 220 DEG C（It is preferred that 200 DEG C）, the composite for obtaining has good magnetic property.
（3）Effect of the metal ion to being polymerized
In order to illustrate metal ion Ni2+、Fe3+Effect to monomer thiophene polymeric, we have done tests below：
A. by 0.5863 g Ni (NO3)2·6H2O and 0.5 mL monomers thiophene add 48 mLEtOH, are transferred to after dissolving
In ptfe autoclave, at 200 DEG C, reaction 10 h.By centrifugation, washing, dry, the color of gained solid product
It is green, illustrates that product is NiO, Ni2+The polymerization of monomer thiophene can not be catalyzed；
B. by 1.6289 g Fe (NO3)3·9H2O and 0.5 mL monomer thiophene are added to 48 mLEtOH, turn after dissolving
In entering ptfe autoclave, at 200 DEG C, 10 h of reaction.By centrifugation, washing, dry, the face of gained solid product
Color is in peony, illustrates Fe3+There is catalytic action to the polymerization of monomer thiophene.
Above-mentioned experiment shows, in the preparation of PTh-NF composites, only metal cations Fe3+Polymerization to monomer thiophene
There is chemical bonding with the effect for promoting or be catalyzed, and between inorganic component and organic component PTh（Coordination）Effect.
2nd, the structure and performance of polythiophene-Ni ferrite nano composite material
Below with technologies such as XRD, IR, TEM, VSM by the sample P Th-NF and NF obtained by preparation（Under the same terms,
Gained electrodeless magnetic material when monomer-free thiophene is added）Structure and performance characterized, analyzed.
1st, XRD analysis
Fig. 3 is the XRD of sample P Th-NF and NF prepared by the present invention.From the XRD of sample NF：Removed in the sample
The NiFe of spinel structure2O4Outward, also a small amount of α-Fe2O3Mutually exist；In sample P Th-NF, although have NiFe2O4With
α-Fe2O3, it is important that NiFe2O4The diffraction peak intensity of phase is remarkably reinforced, α-Fe2O3Diffraction peak intensity substantially weakens（Contain
Amount reduces）.As can be seen here, in solvent-thermal method preparation, the presence of monomer thiophene and/or polythiophene PTh not only contributes to sharp crystalline substance
Stone structure NiFe2O4Formation, and be conducive to the raising of its crystallization degree.In addition, there is widthization phenomenon in all diffraction maximums,
Illustrate the small-sized of resulting materials.According to Scherrer formula, according to 2θ=The half-peak breadth of characteristic peak can be calculated at 35.54
NiFe in sample NF and PTh-NF2O4Average grain diameter be respectively 17.5,13.5 nm, i.e. resulting materials for nano-scale.
2nd, IR analyses
Fig. 4 is the IR figures of sample P Th-NF and NF prepared by the present invention.Compare discovery：Except there is inorganic M-O in PTh-NF
The absworption peak of key（590 cm-1）Outward, in 1380 ~ 1580 cm-1Between occur in that multiple stretching vibrations of conjugated bonds on polythiophene ring
Absworption peak；And slightly larger than 3000 cm-1Nearby do not observe polythiophene conjugate ring on=C-H absworption peaks, illustrate PTh and
NiFe2O4Between there is strong interaction, so as to limit its corresponding oscillating movement.I.e. the IR results are demonstrated using STM mono-
Step realizes NiFe2O4, PTh formation and the organic composite of the two, PTh-NF composites are successfully obtained.
3rd, tem analysis
Fig. 5 is the prepared sample NF of the present invention（a, c）And PTh-NF（b、d）The TEM figures of different multiples.Observation finds：Institute
Obtained sample is nano material (NF, PTh-NF<20 nm), but the size of PTh-NF is more uniform；Can be clear from figure a, b
See to Chu, NF nano particles have obvious agglomeration, and PTh-NF nano particles show good dispersive property, i.e.,
Polythiophene PTh can effectively prevent the reunion of magnetic NF nano particles.This is may certify that from the shallower color of PTh-NF nano particles
Material is composite organic-inorganic material, and the two is compound on smaller nanoscale, and this material is properly termed as nano hybridization
Material.That is, in the present invention, without carrying out NiFe2O4Surface modification, you can realize itself and organic polymer PTh's
It is effectively compound, nano composite material is obtained.The HR-TEM (figure c, d) for comparing PTh-NF and NF has found：In composite PTh-NF
NiFe2O4Lattice fringe (figure d in white circle) compared with NF（White circle in figure c）In obvious, i.e. NiFe in PTh-NF2O4
Crystal property better than NF, that is to say, that the presence of polymer P Th improves NiFe2O4The crystallinity of phase, this divides with its XRD
Analysis result is consistent.
4th, magnetic property analysis
Because polythiophene PTh is namagnetic substance, therefore, the magnetic property of composite derives from its inorganic magnetic component
NiFe2O4, its magnetic intensity should be relevant with magnetic component content, that is to say, that with the addition of non-magnetic components PTh, composite wood
The magnetic property of material should weaken, and increasing with its addition, and the magnetic property of composite will further weaken.Fig. 6 is sample
The hysteresis graph of product PTh-NF and NF.Fig. 7 difference PTh additions gained specific saturation magnetization values of PTh-NF and NF.
Can be obtained by Fig. 6,7, gained sample is superparamagnetic material；It is Ni (NO in the addition of monomer thiophene3)2·6H2O、Fe
(NO3)3·9H2In the range of 0.15 ~ 3.00 times of O integral molar quantities, the magnetic property of all composite PTh-NF is superior to single
Inorganic magnetic material NF, and the trend for first increasing, reducing afterwards is presented, it is most strong when PTh additions are about 0.99 times.
Understood with reference to various characterization results, composite PTh-NF excellent magnetic property except with wherein NiFe2O4Crystallinity
Raising, the α-Fe of energy2O3The reduction of phase has outside the Pass, it is often more important that should be relevant with conjugated polymer PTh.In fact, in outer magnetic
Under field action, the electrons in conjugated polymer PTh produce directed movement, thus produce induced field.Therefore composite
Magnetic intensity should be NiFe2O4, the components of PTh bis- collaboration contribution.
In sum, present invention solvent-thermal method, is being not added with any precipitating reagent, catalyst, need not more carry out NiFe2O4Material
The surface modification of material a, step realizes NiFe2O4Generation and effectively compound with PTh, prepare and alternate there is strong interaction
PTh-NF nano composite materials in recombination process, Fe3+There is the effect for promoting or being catalyzed to the polymerization of monomer thiophene, and be polymerized
Thing PTh effectively prevents NiFe simultaneously2O4The reunion of magnetic material, improves NiFe2O4Magnetic property.In composite, NiFe2O4
It is the nanocrystal with spinel structure, and PTh and the synergy between it so that the crystal property and magnetic of composite
Performance is better than single inorganic magnetic material, in electro-catalysis, secondary rechargeable battery material, super capacitor material, gas sensitive etc.
Aspect is widely used.In addition, the present invention has the outstanding advantages such as process is simple, short flow, low cost, environmental protection, have
Beneficial to industrialization.
Brief description of the drawings
Products therefrom under Fig. 1 different solvents.
Products therefrom at the hot temperature of Fig. 2 different solvents.
The XRD of Fig. 3 sample Ps Th-NF and NF.
The IR figures of Fig. 4 sample Ps Th-NF and NF.
Fig. 5 is NF and the TEM figures of PTh-NF (b, d) sample.
Fig. 6 sample Ps Th-NF-1 ~ 5 and the hysteresis graph of NF.
Fig. 7 is the saturation magnetization of sample P Th-NF-1 ~ 5 and NF.
Specific embodiment
Further is made to the preparation of PTh-NF nano composite materials of the present invention and its performance below by specific embodiment
Explanation.
Embodiment 1
By 0.5863 g Ni (NO3)2·6H2O、1.6289 g Fe(NO3)3·9H2O (Ni2+、Fe3+Material amount ratio
It is 1:2) it is added separately in 48 mL EtOH with 0.10 mL thiophene monomers, after stirring and dissolving, is transferred to ptfe autoclave
In, at 200 DEG C, react 10 h.After reaction terminates, after centrifugation, absolute ethyl alcohol, secondary water washing, it is placed in drying baker, in
9 ~ 11 h are dried at 90 ~ 100 DEG C, composite PTh-NF-1 is obtained, its intensity of magnetization is 32.79 emu/g.
Embodiment 2
The addition of thiophene monomer is 0.30 mL, other conditions with embodiment 1, the composite PTh-NF-2 for obtaining, its
The intensity of magnetization is 34.72 emu/g.
Embodiment 3
The addition of thiophene monomer is 0.50 mL, and other conditions are with embodiment 1, the composite PTh-NF-3 for obtaining.Its
The intensity of magnetization is 43.48 emu/g.
Embodiment 4
The addition of thiophene monomer is 1.00 mL, and other conditions are with embodiment 1, the composite PTh-NF-4 for obtaining.Its
The intensity of magnetization is 39.85 emu/g.
Embodiment 5
The addition of thiophene monomer is 1.50 mL, and other conditions are with embodiment 1, the composite PTh-NF-5 for obtaining.Its
The intensity of magnetization is 33.98 emu/g.
Claims (5)
1. the method for solvent hot preparation polythiophene-Ni ferrite nano composite material, be with nine water ferric nitrates, six water nickel nitrates,
Monomer thiophene is raw material, and absolute ethyl alcohol is solvent, is obtained using the step of solvent-thermal method one；Concrete technology step is：By nine water nitric acid
Iron, six water nickel nitrates are dissolved in absolute ethyl alcohol, are added monomer thiophene and are uniformly dispersed；Then it is transferred to ptfe autoclave
In, in 9 ~ 12 h of reaction at 160 ~ 220 DEG C；Reaction is centrifuged after terminating, washs, dries, and obtains final product PTh-NF nano composite materials.
2. the method for solvent hot preparation polythiophene-Ni ferrite nano composite material as claimed in claim 1, it is characterised in that：
Ni (the NO3)2·6H2O and Fe (NO3)3·9H2The mol ratio of O is 1: 2.
3. the method for solvent hot preparation polythiophene-Ni ferrite nano composite material as claimed in claim 1, it is characterised in that：
The addition of the monomer thiophene is Ni (NO3)2·6H2O、Fe(NO3)3·9H20.15 ~ 3.00 times of O integral molar quantities.
4. the method for solvent hot preparation polythiophene-Ni ferrite nano composite material as claimed in claim 1, it is characterised in that：
The washing is carried out using absolute ethyl alcohol, secondary water.
5. the method for solvent hot preparation polythiophene-Ni ferrite nano composite material as claimed in claim 1, it is characterised in that：
The drying is in an oven, in dry 9 ~ 11 h at 90 ~ 100 DEG C.
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