CN108069460A - A kind of preparation method of rodlike stannic oxide/Barium ferrite composite material - Google Patents
A kind of preparation method of rodlike stannic oxide/Barium ferrite composite material Download PDFInfo
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Abstract
A kind of preparation method of rodlike stannic oxide/Barium ferrite composite material, stannic chloride pentahydrate and sodium hydroxide are dissolved in deionized water, solution A is obtained after stirring and dissolving；Sheet-like barium ferrite powder is added in into solution A, after ultrasonic disperse, add in surfactant, stir evenly, be put into homogeneous reactor, at 180~200 DEG C react 12~for 24 hours, obtain rodlike stannic oxide/Barium ferrite composite material.Preparation process of the present invention is simple, technique is controllable, it is at low cost, obtained rodlike stannic oxide/barium ferrite binary composite has both the high-curie temperature of (001) oriented growth barium ferrite, high-coercive force, chemical stabilization and it is corrosion-resistant the advantages that and stannic oxide carrier mobility it is high the features such as, in magnetic recording media, the various fields such as sensor and microwave absorbing material have application.
Description
Technical field
The invention belongs to materials science fields, are related to a kind of preparation side of rodlike stannic oxide/Barium ferrite composite material
Method.
Background technology
Due to having higher magnetocrystalline anisotropy and saturation magnetization equivalent field, ferrite can usually be inhaled ripple by people
Material effectively improves its absorbing property, and its less expensive by Method of element substitution, and tellurian reserves are extremely
It is abundant, it has also become a kind of one of important absorbing material.Since 20 middle of century start, ferrospinel has obtained quickly
Develop and achieve considerable scientific achievement, but there are considerable restraints for application of the spinel type ferrite in high-frequency range
Reason；So at present in the range of high frequency area research most study magnetic ferrites materials or magneto-plumbite type ferrite
Material.What magneto-plumbite type ferrite most represented surely belongs to study M type barium ferrites.Barium ferrite raw material is cheap, chemical stability
It is excellent, oxidation resistent susceptibility is excellent, have higher coercivity, magnetic energy product, monadic magnetocrystalline anisotropy and the moderate intensity of magnetization,
But the shortcomings of density is big, hot properties is poor limits its application.Single barium ferrite is difficult to meet wanting for " light, thin, wide, strong "
Ask, but it is with larger relative permeability and smaller dielectric constant, usually with other materials are compound improves its wave absorbtion
Energy.Stannic oxide is a kind of broad stopband n-type metal oxide semiconductor, is a kind of very important semiconductor functional material, tool
There are preferable high-frequency microwave absorbent properties, can effectively widen the suction wave frequency section of composite material.
It is old et al. that oxide coated by zinc M type barium is prepared for by coprecipitation and self-propagating high-temperature synthesis in existing report
Ferrite composite material；Korea Spro et al. prepares graininess ferroso-ferric oxide/Barium ferrite composite material by hydro-thermal method.By metal
Oxide and barium ferrite synthetic composite material are by extensive application and preparation, and at present to preparing rodlike metal oxide/barium iron
The method of oxysome is still without being reported.
The content of the invention
The object of the present invention is to provide a kind of preparation method of rodlike stannic oxide/Barium ferrite composite material, this method
Rodlike stannic oxide/Barium ferrite composite material is prepared by molten-salt growth method and hydro-thermal method, composite material prepared by the method disperses
Property is good, and preparation method is simple, can generate on a large scale.
For achieving the above object, the present invention adopts the following technical scheme that：
A kind of preparation method of rodlike stannic oxide/Barium ferrite composite material, comprises the following steps：
1) stannic chloride pentahydrate and sodium hydroxide are dissolved in deionized water, solution A is obtained after stirring and dissolving；
2) sheet-like barium ferrite powder is added in into solution A, after ultrasonic disperse, adds in surfactant, stir evenly,
Obtain B solution；
3) B solution is poured into the water heating kettle of polytetrafluoroethylene (PTFE), is put into homogeneous reactor, reacted at 180~200 DEG C
12~for 24 hours, obtain rodlike stannic oxide/Barium ferrite composite material.
Further improve of the invention is that stannic chloride pentahydrate and sodium hydroxide are according to Sn4+With OH-Molar ratio is 1：(9
~12) amount is dissolved in deionized water.
Further improve of the invention is that the ratio of stannic chloride pentahydrate and deionized water is (1~1.5) mmol：10mL.
Further improve of the invention is that ultrasonic power 600W, the time is 5~10min.
Further improve of the invention is that surfactant is lauryl sodium sulfate.
Further improve of the invention is that the rotating speed of stirring is 450~550r/min in step 2), and mixing time is
30min。
Further improve of the invention is that the molar ratio of sheet-like barium ferrite powder and surfactant is (2~5)：
1。
Further improve of the invention is that the molar ratio of sheet-like barium ferrite powder and stannic chloride pentahydrate is 1：10.
Further improve of the invention is that sheet-like barium ferrite powder is made by molten-salt growth method.
Compared with prior art, the device have the advantages that：The present invention prepares rodlike titanium dioxide by hydro-thermal method
Tin/Barium ferrite composite material, it is microcosmic on, SnO2Nanometer rods are orderly and are closely arranged in BaFe12O19Flaky powder surface.Greatly
The SnO of amount2Nanometer rods are coated on the surface of barium ferrite, cavernous of one kind are obtained, compared to the bag of graininess and sheet
It covers, is more advantageous to the absorption of electromagnetic wave.Rodlike stannic oxide/Barium ferrite composite material that the present invention obtains has both (001) and takes
To growth barium ferrite high-curie temperature, high-coercive force, chemical stabilization and it is corrosion-resistant the advantages that and stannic oxide carrier
The features such as mobility is high, in magnetic recording media, the various fields such as sensor and microwave absorbing material have application.The present invention uses
Equipment it is simple, process stabilizing can operate continuously, and production efficiency is high, it can be achieved that increasingly automated, reduces cost, material is equal
Even property is good, and preparation method is simple.
Further, in the present invention molten-salt growth method is used out to prepare sheet-like barium ferrite powder, is conducive to BaFe12O19It is brilliant
Grain increases and is arranged according to (001) crystal plane orientation.BaFe in rodlike stannic oxide/Barium ferrite composite material12O19Quality
Percentage is 5%~15%, and absorbing property is excellent.
Description of the drawings
Fig. 1 is BaFe prepared by 1 molten-salt growth method of the embodiment of the present invention12O19The XRD diagram of powder.
Fig. 2 is SnO prepared by 1 hydro-thermal method of the embodiment of the present invention2/BaFe12O19The XRD diagram of composite material.
Fig. 3 is BaFe prepared by 1 molten-salt growth method of the embodiment of the present invention12O19The SEM figures of powder.
Fig. 4 is SnO prepared by 1 hydro-thermal method of the embodiment of the present invention2/BaFe12O19The SEM figures of composite material.
Fig. 5 is SnO prepared by 1 hydro-thermal method of the embodiment of the present invention2/BaFe12O19The high magnification SEM figures of composite material.
Fig. 6 is the SnO that comparative example 1 of the present invention changes hydro-thermal method preparation after surfactant addition2/BaFe12O19It is compound
The SEM figures of material.
Fig. 7 is the SnO that comparative example 1 of the present invention changes hydro-thermal method preparation after surfactant addition2/BaFe12O19It is compound
The low range SEM figures of material.
Fig. 8 is the SnO that comparative example 1 of the present invention changes hydro-thermal method preparation after surfactant addition2/BaFe12O19It is compound
The high magnification SEM figures of material.
Specific embodiment
By specific embodiment, the present invention is described in detail below in conjunction with the accompanying drawings.
Referring to 106696410 A of CN, specific preparation process is as follows for the preparation of sheet-like barium ferrite powder in the present invention：
1) according to chemical general formula BaFe12O19In mol ratio, by BaCO3With Fe2O3Mixing is led to after then adding in fused salt
It is uniform to cross ball milling mixing, then dries, cross 60 mesh sieves, obtain mixed powder A1；
2) by the obtained mixed powder A of step 1)1BaFe is obtained after calcining12O19The precursor B of powder1；
3) according to chemical general formula BaFe12O19In mol ratio, by Fe2O3And BaCl2·2H2O is mixed, and then adds in step
The rapid BaFe 2) obtained12O19The precursor B of powder1And fused salt, ball milling mixing is uniform, and (fused salt is BaCl2·2H2O,
BaFe12O19The precursor B of powder1Template action is equivalent to, is added to BaCl2·2H2O and Fe2O3In common mixing and ball milling)
To mixed slurry, 60 mesh sieves are crossed after then mixed slurry is dried, obtain mixed powder C1, then by mixed powder C1Calcining, obtains
There is the BaFe of orientation on (001) direction12O19Flaky powder, i.e. sheet-like barium ferrite powder.
Wherein, BaCO in step 1)3With Fe2O3Gross mass and fused salt mass ratio be 1：(1~2)；
Fused salt is NaCl in step 1).
The temperature of calcining is 1050~1150 DEG C in step 2), and the time is 2~5h.
BaCl in step 3)2·2H2O and Fe2O3Mass ratio be (2~3)：1.(BaCl here2·2H2The amount of O includes logical
Cross chemical general formula BaFe12O19Outside the amount of the mol ratio calculated, also including fused salt BaCl2·2H2O is exactly mixed powder
Middle BaCl2·2H2The amount of O wholes)
The temperature of calcining is 1050~1200 DEG C in step 3), and the time is 5~8h.
Embodiment 1
A kind of rodlike stannic oxide/Barium ferrite composite material, the chemical expression of the composite wave-suction material is SnO2/
BaFe12O19, comprise the following steps：
(1) BaFe on (001) direction with orientation is prepared by molten-salt growth method12O19Flaky powder.According to chemical general formula
BaFe12O19In mol ratio, accurately weigh BaCO respectively with electronic balance3And Fe2O3, NaCl is added in after mixing, is placed on
In the ball grinder of 200mL, abundant ball milling 4h is uniformly mixed, and then mixed slurry is placed in electric drying oven with forced convection dry.
Wherein BaCO3、Fe2O3Gross mass and NaCl mass ratio be 1：1, the mass ratio of material, ball, water used in ball milling is 1：2：1,
The rotating speed of ball mill is 400r/min, in 60 DEG C of dry 8h in electric drying oven with forced convection, crosses 60 mesh sieves after dry, is mixed
Powder A1。
(2) first by the obtained mixed powder A of step (1)1It is placed in high temperature Muffle furnace in 1150 DEG C of pre-burning 2h, it will
Obtained pre-burning product is washed at 80 DEG C with ultra-pure water, until NaCl is washed totally, obtains BaFe12O19Before powder
Drive body B1。
(3) according to chemical general formula BaFe12O19In mol ratio, accurately weighed with electronic balance and by Fe2O3With
BaCl2·2H2O is mixed, and then adds in the BaFe that step 2 obtains12O19Precursor B1And fused salt, ball milling 4h are uniformly mixed, so
Mixed slurry is placed in electric drying oven with forced convection afterwards and is dried in 80 DEG C of dry 8h, 60 mesh sieves is crossed after dry, obtains mixed powder
Body C1, by mixed powder C1It is placed in high temperature Muffle furnace in 1050 DEG C of pre-burning 8h, obtains that there is orientation on (001) direction
BaFe12O19Flaky powder, i.e. sheet-like barium ferrite powder.(wherein, Fe2O3With BaCl2·2H2The ratio of O gross masses is 1：1, it melts
Salt is BaCl2·2H2O。BaFe12O19The precursor B of powder1Quality be BaCl2·2H2O、Fe2O3, fused salt and BaFe12O19
The precursor B of powder1The 5% of gross mass)；
(4) Sn is pressed4+With OH-Molar ratio is 1：10, stannic chloride pentahydrate and sodium hydroxide are dissolved in 35mL deionized waters,
Solution A is obtained after stirring and dissolving；Stannic chloride pentahydrate and the ratio of deionized water are 1mmol：10mL.
(5) 50mg sheet-like barium ferrite powders are added in solution A, ultrasonic disperse is carried out using the ultrasonic machine of 600W
After 10min, under 450r/min rotating speeds, lauryl sodium sulfate is added in after stirring half an hour, stirs to get B solution；Sheet barium
The molar ratio of ferrite powder and lauryl sodium sulfate is 5：1；Mole of sheet-like barium ferrite powder and stannic chloride pentahydrate
Than for 1：10；
(6) B solution is poured into the water heating kettle of polytetrafluoroethylene (PTFE) and sealed, packing ratio is controlled in 60%, is put into homogeneous
In reactor, reacted for 24 hours at 200 DEG C.
(7) treat after reaction, distinguish centrifuge washing 3 times through deionized water and absolute ethyl alcohol, be put into 60 DEG C of dryings of baking oven
6h obtains rodlike stannic oxide/Barium ferrite composite material.
The BaFe prepared from Fig. 112O19It can be seen that generated without dephasign, and the oriented growth on (001) direction.
From Fig. 2 it is observed that the rodlike SnO prepared2/BaFe12O19There was only BaFe in composite granule12O19And SnO2Spread out
Peak is penetrated, is generated without dephasign；In addition, BaFe12O19Diffraction peak intensity substantially reduce, illustrate SnO2Tightly it is coated on
BaFe12O19On.
From figure 3, it can be seen that the BaFe prepared12O19Crystal grain is hexangle type sheet, and particle surface is smooth, and the length of side is about 30 μ
M, between thickness is 2~7 μm.
From Fig. 4 and Fig. 5 it is observed that BaFe12O19Surface is by SnO2Uniformly package, in cellular, and in BaFe12O19
The SnO that outer nothing is individually scattered2Particle.
Embodiment 2
A kind of rodlike stannic oxide/Barium ferrite composite material, the chemical expression of the composite wave-suction material is SnO2/
BaFe12O19, comprise the following steps：
(1) BaFe on (001) direction with orientation is prepared by molten-salt growth method12O19Flaky powder.According to chemical general formula
BaFe12O19In mol ratio, accurately weigh BaCO respectively with electronic balance3And Fe2O3, NaCl is added in after mixing, is placed on
In the ball grinder of 200mL, abundant ball milling 4h is uniformly mixed, and then mixed slurry is placed in electric drying oven with forced convection dry.
Wherein BaCO3、Fe2O3Gross mass and NaCl mass ratio be 1：2, the mass ratio of material, ball, water used in ball milling is 1：2：1,
The rotating speed of ball mill is 450r/min, in 60 DEG C of dry 8h in electric drying oven with forced convection, crosses 60 mesh sieves after dry, is mixed
Powder A1。
(2) first by the obtained mixed powder A of step 11It is placed in high temperature Muffle furnace in 1100 DEG C of pre-burning 4h, will
The pre-burning product arrived is washed at 80 DEG C with ultra-pure water, until NaCl is washed totally, obtains BaFe12O19The forerunner of powder
Body B1。
(3) according to chemical general formula BaFe12O19In mol ratio, accurately weighed with electronic balance and by Fe2O3With
BaCl2·2H2O is mixed, and then adds in the BaFe that step 2 obtains12O19Precursor B1And fused salt, ball milling 4h are uniformly mixed, so
Mixed slurry is placed in electric drying oven with forced convection afterwards and is dried in 80 DEG C of dry 8h, 60 mesh sieves is crossed after dry, obtains mixed powder
Body C1, by mixed powder C1It is placed in high temperature Muffle furnace in 1100 DEG C of pre-burning 6h, obtains that there is orientation on (001) direction
BaFe12O19Flaky powder.(wherein, Fe2O3With BaCl2·2H2The ratio of O gross masses is 1：2, fused salt BaCl2·2H2O。
BaFe12O19The precursor B of powder1Quality be BaCl2·2H2O、Fe2O3, fused salt and BaFe12O19The precursor B of powder1Always
The 5% of quality)；
(4) Sn is pressed4+With OH-Molar ratio is 1：9, stannic chloride pentahydrate and sodium hydroxide are dissolved in 30mL deionized waters,
Solution A is obtained after stirring and dissolving；Stannic chloride pentahydrate and the ratio of deionized water are 1.5mmol：10mL；
(5) 50mg sheet-like barium ferrite powders are added in solution A, ultrasonic disperse is carried out using the ultrasonic machine of 600W
After 10min, under 450r/min rotating speeds, the lauryl sodium sulfate added in after half an hour is stirred, stirs to get B solution；Sheet
The molar ratio of barium ferrite powder and lauryl sodium sulfate is 2：1；Sheet-like barium ferrite powder and stannic chloride pentahydrate rub
You are than being 1:10；
(6) B solution is poured into the water heating kettle of polytetrafluoroethylene (PTFE) and sealed, packing ratio is controlled in 60%, is put into homogeneous
In reactor, reacted for 24 hours at 180 DEG C.
(7) treat after reaction, distinguish centrifuge washing 3 times through deionized water and absolute ethyl alcohol, be put into 60 DEG C of dryings of baking oven
6h obtains rodlike stannic oxide/Barium ferrite composite material.
Rodlike stannic oxide/the Barium ferrite composite material prepared is proved after tested, is had in the range of 2-18GHz excellent
Different absorbing property.
Embodiment 3
A kind of rodlike stannic oxide/Barium ferrite composite material, the chemical expression of the composite wave-suction material is SnO2/
BaFe12O19, comprise the following steps：
(1) BaFe on (001) direction with orientation is prepared by molten-salt growth method12O19Flaky powder.According to chemical general formula
BaFe12O19In mol ratio, accurately weigh BaCO respectively with electronic balance3And Fe2O3, NaCl is added in after mixing, is placed on
In the ball grinder of 200mL, abundant ball milling 4h is uniformly mixed, and then mixed slurry is placed in electric drying oven with forced convection dry.
Wherein BaCO3、Fe2O3Gross mass and NaCl mass ratio be 1：2, the mass ratio of material, ball, water used in ball milling is 1:2:1,
The rotating speed of ball mill is 450r/min, in 60 DEG C of dry 8h in electric drying oven with forced convection, crosses 60 mesh sieves after dry, is mixed
Powder A1。
(2) first by the obtained mixed powder A of step 11It is placed in high temperature Muffle furnace in 1050 DEG C of pre-burning 5h, will
The pre-burning product arrived is washed at 80 DEG C with ultra-pure water, until NaCl is washed totally, obtains BaFe12O19The forerunner of powder
Body B1。
(3) according to chemical general formula BaFe12O19In mol ratio, accurately weighed with electronic balance and by Fe2O3With
BaCl2·2H2O is mixed, and then adds in the BaFe that step 2 obtains12O19Precursor B1And fused salt, ball milling 4h are uniformly mixed, so
Mixed slurry is placed in electric drying oven with forced convection afterwards and is dried in 80 DEG C of dry 8h, 60 mesh sieves is crossed after dry, obtains mixed powder
Body C1, by mixed powder C1It is placed in high temperature Muffle furnace in 1200 DEG C of pre-burning 5h, obtains that there is orientation on (001) direction
BaFe12O19Flaky powder.(wherein, Fe2O3With BaCl2·2H2The ratio of O gross masses is 1:1, fused salt BaCl2·2H2O。
BaFe12O19The precursor B of powder1Quality be BaCl2·2H2O、Fe2O3, fused salt and BaFe12O19The precursor B of powder1Always
The 5% of quality)；
(4) Sn is pressed4+With OH-Molar ratio is 1：11, stannic chloride pentahydrate and sodium hydroxide are dissolved in 35mL deionized waters,
Solution A is obtained after stirring and dissolving；Stannic chloride pentahydrate and the ratio of deionized water are 1mmol：10mL；
(5) 50mg sheet-like barium ferrite powders are added in solution A, after ultrasonic disperse 10min, using the ultrasonic machine of 600W
After carrying out ultrasonic disperse 5min, under 500r/min rotating speeds, the lauryl sodium sulfate added in after half an hour is stirred, is stirred to get
B solution；The molar ratio of sheet-like barium ferrite powder and lauryl sodium sulfate is 3：1；Sheet-like barium ferrite powder and five water four
The molar ratio of stannic chloride is 1:10；
(6) B solution is poured into the water heating kettle of polytetrafluoroethylene (PTFE) and sealed, packing ratio is controlled in 60%, is put into homogeneous
In reactor, 20h is reacted at 190 DEG C.
(7) treat after reaction, distinguish centrifuge washing 3 times through deionized water and absolute ethyl alcohol, be put into 60 DEG C of dryings of baking oven
6h obtains rodlike stannic oxide/Barium ferrite composite material.
Rodlike stannic oxide/the Barium ferrite composite material prepared is proved after tested, is had in the range of 2-18GHz excellent
Different absorbing property.
Embodiment 4
A kind of rodlike stannic oxide/Barium ferrite composite material, the chemical expression of the composite wave-suction material is SnO2/
BaFe12O19, comprise the following steps：
(1) BaFe on (001) direction with orientation is prepared by molten-salt growth method12O19Flaky powder.According to chemical general formula
BaFe12O19In mol ratio, accurately weigh BaCO respectively with electronic balance3And Fe2O3, NaCl is added in after mixing, is placed on
In the ball grinder of 200mL, abundant ball milling 4h is uniformly mixed, and then mixed slurry is placed in electric drying oven with forced convection dry.
Wherein BaCO3、Fe2O3Gross mass and NaCl mass ratio be 1:2, the mass ratio of material, ball, water used in ball milling is 1:2:1,
The rotating speed of ball mill is 500r/min, in 60 DEG C of dry 8h in electric drying oven with forced convection, crosses 60 mesh sieves after dry, is mixed
Powder A1。
(2) first by the obtained mixed powder A of step 11It is placed in high temperature Muffle furnace in 1050 DEG C of pre-burning 3h, will
The pre-burning product arrived is washed at 80 DEG C with ultra-pure water, until NaCl is washed totally, obtains BaFe12O19The forerunner of powder
Body B1。
(3) according to chemical general formula BaFe12O19In mol ratio, accurately weighed with electronic balance and by Fe2O3With
BaCl2·2H2O is mixed, and then adds in the BaFe that step 2 obtains12O19Precursor B1And fused salt, ball milling 4h are uniformly mixed, so
Mixed slurry is placed in electric drying oven with forced convection afterwards and is dried in 80 DEG C of dry 8h, 60 mesh sieves is crossed after dry, obtains mixed powder
Body C1, by mixed powder C1It is placed in high temperature Muffle furnace in 1150 DEG C of pre-burning 5h, obtains that there is orientation on (001) direction
BaFe12O19Flaky powder.(wherein, Fe2O3With BaCl2·2H2The ratio of O gross masses is 1:3, fused salt BaCl2·2H2O。
BaFe12O19The precursor B of powder1Quality be BaCl2·2H2O、Fe2O3, fused salt and BaFe12O19The precursor B of powder1Always
The 5% of quality)；
(4) Sn is pressed4+With OH-Molar ratio is 1：12, stannic chloride pentahydrate and sodium hydroxide are dissolved in 35mL deionized waters,
Solution A is obtained after stirring and dissolving；Stannic chloride pentahydrate and the ratio of deionized water are 1mmol：10mL；
(5) 50mg sheet-like barium ferrite powders are added in solution A, after ultrasonic disperse 10min, using the ultrasonic machine of 600W
After carrying out ultrasonic disperse 5min, under 550r/min rotating speeds, lauryl sodium sulfate is added in after stirring half an hour, stirs to get B
Solution；The molar ratio of sheet-like barium ferrite powder and lauryl sodium sulfate is 2：1；Sheet-like barium ferrite powder and five water tetrachloros
The molar ratio for changing tin is 1:10；
(6) B solution is poured into the water heating kettle of polytetrafluoroethylene (PTFE) and sealed, packing ratio is controlled in 60%, is put into homogeneous
In reactor, 12h is reacted at 200 DEG C.
(7) treat after reaction, distinguish centrifuge washing 3 times through deionized water and absolute ethyl alcohol, be put into 60 DEG C of dryings of baking oven
6h obtains rodlike stannic oxide/Barium ferrite composite material.
Rodlike stannic oxide/the Barium ferrite composite material prepared is proved after tested, is had in the range of 2-18GHz excellent
Different absorbing property.
Comparative example 1
It is with embodiment difference, in step (5), the molar ratio of sheet-like barium ferrite powder and surfactant is 10：
1；Other conditions are same as Example 1.
From fig. 6, it can be seen that the SnO prepared2/BaFe12O19There was only BaFe in composite granule12O19And SnO2Diffraction maximum,
There is no dephasign generation；Compared to rodlike SnO2/BaFe12O19Diffraction peak intensity it is smaller.
As can be seen that barium ferrite surface occurs without rodlike stannic oxide from Fig. 7 and Fig. 8, but irregular shape
Nano particle.
Claims (9)
1. a kind of preparation method of rodlike stannic oxide/Barium ferrite composite material, which is characterized in that comprise the following steps：
1) stannic chloride pentahydrate and sodium hydroxide are dissolved in deionized water, solution A is obtained after stirring and dissolving；
2) sheet-like barium ferrite powder is added in into solution A, after ultrasonic disperse, adds in surfactant, stir evenly, obtain
B solution；
3) B solution is poured into the water heating kettle of polytetrafluoroethylene (PTFE), is put into homogeneous reactor, at 180~200 DEG C react 12~
For 24 hours, rodlike stannic oxide/Barium ferrite composite material is obtained.
2. a kind of preparation method of rodlike stannic oxide/Barium ferrite composite material according to claim 1, feature exist
In stannic chloride pentahydrate and sodium hydroxide are according to Sn4+With OH-Molar ratio is 1：The amount of (9~12) is dissolved in deionized water.
3. a kind of preparation method of rodlike stannic oxide/Barium ferrite composite material according to claim 2, feature exist
In the ratio of stannic chloride pentahydrate and deionized water is (1~1.5) mmol：10mL.
4. a kind of preparation method of rodlike stannic oxide/Barium ferrite composite material according to claim 1, feature exist
In ultrasonic power 600W, the time is 5~10min.
5. a kind of preparation method of rodlike stannic oxide/Barium ferrite composite material according to claim 1, feature exist
In surfactant is lauryl sodium sulfate.
6. a kind of preparation method of rodlike stannic oxide/Barium ferrite composite material according to claim 1, feature exist
In the rotating speed of stirring is 450~550r/min, mixing time 30min in step 2).
7. a kind of preparation method of rodlike stannic oxide/Barium ferrite composite material according to claim 1, feature exist
In the molar ratio of sheet-like barium ferrite powder and surfactant is (2~5)：1.
8. a kind of preparation method of rodlike stannic oxide/Barium ferrite composite material according to claim 1, feature exist
In the molar ratio of sheet-like barium ferrite powder and stannic chloride pentahydrate is 1：10.
9. a kind of preparation method of rodlike stannic oxide/Barium ferrite composite material according to claim 1, feature exist
In sheet-like barium ferrite powder is made by molten-salt growth method.
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| CN105883906A (en) * | 2016-04-11 | 2016-08-24 | 同济大学 | Nano stannic oxide-graphene composite as well as preparation method and application thereof |
| CN106587167A (en) * | 2016-12-15 | 2017-04-26 | 陕西科技大学 | Preparation method of barium ferrite-ferroferric oxide composite wave-absorbing material |
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| CN105883906A (en) * | 2016-04-11 | 2016-08-24 | 同济大学 | Nano stannic oxide-graphene composite as well as preparation method and application thereof |
| CN106587167A (en) * | 2016-12-15 | 2017-04-26 | 陕西科技大学 | Preparation method of barium ferrite-ferroferric oxide composite wave-absorbing material |
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| JING ZHANG ET AL.: "Electromagnetic properties of BaZn2Fe16O27/antimony-doped tin oxide composite absorbing materials by co-precipitation method", 《RARE METALS》 * |
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