CN101264936A - Method for preparing alpha-ferroso-ferric oxide nano-tube by non-template process - Google Patents
Method for preparing alpha-ferroso-ferric oxide nano-tube by non-template process Download PDFInfo
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- CN101264936A CN101264936A CNA2008100548275A CN200810054827A CN101264936A CN 101264936 A CN101264936 A CN 101264936A CN A2008100548275 A CNA2008100548275 A CN A2008100548275A CN 200810054827 A CN200810054827 A CN 200810054827A CN 101264936 A CN101264936 A CN 101264936A
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- ferric oxide
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- ferric
- oxide nanotube
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Abstract
A nontemplated method for producing Alpha-ferric oxide nanotubes comprises the steps of collecting 9-50 mmol/L ferric trichloride aqueous solution, adding equivoluminal 0.3-2.5 mmol/L sodium dihydrogen phosphate aqueous solution, stirring, placing into a sealed reaction vessel, sealing, performing constant temperature treatment at 180-270 DEG C for 12-72 hours, taking out of the reaction vessel, air cooling, separating red precipitate in the vessel, water washing for 2-5 times, and oven-drying in the air at 60-80 DEG C to obtain Alpha-ferric oxide nanotubes. The inventive method has the advantages of narrow size distribution of Alpha-ferric oxide nanotube particles, uniform tube diameter, simple production process and operation, good product reproducibility, and applicability to large-scale production.
Description
Technical field
The invention belongs to a kind of preparation method of nanotube, relate in particular to a kind of preparation alpha-ferric oxide (α-Fe
2O
3) method of nanotube.
Technical background
Nano particle makes it all show the new feature that is different from conventional solid and macroscopic particle at aspects such as light, electricity, magnetic, heat, mechanical property, chemical property, bio-physical properties owing to have quantum size effect, small-size effect, surface effects, macro quanta tunnel effect, coulomb obstruction and dielectric confinement effect.The performance of nano material is decided by the microscopic appearance of nanoparticle to a great extent, and the nano particle of therefore synthetic various special appearances has become the indispensable important component part in nano science field.
Ferric oxide is as the transition metal oxide of a kind of cheapness, environmental protection, its nano-structured particles has good weather resisteant, photostabilization, magnetic and ultraviolet ray is had good absorption and shielding effect, can be widely used in aspects such as pigment, electronics, high magnetic recording material, transmitter and catalyzer, application promise in clinical practice also be arranged in fields such as biotechnology, drug release.The ferric oxide nano pipe is because the good mobility that its special magnetic eddy current state and its hollow structure cause makes it in fields such as record magnetic head, nano-catalytic, biosensor, nanosecond medical sciences good prospects for application arranged.Present ferric oxide nano pipe growth mainly is synthetic by means of template, for example porous alumina formwork, carbon nanotube template or the like.The template impurity that not only can induce one in product also can increase the cost of product, and large-scale production also is suitable difficulty, and this has just caused its bottleneck in production application.
Summary of the invention
The purpose of this invention is to provide a kind of non-template legal system simple to operate, pollution-free and that cost is low and be equipped with alpha-ferric oxide nanotube.
The object of the present invention is achieved like this: utilizing the difference of phosphate anion to the adsorptive power of the different crystal faces of ferric oxide, is raw material with the trivalent iron salt, and hydrothermal treatment consists certain hour under suitable temperature obtains alpha-ferric oxide (α-Fe
2O
3) nanotube.
Preparation method of the present invention is as follows:
Get the 9-50mmol/L ferric chloride aqueous solutions, the biphosphate sodium water solution that adds equal-volume 0.3-2.5mmol/L then, after stirring, change closed reactor over to, 12-72h is handled at 180-270 ℃ of constant temperature in the sealing back, take out reactor then, naturally cooling in air is separated red precipitate in the still, washes 2-5 time, 60-80 ℃ of oven dry promptly gets alpha-ferric oxide (α-Fe in the air
2O
3) nanotube.
Aforesaid separation can be used methods such as centrifugation, filtering separation and standing separation.
The present invention compared with prior art has following advantage:
1. gained alpha-ferric oxide (α-Fe
2O
3) nanotube, particle size distribution is narrower, uniform diameter;
2. raw material is cheap and easy to get, and is easy to make, and required equipment is simple and easy;
3. break away from the constraint of template, improved the purity of product, reduced the cost of product;
4. production operation is simple, and the product favorable reproducibility is easy to the expansion scale, is more suitable for the industrial production in reality.
Embodiment
Embodiment 1
Get the 9mmol/L ferric chloride aqueous solutions, the biphosphate sodium water solution that adds equal-volume 0.4mmol/L then after stirring, changes the tetrafluoroethylene reactor over to, put into 200 ℃ of constant temperature ovens after the sealing, handle 18h, take out reactor then, naturally cooling in air, red precipitate is separated with centrifugation method in the still, wash 2 times, 60 ℃ of oven dry in the air, get final product alpha-ferric oxide (α-Fe
2O
3) nanotube.
Embodiment 2
Get the 18mmol/L ferric chloride aqueous solutions, the biphosphate sodium water solution that adds equal-volume 0.9mmol/L then after stirring, changes the tetrafluoroethylene reactor over to, put into 210 ℃ of constant temperature ovens after the sealing, handle 36h, take out reactor then, naturally cooling in air, red precipitate is separated with centrifugation method in the still, wash 3 times, 80 ℃ of oven dry in the air, get final product alpha-ferric oxide (α-Fe
2O
3) nanotube.
Embodiment 3
Get the 35mmol/L ferric chloride aqueous solutions, the biphosphate sodium water solution that adds equal-volume 1.6mmol/L then after stirring, changes the tetrafluoroethylene reactor over to, put into 240 ℃ of constant temperature ovens after the sealing, handle 45h, take out reactor then, naturally cooling in air, red precipitate is separated with centrifugation method in the still, wash 4 times, 70 ℃ of oven dry in the air, get final product alpha-ferric oxide (α-Fe
2O
3) nanotube.
Embodiment 4
Get the 45mmol/L ferric chloride aqueous solutions, the biphosphate sodium water solution that adds equal-volume 1.8mmol/L then after stirring, changes the tetrafluoroethylene reactor over to, put into 260 ℃ of constant temperature ovens after the sealing, handle 18h, take out reactor then, naturally cooling in air, red precipitate is separated with centrifugation method in the still, wash 5 times, 70 ℃ of oven dry in the air, get final product alpha-ferric oxide (α-Fe
2O
3) nanotube.
Claims (2)
1, a kind of non-template legal system is equipped with the method for alpha-ferric oxide nanotube, it is characterized in that comprising step:
Get the 9-50mmol/L ferric chloride aqueous solutions, the biphosphate sodium water solution that adds equal-volume 0.3-2.5mmol/L then, after stirring, change closed reactor over to, 12-72 h is handled at 180-270 ℃ of constant temperature in the sealing back, take out reactor then, naturally cooling in air is separated red precipitate in the still, washes 2-5 time, 60-80 ℃ of oven dry in the air promptly gets alpha-ferric oxide nanotube.
2, a kind of non-template legal system as claimed in claim 1 is equipped with the method for alpha-ferric oxide nanotube, it is characterized in that described separation use centrifugation, filtering separation or standing separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100548275A CN101264936A (en) | 2008-04-15 | 2008-04-15 | Method for preparing alpha-ferroso-ferric oxide nano-tube by non-template process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100548275A CN101264936A (en) | 2008-04-15 | 2008-04-15 | Method for preparing alpha-ferroso-ferric oxide nano-tube by non-template process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101264936A true CN101264936A (en) | 2008-09-17 |
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| CNA2008100548275A Pending CN101264936A (en) | 2008-04-15 | 2008-04-15 | Method for preparing alpha-ferroso-ferric oxide nano-tube by non-template process |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544457A (en) * | 2012-02-17 | 2012-07-04 | 合肥工业大学 | Method for preparing graphene oxide-iron sesquioxide nanotube composite material by using in-situ method |
| CN102593454A (en) * | 2012-03-02 | 2012-07-18 | 合肥工业大学 | Preparation method for headspace iron trioxide and polypyrrole composite electrode material |
| CN103013441A (en) * | 2013-01-10 | 2013-04-03 | 贵州大学 | Method for growing low helical carbon nanotube composite microwave absorbing material by in-situ catalysis |
| CN103400980A (en) * | 2013-07-30 | 2013-11-20 | 浙江大学 | Iron sesquioxide/nickel oxide core-shell nanorod array film as well as preparation method and application thereof |
| CN103754956A (en) * | 2013-12-31 | 2014-04-30 | 太原理工大学 | Hydro-thermal synthesis method for shape-controllable nano iron oxide |
| CN104815658A (en) * | 2015-04-09 | 2015-08-05 | 太原理工大学 | Tetrahexahedron iron oxide nanocrystalline catalyst, preparation method and application thereof |
| CN105931852A (en) * | 2016-04-21 | 2016-09-07 | 三峡大学 | Plush-surface ferric oxide nanotube array material and preparation method thereof |
| CN106745307A (en) * | 2016-12-13 | 2017-05-31 | 太原理工大学 | A kind of superfine iron oxide nano particle and its again controllable method for preparing of package assembly |
-
2008
- 2008-04-15 CN CNA2008100548275A patent/CN101264936A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544457B (en) * | 2012-02-17 | 2014-12-03 | 合肥工业大学 | Method for preparing graphene oxide-iron sesquioxide nanotube composite material by using in-situ method |
| CN102544457A (en) * | 2012-02-17 | 2012-07-04 | 合肥工业大学 | Method for preparing graphene oxide-iron sesquioxide nanotube composite material by using in-situ method |
| CN102593454A (en) * | 2012-03-02 | 2012-07-18 | 合肥工业大学 | Preparation method for headspace iron trioxide and polypyrrole composite electrode material |
| CN102593454B (en) * | 2012-03-02 | 2014-12-03 | 合肥工业大学 | Preparation method for headspace iron trioxide and polypyrrole composite electrode material |
| CN103013441A (en) * | 2013-01-10 | 2013-04-03 | 贵州大学 | Method for growing low helical carbon nanotube composite microwave absorbing material by in-situ catalysis |
| CN103013441B (en) * | 2013-01-10 | 2014-03-19 | 贵州大学 | Method for growing low helical carbon nanotube composite microwave absorbing material by in-situ catalysis |
| CN103400980A (en) * | 2013-07-30 | 2013-11-20 | 浙江大学 | Iron sesquioxide/nickel oxide core-shell nanorod array film as well as preparation method and application thereof |
| CN103754956A (en) * | 2013-12-31 | 2014-04-30 | 太原理工大学 | Hydro-thermal synthesis method for shape-controllable nano iron oxide |
| CN103754956B (en) * | 2013-12-31 | 2015-03-25 | 太原理工大学 | Hydro-thermal synthesis method for shape-controllable nano iron oxide |
| CN104815658A (en) * | 2015-04-09 | 2015-08-05 | 太原理工大学 | Tetrahexahedron iron oxide nanocrystalline catalyst, preparation method and application thereof |
| CN104815658B (en) * | 2015-04-09 | 2017-04-12 | 太原理工大学 | Tetrahexahedron iron oxide nanocrystalline catalyst, preparation method and application thereof |
| CN105931852A (en) * | 2016-04-21 | 2016-09-07 | 三峡大学 | Plush-surface ferric oxide nanotube array material and preparation method thereof |
| CN106745307A (en) * | 2016-12-13 | 2017-05-31 | 太原理工大学 | A kind of superfine iron oxide nano particle and its again controllable method for preparing of package assembly |
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Open date: 20080917 |