CN102921940B - Iron nano belt and preparation method thereof - Google Patents
Iron nano belt and preparation method thereof Download PDFInfo
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- CN102921940B CN102921940B CN201210353075.9A CN201210353075A CN102921940B CN 102921940 B CN102921940 B CN 102921940B CN 201210353075 A CN201210353075 A CN 201210353075A CN 102921940 B CN102921940 B CN 102921940B
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Abstract
The invention relates to an iron nano belt and a preparation method thereof. The thickness of the iron nano belt is 20 to 40 nanometers, the length is 5 microns to 1 centimeter, and the width is 100 to 500 nanometers. The preparation method for the iron nano belt comprises the following steps of: soaking a copper-iron composite wire into etching liquid for 2 to 20 hours to dissolve copper, fishing the left solid, performing ultrasonic cleaning in ethanol, drying with an infrared lamp, and thus obtaining the iron nano belt, wherein the etching liquid is formed by mixing deionized water and 25 weight percent aqueous ammonia in a volume ratio of 1:9-1:5. The thickness of the iron nano belt provided by the invention is nano-scale, and the length can reach micro-scale and even centimeter-scale, so the iron nano belt has a broad prospect in multiple fields. The preparation method for the iron nano belt has the characteristics of low cost, low energy consumption, simple process, high yield and the like, and can be used for producing the iron nano belts with different lengths in large scale.
Description
Technical field
The present invention relates to a kind of iron nanobelt and preparation method thereof, belong to technical field of nanometer material preparation.
Background technology
Metal nano material, due to the physical and chemical performance of its uniqueness, causes the extensive concern of people, and low-dimension nano material becomes the hot issue of research gradually.Professor Wang Zhonglin of the georgia ,u.s.a Institute of Technology waits Late Cambrian synthesized the conductor oxidate of nanobelt shape structure in the world, is considered to the important breakthrough in nano material synthesis field.At present, the preparation method of nanobelt mainly contains: vacuum evaporation-condensation method, microemulsion technology, template synthesis method, molecular self-assembling method etc.
Fe nano material, owing to possessing excellent electromagnetic performance, is widely used in storage medium, wave-absorbing and camouflage material etc.
Summary of the invention
The object of the present invention is to provide a kind of iron nanobelt, its length can reach micron order even Centimeter Level.
The present invention also aims to the preparation method that above-mentioned iron nanobelt is provided, by the erosion to copper iron composite material, obtain iron nanobelt, there is the features such as cost is low, energy consumption is low, technique is simple, output is large.
For achieving the above object, the invention provides a kind of iron nanobelt, its thickness is about 20-40 nanometer, and length is 5 microns-1 centimetre, and width is 100-500nm.
According to concrete iron nanobelt of the present invention, it is prepared by following steps: copper iron composite material silk material is put into etchant and soak 2-20 hour, dissolve copper, fish for remaining solid, carry out ultrasonic cleaning in ethanol, utilize infrared lamp to dry, obtain described iron nanobelt;
Wherein, described etchant by deionized water and concentration be 25wt.% ammoniacal liquor by 1: 9-1: 5 volume ratio mix.
Present invention also offers the preparation method of above-mentioned iron nanobelt, it comprises the following steps:
Copper iron composite material silk material is put into etchant and soak 2-20 hour, dissolve copper, fish for remaining solid, carry out ultrasonic cleaning in ethanol, utilize infrared lamp to dry, obtain iron nanobelt;
Wherein, etchant by deionized water and concentration be 25wt.% ammoniacal liquor by 1: 9-1: 5 volume ratio mix.
In above-mentioned preparation method, preferably, in copper iron composite material, the mass ratio of copper and iron is 10: 1-6: 1.
In above-mentioned preparation method, preferably, it also comprises the following step preparing copper iron composite material silk material:
Elemental copper that purity is 99.0wt.%-99.9wt.% is chosen and purity is the fe of 99.0wt.%-99.9wt.% by the composition proportion of copper iron composite material;
Elemental copper and fe are put into vacuum higher than 10
-1in the smelting furnace of Pa or inert gas shielding, obtain copper iron composite material 1600 DEG C of meltings, be cast into ingot casting;
Be club-shaped material by ingot casting 500 DEG C of forge hots, the wire drawing process described club-shaped material being carried out to multi-pass obtains described copper iron composite material silk material.
In above-mentioned preparation method, concrete hot candied processing mode can be installed usual manner according to actual needs and be carried out, and preferably, in wire drawing process, carries out 2-3 annealing in process, and the temperature of annealing in process is 500 DEG C, and the time is 5-10 minute.
The thickness of iron nanobelt provided by the present invention is nanoscale, and length can reach micron order, even Centimeter Level, all holds out broad prospects in multiple field.The preparation method of iron nanobelt provided by the invention has the features such as cost is low, energy consumption is low, technique is simple, the nanobelt of the different length that can be mass-produced.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein:
Fig. 1 and Fig. 2 is the SEM photo of iron nanobelt prepared by embodiment 1;
Fig. 3 is the energy spectrum composition analysis result of iron nanobelt prepared by embodiment 1;
Fig. 4 and Fig. 5 is the SEM photo of iron nanobelt prepared by embodiment 2.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and beneficial effect, referring now to Figure of description, following detailed description is carried out to technical scheme of the present invention, but can not be interpreted as to of the present invention can the restriction of practical range.
Embodiment 1
Present embodiments provide a kind of iron nanobelt, it is prepared by following steps:
1, copper iron composite material (content of Fe is 10.7wt%) silk material is prepared
(1) choose by copper iron composite material composition proportion elemental copper that purity is 99.5wt.% and purity is the fe of 99.5wt.%;
(2) above-mentioned elemental copper, fe are put into vacuum higher than 10
-1in the smelting furnace of Pa or inert gas shielding, melting obtains copper iron composite material, is cast into ingot casting;
(3) be club-shaped material by ingot casting 500 DEG C of forge hots, hot candied through multi-pass, in the process of wire drawing, carry out the annealing in process of 500 DEG C, 5 minutes, finally obtain the copper iron composite material silk material that diameter is 0.5mm, 0.2mmm respectively.
2, the copper iron composite material silk material being 0.5mm to diameter carries out erosion and prepares iron nanobelt
The copper iron composite material silk material being 0.5mm diameter is immersed in the etchant mixed by deionized water and ammoniacal liquor (ammonia concn 25wt.%) volume ratio by 1: 9, through 10 hours, Copper substrate all dissolves, and fishes for remaining iron nanobelt, ultrasonic cleaning 1 minute in absolute ethyl alcohol, dry 1 minute under infrared lamp, obtain iron nanobelt, its SEM photo as depicted in figs. 1 and 2, as can be seen from Figure, the sheet of this iron nanobelt is thick is about 40nm, and length can reach 0.6mm.Fig. 3 is the composition analysis result of Fe nanobelt in Fig. 2, and wherein, Fe content is 95.28% (mass fraction), and Cu content is 4.72%.
Embodiment 2
Present embodiments provide a kind of iron nanobelt, it is that the copper iron composite material silk material of diameter 0.2mm by preparing the step 1 of embodiment 1 carries out corroding preparation:
The copper iron composite material silk material being 0.2mm diameter is immersed in the etchant mixed by deionized water and ammoniacal liquor (ammonia concn 25wt.%) volume ratio by 1: 8, through 5 hours, Copper substrate all dissolves, and fishes for remaining iron nanobelt, ultrasonic cleaning 1 minute in absolute ethyl alcohol, dry 1 minute under infrared lamp, obtain iron nanobelt, its SEM photo as shown in Figure 4 and Figure 5, as can be seen from Figure, the thickness of this iron nanobelt is about 25nm, and length can reach 1mm.
Claims (8)
1. an iron nanobelt, its thickness is 20-40 nanometer, and length is 5 microns-1 centimetre, and width is 100-500 nanometer;
Wherein, this iron nanobelt is prepared by following steps: copper iron composite material silk material is put into etchant and soaks 2-20 hour, dissolve copper, fish for remaining solid, carry out ultrasonic cleaning in ethanol, utilize infrared lamp to dry, obtain described iron nanobelt;
The ammoniacal liquor that described etchant is 25wt.% by deionized water and concentration mixes by the volume ratio of 1:9-1:5.
2. iron nanobelt according to claim 1, wherein, in described copper iron composite material, the mass ratio of copper and iron is 10:1-6:1.
3. iron nanobelt according to claim 1, wherein, described copper iron composite material silk material is prepared by following steps:
Elemental copper that purity is 99.0wt.%-99.9wt.% is chosen and purity is the fe of 99.0wt.%-99.9wt.% by the composition proportion of copper iron composite material;
Described elemental copper and fe are put into vacuum higher than 10
-1in the smelting furnace of Pa or inert gas shielding, obtain copper iron composite material 1600 DEG C of meltings, be cast into ingot casting;
Be club-shaped material by ingot casting 500 DEG C of forge hots, the wire drawing process described club-shaped material being carried out to multi-pass obtains described copper iron composite material silk material.
4. iron nanobelt according to claim 3, wherein, carries out 2-3 annealing in process in wire drawing process, and the temperature of annealing in process is 500 DEG C, and the time is 5-10 minute.
5. the preparation method of the iron nanobelt described in any one of claim 1-4, it comprises the following steps:
Copper iron composite material silk material is put into etchant and soaks 2-20 hour, dissolve copper, fish for remaining solid, carry out ultrasonic cleaning in ethanol, utilize infrared lamp to dry, obtain described iron nanobelt;
Wherein, the ammoniacal liquor that described etchant is 25wt.% by deionized water and concentration mixes by the volume ratio of 1:9-1:5.
6. preparation method according to claim 5, wherein, in described copper iron composite material, the mass ratio of copper and iron is 10:1-6:1.
7. the preparation method according to claim 5 or 6, it is further comprising the steps of:
Choose elemental copper that purity is 99.0wt.%-99.9wt.% and purity is the fe of 99.0wt.%-99.9wt.%;
Described elemental copper and fe are put into vacuum higher than 10
-1in the smelting furnace of Pa or inert gas shielding, obtain copper iron composite material 1600 DEG C of meltings, be cast into ingot casting;
Be club-shaped material by ingot casting 500 DEG C of forge hots, the wire drawing process described club-shaped material being carried out to multi-pass obtains described copper iron composite material silk material.
8. preparation method according to claim 7, wherein, carries out 2-3 annealing in process in wire drawing process, and the temperature of annealing in process is 500 DEG C, and the time is 5-10 minute.
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| CN201210353075.9A CN102921940B (en) | 2012-09-20 | 2012-09-20 | Iron nano belt and preparation method thereof |
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| CN201210353075.9A CN102921940B (en) | 2012-09-20 | 2012-09-20 | Iron nano belt and preparation method thereof |
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| CN102921940A CN102921940A (en) | 2013-02-13 |
| CN102921940B true CN102921940B (en) | 2015-01-21 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096052A (en) * | 2006-06-28 | 2008-01-02 | 河北科技大学 | Preparation method of micrometer and sub-micron iron-based metallic fibre |
| CN101225486A (en) * | 2008-01-15 | 2008-07-23 | 上海理工大学 | Copper-based in-situ composite material and preparation method thereof |
| CN101525731A (en) * | 2009-04-22 | 2009-09-09 | 东南大学 | Cu-Fe original-position compound copper base material and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096052A (en) * | 2006-06-28 | 2008-01-02 | 河北科技大学 | Preparation method of micrometer and sub-micron iron-based metallic fibre |
| CN101225486A (en) * | 2008-01-15 | 2008-07-23 | 上海理工大学 | Copper-based in-situ composite material and preparation method thereof |
| CN101525731A (en) * | 2009-04-22 | 2009-09-09 | 东南大学 | Cu-Fe original-position compound copper base material and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 退火对Cu-8wt%Fe原位形变复合材料组织及性能的影响;陆月娇等;《热加工工艺》;20091130(第22期);第96-99页 * |
| 高强度高导电的形变Cu-Fe原位复合材料;葛继平等;《中国有色金属学报》;20040430;第14卷(第04期);第568-573页 * |
| 高铬铁基纤维的热稳定性和磁性;孙世清;《材料工程》;20071130(第11期);第3-6页 * |
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