CN106495202A - Rare earth metal hydroxide and oxide porous tunnel nanotube and preparation method - Google Patents
Rare earth metal hydroxide and oxide porous tunnel nanotube and preparation method Download PDFInfo
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- CN106495202A CN106495202A CN201610996851.5A CN201610996851A CN106495202A CN 106495202 A CN106495202 A CN 106495202A CN 201610996851 A CN201610996851 A CN 201610996851A CN 106495202 A CN106495202 A CN 106495202A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
- C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
- C01P2004/13—Nanotubes
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/90—Other properties not specified above
Abstract
The present invention provides a kind of rare earth metal hydroxide and oxide porous tunnel nanotube and preparation method thereof, including step：Cetyl trimethylammonium bromide and deionized water are added and is well mixed in reaction vessel, obtain the first mixed liquor；Rare earth soluble-salt is added in first mixed liquor, the second mixed liquor after stirring, is obtained；Precipitating reagent is added in second mixed liquor, insulation a period of time after stirring, washing are collected after drying, and obtain rare earth metal multibore tunnel nanotube.The cross section of rare earth metal hydroxide and rare earth oxide multibore tunnel nanotube prepared by the present invention is loose structure, and is internally formed tunnel, size uniformity in nanotube, caliber is 200 ~ 300nm or so, thickness of pipe wall 20nm or so, good dispersion, pipe surface is smooth, it is easy to collect.The present invention adopts solvent-thermal method, by regulating and controlling the species of rare earth precursor, reaction time and temperature, obtains component difference, and the different multibore tunnel nanotube of size, method are simple, it is easy to operate.
Description
Technical field
The present invention relates to the preparing technical field of nano material, more particularly to a kind of rare earth metal hydroxide and rare earth
Oxide porous tunnel nanotube and preparation method thereof.
Background technology
Rare earth nano material has Peculiar properties of rare earths and nano-meter characteristic concurrently, with comprehensive good characteristic.The nanometer of one-dimentional structure
Material has low dimension and high specific surface area, shows much peculiar physical property, many functions of rare earth oxide
Such as luminescent properties, catalytic performance etc. are all affected by its form and composition.
With deepening continuously for nanotechnology research, it has been found that if be prepared into rare earth metal or its oxide one-dimensional
Structure, such as nano wire, nanotube, material will be provided simultaneously with quantum size effect and specific form effect.Wherein rare earth metal and
Its oxide nano, significantly increases specific surface area, can produce more surface-interface effects.Therefore, rare earth metal and
Its oxide nano, than simple nano particle, nanometer rods have, and in optics, electronics, urge
There is important application prospect in the fields such as change.
For rare earth metal hydroxide and its oxide nano, previously reported major part is hollow for one channel, cylinder
Shape nanotube, with regard to rare earth metal hydroxide and its oxide porous tunnel, the preparation of prism-shaped nanotube, there is no both at home and abroad
Report.
It is based on the above, there is provided a kind of rare earth metal hydroxide and rare earth oxide with multibore tunnel structure is received
Mitron and preparation method thereof is necessary.
Content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of rare earth metal hydroxide and
Rare earth oxide multibore tunnel nanotube and preparation method thereof, with smooth, size uniformity of realizing a kind of tube wall, cross section is porous
Structure, and be internally formed tunnel in nanotube, good dispersion, composition are controllable, it is easy to the rare earth metal hydroxide of collection and
Rare earth oxide multibore tunnel nanotube.
For achieving the above object and other related purposes, the present invention provides a kind of rare earth metal hydroxide multibore tunnel and receives
The preparation method of mitron, the preparation method include step：Step 1), by cetyl trimethylammonium bromide CTAB and deionization
Water is added and is well mixed in reaction vessel, obtains the first mixed liquor；Step 2), rare earth soluble-salt is added first mixing
In liquid, the second mixed liquor after stirring, is obtained；Step 3), precipitating reagent is added in second mixed liquor, after stirring, one section is incubated
Time, washing are collected after drying, and obtain rare earth metal hydroxide multibore tunnel nanotube.
As a kind of preferred version of the preparation method of the rare earth metal hydroxide multibore tunnel nanotube of the present invention, step
Rapid 1) in, the cetyl trimethylammonium bromide CTAB and deionized water are stirred and are well mixed, stir adopt temperature
Spend for room temperature, the time of stirring is 1～2h.
As a kind of preferred version of the preparation method of the rare earth metal hydroxide multibore tunnel nanotube of the present invention, step
Rapid 2) in, the rare earth soluble-salt is nitrate, chlorate one or more salt-mixture.
Preferably, in the salt-mixture, the molar ratio range of any two kinds of soluble-salt consumptions is 1:1～1:3.
As a kind of preferred version of the preparation method of the rare earth metal hydroxide multibore tunnel nanotube of the present invention, step
Rapid 3) in, the precipitating reagent be ammoniacal liquor, one kind of NaOH.
As a kind of preferred version of the preparation method of the rare earth metal hydroxide multibore tunnel nanotube of the present invention, step
Rapid 3) in, precipitating reagent is added in second mixed liquor, after stirring in water heating kettle insulation a period of time, hydrothermal temperature is
100～150 DEG C, temperature retention time is 24～36h.
As a kind of preferred version of the preparation method of the rare earth metal hydroxide multibore tunnel nanotube of the present invention, step
Rapid 3) in, washing using deionized water and ethanol one or two.
As a kind of preferred version of the preparation method of the rare earth metal hydroxide multibore tunnel nanotube of the present invention, step
Rapid 3) in, be dried using vacuum drying mode, dry temperature is 40～80 DEG C.
The present invention also provides a kind of rare earth metal hydroxide multibore tunnel nanotube, and the rare earth metal hydroxide is more
Tunnel nanotube in hole is loose structure, loose structure shape inside the rare earth metal hydroxide multibore tunnel nanotube
Into tunnel.
As a kind of preferred version of the rare earth metal hydroxide multibore tunnel nanotube of the present invention, the rare earth metal
The caliber of hydroxide porous tunnel nanotube is 200～300nm, and wall thickness is 15～25nm.
The present invention also provides a kind of preparation method of rare earth oxide multibore tunnel nanotube, including step：According to above-mentioned
The preparation method of the rare earth metal hydroxide multibore tunnel nanotube described in any one scheme prepares rare earth metal hydroxide
Thing multibore tunnel nanotube；And step 4), the rare earth metal hydroxide multibore tunnel nanotube is heat-treated, is obtained
Obtain rare earth oxide multibore tunnel nanotube.
As a kind of preferred version of the preparation method of the rare earth oxide multibore tunnel nanotube of the present invention, at the heat
The temperature of reason is 500～700 DEG C, and temperature retention time is 1～6h, and environment is aerobic environment.
The present invention also provides a kind of rare earth oxide multibore tunnel nanotube, the rare earth oxide multibore tunnel nanotube
For loose structure, the loose structure is internally formed tunnel in the rare earth oxide multibore tunnel nanotube.
As a kind of preferred version of the rare earth oxide multibore tunnel nanotube of the present invention, the rare-earth oxide
The caliber of multibore tunnel nanotube is 200～300nm, and wall thickness is 15～25nm.
As described above, the rare earth metal hydroxide of the present invention and rare earth oxide multibore tunnel nanotube and its preparation side
Method, has the advantages that：
The cross section of rare earth metal hydroxide and rare earth oxide multibore tunnel nanotube prepared by the present invention is many
Pore structure, and tunnel is internally formed in nanotube, size uniformity, caliber are 200～300nm or so, thickness of pipe wall 20nm or so,
Good dispersion, pipe surface are smooth, it is easy to collect.The present invention adopts solvent-thermal method, by regulating and controlling the species of rare earth precursor,
Reaction time and temperature, obtain component difference, and the different multibore tunnel nanotube of size, agents useful for same are nontoxic, and method is simple, easily
In operation.
Description of the drawings
Fig. 1 is shown as each step of preparation method of the rare earth metal hydroxide multibore tunnel nanotube of the present invention and is presented
Schematic flow sheet.
Fig. 2 is shown as the flow process is presented by each step of preparation method of the rare earth oxide multibore tunnel nanotube of the present invention
Schematic diagram.
Fig. 3 is shown as dilute prepared by the preparation method of 1 middle rare earth metal hydroxides multibore tunnel nanotube of embodiment
The SEM figures of the hydroxide porous tunnel nanotube of earth metal.
Fig. 4 is shown as the rare earth oxide porous in example 4 prepared by the preparation method of oxide porous tunnel nanotube
The SEM figures of tunnel nanotube.
Fig. 5 is shown as the rare earth oxide porous in example 4 prepared by the preparation method of oxide porous tunnel nanotube
The XRD spectrum of tunnel nanotube.
Component label instructions
S11～S13 steps 1)～step 3)
S24 steps 4)
Specific embodiment
Embodiments of the present invention are described below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different concrete realities
The mode of applying is carried out or applies, and the every details in this specification can also be based on different viewpoints and application, without departing from
Various modifications and changes are carried out under the spirit of the present invention.
Refer to Fig. 1～Fig. 5.It should be noted that the diagram provided in the present embodiment only illustrates this in a schematic way
The basic conception of invention, only shows the component relevant with the present invention rather than according to package count during actual enforcement in illustrating then
Mesh, shape and size are drawn, and which is actual when the implementing kenel of each component, quantity and ratio can be a kind of random change, and its
Assembly layout kenel is likely to increasingly complex.
As shown in figure 1, the present embodiment provides a kind of preparation method of rare earth metal hydroxide multibore tunnel nanotube, institute
Stating preparation method includes step：
Step 1) S11, cetyl trimethylammonium bromide CTAB and deionized water are added and is well mixed in reaction vessel,
Obtain the first mixed liquor；
As an example, step 1) in, the cetyl trimethylammonium bromide CTAB and deionized water are stirred mixed
Closing uniformly, the temperature for adopting being stirred for room temperature, the time of stirring is 1～2h.
Step 2) S12, rare earth soluble-salt is added in first mixed liquor, the second mixed liquor after stirring, is obtained；
As an example, step 2) in, the rare earth soluble-salt is nitrate, chlorate one or more mixing
Salt.Preferably, in the salt-mixture, the molar ratio range of any two kinds of soluble-salt consumptions is 1:1～1:3.
Step 3) S13, precipitating reagent is added in second mixed liquor, insulation a period of time after stirring, after washing is dried
Collect, obtain rare earth metal hydroxide multibore tunnel nanotube.
As an example, step 3) in, the precipitating reagent be ammoniacal liquor, one kind of NaOH.Precipitating reagent is added described
In two mixed liquors, after stirring in water heating kettle insulation a period of time, hydrothermal temperature be 100～150 DEG C, temperature retention time be 24～
36h.
As an example, step 3) in, washing using deionized water and ethanol one or two.
As an example, step 3) in, it is dried using vacuum drying mode, dry temperature is 40～80 DEG C.
The present embodiment also provides a kind of rare earth metal hydroxide multibore tunnel nanotube, the rare earth metal multibore tunnel
Nanotube is loose structure, and the loose structure is internally formed tunnel in the rare earth metal multibore tunnel nanotube.
As an example, the caliber of the rare earth metal multibore tunnel nanotube is 200～300nm, and wall thickness is 15～25nm.
In a specific implementation process, the preparation method of the rare earth metal multibore tunnel nanotube, including step：
The ultra-pure water for weighing 0.2730g cetyl trimethylammonium bromides (CTAB) and 15ml is put in 25ml beakers and mixes
Close, obtain the first mixed liquor.After adding 0.3686g samaric nitrates, in magnetic stirring apparatus, stirring mixing 1h, obtains the second mixed liquor.Will
The ammoniacal liquor of the 25% of 0.1ml is added dropwise in the second mixed liquor, and stirring 2h obtains suspension.Suspension is put into 25ml water heating kettles
In, 24h is incubated at 120 DEG C.After being cooled to room temperature, deionized water and ethanol washes clean is distinguished, at 60 DEG C, vacuum is done
Dry overnight, obtain samaric hydroxide multibore tunnel nanotube.Fig. 3 is shown as the present embodiment middle rare earth metal hydroxides multibore tunnel
The SEM figures of the rare earth metal hydroxide multibore tunnel nanotube prepared by the preparation method of nanotube.As seen from the figure, this enforcement
The cross section of the rare earth metal hydroxide multibore tunnel nanotube prepared by example is loose structure, and shape inside the nanotube
Into tunnel, size uniformity, caliber are 200～300nm or so, thickness of pipe wall 20nm or so, and good dispersion, pipe surface are smooth.
Embodiment 2
As shown in figure 1, the present embodiment provides a kind of preparation method of rare earth metal hydroxide multibore tunnel nanotube, institute
State preparation method and specifically include step：The ultra-pure water for weighing 0.2730g cetyl trimethylammonium bromides (CTAB) and 15ml is put
Enter in 25ml beakers and mix, obtain the first mixed liquor.After adding 0.3686g lanthanum nitrates, in magnetic stirring apparatus, stirring mixing 1h, obtains
Second mixed liquor.The 25% of 0.1ml ammoniacal liquor is added dropwise in the second mixed liquor, stirring 2h obtains suspension.By suspension
Be put in 25ml water heating kettles, 24h is incubated at 120 DEG C.After being cooled to room temperature, deionized water and ethanol washes clean is distinguished,
Dried in vacuum overnight at 60 DEG C, obtains lanthanum hydroxide porous tunnel nanotube.
Embodiment 3
As shown in figure 1, the present embodiment provides a kind of preparation method of rare earth metal hydroxide multibore tunnel nanotube, institute
State preparation method and specifically include step：The ultra-pure water for weighing 0.2730g cetyl trimethylammonium bromides (CTAB) and 15ml is put
Enter in 25ml beakers and mix, obtain the first mixed liquor.After adding 0.3686g cerous nitrates, in magnetic stirring apparatus, stirring mixing 1h, obtains
Second mixed liquor.The 25% of 0.1ml ammoniacal liquor is added dropwise in the second mixed liquor, stirring 2h obtains suspension.By suspension
Be put in 25ml water heating kettles, 24h is incubated at 120 DEG C.After being cooled to room temperature, deionized water and ethanol washes clean is distinguished,
Dried in vacuum overnight at 60 DEG C, obtains cerium hydroxide multibore tunnel nanotube.
Embodiment 4
As shown in Fig. 2 the present embodiment provides a kind of preparation method of rare earth oxide multibore tunnel nanotube, including step
Suddenly：Rare earth metal hydrogen is prepared using the preparation method of rare earth metal hydroxide multibore tunnel nanotube as described in Example 1
Oxide porous tunnel nanotube；
Also include step 4) S24, the rare earth metal hydroxide multibore tunnel nanotube is heat-treated, is obtained dilute
The oxide porous tunnel nanotube of soil.
As an example, the temperature of the heat treatment is 500～700 DEG C, and temperature retention time is 1～6h, and environment is aerobic environment.
In a specific implementation process, by the samaric hydroxide multibore tunnel nanotube obtained in example 1 at 700 DEG C
Insulation 1h, obtains samarium oxide multibore tunnel nanotube.Fig. 4 is shown as the preparation of oxide porous tunnel nanotube in the present embodiment
The SEM figures of the rare earth oxide multibore tunnel nanotube prepared by method.Fig. 5 is shown as oxide porous tunnel in the present embodiment
The XRD spectrum of the rare earth oxide multibore tunnel nanotube prepared by the preparation method of nanotube.As seen from the figure, the present embodiment institute
The cross section of the rare earth oxide multibore tunnel nanotube of preparation is loose structure, and is internally formed tunnel, chi in nanotube
Very little homogeneous, caliber is 200～300nm or so, thickness of pipe wall 20nm or so, and good dispersion, pipe surface are smooth.
The present embodiment also provides a kind of rare earth oxide multibore tunnel nanotube, the rare earth oxide multibore tunnel nanometer
Manage as loose structure, the loose structure forms tunnel in the rare earth oxide multibore tunnel Nanometer hydroxide.
As an example, the caliber of the rare earth metal multibore tunnel nanotube is 200～300nm, and wall thickness is 15～25nm.
Embodiment 5
As shown in Fig. 2 the present embodiment provides a kind of preparation method of rare earth oxide multibore tunnel nanotube, including step
Suddenly：Rare earth metal hydroxide is prepared using the preparation method of rare earth metal multibore tunnel nanotube as described in Example 2 many
Hole tunnel nanotube；
Also include step 4), the rare earth metal multibore tunnel nanotube is heat-treated, rare earth oxide is obtained many
Hole tunnel nanotube.
As an example, the temperature of the heat treatment is 500～700 DEG C, and temperature retention time is 1～6h, and environment is aerobic environment.
In a specific implementation process, by the lanthanum hydroxide porous tunnel nanotube obtained in example 2 at 700 DEG C
Insulation 1h, obtains lanthana multibore tunnel nanotube.
Embodiment 6
As shown in Fig. 2 the present embodiment provides a kind of preparation method of rare earth oxide multibore tunnel nanotube, including step
Suddenly：Rare earth metal hydrogen is prepared using the preparation method of rare earth metal hydroxide multibore tunnel nanotube as described in Example 3
Oxide porous tunnel nanotube；
Also include step 4) S14, the rare earth metal hydroxide multibore tunnel nanotube is heat-treated, is obtained dilute
The oxide porous tunnel nanotube of soil.
As an example, the temperature of the heat treatment is 500～700 DEG C, and temperature retention time is 1～6h, and environment is aerobic environment.
In a specific implementation process, by the cerium hydroxide multibore tunnel nanotube obtained in example 3 at 700 DEG C
Insulation 1h, obtains cerium oxide multibore tunnel nanotube.
Embodiment 7
As shown in figure 1, the present embodiment provides a kind of preparation method of multibore tunnel nanotube, the preparation method is specifically wrapped
Include step：The ultra-pure water for weighing 0.2730g cetyl trimethylammonium bromides (CTAB) and 15ml is put into mixing in 25ml beakers,
Obtain the first mixed liquor.(mol ratio of samaric nitrate and lanthanum nitrate is to add 0.3686g samaric nitrates and 0.2695g lanthanum nitrates：1:1)
Afterwards, stirring mixing 1h in magnetic stirring apparatus, obtains the second mixed liquor.The 25% of 0.1ml ammoniacal liquor is added dropwise over the second mixing
In liquid, stirring 2h obtains suspension.Suspension is put in 25ml water heating kettles, and 24h is incubated at 120 DEG C.After being cooled to room temperature,
Deionized water and ethanol washes clean, dried in vacuum overnight at 60 DEG C, obtain lanthanum, the multibore tunnel nanometer of samarium mixing respectively
Pipe.
Embodiment 8
As shown in Fig. 2 the present invention provides a kind of preparation method of rare-earth oxidation mixture multibore tunnel nanotube, including step
Suddenly：Rare earth metal multibore tunnel is prepared using the preparation method of rare earth metal multibore tunnel nanotube as described in Example 7 to receive
Mitron；
Also include step 4) S14, the rare earth metal multibore tunnel nanotube is heat-treated, rare-earth oxidation is obtained and is mixed
Compound multibore tunnel nanotube.
As an example, the temperature of the heat treatment is 500～700 DEG C, and temperature retention time is 1～6h, and environment is aerobic environment.
In a specific implementation process, the multibore tunnel nanotube that the lanthanum samarium obtained in example 7 is mixed is at 700 DEG C
Lower insulation 1h, obtains samarium oxide and lanthana mixing multibore tunnel nanotube.
As described above, the rare earth metal hydroxide of the present invention and rare earth oxide multibore tunnel nanotube and its preparation side
Method, has the advantages that：
The cross section of hydroxide and rare earth oxide multibore tunnel nanotube prepared by the present invention be loose structure, and
And tunnel is internally formed in nanotube, and size uniformity, caliber is 200～300nm or so, thickness of pipe wall 20nm or so, good dispersion,
Pipe surface is smooth, it is easy to collect.The present invention adopts solvent-thermal method, by regulating and controlling the species of rare earth precursor, reaction time
And temperature, component difference is obtained, the different multibore tunnel nanotube of size, agents useful for same are nontoxic, and method is simple, it is easy to operate.
So, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The principle and its effect of above-described embodiment only illustrative present invention, of the invention not for limiting.Any ripe
The personage for knowing this technology all can carry out modifications and changes to above-described embodiment under the spirit and the scope without prejudice to the present invention.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (14)
1. a kind of preparation method of rare earth metal hydroxide multibore tunnel nanotube, it is characterised in that the preparation method bag
Include step：
Step 1), cetyl trimethylammonium bromide CTAB and deionized water are added and be well mixed in reaction vessel, the is obtained
One mixed liquor；
Step 2), rare earth soluble-salt is added in first mixed liquor, the second mixed liquor after stirring, is obtained；
Step 3), precipitating reagent is added in second mixed liquor, insulation a period of time after stirring, washing are collected after drying, and are obtained
Arrive rare earth metal hydroxide multibore tunnel nanotube.
2. the preparation method of rare earth metal hydroxide multibore tunnel nanotube according to claim 1, it is characterised in that：
Step 1) in, the cetyl trimethylammonium bromide CTAB and deionized water are stirred and are well mixed, stirring is adopted
Temperature is room temperature, and the time of stirring is 1～2h.
3. the preparation method of rare earth metal hydroxide multibore tunnel nanotube according to claim 1, it is characterised in that：
Step 2) in, the rare earth soluble-salt is nitrate, chlorate one or more salt-mixture.
4. the preparation method of rare earth metal hydroxide multibore tunnel nanotube according to claim 3, it is characterised in that：
In the salt-mixture, the molar ratio range of any two kinds of soluble-salt consumptions is 1:1～1:3.
5. the preparation method of rare earth metal hydroxide multibore tunnel nanotube according to claim 1, it is characterised in that：
Step 3) in, the precipitating reagent be ammoniacal liquor, one kind of NaOH.
6. the preparation method of rare earth metal hydroxide multibore tunnel nanotube according to claim 1, it is characterised in that：
Step 3) in, precipitating reagent is added in second mixed liquor, after stirring, a period of time is incubated in water heating kettle, hydrothermal temperature is
100～150 DEG C, temperature retention time is 24～36h.
7. the preparation method of rare earth metal hydroxide multibore tunnel nanotube according to claim 1, it is characterised in that：
Step 3) in, washing using deionized water and ethanol one or two.
8. the preparation method of rare earth metal hydroxide multibore tunnel nanotube according to claim 1, it is characterised in that：
Step 3) in, it is dried using vacuum drying mode, dry temperature is 40～80 DEG C.
9. a kind of rare earth metal hydroxide multibore tunnel nanotube, it is characterised in that the rare earth metal hydroxide porous
Tunnel nanotube is loose structure, and the loose structure is internally formed in the rare earth metal hydroxide multibore tunnel nanotube
Tunnel.
10. rare earth metal hydroxide multibore tunnel nanotube as claimed in claim 9, it is characterised in that：The rare earth gold
The caliber of genus polyporus tunnel nanotube is 200～300nm, and wall thickness is 15～25nm.
11. a kind of preparation methods of rare earth oxide multibore tunnel nanotube, it is characterised in that including step：
Preparation method system according to the rare earth metal hydroxide multibore tunnel nanotube described in claim 1～8 any one
Standby rare earth metal hydroxide multibore tunnel nanotube；
Step 4), the rare earth metal hydroxide multibore tunnel nanotube is heat-treated, rare earth oxide porous is obtained
Tunnel nanotube.
The preparation method of 12. rare earth oxide multibore tunnel nanotubes according to claim 11, it is characterised in that：Described
The temperature of heat treatment is 500～700 DEG C, and temperature retention time is 1～6h, and environment is aerobic environment.
A kind of 13. rare earth oxide multibore tunnel nanotubes, it is characterised in that：The rare earth oxide multibore tunnel nanotube is
Loose structure, the loose structure are internally formed tunnel in the rare earth oxide multibore tunnel nanotube.
14. rare earth oxide multibore tunnel nanotubes as claimed in claim 13, it is characterised in that：The rare earth metal porous
The caliber of tunnel nanotube is 200～300nm, and wall thickness is 15～25nm.
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