CN106186007A - A kind of MgO granule with micron/nano composite construction and preparation method thereof - Google Patents
A kind of MgO granule with micron/nano composite construction and preparation method thereof Download PDFInfo
- Publication number
- CN106186007A CN106186007A CN201610530985.8A CN201610530985A CN106186007A CN 106186007 A CN106186007 A CN 106186007A CN 201610530985 A CN201610530985 A CN 201610530985A CN 106186007 A CN106186007 A CN 106186007A
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- Prior art keywords
- mgo
- micron
- granule
- composite construction
- nano composite
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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
- C01F5/00—Compounds of magnesium
- C01F5/02—Magnesia
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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
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
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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
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
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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
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
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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
- C01P2006/12—Surface area
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- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of MgO granule with micron/nano composite construction, the MgO granule of described micron/nano composite construction is micron MgO Dispersion on surface arrangement nano-MgO granule, and wherein, micron MgO and nano-MgO are spheroidal particle.After the MgO material powder that particle diameter is micron is carried out reacting processing by the present invention, then obtain the MgO granule with micron/nano composite construction through calcination processing.The powder body being made up of this MgO granule with micron/nano composite construction, had both had bigger specific surface area, had possessed again good mobility, contributed to solving the problem that nano-MgO inconvenience processes and uses.
Description
Technical field
The invention belongs to technical field of inorganic material, especially relate to a kind of MgO with micron/nano composite construction
Grain and preparation method thereof.
Background technology
MgO is a kind of important inorganic chemical product, can be used for the industry such as refractory material, metallurgy, rubber, paint, papermaking
Field.Compared with common MgO material, nanoscale MgO has obvious small-size effect, skin effect, quantum size effect
With macroscopic view tunnel-effect.But the small size of nanoscale MgO makes it easily reunite and absorption, and poor fluidity, limit
It is in the application in the fields such as electronics, catalysis, pottery, oil product, coating.All have simultaneously big specific surface area again be difficult to reunite and
Absorption, mobility preferable MgO granule is highly desirable.
Summary of the invention
The invention aims to solve shortcoming present in prior art, and the one proposed has micron/nano again
Close MgO granule of structure and preparation method thereof.
The invention provides a kind of MgO granule with micron/nano composite construction, described micron/nano composite construction
MgO granule is micron MgO Dispersion on surface arrangement nano-MgO granule, and wherein, micron MgO and nano-MgO are spheroidal particle.Receive
Rice micron MgO composite construction also presents the shape of spherical particle.
Preferably, the specific surface area of described MgO granule is 50-1000m2/g.More preferably 300-850 m2/g。
Preferably, described MgO granule particle diameter be 5 μm≤particle diameter≤80 μm.More preferably 15 μm≤particle diameter≤
60μm。
The present invention also provides for the preparation method of a kind of MgO granule prepared and have micron/nano composite construction, and its feature exists
In, concretely comprise the following steps: the CTAB accurately weighing certain mass is placed in beaker, adds a certain amount of distilled water, and magnetic agitation is extremely
CTAB is completely dissolved.It is subsequently adding a micron MgO granule, pipettes TEOS with pipet the most again, be slowly added dropwise into beaker, continue to stir
After mixing about 10min, white gels occurs；White gels is put into buchner funnel sucking filtration, repeatedly washes with distilled water during sucking filtration
Wash, to producing white solid.Being paved by white solid puts in crucible, dries 3h, dried product exhibited agate mortar at 120 DEG C
It is ground into fine powder, high-temperature roasting in muffle furnace.
Said method is the sol-gal process in conventional porous materials, uses addition template to prepare nano-particle,
After high temperature burn off nog plate agent again, leave nano-particle.
Preferably, in described method, each ingredients weight parts magnitude relation is CTAB:MgO:TEOS=1:1-3:2-8.
Preferably, muffle furnace heating rate is 5 DEG C/min, keeps 5 hours after being increased to 500 DEG C.Heating rate is difficult to too
Hurry up, heating process slowly makes the ratio that template is burnt more thoroughly, keep to make micron and nano in 5 hours
MgO granule keeps stable structure, and can thoroughly remove template.
After the MgO material powder that particle diameter is micron is carried out reacting processing by the present invention that the present invention provides, then through calcining
Process the MgO granule obtaining there is micron/nano composite construction.By this MgO granule group with micron/nano composite construction
Become powder body, both there is bigger specific surface area, possessed again good mobility, contribute to solve nano-MgO inconvenience process and
The problem used.The MgO granule with micron/nano composite construction of the present invention can be applicable to sewage disposal, catalyst carrier,
The fields such as the additive of rubber and plastics.And the method for the present invention has raw material simply, low cost, method is simple to operation
Advantage.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is explained orally further.
Embodiment 1
Accurately weighing the CTAB that mass parts is 1 part to be placed in beaker, add a certain amount of distilled water, magnetic agitation is complete to CTAB
Dissolve.It is subsequently adding micron MgO granule 2 parts, pipettes 3 parts of TEOS with pipet the most again, be slowly added dropwise into beaker, continue stirring
After about 10min, white gels occurs；White gels is put into buchner funnel sucking filtration, repeatedly washs with distilled water during sucking filtration,
To producing white solid.Being paved by white solid puts in crucible, dries 3h at 120 DEG C, and dried product exhibited agate mortar grinds
Become fine powder, high-temperature roasting in muffle furnace.Muffle furnace heating rate is 5 DEG C/min, keeps 5 hours after being increased to 500 DEG C.
Embodiment 2
Accurately weighing the CTAB that mass parts is 1 part to be placed in beaker, add a certain amount of distilled water, magnetic agitation is complete to CTAB
Dissolve.It is subsequently adding micron MgO granule 1 part, pipettes 5 parts of TEOS with pipet the most again, be slowly added dropwise into beaker, continue stirring
After about 10min, white gels occurs；White gels is put into buchner funnel sucking filtration, repeatedly washs with distilled water during sucking filtration,
To producing white solid.Being paved by white solid puts in crucible, dries 3h at 120 DEG C, and dried product exhibited agate mortar grinds
Become fine powder, high-temperature roasting in muffle furnace.Muffle furnace heating rate is 5 DEG C/min, keeps 5 hours after being increased to 500 DEG C.
Embodiment 3
Accurately weighing the CTAB that mass parts is 1 part to be placed in beaker, add a certain amount of distilled water, magnetic agitation is complete to CTAB
Dissolve.It is subsequently adding micron MgO granule 2 parts, pipettes 8 parts of TEOS with pipet the most again, be slowly added dropwise into beaker, continue stirring
After about 10min, white gels occurs；White gels is put into buchner funnel sucking filtration, repeatedly washs with distilled water during sucking filtration,
To producing white solid.Being paved by white solid puts in crucible, dries 3h at 120 DEG C, and dried product exhibited agate mortar grinds
Become fine powder, high-temperature roasting in muffle furnace.Muffle furnace heating rate is 5 DEG C/min, keeps 5 hours after being increased to 500 DEG C.
The MgO granule of micron/nano composite construction embodiment 1-3 prepared detects, and result of the test is as follows:
The MgO granule of micron/nano composite construction prepared by table 1 embodiment 1-3
| Particle diameter | Specific surface area | |
| Embodiment 1 | 25 μm≤particle diameter≤100 μm. | 856 m2/g |
| Embodiment 2 | 15 μm≤particle diameter≤90 μm. | 423m2/g |
| Embodiment 3 | 15 μm≤particle diameter≤60 μm. | 125m2/g |
As shown in table 1, the MgO grain diameter of the micron/nano composite construction that the present invention provides is between MgO of nanometer and micron
Between Li so that the MgO granule of the micron/nano composite construction of the present invention has bigger specific surface area, and the group of being difficult to simultaneously
Poly-.
After the MgO material powder that particle diameter is micron is carried out reacting processing by the present invention, then had through calcination processing
The MgO granule of micron/nano composite construction.The powder body being made up of this MgO granule with micron/nano composite construction, both
There is bigger specific surface area, possess again good mobility, contribute to solving the problem that nano-MgO inconvenience processes and uses.
The MgO granule with micron/nano composite construction of the present invention can be applicable to sewage disposal, catalyst carrier, rubber and plastics
The field such as additive.And the method for the present invention has raw material simply, low cost, the advantages such as method is simple to operation.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (6)
1. a MgO granule with micron/nano composite construction, it is characterised in that the MgO of described micron/nano composite construction
Granule is micron MgO Dispersion on surface arrangement nano-MgO granule, and wherein, micron MgO and nano-MgO are spheroidal particle.
The MgO granule with micron/nano composite construction the most according to claim 1, it is characterised in that described MgO granule
Specific surface area be 50-1000m2/g。
The MgO granule with micron/nano composite construction the most according to claim 1, it is characterised in that described MgO granule
Particle diameter be 5 μm≤particle diameter≤80 μm.
4. the preparation method preparing the MgO granule with micron/nano composite construction, it is characterised in that concretely comprise the following steps:
The CTAB accurately weighing certain mass is placed in beaker, adds a certain amount of distilled water, and magnetic agitation is completely dissolved to CTAB；
It is subsequently adding a micron MgO granule, pipettes TEOS with pipet the most again, be slowly added dropwise into beaker, continue stir about 10min
After white gels occurs；White gels is put into buchner funnel sucking filtration, repeatedly washs with distilled water during sucking filtration, white to producing
Color solid；
Being paved by white solid puts in crucible, dries 3h at 120 DEG C, and dried product exhibited agate mortar is ground into fine powder, horse
High-temperature roasting in good fortune stove.
Preparation method the most according to claim 4, it is characterised in that in the method, each ingredients weight parts magnitude relation is
CTAB:MgO:TEOS=1:1-3:2-8。
Preparation method the most according to claim 4, it is characterised in that muffle furnace heating rate is 5 DEG C/min, is increased to
Keep 5 hours after 500 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610530985.8A CN106186007A (en) | 2016-07-07 | 2016-07-07 | A kind of MgO granule with micron/nano composite construction and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610530985.8A CN106186007A (en) | 2016-07-07 | 2016-07-07 | A kind of MgO granule with micron/nano composite construction and preparation method thereof |
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| CN106186007A true CN106186007A (en) | 2016-12-07 |
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| CN201610530985.8A Pending CN106186007A (en) | 2016-07-07 | 2016-07-07 | A kind of MgO granule with micron/nano composite construction and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1288859A (en) * | 2000-11-03 | 2001-03-28 | 清华大学 | Preparation of high temperature resisting electrothermal insulating magnesia material |
| CN103073017A (en) * | 2013-02-26 | 2013-05-01 | 重庆文理学院 | Ordered mesopore silicon nano material with MCM-41 molecular sieve structure and preparation method |
| CN103145163A (en) * | 2013-03-15 | 2013-06-12 | 河南工业大学 | Method for preparing aluminum-silicon composite oxide with mesoporous hollow microsphere structure |
-
2016
- 2016-07-07 CN CN201610530985.8A patent/CN106186007A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1288859A (en) * | 2000-11-03 | 2001-03-28 | 清华大学 | Preparation of high temperature resisting electrothermal insulating magnesia material |
| CN103073017A (en) * | 2013-02-26 | 2013-05-01 | 重庆文理学院 | Ordered mesopore silicon nano material with MCM-41 molecular sieve structure and preparation method |
| CN103145163A (en) * | 2013-03-15 | 2013-06-12 | 河南工业大学 | Method for preparing aluminum-silicon composite oxide with mesoporous hollow microsphere structure |
Non-Patent Citations (1)
| Title |
|---|
| CHEN-XI GUI ET AL.: ""Core-shell structured MgO@mesoporous silica spheres for enhanced adsorption of methylene blue and lead ions"", 《RSC ADV.》 * |
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