CN107585749A - Boron nitride nanosheet powder, its green magnanimity preparation method and application - Google Patents
Boron nitride nanosheet powder, its green magnanimity preparation method and application Download PDFInfo
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Abstract
The invention discloses a kind of boron nitride nanosheet powder, its green magnanimity preparation method and application.The green magnanimity preparation method includes：Boron source and carrier are mixed as predecessor; 700~1100 DEG C are warming up in ammonia atmosphere and is incubated 60~180min; room temperature is down in protective atmosphere afterwards; obtain crude product; obtained crude product is post-processed again; the pure boron nitride nanosheet powder of magnanimity is obtained, the boron source includes boron oxide, and the carrier includes sodium chloride and/or potassium chloride.The preparation technology of the present invention is simple, and green non-pollution, raw material is cheap and easy to get and safe and non-toxic, and the conversion ratio of boron source can reach 89%, and it is hexagonal boron nitride nanosheet to obtain boron nitride nanosheet powder, and its purity is more than 99%.Nationality can be realized gram level batch green production of high-purity boron nitride nanosheet powder by the present invention.
Description
Technical field
Present invention relates particularly to a kind of method that green magnanimity prepares boron nitride nanosheet powder, belong to inorganic nano material
Technical field.
Background technology
Boron nitride structure is similar to graphite, belongs to hexagonal crystal system, and B atoms and N atoms are with Covalent bonding together in face, between face
Atom is combined with Van der Waals for.Contain boron nitride nanosheet, boron nitride nano-tube, boron nitride nanometer in boron nitride family
Many members such as band, boron nitride aeroge, boron nitride quantum dot, wherein hexagonal boron nitride nanosheet are a kind of important broad stopbands
Semi-conducting material, its energy gap reach 5~6eV, have excellent physicochemical properties, and such as excellent thermal conductance, chemistry is steady
It is qualitative, fabulous insulating properties, hydrophobicity, big specific surface area, good bio-compatibility and good high temperature resistant, anti-oxidant
Performance etc., it can be widely used for the high-tech areas such as machinery, electronics, Aero-Space, biological medicine.Obviously, boron nitride nanosheet
These remarkable performances not only to basic research, while also for advanced material development and wider practical application bring it is huge
Big potentiality.Therefore, to boron nitride nanosheet preparation as current boron nitride nanometer Material Field important research direction it
One.
It is reported that Pacil prepares boron nitride nanosheet with the method for mechanical stripping first, specific method is to be by particle diameter
10um hexagonal boron nitride powder is adhered to adhesive tape in the silica substrate that thickness is 300nm, then by force by boron nitride
Small fragment is separated into, finally obtains the two-dimentional boron nitride nanosheet of only several atomic layer level thickness.Afterwards, there is research people again
Member has developed a variety of methods successively, technology prepares boron nitride nanosheet, such as ball-milling method, ultrasonic wave added stripping method, chemical gas
Phase sedimentation, wet chemistry method etc..Ball-milling method can obtain greater number of boron nitride nanosheet compared with mechanical stripping method.Example
Such as, Li et al. reports a kind of gentle wet ball mill method, and this method can obtain size and slightly have the several atomic layers thicks reduced
The boron nitride nanosheet of degree, and the crystallinity of nanoscale twins is good.And for example, Lin etc. is demonstrated under ultrasonic wave added effect, water
Boron nitride can be efficiently peeled off, and on the premise of any surfactant and functionalized modification is not added with, can be obtained water-soluble
The boron nitride nanosheet of property.Nineteen sixty-eight, Rand et al. can be traced back to by preparing boron nitride nanosheet using chemical vapour deposition technique
Utilize diborane (B2H6) and ammonia (NH3) presoma is used as, in the range of 600~1080 DEG C, deposition is on different substrates.
For wet chemistry method, Rao et al. boric acid (H3BO3) and urea (CO (NH2)2) in N2900 DEG C are heated under protection and is made several
The boron nitride nanosheet of atomic layer level thickness.
Although the preparation method of existing boron nitride nanosheet has many kinds, but is difficult in yield, cost, crystallization
Property, environmental protection etc. realize and take into account that this largely limits the application of boron nitride nanosheet.
Therefore, researching and developing a kind of method that green magnanimity prepares boron nitride nanosheet powder has very urgent current demand.
The content of the invention
It is a primary object of the present invention to provide a kind of boron nitride nanosheet powder, its green magnanimity preparation method and answer
With to overcome deficiency of the prior art.
To realize foregoing goal of the invention, the technical solution adopted by the present invention includes：
The embodiments of the invention provide a kind of method that green magnanimity prepares boron nitride nanosheet powder, it includes：
The predecessor being mainly thoroughly mixed to form by boron source and carrier is provided, the boron source includes boron oxide, the carrier
Including sodium chloride and/or potassium chloride；
The predecessor is heated to 700~1100 DEG C in ammonia atmosphere, and 60~180min is incubated in the atmosphere,
Room temperature is down in protective atmosphere afterwards, obtains crude product, then the crude product is post-processed, obtains the purified nitrogen of magnanimity
Change boron nanometer sheet powder.
In a preferred embodiment, the boron source is boron oxide.
In a preferred embodiment, the carrier is sodium chloride and/or potassium chloride.
The embodiment of the present invention additionally provides the boron nitride nanosheet powder prepared by methods described.
The embodiment of the present invention additionally provides the purposes of the boron nitride nanosheet powder.
Compared with prior art, advantages of the present invention includes：The green magnanimity of offer prepares boron nitride nanosheet powder
Technique is simple to operation, only need a step can complete react and obtain the crude product of powder shaped, the raw material used be boron oxide with
Carrier (sodium chloride and/or potassium chloride), its have it is cheap, easily buy, green non-pollution, it is soluble in water the advantages that, and
And in raw material boron oxide conversion ratio more than 89%, single batch reaction can easily realize a gram level boron nitride nanosheet powder
Green preparation, the post-processing operation of obtained crude product is simple, green in addition, and handle after obtain target product purity
Up to 99%.
Brief description of the drawings
Fig. 1 is the photo in kind of boron nitride nanosheet crude product of the gained of embodiment 1 without washing.
Fig. 2 obtains the post-treated obtained boron nitride nanosheet material object photo of crude product by embodiment 1.
Fig. 3 is the XRD of the boron nitride nanosheet after the gained of embodiment 1 is washed.
Fig. 4 a- Fig. 4 b are respectively SEM, TEM figure of the big lamella boron nitride nanosheet of the gained of embodiment 1.
Fig. 5 a- Fig. 5 b are respectively SEM, TEM figure of the small lamella boron nitride nanosheet of the gained of embodiment 1.
Fig. 6 is the XRD of the gained boron nitride nanosheet of embodiment 2.
Fig. 7 is the boron nitride nanosheet material object photo that the crude product of embodiment 3 post-processes to obtain.
Fig. 8 is the photo in kind of boron nitride nanosheet crude product of the gained of embodiment 4 without washing.
Fig. 9 is the XRD after the boron nitride nanosheet washing of the gained of embodiment 4.
Figure 10 is that the SEM of the gained boron nitride nanosheet of embodiment 5 schemes.
Embodiment
In view of the deficiencies in the prior art, this programme inventor herein proposes by a large amount of investigations and long felt
Technical scheme, it relates generally to a kind of method that green magnanimity prepares boron nitride nanosheet powder, will given as follows
Describe in detail.
The method that a kind of green magnanimity provided in an embodiment of the present invention prepares boron nitride nanosheet powder includes：
The predecessor being mainly thoroughly mixed to form by boron source and carrier is provided, the boron source includes boron oxide, the carrier
Including sodium chloride and/or potassium chloride；
The predecessor is heated to 700~1100 DEG C, and the insulation reaction in ammonia atmosphere in ammonia atmosphere, afterwards
Room temperature is down in protective atmosphere, obtains crude product, then the crude product is post-processed, obtains the pure boron nitride of magnanimity
Nanometer sheet powder.
More preferable, the mass ratio of the boron source and carrier is 1:3.
More preferable, the boron source is boron oxide.
More preferable, the carrier is sodium chloride and/or potassium chloride.
In some preferred embodiments, described post processing includes：By the crude product with deionized water immersion 30~
After 60min, solid content is isolated, and in 40~60 DEG C of dry 60~120min, obtain the pure boron nitride nanosheet powder of magnanimity
Body.
Wherein, can be filtering, centrifugation etc. to isolate the mode of the solid content, but not limited to this.
Further, the protective atmosphere may be selected from inert atmosphere, such as argon gas atmosphere.
Further, the pure boron nitride nanosheet powder is hexagonal boron nitride nanosheet of the purity more than 99%.
In some embodiments, the environment-friendly preparation method thereof includes：Using the mixture conduct of boron oxide and sodium chloride
Predecessor, obtaining pure boron nitride nanosheet powder includes the hexagonal nanometer boron nitride that arrangement is fine and close, size is 90~120nm
Piece and content are in below 5wt%, hexagonal boron nitride nanosheet that size is 20~50 μm.
In some preferred embodiments, the environment-friendly preparation method thereof includes：Using boron oxide and the mixture of potassium chloride
As predecessor, and it is hexagonal nanometer boron nitride homogeneous, that size is 90~120nm to obtain pure boron nitride nanosheet powder
Piece.
That is, among some embodiments, if using the mixture of boron oxide and sodium chloride as predecessor, six side
Boron nitride nanosheet includes two kinds of patterns：A kind of is the fine and close small lamella of arrangement, and a kind of is thin big lamella；If with boron oxide and
The mixture of potassium chloride is predecessor, and the hexagonal boron nitride nanosheet is homogeneous small nanometer sheet.
In some more specific case study on implementation of the present invention, a kind of green magnanimity prepares boron nitride nanosheet powder
Method comprises the following steps：
(1) boron source and carrier are sufficiently mixed and are used as predecessor, be heated to 700~1100 DEG C in ammonia atmosphere, and
60~180min is incubated, is down to room temperature in the protective atmosphere of argon gas afterwards, you can obtain the crude product of powder.
(2) crude product for being obtained step (1) is washed, filters, dried, and can be obtained boron nitride of the purity more than 99% and be received
Rice piece powder.
By the scheme, ratio, the dosage of regulation and control boron oxide and carrier, pure boron nitride nanosheet powder obtained by single batch
The yield of body can reach more than gram level.
In specific scheme, the preparation method is related to following chemical reaction：
B2O3+2NH3→2BN+3H2O。
Reaction temperature is preferably described in step (1)：1000~1100 DEG C, product crystallinity is preferable.
Washing, filtering described in step (2) are preferably：Add 2~3 deionized waters cleanings again in filter process, can
Improve the degree of purity of boron nitride nanosheet powder.
Drying described in step (2) is preferably：In 60 DEG C of dryings.
The embodiment of the present invention additionally provides the boron nitride nanosheet powder prepared by methods described.
The hexagonal boron nitride nanosheet that nationality is obtained by the inventive method can be applied to Electronic Packaging insulating radiation material, heat conduction
The numerous areas such as oil packing, the heat-conductive insulation filling of composite, lubriation material, drug loading, catalyst carrier.
Technical scheme is said in more detail below in conjunction with accompanying drawing and some more typical embodiments
It is bright：
Embodiment 1 takes 0.3g B2O3It is sufficiently mixed with 0.5g NaCl, is placed in open alumina crucible, is then placed in pipe
In the quartz ampoule of formula stove, 200 standard milliliters/minute (sccm) NH is passed through3, it is warming up to 1100 DEG C.In 1100 DEG C of isothermal reactions
NH is closed after 120min3, 200sccm Ar is passed through, is down to room temperature in an ar atmosphere, takes out gained crude product.Gained is slightly produced
60~120min is dried under 60 DEG C of thing 30~60min of deionized water soaking and washing, vacuum filtration, baking oven environment, purity can be obtained
Boron nitride nanosheet powder more than 99%.Fig. 1 is the boron nitride nanosheet crude product without washing obtained by the present embodiment
Photo in kind.Fig. 2 is the boron nitride nanosheet material object photo that the present embodiment crude product post-processes to obtain.Fig. 3 is the present embodiment institute
The XRD after boron nitride nanosheet washing is obtained, while can confirm that product is hexagonal structure boron nitride.Fig. 4 a- Fig. 4 b are respectively
SEM, TEM figure of boron nitride nanosheet obtained by the present embodiment, it is observed that the boron nitride nanosheet of big lamella.Fig. 5 a- Fig. 5 b
The BNNS obtained for the present embodiment SEM, TEM figure, it is observed that the boron nitride nanosheet of small lamella.
Embodiment 2 takes 0.3g B2O3It is sufficiently mixed with 0.5g NaCl, is placed in open alumina crucible, is then placed in pipe
In the quartz ampoule of formula stove, 200 standard milliliters/minute (sccm) NH is passed through3, it is warming up to 700 DEG C.In 700 DEG C of isothermal reactions
NH is closed after 120min3, 200sccm Ar is passed through, is down to room temperature in an ar atmosphere, takes out gained crude product.Gained is slightly produced
60~120min is dried under 60 DEG C of thing 30~60min of deionized water soaking and washing, vacuum filtration, baking oven environment, purity can be obtained
Boron nitride nanosheet powder more than 99%.Fig. 6 is the XRD of boron nitride nanosheet obtained by the present embodiment.
Embodiment 3 takes 1.2g B2O3Slightly ground through mortar with 8.4g NaCl and be allowed to be sufficiently mixed, be placed in open aluminum oxide
In crucible, it is then placed in the quartz ampoule of tube furnace, is passed through 200 standard milliliters/minute (sccm) NH3, it is warming up to 1100 DEG C.
NH is closed after 1100 DEG C of isothermal reaction 180min3, 200sccm Ar is passed through, is down to room temperature in an ar atmosphere, it is thick to take out gained
Product.Will under 60 DEG C of gained crude product 30~60min of deionized water soaking and washing, vacuum filtration, baking oven environment dry 60~
120min, boron nitride nanosheet powder of the purity more than 99% can be obtained.The conversion ratio of boron oxide is up to 89% in the present embodiment.
Fig. 7 is the boron nitride nanosheet material object photo that the present embodiment crude product post-processes to obtain.
Embodiment 4 takes 0.3g B2O3Slightly ground through mortar with 0.5g NaCl and be allowed to be sufficiently mixed, be placed in open aluminum oxide
In crucible, it is then placed in the quartz ampoule of tube furnace, is passed through 200 standard milliliters/minute (sccm) Ar, be warming up to 700 DEG C, closes
Argon gas is closed, is passed through 200sccm NH3, NH is closed after 700 DEG C of isothermal reaction 120min3, 200sccm Ar is passed through, in Ar gas
Room temperature is down in atmosphere, takes out gained crude product.By gained crude product 30~60min of deionized water soaking and washing, vacuum filtration,
60~120min is dried under 60 DEG C of environment of baking oven, boron nitride nanosheet powder of the purity more than 99% can be obtained.Fig. 8 is this implementation
The photo in kind of boron nitride nanosheet crude product of the example gained without washing.Fig. 9 is boron nitride nanosheet water obtained by the present embodiment
XRD after washing.
Embodiment 5 takes 0.3g B2O3It is sufficiently mixed with 0.5g KCl, is placed in open alumina crucible, is then placed in tubular type
In the quartz ampoule of stove, 200 standard milliliters/minute (sccm) NH is passed through3, it is warming up to 1100 DEG C.In 1100 DEG C of isothermal reactions
NH is closed after 120min3, 200sccm Ar is passed through, is down to room temperature in an ar atmosphere, takes out gained crude product.Gained is slightly produced
60~120min is dried under 60 DEG C of thing 30~60min of deionized water soaking and washing, vacuum filtration, baking oven environment, purity can be obtained
Boron nitride nanosheet powder more than 99%.Figure 10 is the SEM figures of boron nitride nanosheet obtained by the present embodiment.
The above embodiment of the present invention is only to clearly demonstrate example of the present invention, and is not that the present invention is implemented
The restriction of mode, there is no necessity and possibility to exhaust all the enbodiments.To those of ordinary skill in the art,
It can also make other changes in different forms on the basis of the above description.But it is all the present invention spirit and
All any modification, equivalent and improvement made within principle etc., should be included in the claims in the present invention protection domain it
It is interior.
Claims (10)
1. a kind of method that green magnanimity prepares boron nitride nanosheet powder, it is characterised in that including：
The predecessor being mainly thoroughly mixed to form by boron source and carrier is provided, the boron source includes boron oxide, and the carrier includes
Sodium chloride and/or potassium chloride；
The predecessor is heated to 700~1100 DEG C in ammonia atmosphere, and 60~180min is incubated in ammonia atmosphere, it
Room temperature is down in protective atmosphere afterwards, obtains crude product, then the crude product is post-processed, obtains the pure nitridation of magnanimity
Boron nanometer sheet powder.
2. the method that green magnanimity according to claim 1 prepares boron nitride nanosheet powder, it is characterised in that：The boron
The mass ratio of source and carrier is 3:1~1:7.
3. the method that green magnanimity according to claim 1 prepares boron nitride nanosheet powder, it is characterised in that：The boron
Source is boron oxide；And/or the carrier is sodium chloride and/or potassium chloride.
4. the method that the green magnanimity according to any one of claim 1-3 prepares boron nitride nanosheet powder, its feature
It is, described post processing includes：After the crude product is soaked into 30~60min with deionized water, solid content is isolated, and
40~60 DEG C of dry 60~120min, obtain the pure boron nitride nanosheet powder of magnanimity.
5. the method that green magnanimity according to claim 1 prepares boron nitride nanosheet powder, it is characterised in that：The guarantor
Shield atmosphere is selected from inert atmosphere.
6. the method that green magnanimity according to claim 1 prepares boron nitride nanosheet powder, it is characterised in that：It is described pure
Net boron nitride nanosheet powder is hexagonal boron nitride nanosheet of the purity more than 99%.
7. the method that green magnanimity according to claim 1 prepares boron nitride nanosheet powder, it is characterised in that including：Adopt
By the use of the mixture of boron oxide and sodium chloride as predecessor, obtaining pure boron nitride nanosheet powder includes arrangement densification, chi
It is very little be 90~120nm hexagonal boron nitride nanosheet and content in below 5wt%, six sides that size is 20~50 μm nitridation
Boron nanometer sheet.
8. the method that green magnanimity according to claim 1 prepares boron nitride nanosheet powder, it is characterised in that including：Adopt
By the use of the mixture of boron oxide and potassium chloride as predecessor, and obtain pure boron nitride nanosheet powder be size be 90~
120nm hexagonal boron nitride nanosheet.
9. boron nitride nanosheet powder prepared by the method as any one of claim 1-8.
10. boron nitride nanosheet powder described in claim 9 is in preparing Electronic Packaging insulating radiation material, heat conduction oil packing, multiple
Purposes in the heat-conductive insulation filling of condensation material, lubriation material, drug loading material or catalyst carrier.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108439356A (en) * | 2018-05-16 | 2018-08-24 | 武汉科技大学 | A kind of ultrathin boron nitride nanosheet and preparation method thereof |
| CN108483414A (en) * | 2018-04-16 | 2018-09-04 | 武汉科技大学 | One kind is based on molten-salt growth method low temperature synthesis rhombohedral boron nitride powder and preparation method thereof |
| CN110357049A (en) * | 2019-07-25 | 2019-10-22 | 中国科学院兰州化学物理研究所 | A kind of method that ball-milling method prepares boron nitride quantum dot |
| CN111099596A (en) * | 2019-12-30 | 2020-05-05 | 东北石油大学 | Simple method for coating high-hydrophobicity boron nitride nanosheet thin layer on surface of silicon dioxide aerogel particle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6168309A (en) * | 1984-09-12 | 1986-04-08 | Natl Inst For Res In Inorg Mater | Manufacture of rhombohedral boron nitride |
| CN103922295A (en) * | 2014-04-17 | 2014-07-16 | 河北工业大学 | Preparation method of boron nitride nano tube |
| CN104058372A (en) * | 2014-07-09 | 2014-09-24 | 河北工业大学 | Preparation method of hexagonal boron nitride nanosheets |
| CN104860273A (en) * | 2015-03-25 | 2015-08-26 | 孙旭阳 | Method for preparing two-dimensional hexagonal boron nitride by using molten state reaction bed |
| CN105523528A (en) * | 2016-02-23 | 2016-04-27 | 香港城市大学深圳研究院 | Method for preparing boron nitride nanosheet by using eutectic salt to strip boron nitride powder at high temperature |
-
2016
- 2016-07-06 CN CN201610525087.3A patent/CN107585749B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6168309A (en) * | 1984-09-12 | 1986-04-08 | Natl Inst For Res In Inorg Mater | Manufacture of rhombohedral boron nitride |
| CN103922295A (en) * | 2014-04-17 | 2014-07-16 | 河北工业大学 | Preparation method of boron nitride nano tube |
| CN104058372A (en) * | 2014-07-09 | 2014-09-24 | 河北工业大学 | Preparation method of hexagonal boron nitride nanosheets |
| CN104860273A (en) * | 2015-03-25 | 2015-08-26 | 孙旭阳 | Method for preparing two-dimensional hexagonal boron nitride by using molten state reaction bed |
| CN105523528A (en) * | 2016-02-23 | 2016-04-27 | 香港城市大学深圳研究院 | Method for preparing boron nitride nanosheet by using eutectic salt to strip boron nitride powder at high temperature |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108483414A (en) * | 2018-04-16 | 2018-09-04 | 武汉科技大学 | One kind is based on molten-salt growth method low temperature synthesis rhombohedral boron nitride powder and preparation method thereof |
| CN108439356A (en) * | 2018-05-16 | 2018-08-24 | 武汉科技大学 | A kind of ultrathin boron nitride nanosheet and preparation method thereof |
| CN110357049A (en) * | 2019-07-25 | 2019-10-22 | 中国科学院兰州化学物理研究所 | A kind of method that ball-milling method prepares boron nitride quantum dot |
| CN110357049B (en) * | 2019-07-25 | 2022-06-10 | 中国科学院兰州化学物理研究所 | Method for preparing boron nitride quantum dots by ball milling method |
| CN111099596A (en) * | 2019-12-30 | 2020-05-05 | 东北石油大学 | Simple method for coating high-hydrophobicity boron nitride nanosheet thin layer on surface of silicon dioxide aerogel particle |
| CN111099596B (en) * | 2019-12-30 | 2022-09-27 | 东北石油大学 | Simple method for coating high-hydrophobicity boron nitride nanosheet thin layer on surface of silicon dioxide aerogel particle |
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