CN104108688B - The preparation method of a kind of azotized carbon nano band and secondary groups assembling structure thereof - Google Patents
The preparation method of a kind of azotized carbon nano band and secondary groups assembling structure thereof Download PDFInfo
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- CN104108688B CN104108688B CN201410375765.3A CN201410375765A CN104108688B CN 104108688 B CN104108688 B CN 104108688B CN 201410375765 A CN201410375765 A CN 201410375765A CN 104108688 B CN104108688 B CN 104108688B
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Abstract
A preparation method for azotized carbon nano band and secondary groups assembling structure thereof, the preparation method of the azotized carbon nano band of the present invention, comprises the following steps: (1) gets the raw materials ready; (2) heat; (3) be separated; (4) dry.The present invention also comprises the preparation method of azotized carbon nano band secondary groups assembling structure.Present invention process is comparatively simple, and cost is low, and the template used is sodium chloride crystal, can remove by water dissolution easily; The nano belt specific surface area obtained is high, water-soluble very good, good stability, and the aqueous solution can stablize more than 15 days; The nano belt obtained utilizes different alcohol to obtain different secondary groups assembling structures easily, as micro belt, micron bar, micron tube, bouquet and bouquet, the higher structure obtained will have at environmental protection, the energy, national defence and chemical field to be applied more widely.
Description
Technical field
The present invention relates to the preparation method of a kind of azotized carbon nano band and secondary groups assembling structure thereof, particularly one prepares graphite phase carbon nitride (g-C
3n
4) method of nano belt and secondary groups assembling structure thereof.
Background technology
Carbonitride by carbon and two kinds, nitrogen elementary composition, element rich reserves, wide material sources, simple synthetic method, good economy performance and be easy to obtain.Graphite phase carbon nitride (g-C
3n
4) belonging to narrow gap semiconductor, its band gap width is about 2.7eV, nontoxic, not containing metal.Meanwhile, g-C
3n
4also there is the strong and electron transfer rate advantages of higher of good mechanical property, thermostability, acid-alkali-corrosive-resisting (all having good stability the aqueous solution of pH from 0 to 14) and oxidation capacity.Based on above-mentioned advantage, g-C
3n
4can be used as a kind of novel visible light catalyst to use, can be applied in the reactions such as photochemical catalysis, electrocatalysis, organic oxygenation dehydrogenation, simultaneously at other field, as energy transformation, gas storage and catch, the aspect such as purification, solar cell of water pollutant also applies well.
The preparation method that carbonitride is conventional mainly contains hot high pressure solution, vapour deposition process, ion implantation, hydro-thermal or solvent-thermal process method and electrochemical deposition method etc.In recent years, a kind of method of the organic matter precursors such as direct heating condensation polymerization cyanamide, cyanamid dimerization and trimeric cyanamide, becomes the many preparation g-C applied in recent years
3n
4the method of crystal.But block materials specific surface area prepared by these methods is often less than 10m
2/ g, practical ranges is limited.
For this reason, usually consider to introduce the adjustable pore structure in aperture in body phase carbon nitride, or change the nanometer particle size of carbonitride and pattern increases its specific surface area.2005, (" Preparationandcharacterizationofwell-orderedhexagonalmes oporouscarbonnitride " AdvMater such as Vinu, 2005,17:1648) take mesoporous SBA-15 as hard template, prepare the carbonitride MCN-1 with ordered mesopore structure, but porous g-C
3n
4after synthesis, need to remove hard template, often need HF or NH using severe toxicity
4hF
2, larger to the injury of human body.Except vesicular structure, also can utilize space confinement method, synthesis smashes method, hot stripping method, solvent stripping method etc. and prepare the carbonitride quantum dot of a series of different-shape, nano wire, nanotube, nano belt, nanometer rod, nano particle, nanometer ball, nano-cluster (see " preparations and applicatio of high-specific surface area greying carbonitride ", petroleum journal, 2014,30:158).Such as, (" Condensedgraphiticcarbonnitridenanorodsbynanoconfinement: the Promotionofcrystallinityonphotocatalyticconversion " ChemMater such as Li, 2011,23:4344) using anodised aluminium as template, nitrile amine is presoma, prepared the azotized carbon nano rod of high-crystallinity and photocatalysis performance by confinement thermal polycondensation; The people such as Yang (" Synthesisandcharacterizationofnitrogen-richcarbonnitride nanobeltsbypyrolysisofmelamine " ApplPhysA, 2011,105:161) utilize trimeric cyanamide for presoma, obtain the nano strip product of fiber morphology respectively at 700 DEG C, 1000 DEG C two-step processes; The people such as Zhao (" Large-scalesynthesisofnitrogen-richcarbonnitridemicrofib ersbyusinggraphiticcarbonnitrideasprecursor " AdvMater, 2008,20:1777) utilize carbonitride to prepare the macrofiber of diameter close to micron being slowly warming up to 680 DEG C for presoma; (" Synthesisandcharacterizationofgraphite-likecarbonnitride nanobeltsandnanotubes " Nanotechnology such as Li, 2007,18:1) with Dicyanodiamide and trimeric cyanamide for presoma, 290 DEG C, obtain nano belt, nanotube-shaped product under the condition of 4.5 ~ 5MPa.
The preparation method of existing azotized carbon nano structure make use of the stability of ring texture carbonitride all to a certain extent, or constructs nanostructure by template, or utilizes its distillation restructuring characteristics Growth nanostructure.But, in method for preparing template, remove difficulty as hard template silicon oxide; In growth preparation method, the nanostructure of high growth temperature is difficult to carry out secondary assembling again, is difficult to construct more senior nanostructure.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the deficiencies in the prior art, provides a kind of template to remove the preparation method of easier azotized carbon nano band and secondary groups assembling structure thereof, and the nano belt assembling of gained is easier to.
The technical scheme that the present invention solves the employing of its technical problem is:
The preparation method of the azotized carbon nano band of the present invention, comprises the following steps:
(1) get the raw materials ready: weigh trimeric cyanamide and sodium chloride crystal in proportion, wherein trimeric cyanamide and sodium chloride crystal mass ratio are preferred 1:2 ~ 3 of 1:1 ~ 5(); Trimeric cyanamide and sodium chloride crystal are placed in mortar, the preferred 15-20min of grinding 10 ~ 30min() make mixture all by 400 ~ 600 orders (preferred 450-550 order) sieve;
(2) heat: the mixture that step (1) is sieved is placed in porcelain boat, be placed in tube furnace, with 1 ~ 10ml/min(preferably 2 ~ 6ml/min, more preferably 3-4ml/min) flow velocity lead to nitrogen, with 1 ~ 30 DEG C/min(preferably 5 ~ 20 DEG C/min, more preferably 8-15 DEG C/min) temperature rise rate be raised to 400 ~ 700 DEG C (preferably 500 ~ 600 DEG C) and be incubated 1 ~ 2h, be chilled to room temperature with stove;
(3) be separated: step (2) products therefrom is placed in mortar, grinding 5 ~ 30min makes mixture all by 400 ~ 600 mesh sieve, be dissolved in again in deionized water, with the preferred 700-800rpm of 500 ~ 1000rpm() centrifugation rate removing precipitation, use molecular weight is dialysis tubing dialysis 24 ~ 48h removing sodium-chlor of 500 ~ 3000, obtains the aqueous solution containing nano belt;
(4) dry: by step (3) obtained aqueous solution at-40 ~-10 DEG C of preferred 20-30h of lyophilize 10 ~ 48h() to constant weight, obtain azotized carbon nano band.
The preparation method of the azotized carbon nano band secondary groups assembling structure of the present invention, comprises the following steps:
(1) get the raw materials ready: weigh trimeric cyanamide and sodium chloride crystal in proportion, wherein trimeric cyanamide and sodium chloride crystal mass ratio are 1:1 ~ 5; Trimeric cyanamide and sodium chloride crystal are placed in mortar, and grinding 10 ~ 30min makes mixture all by 400 ~ 600 mesh sieve;
(2) heat: the mixture that step (1) is sieved is placed in porcelain boat, be placed in tube furnace, with 1 ~ 10ml/min(preferably 3 ~ 6ml/min) flow velocity lead to nitrogen, with 1 ~ 30 DEG C/min(preferably 5 ~ 20 DEG C/min) temperature rise rate be raised to 400 ~ 700 DEG C (preferably 500 ~ 600 DEG C) and be incubated 1 ~ 2h, be chilled to room temperature with stove;
(3) be separated: step (2) products therefrom is placed in mortar, grinding 5 ~ 30min makes mixture all by 400 ~ 600 mesh sieve, be dissolved in deionized water, with the centrifugation rate of 500 ~ 1000rpm removing precipitation, use molecular weight is dialysis tubing dialysis 24 ~ 48h removing sodium-chlor of 500 ~ 3000, obtains the aqueous solution containing nano belt;
(4) assembling is with dry: in step (3) obtained aqueous solution, drip the alkyl alcohol being equivalent to aqueous solution volume 0.5 ~ 2 times, be precipitated thing, throw out is placed in baking oven, at 50 ~ 100 DEG C of drying 1 ~ 24h to constant weight, carbonitride secondary groups assembling structure can be obtained.
In step (4), the one in described alkyl alcohol particular methanol, ethanol, propyl alcohol, propyl carbinol, Virahol, 3-amylalcohol.
Gained nanometer bandwidth of the present invention 80 ~ 120nm, its secondary groups assembling structure comprises micro belt, micron bar, micron tube, bouquet and bouquet.Use different alcohol, different secondary groups assembling structures can be obtained: use methyl alcohol, ethanol, obtain micro belt; Use propyl alcohol, obtain bouquet; Use propyl carbinol, obtain bouquet; Use Virahol, obtain micron tube; Use 3-amylalcohol, obtain micron bar.
The present invention has following outstanding advantages:
(1) template used selects sodium chloride crystal, and technique is comparatively simple, and cost is low, can remove by water dissolution easily;
(2) high (90 ~ 160m of nano belt specific surface area obtained
2/ g), water-soluble very good, good stability, the aqueous solution can stablize more than 15 days;
(3) nano belt obtained utilizes different alcohol to obtain different secondary groups assembling structures, as micro belt, micron bar, micron tube, bouquet and bouquet easily;
(4) higher structure obtained will have at environmental protection, the energy, national defence and chemical field to be applied more widely.
Accompanying drawing explanation
Fig. 1 is the scanning electron microscope (SEM) photograph of the embodiment of the present invention 1 obtained " nano belt ";
Fig. 2 is the transmission electron microscope picture of the embodiment of the present invention 1 obtained " nano belt ";
Fig. 3 is the scanning electron microscope (SEM) photograph that the embodiment of the present invention 10 obtains secondary groups assembling structure " micro belt ";
Fig. 4 is the scanning electron microscope (SEM) photograph that the embodiment of the present invention 12 obtains secondary groups assembling structure " bouquet ";
Fig. 5 is the scanning electron microscope (SEM) photograph that the embodiment of the present invention 14 obtains secondary groups assembling structure " bouquet ";
Fig. 6 is the scanning electron microscope (SEM) photograph that the embodiment of the present invention 17 obtains secondary groups assembling structure " micron tube ";
Fig. 7 is the scanning electron microscope (SEM) photograph that the embodiment of the present invention 19 obtains secondary groups assembling structure " micron bar ".
Embodiment
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
[embodiment 1-9 is the embodiment of preparation nano belt]
embodiment 1
The preparation method of the azotized carbon nano band of the present embodiment, comprises the following steps:
(1) get the raw materials ready: weigh trimeric cyanamide 1g, sodium chloride crystal 3g(and trimeric cyanamide and sodium chloride crystal mass ratio are 1:3), be placed in mortar, grinding 15min makes mixture all by 500 mesh sieve;
(2) heat: the mixture that step (1) is sieved is placed in porcelain boat, is placed in tube furnace, lead to nitrogen with the flow velocity of 4ml/min, be raised to 550 DEG C with the temperature rise rate of 10 DEG C/min and be incubated 2h, being chilled to room temperature with stove;
(3) be separated: step (2) products therefrom is placed in mortar, grinding 10min makes mixture all by 500 mesh sieve, be dissolved in 50ml deionized water, with the centrifugation rate of 800rpm removing precipitation, use molecular weight is the dialysis tubing dialysis 30h removing sodium-chlor of 1500, obtains the 50ml aqueous solution containing nano belt;
(4) dry: by step (3) obtained aqueous solution at-30 DEG C of lyophilize 24h to constant weight, azotized carbon nano band can be obtained.
The present embodiment gained azotized carbon nano bandwidth 90 ~ 100nm, specific surface area is 120m
2/ g, productive rate is 86wt%.Its scanning electron microscope (SEM) photograph as shown in Figure 1; Its transmission electron microscope picture as shown in Figure 2.
embodiment 2
Only be with the difference of embodiment 1, in the present embodiment, trimeric cyanamide and sodium chloride crystal mass ratio are 1:1, and namely weigh trimeric cyanamide 1g in step (1), sodium chloride crystal 1g, all the other are identical with embodiment 1.
The present embodiment gained azotized carbon nano bandwidth 90 ~ 100nm, specific surface area is 90m
2/ g, productive rate is 60wt%.
embodiment 3
Only be with the difference of embodiment 1, in the present embodiment, trimeric cyanamide and sodium chloride crystal mass ratio are 1:5, and namely weigh trimeric cyanamide 1g in step (1), sodium chloride crystal 5g, all the other are identical with embodiment 1.
The present embodiment gained azotized carbon nano bandwidth 90 ~ 100nm, specific surface area is 105m
2/ g, productive rate is 73wt%.
embodiment 4
Only be with the difference of embodiment 1, in the present embodiment, all by 400 mesh sieve in step (1), step (3), all the other are identical with embodiment 1.
The present embodiment gained azotized carbon nano bandwidth 90 ~ 110nm, specific surface area is 114m
2/ g, productive rate is 80wt%.
embodiment 5
Only be with the difference of embodiment 1, in the present embodiment, all by 600 mesh sieve in step (1), step (3), all the other are identical with embodiment 1.
The present embodiment gained azotized carbon nano bandwidth 80 ~ 100nm, specific surface area is 118m
2/ g, productive rate is 76wt%.
embodiment 6
Only be with the difference of embodiment 1, in the present embodiment, step (2) leads to nitrogen with the flow velocity of 10ml/min, is raised to 700 DEG C and is incubated 1h with the temperature rise rate of 30 DEG C/min, and all the other are identical with embodiment 1.
The present embodiment gained azotized carbon nano bandwidth 90 ~ 100nm, specific surface area is 95m
2/ g, productive rate is 50wt%.
embodiment 7
Only be with the difference of embodiment 1, in the present embodiment, step (2) leads to nitrogen with the flow velocity of 1ml/min, is raised to 400 DEG C and is incubated 2h with the temperature rise rate of 1 DEG C/min, and all the other are identical with embodiment 1.
The present embodiment gained azotized carbon nano bandwidth 90 ~ 100nm, specific surface area is 101m
2/ g, productive rate is 70wt%.
embodiment 8
Only be with the difference of embodiment 1, in the present embodiment, step (3) is with the centrifugation rate of 1000rpm removing precipitation, and use molecular weight is the dialysis tubing dialysis 48h removing sodium-chlor of 3000, and all the other are identical with embodiment 1.
The present embodiment gained azotized carbon nano bandwidth 90 ~ 100nm, specific surface area is 110m
2/ g, productive rate is 45wt%.
embodiment 9
Only be with the difference of embodiment 1, in the present embodiment, step (3) precipitates with the removing of the centrifugation rate of 500rpm, use molecular weight is the dialysis tubing dialysis 24h removing sodium-chlor of 500, and all the other are identical with embodiment 1.
The present embodiment gained azotized carbon nano bandwidth 100 ~ 120nm, specific surface area is 99m
2/ g, productive rate is 89wt%.
[embodiment 10-19 is the embodiment of preparation secondary groups assembling structure]
embodiment 10
The preparation method of the carbonitride micro belt of the present embodiment, comprises the following steps:
Step (1), (2), (3) and embodiment 1 step (1), (2), (3) are identical.
Step (4) assembling is with dry: in step (3) the gained 50ml aqueous solution, drip methyl alcohol 50ml, be precipitated thing, throw out is placed in baking oven, at 70 DEG C of dry 12h to constant weight.
The present embodiment gained azotized carbon nano band secondary groups assembling structure is micro belt, wide 0.5 ~ 1.0mm.Its scanning electron microscope (SEM) photograph as shown in Figure 3.
embodiment 11
The preparation method of the carbonitride micro belt of the present embodiment, comprises the following steps:
Step (1), (2), (3) and embodiment 2 step (1), (2), (3) are identical.
Step (4) assembling is with dry: drip ethanol 25ml to step (3) the gained 50ml aqueous solution, be precipitated thing, throw out is placed in baking oven, at 50 DEG C of dry 24h to constant weight.
The present embodiment gained azotized carbon nano band secondary groups assembling structure is micro belt, wide 0.6 ~ 1.1mm.
embodiment 12
The preparation method of the carbonitride bouquet of the present embodiment, comprises the following steps:
Step (1), (2), (3) and embodiment 3 step (1), (2), (3) are identical.
Step (4) assembling is with dry: in step (3) the gained 50ml aqueous solution, drip propyl alcohol 75ml, be precipitated thing, throw out is placed in baking oven, at 100 DEG C of dry 1h to constant weight.
The present embodiment gained azotized carbon nano band secondary groups assembling structure is bouquet, corolla diameter 5.0 ~ 20.0mm.Its scanning electron microscope (SEM) photograph as shown in Figure 4.
embodiment 13
Only be with the difference of embodiment 10, in step (4), in step (3) the gained 50ml aqueous solution, drip propyl alcohol 100ml, all the other are identical with embodiment 10.
The present embodiment gained azotized carbon nano band secondary groups assembling structure is bouquet, corolla diameter 4.0 ~ 24.0mm.
embodiment 14
The preparation method of the carbonitride bouquet of the present embodiment, comprises the following steps:
Step (1), (2), (3) and embodiment 5 step (1), (2), (3) are identical.
Step (4) assembling is with dry: drip propyl carbinol 75ml to step (3) the gained 50ml aqueous solution, be precipitated thing, throw out is placed in baking oven, at 90 DEG C of dry 10h to constant weight.
The present embodiment gained azotized carbon nano band secondary groups assembling structure is bouquet, bouquet diameter 30.0 ~ 50.0mm.Its scanning electron microscope (SEM) photograph is as shown in Figure 5.
embodiment 15
Only be with the difference of embodiment 10, in step (4), in step (3) the gained 50ml aqueous solution, drip propyl carbinol 65ml, all the other are identical with embodiment 10.
The present embodiment gained azotized carbon nano band secondary groups assembling structure is bouquet, bouquet diameter 35.0 ~ 45.0mm.
embodiment 16
The preparation method of the carbonitride bouquet of the present embodiment, comprises the following steps:
Step (1), (2), (3) and embodiment 7 step (1), (2), (3) are identical.
Step (4) assembling is with dry: in step (3) the gained 50ml aqueous solution, drip propyl carbinol 80ml, be precipitated thing, throw out is placed in baking oven, at 60 DEG C of dry 20h to constant weight.
The present embodiment gained azotized carbon nano band secondary groups assembling structure is bouquet, bouquet diameter 30.0 ~ 40.0mm.
embodiment 17
Only be with the difference of embodiment 10, in step (4), in step (3) the gained 50ml aqueous solution, drip Virahol 40ml, other are identical with embodiment 10.
The present embodiment gained azotized carbon nano band secondary groups assembling structure is micron tube, diameter 3.0 ~ 5.0mm.Its scanning electron microscope (SEM) photograph as shown in Figure 6.
embodiment 18
The preparation method of the carbonitride micron tube of the present invention, comprises the following steps:
Step (1), (2), (3) and embodiment 6 step (1), (2), (3) are identical.
Step (4) assembling is with dry: in step (3) the gained 50ml aqueous solution, drip Virahol 80ml, be precipitated thing, throw out is placed in baking oven, at 90 DEG C of dry 2h to constant weight.
The present embodiment gained azotized carbon nano band secondary groups assembling structure is micron tube, diameter 3.0 ~ 4.5mm.
embodiment 19
The preparation method of the carbonitride micron bar of the present embodiment, comprises the following steps:
Step (1), (2), (3) and embodiment 9 step (1), (2), (3) are identical.
Step (4) assembling is with dry: in step (3) the gained 50ml aqueous solution, drip 3-amylalcohol 30ml, be precipitated thing, throw out is placed in baking oven, at 80 DEG C of dry 5h to constant weight.
The present embodiment gained azotized carbon nano band secondary groups assembling structure is micron bar, diameter 0.5 ~ 2.0mm.Its scanning electron microscope (SEM) photograph as shown in Figure 7.
embodiment 20
The preparation method of the carbonitride micron bar of the present embodiment, comprises the following steps:
Step (1), (2), (3) and embodiment 9 step (1), (2), (3) are identical.
Step (4) assembling is with dry: in step (3) the gained 50ml aqueous solution, drip 3-amylalcohol 70ml, be precipitated thing, throw out is placed in baking oven, at 100 DEG C of dry 1h to constant weight.
The present embodiment gained azotized carbon nano band secondary groups assembling structure is micron bar, diameter 0.5 ~ 1.5mm.
Below be only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, conceives various process programs without substantial differences all in protection scope of the present invention with the present invention.
Claims (10)
1. a preparation method for azotized carbon nano band, is characterized in that, comprises the following steps:
(1) get the raw materials ready: weigh trimeric cyanamide and sodium chloride crystal in proportion, wherein trimeric cyanamide and sodium chloride crystal mass ratio are 1:1 ~ 5; Trimeric cyanamide and sodium chloride crystal are placed in mortar, and grinding 10 ~ 30min makes mixture all by 400 ~ 600 mesh sieve;
(2) heat: the mixture that step (1) is sieved is placed in porcelain boat, is placed in tube furnace, lead to nitrogen with the flow velocity of 1 ~ 10ml/min, be raised to 400 ~ 700 DEG C with the temperature rise rate of 1 ~ 30 DEG C/min and be incubated 1 ~ 2h, being chilled to room temperature with stove;
(3) be separated: step (2) products therefrom is placed in mortar, grinding 5 ~ 30min makes mixture all by 400 ~ 600 mesh sieve, be dissolved in again in deionized water, with the centrifugation rate of 500 ~ 1000rpm removing precipitation, use molecular weight is dialysis tubing dialysis 24 ~ 48h removing sodium-chlor of 500 ~ 3000, obtains the aqueous solution containing nano belt;
(4) dry: by step (3) obtained aqueous solution at-40 ~-10 DEG C of lyophilize 10 ~ 48h to constant weight, obtain azotized carbon nano band.
2. the preparation method of azotized carbon nano band according to claim 1, is characterized in that, in step (2), the flow velocity passing into nitrogen is 2 ~ 6ml/min.
3. the preparation method of azotized carbon nano band according to claim 1 and 2, is characterized in that, in step (2), temperature rise rate is 5 ~ 20 DEG C/min.
4. the preparation method of azotized carbon nano band according to claim 1 and 2, is characterized in that, in step (2), is warmed up to 500 ~ 600 DEG C.
5. a preparation method for azotized carbon nano band secondary groups assembling structure, is characterized in that, comprise the following steps:
(1) get the raw materials ready: weigh trimeric cyanamide and sodium chloride crystal in proportion, wherein trimeric cyanamide and sodium chloride crystal mass ratio are 1:1 ~ 5; Trimeric cyanamide and sodium chloride crystal are placed in mortar, and grinding 10 ~ 30min makes mixture all by 400 ~ 600 mesh sieve;
(2) heat: the mixture that step (1) is sieved is placed in porcelain boat, is placed in tube furnace, lead to nitrogen with the flow velocity of 1 ~ 10ml/min, be raised to 400 ~ 700 DEG C with the temperature rise rate of 1 ~ 30 DEG C/min and be incubated 1 ~ 2h, being chilled to room temperature with stove;
(3) be separated: step (2) products therefrom is placed in mortar, grinding 5 ~ 30min makes mixture all by 400 ~ 600 mesh sieve, be dissolved in deionized water, with the centrifugation rate of 500 ~ 1000rpm removing precipitation, use molecular weight is dialysis tubing dialysis 24 ~ 48h removing sodium-chlor of 500 ~ 3000, obtains the aqueous solution containing nano belt;
(4) assembling is with dry: in step (3) obtained aqueous solution, drip the alkyl alcohol being equivalent to aqueous solution volume 0.5 ~ 2 times, be precipitated thing, throw out is placed in baking oven, at 50 ~ 100 DEG C of drying 1 ~ 24h to constant weight, obtain carbonitride secondary groups assembling structure.
6. the preparation method of azotized carbon nano band secondary groups assembling structure according to claim 5, is characterized in that, in step (4), described alkyl alcohol is the one in methyl alcohol, ethanol, propyl alcohol, propyl carbinol, Virahol, 3-amylalcohol.
7. the preparation method of the azotized carbon nano band secondary groups assembling structure according to claim 5 or 6, is characterized in that, use different alcohol, obtain different secondary groups assembling structures: use methyl alcohol, ethanol, obtain micro belt; Use propyl alcohol, obtain bouquet; Use propyl carbinol, obtain bouquet; Use Virahol, obtain micron tube; Use 3-amylalcohol, obtain micron bar.
8. the preparation method of the secondary groups assembling structure of the azotized carbon nano band according to claim 5 or 6, is characterized in that, in step (2), the flow velocity passing into nitrogen is 3 ~ 6ml/min.
9. the preparation method of the secondary groups assembling structure of the azotized carbon nano band according to claim 5 or 6, is characterized in that, in step (2), temperature rise rate is 5 ~ 20 DEG C/min.
10. the preparation method of the secondary groups assembling structure of the azotized carbon nano band according to claim 5 or 6, is characterized in that, in step (2), is warmed up to 500 ~ 600 DEG C.
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