CN104828781A - Eggshell-shaped porous Bi4O5Br2Preparation method of nano material - Google Patents
Eggshell-shaped porous Bi4O5Br2Preparation method of nano material Download PDFInfo
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- 239000002086 nanomaterial Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 102000002322 Egg Proteins Human genes 0.000 claims abstract description 33
- 108010000912 Egg Proteins Proteins 0.000 claims abstract description 33
- 210000003278 egg shell Anatomy 0.000 claims abstract description 30
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- 239000008367 deionised water Substances 0.000 claims abstract description 20
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 20
- 239000002243 precursor Substances 0.000 claims abstract description 15
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000000137 annealing Methods 0.000 claims abstract description 3
- PPNKDDZCLDMRHS-UHFFFAOYSA-N dinitrooxybismuthanyl nitrate Chemical compound [Bi+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PPNKDDZCLDMRHS-UHFFFAOYSA-N 0.000 claims description 20
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 9
- 238000002604 ultrasonography Methods 0.000 claims description 8
- 239000006059 cover glass Substances 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 6
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000002244 precipitate Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 239000008139 complexing agent Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 15
- 239000002994 raw material Substances 0.000 abstract description 6
- 150000001621 bismuth Chemical class 0.000 abstract description 2
- 238000005580 one pot reaction Methods 0.000 abstract description 2
- 239000003960 organic solvent Substances 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 238000005054 agglomeration Methods 0.000 abstract 1
- 230000002776 aggregation Effects 0.000 abstract 1
- 230000003115 biocidal effect Effects 0.000 abstract 1
- 238000006555 catalytic reaction Methods 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 238000011049 filling Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000008399 tap water Substances 0.000 description 5
- 235000020679 tap water Nutrition 0.000 description 5
- 238000007669 thermal treatment Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 241000287828 Gallus gallus Species 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 3
- 210000004681 ovum Anatomy 0.000 description 3
- 239000011941 photocatalyst Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- -1 bismuthino Chemical group 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 238000000634 powder X-ray diffraction Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 241000405217 Viola <butterfly> Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001622 bismuth compounds Chemical class 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
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- OMFXVFTZEKFJBZ-HJTSIMOOSA-N corticosterone Chemical compound O=C1CC[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@H](CC4)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 OMFXVFTZEKFJBZ-HJTSIMOOSA-N 0.000 description 1
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- 229910052736 halogen Inorganic materials 0.000 description 1
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- 229910052740 iodine Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
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- MECHNRXZTMCUDQ-RKHKHRCZSA-N vitamin D2 Chemical compound C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)/C=C/[C@H](C)C(C)C)=C\C=C1\C[C@@H](O)CCC1=C MECHNRXZTMCUDQ-RKHKHRCZSA-N 0.000 description 1
- 235000001892 vitamin D2 Nutrition 0.000 description 1
- 239000011653 vitamin D2 Substances 0.000 description 1
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- Inorganic Compounds Of Heavy Metals (AREA)
- Catalysts (AREA)
Abstract
The invention discloses an eggshell-shaped porous Bi4O5Br2A method for preparing nano material. The invention adopts two steps of technological processes of ultrasonic chemistry technology and heat treatment to prepare eggshell-shaped porous Bi4O5Br2And (3) nano materials. Firstly, soluble bismuth salt, hexadecyl trimethyl ammonium bromide and deionized water are used as raw materials, and a precursor compound is prepared through one-pot ultrasonic chemical reaction after the raw materials are fully stirred and dissolved; then annealing the precursor compound to prepare eggshell-shaped porous Bi4O5Br2And (3) nano materials. The invention discloses eggshell-shaped porous Bi4O5Br2The nano material is of a hollow hierarchical structure, is similar to an eggshell, has no agglomeration and good dispersibility, the diameter of an opening end is 500-800 nm, the thickness of the shell is about 20nm, a large number of pores are formed on the surface, and the specific surface area is large. The method does not use organic solvent, and the process is clean and friendly; the prepared nano material can be used in the fields of visible light catalysis, antibiosis and the like.
Description
Technical field
The invention belongs to the preparing technical field of inorganic functional material, specifically, relate to a kind of eggshell state porous Bi
4o
5br
2the preparation method of nano material.
Background technology
Nano material is because of its distinctive function and character, and the numerous areas such as, magnetic optical, electrical in nanometer has important effect.The morphological structure of nano material, size of particles and its physical and chemical performance are closely related, and the micro Nano material with unique morphology structure shows superior physical and chemical performance usually, are more and more subject to people and pay much attention to.The hollow micro-nano structured material of hierarchy, because having photoelectricity and the surface property of larger specific surface area, lower density, excellent perviousness and uniqueness, is one of nanometer material science study hotspot always.
Ternary bismuthino oxyhalogenide (Bi
vo
vIx
vII, X=Cl, Br, I) and be the important semiconductor material of cluster, all have a wide range of applications in photo-thermal, photoelectricity, sensor, superconduction, solar cell, lithium cell and photocatalyst etc.Because the semi-conductor energy level bandwidth of bismuthino oxyhalogenide is generally between 2.1 ~ 2.9eV, there is visible response performance, in degradation of contaminant, present excellent performance as visible light catalyst in recent years.Except BiOX compound, the high-order compound of the poor halogen of some oxygen enrichments, as Bi
12o
15cl
6, Bi
3o
4cl, Bi
4o
5br
2, Bi
5o
7i, Bi
7o
9i
3and Bi
24o
31br
10deng, because of containing different element chemistries metering ratio, effectively have adjusted the energy level bandwidth of semi-conductor, thus embody material composition and wait physical and chemical performance with the optical, electrical of structure regulating.Prepare the ternary oxyhalogen bismuth compound of these high-order different chemicals metering ratio traditionally, be all at high temperature obtained by vapour deposition process, temperature is usually above 600 DEG C.Gas phase deposition technology needs complex precise and the plant and instrument of costliness, in the middle of preparation, sometimes also use some poisonous gases if HBr etc. is as raw material.With regard to the oxygen enrichment compound Bi of ternary high-order
4o
5br
2semiconductor material, Keller etc. first reported its crystalline structure, are monoclinic phase, P2
1(4) spacer, unit cell parameters is a=14.539S4, b=5.605S1,
β=97.75 (7) °, Z=4 (Keller E., Ketterer J.,
v., Zeitschrift f ü r Kristallographie, 2001,216 (11): 595-599); Recently, Chen etc. adopt hydrothermal technique to obtain semi-conductor Bi
4o
5br
2photocatalyst, visible light catalytic experiment shows that catalyzer has performance (Chen, H.L., the Lee W.W. of superior degradable organic pollutant Viola crystallina (Crystal Violet) dyestuff, Chung, W.H., Lin, H.P., Chen, Y.J., Jiang, Y.R., Lin, W.Y., Chen, C.C, Journal of the Taiwan Institute of Chemical Engineers, 2014, inpress).With regard to literature survey, about the semi-conductor Bi of pure phase
4o
5br
2the research of photocatalyst is still considerably deficient, therefore, develops the oxygen enrichment compound Bi of ternary that a kind of simple and direct efficient controlled synthesis pure phase has unique morphology structure
4o
5br
2semiconductor light-catalyst is still a challenging job.
Summary of the invention
The object of the invention is to for the oxygen enrichment compound Bi of current ternary
4o
5br
2the wretched insufficiency of nano material and technology of preparing thereof, provides a kind of eggshell state porous Bi
4o
5br
2the simple preparation method of nano material, its technique is simple, and raw material is easy to get, and cost is low, and output is high, and obtained nano material has huge application prospect utilizing in visible ray or solar radiation photocatalytic degradation environmental pollutant.
The object of the invention is to realize by following technical solution.
Technical scheme of the present invention adopts sonochemistry technology and thermal treatment two-step process process to prepare porous Bi
4o
5br
2nano material.Wherein sonochemistry process is for raw material with soluble bismuth salt, cetyl trimethylammonium bromide (CTAB) and deionized water, through the reaction of " one pot " sonochemistry after abundant stirring and dissolving, obtained a kind of precursor compound (called after BOBP); Again this presoma compd B OBP is passed through anneal, thus obtained eggshell state porous Bi
4o
5br
2nano material.Its concrete technology step is described as follows:
S1 takes 0.4mmol five water Bismuth trinitrate Bi (NO
3)
35H
2o deionized water and stirring is hydrolyzed into Sol A;
S2 takes a certain amount of cetyl trimethylammonium bromide (CTAB) and is mixed with solution B with deionized water, and the mol ratio of five water Bismuth trinitrates and CTAB is 1:1 ~ 1:2;
S3 takes 10mmol complexing agent thiocarbamide (Tu) again and is mixed with solution C with deionized water;
S4 under agitation, successively solution B is added Sol A in, then solution C joined in A, B mixed reaction solution, overall solution volume is 60mL, continues stirring 10 minutes;
Mixed reaction solution is transferred in the blue cover glass bottle of 100mL by S5, be placed in the ultrasonic cleaner filling tap water, the temperature of ultra sonic bath is arranged between 60 ~ 90 DEG C, ultrasound wave irradiation time controling, at 20 ~ 60 minutes, after reaction terminates, takes out and naturally cools to room temperature, filtering precipitate, use water and absolute ethanol washing 2 ~ 3 times respectively, throw out being placed in temperature is 60 DEG C of baking ovens heating 6 ~ 10 hours, collects purple product and is precursor B OBP;
S6, by precursor B OBP heating 1 ~ 2 hour in the retort furnace of temperature between 450 ~ 480 DEG C in air atmosphere, namely obtains eggshell state porous Bi of the present invention
4o
5br
2nano material.
In technique scheme, described eggshell state porous Bi
4o
5br
2nano material is the hierarchy of hollow, similar eggshell state, soilless sticking, good dispersity, and port diameter is between 500 ~ 800nm, and thickness of the shell is about 20nm, there is a large amount of holes on the surface, has larger specific surface area.
Five water Bismuth trinitrates in described step S2 and the mol ratio of CTAB are 1:1.375.
Bath temperature in described step S5 is 80 DEG C; The ultrasound wave irradiation time is 30 minutes.
Annealing temperature in described step S6 is 460 DEG C, and heat-up time is 2 hours.
Described preparation technology's equipment is simple, and envrionment temperature is low, easy and simple to handle, reproducible; Do not adopt organic solvent, environmental friendliness cleans; Product yield is high, good crystallinity; Raw material is easy to get, with low cost, and suitability for industrialized is produced.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 eggshell state porous Bi
4o
5br
2x-ray powder diffraction analysis (XRD) spectrogram of porous nanometer material;
Fig. 2 is the embodiment of the present invention 1 eggshell state porous Bi
4o
5br
2low power field scan electron microscope (SEM) photo of nano material;
Fig. 3 is the embodiment of the present invention 1 eggshell state porous Bi
4o
5br
2high power field scan electron microscope (SEM) photo of nano material;
Fig. 4 is the embodiment of the present invention 1 eggshell state porous Bi
4o
5br
2transmission electron microscope (TEM) photo of nano material.
Embodiment
Below by way of specific embodiment, description detailed complete is further done to technical scheme of the present invention.Following embodiment further illustrates of the present invention, and do not limit the scope of the invention.
Embodiment 1
Eggshell state porous Bi of the present invention
4o
5br
2nano material adopts sonochemistry technology and thermal treatment two-step process to prepare, and its concrete technology step is as follows:
S1 takes 1.940g five water Bismuth trinitrate Bi (NO
3)
35H
2o 10mL deionized water and stirring is hydrolyzed into Sol A;
S2 takes 0.2001g cetyl trimethylammonium bromide (CTAB) and is mixed with solution B with 20mL deionized water, and the mol ratio of five water Bismuth trinitrates and CTAB is 1:1.375;
S3 takes 0.7612g thiocarbamide (Tu) again and is mixed with solution C with 30mL deionized water;
S4 under agitation, successively solution B is added Sol A in, then solution C to be joined in A, B mixed reaction solution, continues stirring 10 minutes;
Mixed reaction solution is transferred in the blue cover glass bottle of 100mL by S5, be placed in the ultrasonic cleaner filling tap water, the temperature of ultra sonic bath is at 80 DEG C, the ultrasound wave irradiation time, at 30 minutes, after reaction terminates, takes out and naturally cools to room temperature, filtering precipitate, use water and absolute ethanol washing 2 ~ 3 times respectively, throw out being placed in temperature is 60 DEG C of baking ovens heating 8 hours, collects purple product and is precursor B OBP;
Precursor B OBP heats 2 hours by S6 in air atmosphere in 460 DEG C of retort furnaces, namely obtains eggshell state porous Bi of the present invention
4o
5br
2nano material.
See accompanying drawing 1, by the eggshell state porous Bi that the method described in embodiment 1 is obtained
4o
5br
2x-ray powder diffraction analysis (XRD) spectrogram of nano material.In figure, all diffraction crystal face one_to_one corresponding of spectral line peak position and JCPDF standard card (37-3699), are all designated as the Bi of monoclinic phase
4o
5br
2crystal, spacer P2
1/ 4, lattice parameter
β=97.6 °.Do not find impure diffraction peak, illustrate that obtained is pure Bi
4o
5br
2crystal, diffraction peak has obvious broadening, shows that particle diameter is less.
See accompanying drawing 2, by the eggshell state porous Bi that the method described in embodiment 1 is obtained
4o
5br
2low power field scan Electronic Speculum (SEM) photo of nano material.As can be seen from the figure eggshell state porous Bi
4o
5br
2nano material output is high, spherical in open semi, good dispersity, soilless sticking, even particle size distribution.
See accompanying drawing 3, by the eggshell state porous Bi that the method described in embodiment 1 is obtained
4o
5br
2high power field scan Electronic Speculum (SEM) photo of nano material.As can be seen from the figure eggshell state porous Bi
4o
5br
2nano material is the hierarchy of hollow, and port diameter is between 500 ~ 800nm, and thickness of the shell is about 20nm, there is hole on the surface.
See accompanying drawing 4, by the eggshell state porous Bi that the method described in embodiment 1 is obtained
4o
5br
2transmission electron microscope (TEM) photo of nano material.What light and shade was met each other speculate also show particle and has middle null attribute, and further demonstrate that particle surface has more great pore texture, has larger specific surface area.
Embodiment 2
Eggshell state porous Bi of the present invention
4o
5br
2nano material adopts sonochemistry technology and thermal treatment two-step process to prepare, and its concrete technology step is as follows:
S1 takes 1.940g five water Bismuth trinitrate Bi (NO
3)
35H
2o 10mL deionized water and stirring is hydrolyzed into Sol A;
S2 takes 0.1455g cetyl trimethylammonium bromide (CTAB) and is mixed with solution B with 20mL deionized water, and the mol ratio of five water Bismuth trinitrates and CTAB is 1:1;
S3 takes 0.7610g thiocarbamide (Tu) again and is mixed with solution C with 30mL deionized water;
S4 under agitation, successively solution B is added Sol A in, then solution C to be joined in A, B mixed reaction solution, continues stirring 10 minutes;
Mixed reaction solution is transferred in the blue cover glass bottle of 100mL by S5, be placed in the ultrasonic cleaner filling tap water, the temperature of ultra sonic bath is at 60 DEG C, the ultrasound wave irradiation time, at 40 minutes, after reaction terminates, takes out and naturally cools to room temperature, filtering precipitate, use water and absolute ethanol washing 2 ~ 3 times respectively, throw out being placed in temperature is 60 DEG C of baking ovens heating 10 hours, collects purple product and is precursor B OBP;
Precursor B OBP heats 1 hour by S6 in air atmosphere in 480 DEG C of retort furnaces, namely obtains ternary oxygen enrichment semi-conductor Bi of the present invention
4o
5br
2porous nanometer material.
By the Bi that the method described in embodiment 2 is obtained
4o
5br
2nano material, observes in the hollow sphere structure being similar to " Ovum crusta Gallus domesticus " shape with SEM.
Embodiment 3
Eggshell state porous Bi of the present invention
4o
5br
2nano material adopts sonochemistry technology and thermal treatment two-step process to prepare, and its concrete technology step is as follows:
S1 takes 1.942g five water Bismuth trinitrate Bi (NO
3)
35H
2o 10mL deionized water and stirring is hydrolyzed into Sol A;
S2 takes 0.2910g cetyl trimethylammonium bromide (CTAB) and is mixed with solution B with 20mL deionized water, and the mol ratio of five water Bismuth trinitrates and CTAB is 1:2;
S3 takes 0.7612g thiocarbamide (Tu) again and is mixed with solution C with 30mL deionized water;
S4 under agitation, successively solution B is added Sol A in, then solution C to be joined in A, B mixed reaction solution, continues stirring 10 minutes;
Mixed reaction solution is transferred in the blue cover glass bottle of 100mL by S5, be placed in the ultrasonic cleaner filling tap water, the temperature of ultra sonic bath is at 90 DEG C, the ultrasound wave irradiation time, at 20 minutes, after reaction terminates, takes out and naturally cools to room temperature, filtering precipitate, use water and absolute ethanol washing 2 ~ 3 times respectively, throw out being placed in temperature is 60 DEG C of baking ovens heating 8 hours, collects purple product and is precursor B OBP;
Precursor B OBP heats 1.5 hours by S6 in air atmosphere in 460 DEG C of retort furnaces, namely obtains ternary oxygen enrichment semi-conductor Bi of the present invention
4o
5br
2porous nanometer material.
By the Bi that the method described in embodiment 3 is obtained
4o
5br
2nano material, observes in the hollow sphere structure being similar to " Ovum crusta Gallus domesticus " shape with SEM.
Embodiment 4
Eggshell state porous Bi of the present invention
4o
5br
2nano material adopts sonochemistry technology and thermal treatment two-step process to prepare, and its concrete technology step is as follows:
S1 takes 1.940g five water Bismuth trinitrate Bi (NO
3)
35H
2o 10mL deionized water and stirring is hydrolyzed into Sol A;
S2 takes 0.2001g cetyl trimethylammonium bromide (CTAB) and is mixed with solution B with 20mL deionized water, and the mol ratio of five water Bismuth trinitrates and CTAB is 1:1.375;
S3 takes 0.7612g thiocarbamide (Tu) again and is mixed with solution C with 30mL deionized water;
S4 under agitation, successively solution B is added Sol A in, then solution C to be joined in A, B mixed reaction solution, continues stirring 10 minutes;
Mixed reaction solution is transferred in the blue cover glass bottle of 100mL by S5, be placed in the ultrasonic cleaner filling tap water, the temperature of ultra sonic bath is at 80 DEG C, the ultrasound wave irradiation time, at 60 minutes, after reaction terminates, takes out and naturally cools to room temperature, filtering precipitate, use water and absolute ethanol washing 2 ~ 3 times respectively, throw out being placed in temperature is 60 DEG C of baking ovens heating 6 hours, collects purple product and is precursor B OBP;
Precursor B OBP heats 1.5 hours by S6 in air atmosphere in 480 DEG C of retort furnaces, namely obtains ternary oxygen enrichment semi-conductor Bi of the present invention
4o
5br
2porous nanometer material.
By the Bi that the method described in embodiment 4 is obtained
4o
5br
2nano material, observes in the hollow sphere structure being similar to " Ovum crusta Gallus domesticus " shape with SEM.
Claims (5)
1. an eggshell state porous Bi
4o
5br
2nano material, is characterized in that, the ternary compound Bi of pure phase
4o
5br
2nano material is Hollow hierarchical, and be eggshell state, port diameter is 500 ~ 800nm, and thickness of the shell is about 20nm, and distribute a large amount of hole on the surface.
2. an eggshell state porous Bi
4o
5br
2the preparation method of nano material, is characterized in that, comprises the steps:
S1: take 0.4mmol five water Bismuth trinitrate Bi (NO
3)
35H
2o deionized water and stirring is hydrolyzed into Sol A;
S2: take CTAB deionized water and be mixed with solution B, the mol ratio of five water Bismuth trinitrates and CTAB is 1:1 ~ 1:2;
S3: take 10mmol complexing agent thiocarbamide deionized water and be mixed with solution C;
S4: under agitation, first solution B is added Sol A in, then solution C joined in A, B mixed reaction solution, overall solution volume is 60mL, continues stirring 10 minutes;
S5: mixed reaction solution is transferred in the blue cover glass bottle of 100mL, blue cover glass bottle is placed in ultrasonic cleaner, the temperature of ultra sonic bath is set to 60 ~ 90 DEG C, ultrasound wave irradiation time controling, at 20 ~ 60 minutes, after reaction terminates, takes out and naturally cools to room temperature, filtering precipitate, use water and absolute ethanol washing 2 ~ 3 times respectively, throw out is placed in the baking oven heating 6 ~ 10 hours that temperature is 60 DEG C, collects the precursor B OBP of purple;
S6: by precursor B OBP anneal 1 ~ 2 hour in retort furnace, controlling furnace temperature is 450 ~ 480 DEG C, and products obtained therefrom is eggshell state porous Bi
4o
5br
2nano material.
3. a kind of eggshell state porous Bi according to claim 2
4o
5br
2the preparation method of nano material, is characterized in that, five water Bismuth trinitrates in step S2 and the mol ratio of CTAB are 1:1.375.
4. a kind of eggshell state porous Bi according to claim 2
4o
5br
2the preparation method of nano material, is characterized in that, the bath temperature in step S5 is 80 DEG C, and the ultrasound wave irradiation time is 30 minutes.
5. a kind of eggshell state porous Bi according to claim 2
4o
5br
2the preparation method of nano material, is characterized in that, the annealing temperature in step S6 is 460 DEG C, and heat-up time is 2 hours.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582726A (en) * | 2016-09-30 | 2017-04-26 | 南京大学 | Bi4o5Br2 hollow sphere and preparation method using micro-emulsion as template |
| CN109603865A (en) * | 2019-01-28 | 2019-04-12 | 合肥学院 | A kind of bismuth metal/bismuth oxybromide composite nano materials and preparation method thereof |
| CN109702186A (en) * | 2019-01-28 | 2019-05-03 | 合肥学院 | A kind of bismuth metal nanometer shell material and preparation method thereof |
| CN111701601A (en) * | 2020-06-05 | 2020-09-25 | 南阳师范学院 | Bi4O5Br2Preparation method of self-assembled hollow flower ball and photocatalytic reduction of CO2Application of aspects |
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| CN111701601A (en) * | 2020-06-05 | 2020-09-25 | 南阳师范学院 | Bi4O5Br2Preparation method of self-assembled hollow flower ball and photocatalytic reduction of CO2Application of aspects |
| CN112570030A (en) * | 2020-12-29 | 2021-03-30 | 天津理工大学 | Bi4O5Br2Preparation method and application of/Fe-MIL composite material photocatalyst |
| CN113998734A (en) * | 2021-11-09 | 2022-02-01 | 淮阴师范学院 | Bi5O7Preparation method of Br nanosheet |
| CN113998734B (en) * | 2021-11-09 | 2024-01-26 | 淮阴师范学院 | Bi 5 O 7 Preparation method of Br nanosheets |
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