CN106632454A - Boron-containing perovskite material serving as ray shielding material and preparation method thereof - Google Patents
Boron-containing perovskite material serving as ray shielding material and preparation method thereof Download PDFInfo
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- CN106632454A CN106632454A CN201611208445.4A CN201611208445A CN106632454A CN 106632454 A CN106632454 A CN 106632454A CN 201611208445 A CN201611208445 A CN 201611208445A CN 106632454 A CN106632454 A CN 106632454A
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- 239000000463 material Substances 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 title abstract description 10
- 229910052796 boron Inorganic materials 0.000 title abstract description 10
- 229910001412 inorganic anion Inorganic materials 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 7
- 150000001449 anionic compounds Chemical class 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 150000002891 organic anions Chemical class 0.000 claims abstract description 4
- 150000001767 cationic compounds Chemical class 0.000 claims abstract description 3
- 229910001411 inorganic cation Inorganic materials 0.000 claims abstract description 3
- 150000002892 organic cations Chemical class 0.000 claims abstract description 3
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 claims description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 14
- 230000005855 radiation Effects 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 9
- 239000002243 precursor Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 7
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000012300 argon atmosphere Substances 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000012298 atmosphere Substances 0.000 claims description 3
- 229910052788 barium Inorganic materials 0.000 claims description 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052790 beryllium Inorganic materials 0.000 claims description 3
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052792 caesium Inorganic materials 0.000 claims description 3
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 3
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 229910052701 rubidium Inorganic materials 0.000 claims description 3
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052712 strontium Inorganic materials 0.000 claims description 3
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- ZFPGARUNNKGOBB-UHFFFAOYSA-N 1-Ethyl-2-pyrrolidinone Chemical class CCN1CCCC1=O ZFPGARUNNKGOBB-UHFFFAOYSA-N 0.000 claims description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 2
- SEYSYKRKOCUQNL-UHFFFAOYSA-N NC.OB(O)O Chemical compound NC.OB(O)O SEYSYKRKOCUQNL-UHFFFAOYSA-N 0.000 claims description 2
- MHDVGSVTJDSBDK-UHFFFAOYSA-N dibenzyl ether Chemical compound C=1C=CC=CC=1COCC1=CC=CC=C1 MHDVGSVTJDSBDK-UHFFFAOYSA-N 0.000 claims description 2
- 229940113088 dimethylacetamide Drugs 0.000 claims description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims 3
- 150000001450 anions Chemical class 0.000 claims 1
- 150000002576 ketones Chemical class 0.000 claims 1
- 230000005251 gamma ray Effects 0.000 abstract description 7
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 150000001768 cations Chemical class 0.000 abstract description 2
- 125000003462 boron containing inorganic group Chemical group 0.000 abstract 1
- 230000005012 migration Effects 0.000 abstract 1
- 238000013508 migration Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- -1 Dimethyl methyl Acid amides Chemical class 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- JTCFNJXQEFODHE-UHFFFAOYSA-N [Ca].[Ti] Chemical compound [Ca].[Ti] JTCFNJXQEFODHE-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 150000002083 enediols Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000003956 methylamines Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/24—Lead compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/003—Compounds containing elements of Groups 4 or 14 of the Periodic Table without C-Metal linkages
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/02—Selection of uniform shielding materials
- G21F1/10—Organic substances; Dispersions in organic carriers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a boron-containing perovskite material serving as a ray shielding material. The chemical formula of the boron-containing perovskite material is (A1)x(A2)1-x(B1)y(B2)1-y(X1)z(X2)3-x, wherein x is more than or equal to 0 and less than or equal to 1, y is more than or equal to 0 and less than or equal to 1, z is more than or equal to 0 and less than or equal to 3, A1 and A2 are organic or inorganic cations, B1 and B2 are divalent metal cations, X1 is a boron-free organic or inorganic anion, X2 is a boron-containing inorganic anion, and y is equal to 0 when x is equal to 0. The invention further provides a method for preparing the boron-containing perovskite material. The boron-containing perovskite material is used as an X/gamma ray shielding material, can significantly increase the carrier migration rate and the exciton diffusion length, and realizes effective shielding of X/gamma rays; meanwhile, the boron-containing perovskite material has the advantages of simple preparation process and low cost, so that the boron-containing perovskite material is suitable for popularization and application.
Description
Technical field
The present invention relates to radiation shield technical field, and in particular to be a kind of boracic calcium titanium as radiation shielding material
Pit wood material and preparation method thereof.
Background technology
Perovskite structural material is by its adjustable energy gap, high carrier mobility, good the two poles of the earth electric charge transmission
Characteristic, long exciton diffusion length and simple preparation technology so that it is in electronics devices such as solar cell, light shield devices
Part field is extensively studied and applies.And B element is due to absorption cross-section height, capture spectra width and aboundresources price is low, because
And nuclear industry is generally using iron containing B as high-energy ray shielding material.At present, preparation both at home and abroad to boron-containing steel and screen
Cover performance to conduct extensive research, it is ensured that excellent thermal neutron shielding simultaneously, takes into account good mechanical processability and low cost.
Therefore, how B element uniformly to be adulterated such as to enter in perovskite structural material with some form, using perovskite
Adjustable energy gap, high carrier mobility, long exciton diffusion length, design is prepared based on the perovskite structure of boracic
NEW TYPE OF COMPOSITE shielding material, it appears particularly important.
The content of the invention
The invention provides a kind of boracic perovskite material as radiation shielding material and preparation method thereof, can be effective
Raising MAPbX3To the gamma-ray radiation screening effects of X/.
For achieving the above object, the technical solution used in the present invention is as follows:
Boracic perovskite material as radiation shielding material, the chemical formula of the perovskite material is (A1)x(A2)1-x(B1)y
(B2)1-y(X1)z(X2)3-z, wherein 0≤x≤1,0≤y≤1,0≤z≤3, A1, A2 are organic or inorganic cation, B1, B2
Divalent metal is, X1 is the organic or inorganic anion of not boracic, and X2 is the inorganic anion of boracic, and during x=0,
y=0。
Preferably, the A1 and A2 be epoxy resin, methylamine, carbonamidine, lithium, sodium, potassium, rubidium, caesium, beryllium, magnesium, calcium, strontium,
Any one in barium.
Preferably, the B1 and B2 are any one in lead, tin, copper, germanium.
Preferably, the X1 is I, Br, Cl, PF6, any one in SCN, X2 is BF4。
Based on above-mentioned material, present invention also offers the preparation method of the boracic perovskite material, comprises the following steps:
(1)Under an argon atmosphere, by the aqueous solution of the ethanol solution of methylamine and fluoboric acid by volume for 1: 1.6 ratio in 0
It is well mixed at temperature below DEG C, and the evaporation solvent at a temperature of more than 50 DEG C, obtain fluoboric acid methylamine powder;
(2)Organic solvent is dissolved in together with the ratio for being in mass ratio 0.012: 0.604 with lead iodide by good fortune boric acid methylamine powder
In, obtain the precursor solution of boracic calcium pit wood material;
(3)Precursor solution is dried into 2~15h at a temperature of 80~120 DEG C, perovskite material is obtained.
Preferably, the step(2)In, the oil machine solvent is methyl alcohol, ethanol, isopropanol, the tert-butyl alcohol, chloroform, second
Enediol, dimethyl acetamide, dimethyl sulfoxide, benzyl ether, 1-METHYLPYRROLIDONE, N- ethyl pyrrolidones, N, N- dimethyl
One or more in formamide.
Preferably, the step(3)In, precursor solution is done by the way of vacuum or nitrogen protection atmosphere
It is dry.
Compared with prior art, the invention has the advantages that:
(1)The present invention is with ABX3Based on perovskite structure, using the organic or inorganic doping agent of boracic preparation is doped
Obtain boracic perovskite material(Chemical formula is:(A1)x(A2)1-x(B1)y(B2)1-y(X1)z(X2)3-z), the present invention is by reasonable
Preparation technology design, by using boride as absorber mix perovskite structure MAPbI3In molecule, using boride
Less ionic radius, improves stability in its environment, suppresses MAPbI3Decomposition in aqueous oxygen atmosphere, while can be effective
Improve MAPbX3To the gamma-ray radiation screening effects of X/.Also, the present invention can also utilize the absorption characteristic of boride, carry
The comprehensive shielded performance of high composite.
(2)Raw material of the present invention and equipment cost is cheap, raw material sources extensively, it is convenient to prepare, can with whole soln working process,
Therefore, the present invention is with a wide range of applications.
Specific embodiment
With reference to embodiment, the invention will be further described, and the mode of the present invention includes but are not limited to following enforcement
Example.
The invention provides a kind of boracic perovskite material, can be used as X/ gamma ray shielding materials, its chemical formula is (A1)x
(A2)1-x(B1)y(B2)1-y(X1)z(X2)3-z, wherein 0≤x≤1,0≤y≤1,0≤z≤3, A1, A2 are organic or inorganic sun
Ion(Such as epoxy resin, methylamine, carbonamidine, lithium, sodium, potassium, rubidium, caesium, beryllium, magnesium, calcium, strontium or barium), B1, B2 are divalent metal
Cation(Such as lead, tin, copper or germanium), X1 is the organic or inorganic anion of not boracic(For example, I, Br, Cl, PF6Or
SCN), X2 is the inorganic anion of boracic(Such as BF4), and during x=0, y=0.The system of boracic perovskite material of the present invention
Standby process is as follows:
(1)Under an argon atmosphere, the ethanol solution of methylamine is mixed with the aqueous solution of fluoboric acid at less than 0 DEG C of temperature
It is even, and the evaporation solvent at a temperature of more than 50 DEG C, obtain fluoboric acid methylamine powder;
(2)Fluoboric acid methylamine powder is dissolved in organic solvent together with lead iodide, the presoma for obtaining perovskite material is molten
Liquid;
(3)Precursor solution is dried into 2~15h at a temperature of 80~120 DEG C, perovskite material is obtained.
With arranging the present invention is illustrated as one example below.
In the perovskite-based material of boracic, A is CH3NH3 +, B1 is Pb2+, X1 is I-, X2 is BF4 -, and x=1, y=1, z=2.9,
The chemical formula of the perovskite-based material of corresponding boracic is CH3NH3PbI2.9(BF4)0.1, specific implementation step prepared by the material is such as
Under:
(1)Under an argon atmosphere, the ethanol solution (8wt%) of 10ml methylamines is taken, the aqueous solution with 16ml fluoboric acid is allowed to
(48wt%) it is well mixed at 0 DEG C, the evaporation solvent at 50 DEG C, obtains fluoboric acid methylamine powder;
(2)Take the PbI of 0.461g2, the CH of 0.143g3NH3The CH of I and 0.012g3NH3BF4, DMF is dissolved in together(Dimethyl methyl
Acid amides)In, obtain the precursor solution of boracic perovskite material;
(3)Take step(2)The precursor solution of gained, 80 DEG C are dried 2h, obtain boracic perovskite material.
The method of testing of material shielding performance:Using the boracic perovskite material for preparing as main body, with epoxy resin
Be respectively adopted normal pressure open type pouring technology with polyimides macromolecule matrix and die press technology for forming prepare 5mm it is thick containing boron rock
Thing/polymer composite.It is tested to medical 60~250 kVp medical X-rays and the gamma-ray shielding in 125I sources
Energy.
Change presoma composition, on the premise of other conditions are constant, (A1) for obtainingx(A2)1-x(B1)y(B2)1-y(X1)z
(X2)3-zShielding properties is as shown in table 1 below.
(A1) that the different presoma compositions of table 1 are obtainedx(A2)1-x(B1)y(B2)1-y(X1)z(X2)3-zResult of detection
As it can be seen from table 1 changing (A1)x(A2)1-x(B1)y(B2)1-y(X1)z(X2)3-zComposition, it can be directly affected to X/
Gamma-ray shield effectiveness.Especially with respect to the perovskite material CH of not boracic3NH3PbI3, after being doped into boron-containing compound,
Composite will be obviously improved to the gamma-ray shield effectivenesses of X/, and the absorption cross-section that this is likely due to B is high, capture spectra width
The reason for.Particularly, when with part Sn substitute Pb after, material keep shield effectiveness higher to X/ gamma-rays while, its
The stability of itself also improves.
The present invention is selected and Proportionality design by rational raw material, and organic using boracic or inorganic doping agent is mixed
It is miscellaneous, boracic perovskite material has been prepared, this kind of boracic perovskite material can carry out high-efficiency shielding, have again to X/ gamma-rays
Good stability.Therefore, compared with prior art, the technology of the present invention progress is fairly obvious, and it has prominent substance special
Point and significant progress.
Above-described embodiment is only one of the preferred embodiment of the present invention, should not be taken to limit the protection model of the present invention
Enclose, all body design thought and the change or polishing of having no essential meaning mentally made in the present invention, what it was solved
Technical problem is still consistent with the present invention, should be included within protection scope of the present invention.
Claims (7)
1. the boracic perovskite material as radiation shielding material, it is characterised in that the chemical formula of described perovskite material is
(A1)x(A2)1-x(B1)y(B2)1-y(X1)z(X2)3-z, wherein 0≤x≤1,0≤y≤1,0≤z≤3, A1, A2 be it is organic or
Inorganic cation, B1, B2 are divalent metal, and X1 is the organic or inorganic anion of not boracic, and X2 is the nothing of boracic
Machine anion, and during x=0, y=0.
2. the boracic perovskite material as radiation shielding material according to claim 1, it is characterised in that the A1 and
A2 is any one in epoxy resin, methylamine, carbonamidine, lithium, sodium, potassium, rubidium, caesium, beryllium, magnesium, calcium, strontium, barium.
3. the boracic perovskite material as radiation shielding material according to claim 2, it is characterised in that the B1 and
B2 is any one in lead, tin, copper, germanium.
4. the boracic perovskite material as radiation shielding material according to claim 3, it is characterised in that the X1 is
I、Br、Cl、PF6, any one in SCN, X2 is BF4。
5. the preparation method of the boracic perovskite material described in Claims 1 to 4 any one, it is characterised in that including following
Step:
(1)Under an argon atmosphere, by the aqueous solution of the ethanol solution of methylamine and fluoboric acid by volume for 1: 1.6 ratio in 0
It is well mixed at temperature below DEG C, and the evaporation solvent at a temperature of more than 50 DEG C, obtain fluoboric acid methylamine powder;
(2)Organic solvent is dissolved in together with the ratio for being in mass ratio 0.012: 0.604 with lead iodide by good fortune boric acid methylamine powder
In, obtain the precursor solution of boracic calcium pit wood material;
(3)Precursor solution is dried into 2~15h at a temperature of 80~120 DEG C, perovskite material is obtained.
6. preparation method according to claim 5, it is characterised in that the step(2)In, the oil machine solvent is first
Alcohol, ethanol, isopropanol, the tert-butyl alcohol, chloroform, ethylene glycol, dimethyl acetamide, dimethyl sulfoxide, benzyl ether, N- crassitudes
One or more in ketone, N- ethyl pyrrolidones, DMF.
7. preparation method according to claim 6, it is characterised in that the step(3)In, to precursor solution using true
The mode of empty or nitrogen protection atmosphere is dried.
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107316668A (en) * | 2017-08-02 | 2017-11-03 | 北京大学 | A kind of X-ray protection structure based on perovskite material and preparation method thereof |
CN109206449A (en) * | 2018-08-01 | 2019-01-15 | 南京航空航天大学 | A kind of organic and inorganic perovskite crystal material and the preparation method and application thereof |
CN109921043A (en) * | 2019-02-26 | 2019-06-21 | 五邑大学 | A kind of elctro-catalyst and preparation method thereof of B adulterated with Ca and Ti ore type oxide |
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CN115286513A (en) * | 2022-08-11 | 2022-11-04 | 哈尔滨工业大学 | Methylamine lead iodide perovskite powder and preparation method and application thereof |
CN115304982A (en) * | 2022-08-11 | 2022-11-08 | 哈尔滨工业大学 | Shielding coating for satellite-borne integrated circuit packaging and preparation method thereof |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107316668A (en) * | 2017-08-02 | 2017-11-03 | 北京大学 | A kind of X-ray protection structure based on perovskite material and preparation method thereof |
CN109206449A (en) * | 2018-08-01 | 2019-01-15 | 南京航空航天大学 | A kind of organic and inorganic perovskite crystal material and the preparation method and application thereof |
CN109921043A (en) * | 2019-02-26 | 2019-06-21 | 五邑大学 | A kind of elctro-catalyst and preparation method thereof of B adulterated with Ca and Ti ore type oxide |
CN109921043B (en) * | 2019-02-26 | 2021-10-08 | 五邑大学 | Electro-catalyst of B-doped perovskite oxide and preparation method thereof |
WO2020249927A1 (en) * | 2019-06-11 | 2020-12-17 | Oxford University Innovation Limited | Optoelectronic device |
CN115286513A (en) * | 2022-08-11 | 2022-11-04 | 哈尔滨工业大学 | Methylamine lead iodide perovskite powder and preparation method and application thereof |
CN115304982A (en) * | 2022-08-11 | 2022-11-08 | 哈尔滨工业大学 | Shielding coating for satellite-borne integrated circuit packaging and preparation method thereof |
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