CN106915771B - One kind is with C3N4The method that mesoporous wire bismuth titanates is prepared for template - Google Patents
One kind is with C3N4The method that mesoporous wire bismuth titanates is prepared for template Download PDFInfo
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- CN106915771B CN106915771B CN201710107373.2A CN201710107373A CN106915771B CN 106915771 B CN106915771 B CN 106915771B CN 201710107373 A CN201710107373 A CN 201710107373A CN 106915771 B CN106915771 B CN 106915771B
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- 229910002115 bismuth titanate Inorganic materials 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 21
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 claims abstract description 28
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000001704 evaporation Methods 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 11
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229960000583 acetic acid Drugs 0.000 claims abstract description 9
- 239000012362 glacial acetic acid Substances 0.000 claims abstract description 9
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 7
- 238000001354 calcination Methods 0.000 claims abstract description 7
- 239000002243 precursor Substances 0.000 claims abstract description 6
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 4
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 4
- 235000012054 meals Nutrition 0.000 claims abstract description 3
- 239000000725 suspension Substances 0.000 claims abstract description 3
- 239000010936 titanium Substances 0.000 claims description 9
- 230000008020 evaporation Effects 0.000 claims description 6
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 12
- 230000001699 photocatalysis Effects 0.000 description 9
- 238000007146 photocatalysis Methods 0.000 description 6
- 238000013019 agitation Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- PPNKDDZCLDMRHS-UHFFFAOYSA-N dinitrooxybismuthanyl nitrate Chemical class [Bi+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PPNKDDZCLDMRHS-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000376 reactant Substances 0.000 description 4
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229940043267 rhodamine b Drugs 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 229910002116 Bi12TiO20 Inorganic materials 0.000 description 2
- 229910002118 Bi2Ti2O7 Inorganic materials 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 150000001622 bismuth compounds Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000002336 sorption--desorption measurement Methods 0.000 description 2
- ABFQGXBZQWZNKI-UHFFFAOYSA-N 1,1-dimethoxyethanol Chemical compound COC(C)(O)OC ABFQGXBZQWZNKI-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 229910003080 TiO4 Inorganic materials 0.000 description 1
- 238000009303 advanced oxidation process reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(III) oxide Inorganic materials O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010041 electrostatic spinning Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 239000011858 nanopowder Substances 0.000 description 1
- 239000006250 one-dimensional material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G29/00—Compounds of bismuth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/18—Arsenic, antimony or bismuth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
The present invention provides one kind with C3N4The method that mesoporous wire bismuth titanates is prepared for template, step are as follows：(1) a certain amount of bismuth nitrate is weighed in beaker, adds in glacial acetic acid stirring and dissolving, then adds in a small amount of acetylacetone,2,4-pentanedione and butyl titanate thereto, continues to stir to uniformly mixed；(2) after appropriate C is added in into step (1) acquired solution again3N4, stir to C3N4It is scattered complete, suspension is poured into evaporating dish, is placed in baking oven and precursor powder is made；(3) precursor powder that step (2) obtains is obtained into mesoporous wire metatitanic acid bismuth meal end by calcining.This method is with C3N4For template, using chemical solution decomposition technique, there is easily-controlled reaction conditions, technique and simple flow, low energy consumption.
Description
Technical field
The invention belongs to photocatalysis technology fields, and in particular to one kind is using bismuth nitrate and butyl titanate as bismuth source and titanium
Source, with C3N4For template, the method for preparing wire bismuth titanate photocatalyst.
Background technology
With the development of modern industrial or agricultural, water environment pollution is increasingly severe, the serious prestige of a large amount of organic pollutions in water body
The healthy growth of mankind itself or even animals and plants is coerced, it is extremely urgent to administer water pollution.Photocatalysis technology is a kind of advanced oxidation
Technology (AOPs), in recent years organic wastewater be particularly high concentration, used water difficult to degradate improvement in widely paid close attention to.Its
In, hot spot that one-dimensional material was always studied in recent years due to its substantial amounts of pore structure and high-specific surface area.Also because of these
Advantage, the material of this structure have stronger photocatalytic activity.
Bi2O3And TiO2It is compound to form the composite oxides with a variety of crystal phase structures:Bi4Ti3O12, Bi2Ti2O7,
Bi2Ti4O11, Bi12TiO20, Bi20TiO32Deng being commonly referred to as metatitanic acid bismuth compound.Metatitanic acid bismuth compound has special crystal structure
And electronic structure, there are TiO in their structure6Octahedra or TiO4Tetrahedron, and connected BiOnPolyhedron
It is middle to exist because possessing 6s2Lone pair electrons pair and with the Bi of three-dimensional activity3+Ion, this allows for it and lives with good photocatalysis
Property.Xu etc. (Acta.Chimica.Sinica, 2005,63 (1), 5) is by four fourth liposoluble solution of the bismuth nitrate of certain mol proportion and metatitanic acid
In acetum, the presoma of bismuth titanates is obtained by chemical solution decomposition technique, then is calcined at 550 DEG C, is prepared for
Bi12TiO20, Bi4Ti3O12, Bi2Ti2O7Nano-powder.Wang etc. (Mater.Lett, 2014,121 (2), 22) by bismuth nitrate and
Four fourth fat of metatitanic acid is dissolved in dimethoxy-ethanol and sodium hydrate aqueous solution, reacts 20h at 180 DEG C by solvent-thermal method,
It is prepared for Bi4Ti3O12Nanometer sheet.Hou etc. (Nanoscale, 2013,5 (5), 2028) bismuth nitrate and butyl titanate are dissolved
In DMF, using PVP as surfactant, mesoporous Bi has been made by method of electrostatic spinning4Ti3O12Nanofiber.However these sides
Bismuth titanates made from method, specific surface area are only 10m2g-1, and step is all more complicated, takes and of high cost, these are all
The large-scale production and its extensive use in practical systems for limiting bismuth titanates.So exploitation is easy to operate, it is of low cost,
Suitable for the method for large-scale production, have become the main target that the porous bismuth titanate photocatalysis preparation producers are pursued.
The content of the invention
It is an object of the present invention to provide one kind with C3N4The mesoporous wire bismuth titanates with good photocatalytic activity is prepared for template
The method of photochemical catalyst.
The present invention is realized by following steps：
(1) a certain amount of bismuth nitrate is weighed in beaker, is added in glacial acetic acid stirring and dissolving, then is added in acetylacetone,2,4-pentanedione thereto
With butyl titanate, continue to stir to uniformly mixed；
(2) C is added in into step (1) acquired solution3N4, stir to C3N4It is scattered complete, suspension is poured into evaporating dish
In, it is placed in baking oven and precursor powder is made；
(3) precursor powder that step (2) obtains is obtained into mesoporous wire metatitanic acid bismuth meal end by calcining.Step (1)
In, the molar ratio of the bismuth nitrate and butyl titanate is 4：3；The volume of the glacial acetic acid, butyl titanate and acetylacetone,2,4-pentanedione
Than for 20：0.52：(0.1-0.5).
Butyl titanate and C in step (2) in step (1)3N4Mass ratio be 1：10.
In step (2), the temperature range of baking oven evaporation is 140~180 DEG C, 5~10h of reaction time.
In step (3), the calcining heat is 450~550 DEG C, and heating rate is 2.5~5 DEG C/min, and calcination time is
0.5~4h.
Porous bismuth titanate obtained by the present invention is Ca-Ti ore type, and crystallization is complete, pattern rule, good dispersion.
Utilize X-ray diffractometer (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), full-automatic object
Physicochemical Sorption Analyzer (BET) isothermal adsorption patterns survey specific surface area and micromorphology analysis are carried out to product, molten with rhodamine B
Liquid carries out photocatalytic degradation experiment for target dyestuff, measures absorbance by ultraviolet-visible spectrophotometer, is urged with assessing its light
Change activity.
The present invention has the following advantages：
(1) this method is with C3N4For template, using chemical solution decomposition technique, there is easily-controlled reaction conditions, technique and flow
The advantages of simplicity, low energy consumption.
(2) with the method prepare mesoporous wire bismuth titanates, possess pattern rule, even aperture distribution, large specific surface area,
The advantages that photocatalysis effect is good.
Description of the drawings
Fig. 1 is the XRD diffraction spectrograms of prepared mesoporous wire bismuth titanates, and diffraction maximum is perovskite bismuth titanates feature in figure
Diffraction maximum.
Fig. 2 is the scanning figure a and transmission electron microscope photo b of prepared mesoporous wire bismuth titanates.
Fig. 3 is the nitrogen adsorption desorption figure of prepared mesoporous wire bismuth titanates.
Fig. 4 is the when m- degradation rate relational graph of business P25 and mesoporous wire bismuth titanates photocatalytic degradation rhodamine B solution.
Specific embodiment
With reference to specific embodiment, the invention will be further described.
Embodiment 1
20mL glacial acetic acid solutions are added in the beaker of 50mL, add 1g bismuth nitrates, for magnetic agitation to dissolving, use is micro
Injector is separately added into 0.1mL acetylacetone,2,4-pentanediones and 0.52ml butyl titanates, treats that reactant after mixing, adds 5g
C3N4, continue stirring to C3N4It is scattered complete.Gained mixture is poured into evaporating dish, 140 DEG C of evaporation 8h.By the powder of gained
It is placed in crucible, 2.5 DEG C/min is warming up to 550 DEG C, and keeps the temperature 4h.
Fig. 1 be sample obtained XRD diffraction spectrograms, contrast standard JCPDS cards (21-1272), it may be determined that for knot
The good perovskite Bi of crystalline substance4Ti3O12Powder；Fig. 2 is scanning nuclear microprobe photo, is clear that from figure apparent
Linear structure；Fig. 3 is nitrogen adsorption desorption figure, is classified according to IUPAC, adsorption isotherm meets IV types, illustrates wherein to deposit
In apparent meso-hole structure.
Embodiment 2
20mL glacial acetic acid solutions are added in the beaker of 50mL, add 1g bismuth nitrates, for magnetic agitation to dissolving, use is micro
Injector is separately added into 0.5mL acetylacetone,2,4-pentanediones and 0.52ml butyl titanates, treats that reactant after mixing, adds 5g
C3N4, continue stirring to C3N4It is scattered complete.Gained mixture is poured into evaporating dish, 140 DEG C of evaporation 8h.By the powder of gained
It is placed in crucible, 2.5 DEG C/min is warming up to 450 DEG C, and keeps the temperature 4h.
Embodiment 3
20mL glacial acetic acid solutions are added in the beaker of 50mL, add 1g bismuth nitrates, for magnetic agitation to dissolving, use is micro
Injector is separately added into 0.1mL acetylacetone,2,4-pentanediones and 0.52ml butyl titanates, treats that reactant after mixing, adds 5g
C3N4, continue stirring to C3N4It is scattered complete.Gained mixture is poured into evaporating dish, 180 DEG C of evaporation 10h.By the powder of gained
End is placed in crucible, and 5 DEG C/min is warming up to 450 DEG C, and keeps the temperature 0.5h.
Embodiment 4
20mL glacial acetic acid solutions are added in the beaker of 50mL, add 1g bismuth nitrates, for magnetic agitation to dissolving, use is micro
Injector is separately added into 0.3mL acetylacetone,2,4-pentanediones and 0.52ml butyl titanates, treats that reactant after mixing, adds 5g
C3N4, continue stirring to C3N4It is scattered complete.Gained mixture is poured into evaporating dish, 140 DEG C of evaporation 8h.By the powder of gained
It is placed in crucible, 3 DEG C/min is warming up to 450 DEG C, and keeps the temperature 1h.
Embodiment 5
(1) compound concentration is the rhodamine B solution of 10mg/L, and the solution prepared is placed in dark place.
(2) the bismuth titanates 0.1g of preparation is weighed, is placed in Photoreactor, adds in the rhodamine that 100mL steps (1) are prepared
B solution, magnetic agitation 30min, bubbling, dark reaction 1h after bismuth titanates is uniformly dispersed, open water source, and light source carries out photocatalysis
Degradation experiment.
(3) per 30min, once, sampling amount 5ml with multitube frame autobalance centrifuge 3min, makes catalysis for sampling
Agent precipitates completely, and the measurement of UV-visible absorbance is used for after centrifugation.
(4) prepared mesoporous wire bismuth titanates has excellent photocatalytic activity as seen from Figure 4, reacts 30min, to dye
The degradation rate of material has reached 30%, and for illumination 180min degradation rates close to 100%, performance is better than P25.
Claims (4)
1. one kind is with C3N4The method that mesoporous wire bismuth titanates is prepared for template, which is characterized in that comprise the following steps：
（1）A certain amount of bismuth nitrate is weighed in beaker, glacial acetic acid stirring and dissolving is added in, then adds in acetylacetone,2,4-pentanedione and titanium thereto
Sour four butyl esters continue to stir to uniformly mixed；
（2）To step（1）C is added in acquired solution3N4, stir to C3N4It is scattered complete, suspension is poured into evaporating dish, is placed
Precursor powder is made in baking oven；
（3）By step（2）Obtained precursor powder obtains mesoporous wire metatitanic acid bismuth meal end by calcining；
Step（1）Middle butyl titanate and step（2）Middle C3N4Mass ratio be 1：10.
2. one kind according to claim 1 is with C3N4The method that mesoporous wire bismuth titanates is prepared for template, which is characterized in that
Step（1）In, the molar ratio of the bismuth nitrate and butyl titanate is 4：3；The glacial acetic acid, butyl titanate and acetylacetone,2,4-pentanedione
Volume ratio be 20：0.52：(0.1-0.5).
3. one kind according to claim 1 is with C3N4The method that mesoporous wire bismuth titanates is prepared for template, which is characterized in that
Step（2）In, the temperature range of baking oven evaporation is 140 ~ 180 DEG C, 5 ~ 10 h of reaction time.
4. one kind according to claim 1 is with C3N4The method that mesoporous wire bismuth titanates is prepared for template, which is characterized in that
Step（3）In, the calcining heat is 450 ~ 550 DEG C, and heating rate is 2.5 ~ 5 DEG C/min, and calcination time is 0.5 ~ 4h.
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| CN101428210A (en) * | 2008-12-12 | 2009-05-13 | 上海师范大学 | Porous structured bismuth titanate microsphere, preparation method and application thereof |
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| CN104211116A (en) * | 2014-08-26 | 2014-12-17 | 浙江大学 | Preparation method of Bi4Ti3O12 single-crystal nanorod and Bi4Ti3O12 single-crystal nanorod product |
| CN104556240A (en) * | 2015-02-04 | 2015-04-29 | 西安工业大学 | Preparation method of bismuth titanate (BT) ferroelectric film |
| CN105521776A (en) * | 2014-09-29 | 2016-04-27 | 南京理工大学 | Compound metal oxide Bi4Ti3O12 nanocrystal and preparation method thereof |
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|---|---|---|---|---|
| CN101428210A (en) * | 2008-12-12 | 2009-05-13 | 上海师范大学 | Porous structured bismuth titanate microsphere, preparation method and application thereof |
| CN104005089A (en) * | 2013-02-27 | 2014-08-27 | 吉林师范大学 | Preparation method for self-assembled Bi4Ti3O12 single-crystal nanowire by solvent process |
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