CN107626321A - One kind quickly prepares different morphologies BiFeO3The method of photochemical catalyst - Google Patents
One kind quickly prepares different morphologies BiFeO3The method of photochemical catalyst Download PDFInfo
- Publication number
- CN107626321A CN107626321A CN201710926850.8A CN201710926850A CN107626321A CN 107626321 A CN107626321 A CN 107626321A CN 201710926850 A CN201710926850 A CN 201710926850A CN 107626321 A CN107626321 A CN 107626321A
- Authority
- CN
- China
- Prior art keywords
- deionized water
- precipitation
- photochemical catalyst
- bifeo
- added
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Catalysts (AREA)
Abstract
The invention discloses one kind quickly to prepare different morphologies BiFeO3The method of photochemical catalyst, belong to photocatalyst material fabricating technology field.The present invention uses Bi (NO3)3·5H2O and FeCl3·6H2O is raw material, appropriate raw material is weighed to be dissolved in acetone, add appropriate amount of deionized water, concentrated ammonia liquor regulation pH value is added dropwise again, the reddish-brown precipitation of precipitation is centrifuged at a high speed, the polyvinylpyrrolidone (PVP) and NaOH for adding certain mass are configured to solution, and stainless steel high temperature reactor is moved into after stirring, and are heated to 180 DEG C and are kept for 72 hours.After naturally cooling to room temperature, collect precipitate and use deionized water and washes of absolute alcohol, drying after can obtain BiFeO3Photochemical catalyst.Degradating organic dye methyl orange (MO) solution, the catalyst show preferable photocatalytic activity under visible light illumination.The present invention is simple with preparation technology, and cost is low, pollutes the advantages that small.
Description
Technical field
The present invention relates to one kind quickly to prepare different morphologies BiFeO3The method of photochemical catalyst, belong to photochemical catalyst and prepare work
Skill technical field.
Background technology
As a kind of typical multi-iron material, Ca-Ti ore type bismuth ferrite (BiFeO3) due to its unique physical property and latent
Practical application, cause the broad interest of researchers.BiFeO3There is ferroelectricity and ferromagnetic order simultaneously at room temperature, thus it is early
Phase researchers more pay close attention to its more iron characteristic.Later research finds, it has suitable energy gap (~2.2eV) and excellent
Chemical stability, BiFeO3Research be progressively extended to the other fields such as optics.The material of different crystal face exposures, its optics are special
Property be possible to different.In order to obtain different tendentious crystal face exposures, prepared by the morphology controllable of nano material turn into hot research
One of content.Using various improved preparation means, the different BiFeO of synthesis pattern3Nano material, so as to obtain more preferable electricity
And optical property.Due to space geometry effect, the controllable preparation of nano material increasingly shows its importance.Therefore, control
BiFeO processed3The size and shape characteristic of nano-particle play decision to its magnetics, electricity, optics and catalytic property etc.
The influence of property.
Prepare the BiFeO of pure phase3Material is still filled with challenging, and often produces Bi2Fe4O9, Bi25FeO40Deng dephasign, dephasign
Presence will influence the electricity and magnetic property of this material.Comparatively, hydro-thermal method is to prepare the nanostructured of uniform morphology
Relatively common method.Using different reaction conditions, for example appropriate mineralizer and surfactant are added, can effectively controlled
Combinations body nucleation and growth.
Although there are many researchs to focus on BiFeO3Pattern control and characterize, but still necessary go to synthesize
The BiFeO of different shape and size3Nanostructured, with obtain the physics preferably relied on pattern and size, chemical property and
Extensive practical application.
The content of the invention
Technical problem：The problem to be solved in the present invention is that providing one kind quickly prepares different morphologies BiFeO3Photochemical catalyst
Method, this preparation technology is simple, controllability is strong, readily available BiFeO of good performance3Photochemical catalyst.
Technical scheme：Present invention synthesis different morphologies BiFeO3The preparation method of photochemical catalyst is specially：
Weigh five appropriate nitric hydrate bismuth (Bi (NO3)3·5H2) and high iron chloride (FeCl O3·6H2O) in molar ratio 1:
1 is dissolved in 50mL acetone, is aided with ultrasound.Deionized water 200mL is added, then concentrated ammonia liquor 30mL is added dropwise, by the precipitation of precipitation
It is centrifuged at a high speed, and is scattered in 35mL deionized waters, adds the NaOH of 0.5gPVP and different quality, it is molten by what is configured
Liquid pours into stainless steel high temperature reactor, is heated to 180 DEG C and is kept for 72 hours.After naturally cooling to room temperature, collect precipitation and be used in combination
Deionized water and washes of absolute alcohol, it can be obtained after drying.
Brief description of the drawings
Fig. 1 is the BiFeO of the present invention3The XRD spectrum of photochemical catalyst.
Fig. 2 is the BiFeO of the present invention3The SEM spectrum and catalytic degradation curve of photochemical catalyst, wherein (a) NaOH is 0.8g,
(b) NaOH is 3.2g, and (c) NaOH is 6.4g, (d) catalytic degradation curve.
Embodiment
With reference to embodiment and relevant chart, the present invention will be described in detail, but real the invention is not restricted to give
Example：
(1) in molar ratio 1:1 weighs the nitric hydrate bismuth (Bi (NO of 2.425g five respectively3)3·5H2) and the high chlorinations of 1.352g O
Iron (FeCl3·6H2O) it is added in the acetone that 50mL contents are 99.8%, ultrasound 30 minutes, obtains faint yellow suspension.
(2) deionized water 200mL is slowly added to, then concentrated ammonia liquor 30mL is added dropwise, the pH value for adjusting solution is about 11, together
Shi Jinhang is persistently stirred.
(3) reddish-brown precipitation of precipitation is centrifuged at a high speed, it is neutral to be cleaned multiple times with deionized water to pH value.Again will
Reddish-brown precipitation is scattered in 35mL deionized water.
(4) 0.5g PVP and 0.8g NaOH are added, and continues to stir.
(5) solution configured is poured into the stainless steel high temperature reactor of Teflon back boxing, is heated to 180 DEG C and holding 72
Hour.After naturally cooling to room temperature, dry 5 is small at collecting precipitation and respectively being cleaned three times, 80 DEG C with deionized water and absolute ethyl alcohol
When, you can obtain BiFeO3Photochemical catalyst product.
Fig. 1 is prepared BiFeO3The XRD spectrum of photochemical catalyst, as can be seen from the figure the crystallinity of sample is good,
There is no dephasign, PDF standard cards are：86-1518.
Fig. 2 (a-c) is the SEM spectrum of sample, and NaOH is 0.8g in Fig. 2 (a), and sample shows grain of rice type appearance, Fig. 2
(b) NaOH is 3.2g in, and sample shows blockage appearance, and NaOH is 6.4g in Fig. 2 (c), and sample shows laminar appearance,
Size is in nanometer scale, and pattern is than more uniform, and dispersiveness is preferably.Fig. 2 (d) is the photocatalytic degradation curve of laminar sample,
Under the radiation of visible light of 180 minutes, for sample degradation methyl orange solution up to 70%, catalytic performance is preferable.
Claims (1)
1. one kind quickly prepares different morphologies BiFeO3The method of photochemical catalyst, it is characterised in that comprise the following steps：
(1) raw material is five nitric hydrate bismuths（Bi(NO3)3·5H2O）With high iron chloride（FeCl3·6H2O）, in molar ratio 1:1 point
Also known as take 2.425 g and 1.352 g to be added in the acetone that 50 mL contents are 99.8%, ultrasound 30 minutes, obtain faint yellow outstanding
Turbid；
(2) mL of deionized water 200 is slowly added to, then concentrated ammonia liquor 30mL is added dropwise, the pH value of solution is adjusted, persistently stirs 30
Minute；
(3) reddish-brown precipitation of precipitation is centrifuged at a high speed, it is neutral to be cleaned multiple times with deionized water to pH value；Again will be reddish brown
Color precipitation is scattered in 35mL deionized water；
(4) 0.5 g polyvinylpyrrolidone is added（PVP）With the NaOH of different quality, and continue to stir；
(5) solution configured is poured into the stainless steel high temperature reactor of Teflon back boxing, 180 °C is heated to and holding 72 is small
When；After naturally cooling to room temperature, collect precipitation and obtained after being dried under respectively being cleaned three times, 80 °C with deionized water and absolute ethyl alcohol
.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710926850.8A CN107626321A (en) | 2017-10-08 | 2017-10-08 | One kind quickly prepares different morphologies BiFeO3The method of photochemical catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710926850.8A CN107626321A (en) | 2017-10-08 | 2017-10-08 | One kind quickly prepares different morphologies BiFeO3The method of photochemical catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107626321A true CN107626321A (en) | 2018-01-26 |
Family
ID=61104995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710926850.8A Pending CN107626321A (en) | 2017-10-08 | 2017-10-08 | One kind quickly prepares different morphologies BiFeO3The method of photochemical catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107626321A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759385A (en) * | 2018-07-25 | 2020-02-07 | 中国科学院金属研究所 | Bismuth ferrite nano cube material and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654283A (en) * | 2009-09-17 | 2010-02-24 | 陕西科技大学 | Method for preparing bismuth ferrite powder by microwave hydrothermal method |
| CN102030374A (en) * | 2010-12-31 | 2011-04-27 | 陕西科技大学 | Microwave hydrothermal method for preparing bismuth ferrite powder |
| CN102101700A (en) * | 2010-12-31 | 2011-06-22 | 陕西科技大学 | Method for preparing sillenite powder by microwave-hydrothermal method |
| CN105521789A (en) * | 2016-01-04 | 2016-04-27 | 南京林业大学 | Preparation method of porous nano-scale BiFeO3 |
| CN106964376A (en) * | 2017-03-08 | 2017-07-21 | 河南师范大学 | A kind of visible light-responded BiFeO3The preparation method of/BiOCl heterojunction photocatalysts |
-
2017
- 2017-10-08 CN CN201710926850.8A patent/CN107626321A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654283A (en) * | 2009-09-17 | 2010-02-24 | 陕西科技大学 | Method for preparing bismuth ferrite powder by microwave hydrothermal method |
| CN102030374A (en) * | 2010-12-31 | 2011-04-27 | 陕西科技大学 | Microwave hydrothermal method for preparing bismuth ferrite powder |
| CN102101700A (en) * | 2010-12-31 | 2011-06-22 | 陕西科技大学 | Method for preparing sillenite powder by microwave-hydrothermal method |
| CN105521789A (en) * | 2016-01-04 | 2016-04-27 | 南京林业大学 | Preparation method of porous nano-scale BiFeO3 |
| CN106964376A (en) * | 2017-03-08 | 2017-07-21 | 河南师范大学 | A kind of visible light-responded BiFeO3The preparation method of/BiOCl heterojunction photocatalysts |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759385A (en) * | 2018-07-25 | 2020-02-07 | 中国科学院金属研究所 | Bismuth ferrite nano cube material and preparation method and application thereof |
| CN110759385B (en) * | 2018-07-25 | 2021-10-15 | 中国科学院金属研究所 | Bismuth ferrite nano cube material and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lee et al. | Microwave-hydrothermal versus conventional hydrothermal preparation of Ni-and Zn-ferrite powders | |
| El-Sayed et al. | Influence of the magnetic dead layer thickness of Mg-Zn ferrites nanoparticle on their magnetic properties | |
| Kolen'ko et al. | Hydrothermal synthesis of nanocrystalline and mesoporous titania from aqueous complex titanyl oxalate acid solutions | |
| CN105802579B (en) | A kind of high saturation and magnetic intensity nano ferriferrous oxide/graphene composite material and preparation method thereof with electro-magnetic screen function | |
| CN103058283B (en) | Preparation method of iron oxides with adjustable size, appearance and compositions | |
| Aimable et al. | Continuous hydrothermal synthesis of inorganic nanopowders in supercritical water: towards a better control of the process | |
| Nonkumwong et al. | Phase formation, morphology and magnetic properties of MgFe2O4 nanoparticles synthesized by hydrothermal technique | |
| Liu et al. | Catalytic synthesis of nanosized hematite particles in solution | |
| George et al. | Temperature effect on CuO nanoparticles: antimicrobial activity towards bacterial strains | |
| CN102285690B (en) | Chemical coprecipitation method for synthesizing Bi2Fe4O9 submicron rods | |
| Roy et al. | Soft template induced phase selective synthesis of Fe 2 O 3 nanomagnets: one step towards peroxidase-mimic activity allowing colorimetric sensing of thioglycolic acid | |
| Kundu et al. | Microwave assisted swift synthesis of ZnWO4 nanomaterials: material for enhanced photo-catalytic activity | |
| CN104211127A (en) | Preparation method of alpha-Fe2O3 hollow microspheres | |
| Shen et al. | Growth mechanism of octahedral like nickel ferrite crystals prepared by modified hydrothermal method and morphology dependent magnetic performance | |
| CN104229900A (en) | Preparation method of alpha-Fe2O3 cubes | |
| CN107626321A (en) | One kind quickly prepares different morphologies BiFeO3The method of photochemical catalyst | |
| CN101049977A (en) | Method for preparing Nano Fe2O3 | |
| Moghaddam et al. | Controlled microwave-assisted synthesis of ZnFe2O4 nanoparticles and their catalytic activity for O-acylation of alcohol and phenol in acetic anhydride | |
| CN103193472A (en) | Method for synthesizing subsphaeroidal barium ferrite superfine powder by using ultrasound-assisted coprecipitation method | |
| CN102557141B (en) | Structure-oriented synthetic method of zinc tungstate nanometer sheet | |
| CN104815658B (en) | Tetrahexahedron iron oxide nanocrystalline catalyst, preparation method and application thereof | |
| CN107651712B (en) | It is co-precipitated the method that a step prepares nitrate anion intercalation NiAl-HTLcs | |
| CN103288140A (en) | Method for simply regulating ferroferric oxide nanoparticle morphology | |
| CN101357779B (en) | Method for preparing nano Fe3O4 powder | |
| CN117550966A (en) | Novel manganese tetranuclear structure metal complex, and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180126 |
|
| WD01 | Invention patent application deemed withdrawn after publication |