CN109967109A - One-dimensional Bi2O2CO3Nanometer rods and preparation method thereof - Google Patents
One-dimensional Bi2O2CO3Nanometer rods and preparation method thereof Download PDFInfo
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- CN109967109A CN109967109A CN201910311695.8A CN201910311695A CN109967109A CN 109967109 A CN109967109 A CN 109967109A CN 201910311695 A CN201910311695 A CN 201910311695A CN 109967109 A CN109967109 A CN 109967109A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000001354 calcination Methods 0.000 claims description 25
- 239000013078 crystal Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 14
- 230000001699 photocatalysis Effects 0.000 abstract description 9
- 238000007146 photocatalysis Methods 0.000 abstract description 7
- 239000000047 product Substances 0.000 description 18
- 238000002441 X-ray diffraction Methods 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 8
- WMWLMWRWZQELOS-UHFFFAOYSA-N bismuth(III) oxide Inorganic materials O=[Bi]O[Bi]=O WMWLMWRWZQELOS-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000002003 electron diffraction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002173 high-resolution transmission electron microscopy Methods 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000004847 absorption spectroscopy Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 238000000985 reflectance spectrum Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229960000935 dehydrated alcohol Drugs 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229960000907 methylthioninium chloride Drugs 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/20—Carbon compounds
- B01J27/232—Carbonates
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention discloses a kind of one-dimensional Bi2O2CO3Nanometer rods and preparation method thereof, the Bi2O2CO3Nanometer rods have porous one-dimensional rod-like structure, have filled up the blank of scientific research, are Bi2O2CO3Research provide new technical support, moreover, the present invention is prepared for the one-dimensional Bi by one-step method2O2CO3Nanometer rods, method is simple, easily controllable, application value with higher.Also, the Bi2O2CO3One-dimensional nano stick has preferable photocatalysis, therefore, the one-dimensional Bi2O2CO3Nanometer rods theory and actual application value with higher.
Description
Technical field
The present invention relates to nano materials, and in particular, to a kind of one-dimensional Bi2O2CO3Nanometer rods and preparation method thereof.
Background technique
In in the past few decades, photocatalysis is as a kind of economic, environmental protection and effective solution pollution problem technology,
Cause the research overbearing tide of whole world researchers.In view of the efficient utilization of solar energy, the photochemical catalyst gesture with high activity is developed
It must go.
Studies have shown that Bi2O2CO3It is a kind of effective novel photocatalyst, under simulated solar light action, can effectively drops
Solve environmental contaminants.Bi2O2CO3For layer structure, along C axis direction [Bi2O2]2+Layer and CO3 2-Layer passes through Van der Waals force edge
[001] direction alternately accumulated is grown.Due to the long-living characteristic of crystal anisotropic, Bi2O2CO3Most easily it is grown to exposure (001) crystal face
Nanometer sheet.Therefore, current Bi reported in the literature2O2CO3Pattern is mainly the nanometer sheet of exposure (001) crystal face, or by nanometer
Two dimension or three-dimensional structure made of piece group shape.And study found that the photocatalysis performance of semiconductor light-catalyst to pattern have according to
Lai Xing.So the Bi of synthesis other structures pattern2O2CO3With important theory and realistic meaning.
Summary of the invention
The object of the present invention is to provide a kind of one-dimensional Bi2O2CO3Nanometer rods and preparation method thereof, the one-dimensional Bi2O2CO3It receives
Rice stick has porous structure, has filled up the blank of scientific research, is Bi2O2CO3Research provide new technical support.Moreover, should
Bi2O2CO3One-dimensional nano stick has preferable photocatalysis, therefore, the one-dimensional Bi2O2CO3Nanometer rods have higher again
Practical application value.Moreover, the present invention is prepared for one-dimensional Bi by one-step method2O2CO3Nanometer rods, method is simple, is easy to
Control, application value with higher.
To achieve the goals above, the present invention provides a kind of one-dimensional Bi2O2CO3Nanometer rods, the Bi2O2CO3Nanometer rods
With porous structure.
The present invention also provides a kind of previously described one-dimensional Bi2O2CO3The preparation method of nanometer rods, including by Bi
(OHC2O4)·2H2O nanometer rods presoma is in CO2The step of atmosphere high temperature is calcined.
Through the above technical solutions, the present invention is prepared for one-dimensional Bi by one-step method2O2CO3Nanometer rods, method is simple, easily
In control, application value with higher.Moreover, the present invention overcomes existing technical problems, provide one-dimensional
Bi2O2CO3Nano stick technology of preparing has filled up the blank of scientific research, is Bi2O2CO3Research provide new technical support.
Moreover, the Bi2O2CO3One-dimensional nano stick also has preferable photocatalysis, therefore, and has practical application value.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is calcined product and Bi in embodiment 12O2CO3, Bi2O3The XRD spectrum of standard card.
Fig. 2 is the SEM figure of the calcined product in embodiment 1: 250 DEG C of (A)；(B)300℃； (C)350℃；(D)400℃.
Fig. 3 is the analysis chart of calcined product in embodiment 2: the XRD diagram of (A) calcined product；(B)CO2Flow velocity 5mL/min；
(C)CO2Flow velocity 10mL/min；(D)CO2Flow velocity 20mL/min.
Fig. 4 is the analysis chart of calcined product in embodiment 3: the XRD diagram of (A) calcined product；(B)0 h；(C)1h；(D)3h.
Fig. 5 is the detection and analysis figure detected in example 1: (A) TEM；(B) HRTEM, (C) selective electron diffraction；(D) crystal is raw
It grows to figure.
Fig. 6 is the detection and analysis figure detected in example 1: (A) solid ultraviolet-visible diffusing reflectance spectra；(B) energy band diagram.
Fig. 7 is the detection and analysis figure in application examples 1: the ultraviolet-visible absorption spectroscopy of (A) Visible Light Induced Photocatalytic MB (10mg/L)；
(B) degradation curve of MB (10mg/L).
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
A kind of one-dimensional Bi2O2CO3Nanometer rods, the Bi2O2CO3Nanometer rods have porous one-dimensional rod-like structure.
The present invention overcomes the technology prejudice of the prior art, and the one-dimensional Bi provided2O2CO3Nanometer rods have porous one
Club shaped structure is tieed up, is Bi2O2CO3Research provide new technical support, moreover, the Bi2O2CO3One-dimensional nano stick
With preferable photocatalysis, therefore, the one-dimensional Bi2O2CO3Nanometer rods theory and actual application value with higher.
Preferably, the Bi2O2CO3Nanometer rods expose (120) crystal face, and (120) crystal face is grown along [002] direction.
It is further preferred that the Bi2O2CO3The absorption band edge of nanometer rods extends to visible region.
More it is further preferred that the Bi2O2CO3The band gap Δ E of nanometer rodsgFor 2.96eV.
The present invention also provides a kind of one-dimensional Bi2O2CO3The preparation method of nanometer rods, including by Bi (OHC2O4)·2H2O receives
Rice stick presoma is in CO2The step of atmosphere high temperature is calcined.
In the above-mentioned technical solutions, the present invention is prepared for one-dimensional Bi by one-step method2O2CO3Nanometer rods, method is simple, easily
In control, application value with higher.
In the above-mentioned technical solutions, Bi (OHC2O4)·2H2O nanometer rods can be prepared using the method for the prior art.
And present invention optimizes Bi (OHC2O4)·2H2The preparation method of O, in embodiment later, Bi (OHC2O4)·2H2O is used
Prepared by following method: by the Bi (NO of 2.911g3)3·5H2The NaC of O and 1.206g2O4It is dissolved in 20mL distilled water respectively
Ultrasound, then by NaC2O4Solution is added to Bi (NO3)3·5H2It is vigorously stirred in O solution.Above-mentioned mixed solution is transferred to again
In ptfe autoclave, reacted at 120 DEG C for 24 hours, cooled to room temperature.Product distilled water and dehydrated alcohol difference
After washing 2-3 times, the dry 6h at 60 DEG C.
Wherein, calcination temperature can be selected in a wider scope, in a kind of preferred embodiment of the present invention, be forged
Burning temperature is 200 DEG C -400 DEG C.With this condition, one-dimensional Bi can be prepared2O2CO3Nanometer rods.
In a kind of preferred embodiment of the present invention, when calcination temperature is 300 DEG C -350 DEG C, all diffraction maximums
Both correspond to Bi2O2CO3Base peak, without other impurity peaks occur.Illustrate to obtain at 300 DEG C -350 DEG C pure
Bi2O2CO3。
In a kind of preferred embodiment of the present invention, CO2Flow velocity be 5-20mL/min.When being passed through CO2Flow velocity is
Product is pure Bi when 5mL/min2O2CO3.Work as CO2Occur simple substance Bi's when flow velocity increases to 10-20mL/min, in XRD diagram
Diffraction maximum, and with CO2Flow velocity increases, the diffraction peak intensity enhancing of simple substance Bi.When rate is increased to 10-20mL/min,
Bi2O2CO3There is the appearance of Bi particle on stick, and with CO2Flow velocity increases, and Bi particle is increasing, more and more.
In a kind of preferred embodiment of the present invention, calcination time 1-3h.When calcination time is 0h, Bi2O2CO3One
Some little particles are grown on dimension porous rod, these little particles are simple substance Bi.Extend calcination time to 1-3h, products therefrom is one-dimensional
Nano stick, no Bi particle are grown on porous rod.
The present invention will be described in detail by way of examples below.
Embodiment 1
By 0.1g Bi (OHC2O4)·2H2O nanometer rods presoma is placed in porcelain boat, is equably laid in inside porcelain boat,
Then it promotes in tube furnace.
In CO2Calcining 1h is carried out in 250 DEG C in atmosphere, wherein CO2Flow velocity is 5mL/min.
According to above-mentioned identical method, only adjusting separately calcination temperature is 300 DEG C, 350 DEG C, 400 DEG C.
X-ray diffraction analysis (XRD) is carried out to above-mentioned calcined product, and and Bi2O2CO3And Bi2O3-Standard card carry out
Control, obtains Fig. 1.
It will be seen from figure 1 that diffraction maximum corresponds to Bi when calcination temperature is 250 DEG C2O2CO3 (JCPDS NO.25-
1464).There is the peak of simple substance Bi when the angle of diffraction is 2 θ=28 degree, diffracted intensity is very weak.Illustrate that 250 DEG C of products therefroms are impure.
When calcination temperature is 300 DEG C -350 DEG C, all diffraction maximums both correspond to Bi2O2CO3Base peak, without other impurities
Peak occurs.Illustrate that pure Bi can be obtained at 300 DEG C -350 DEG C2O2CO3.And when calcination temperature is 400 DEG C, in addition to a small amount of
Bi2O2CO3Diffraction maximum, other peaks both correspond to Bi2O3(JCPDS NO.76-1730) standard diffraction peak.Show 350 DEG C-
400 DEG C of products are by Bi2O2CO3Gradually it is converted into pure Bi2O3。
Electron microscope (SEM) analysis is scanned to above-mentioned calcined product, obtains Fig. 2.By Fig. 2 SEM figure as it can be seen that with
Calcination temperature from 250 DEG C -350 DEG C, product Bi2O2CO3It is one-dimensional porous club shaped structure.And when temperature is 400 DEG C, it produces
Object structure is significantly different.Although still one-dimentional structure, pattern is irregular, illustrates Bi2O2CO3Major part is decomposed into Bi2O3.This
As a result it fits like a glove with XRD spectrum.
Embodiment 2
According to the method for embodiment 1, wherein calcination time 1h, calcination temperature is 300 DEG C, and CO2Flow velocity is respectively
5mL/min, 10mL/min and 20mL/min carry out parallel test.
XRD and sem analysis are carried out to calcined product, obtain Fig. 3.As can be seen from Figure 3A, when being passed through CO2Flow velocity is 5mL/
Product is pure Bi when min2O2CO3.Work as CO2Occurs the diffraction of simple substance Bi when flow velocity increases to 10-20mL/min, in XRD diagram
Peak, and with CO2Flow velocity increases, the diffraction peak intensity enhancing of simple substance Bi.The above result shows that working as CO2When flow velocity is 5mL/min,
Available pure Bi2O2CO3。
It can see from Fig. 3 (B-D), CO2When flow velocity is 5mL/min, gained sample is Bi2O2CO3One nanoporous nanometer
Stick, when rate is increased to 10-20mL/min, Bi2O2CO3There is the appearance of Bi particle on stick, and with CO2Flow velocity increases, Bi particle
It is increasing, it is more and more.
Embodiment 3
According to the method for embodiment 1, wherein CO2Flow velocity is respectively 5mL/min, and calcination temperature is 300 DEG C, and when calcining
Between be respectively 0h, 1h and 3h, carry out parallel test.
XRD and sem analysis are carried out to calcined product, obtain Fig. 4.It can see from Fig. 4 A, when calcination temperature is 0h, in addition to
Bi2O2CO3Outside main diffraction peak, also there is the diffraction maximum of simple substance Bi.When calcination temperature is 1-3h, the diffraction maximum of simple substance Bi is complete
It totally disappeared mistake, all diffraction maximums both correspond to Bi2O2CO3(JCPDS NO.25-1464).The above result shows that obtaining pure
Bi2O2CO3One-dimensional nano stick, calcination time at least need 1h.It can see from Fig. 4 (B-D), when calcination time is 0h,
Bi2O2CO3Some little particles are grown on one-dimensional porous rod, are known by Fig. 4 A, these little particles are simple substance Bi.Extend calcination time 1-
3h, products therefrom are one-dimensional nano stick, and no Bi particle is grown on porous rod.
Detect example 1
To in embodiment 1 in CO2Flow velocity is the CO of 5mL/min2The resulting calcining production of calcining 1h is carried out for 300 DEG C in atmosphere
Object is analyzed respectively.
Fig. 5 is Bi2O2CO3The TEM (A) of one-dimensional nano stick, HRTEM (B), selective electron diffraction (C) and crystal growth
To figure (D).From TEM figure as can be seen that Bi2O2CO3For porous one-dimensional rod-like structure, with the result one observed in SEM figure
It causes.Bi2O2CO3In the HRTEM figure of (Fig. 5 B), interplanar distance 0.684nm corresponds to Bi2O2CO3(002) crystal face.Constituency electricity
Sub- diffraction is as shown in Figure 5 C.Occur orderly diffraction spot in selective electron diffraction figure, shows that prepared sample is monocrystalline
Structure.(002) 68 ° of crystal face and (213) crystal face angle, it is very close with calculated value (69 °).Therefore, Bi2O2CO3It is porous
Stick exposes (120) crystal face, grows along [002] direction.
Fig. 6 is Bi2O2CO3The solid ultraviolet-visible diffusing reflectance spectra (A) and energy band diagram (B) of one-dimensional nano stick conventional two
Tie up three-dimensional Bi2O2CO3For wide band gap semiconducter, band gap is about 3.2eV.And the Bi synthesized by us2O2CO3One-dimensional porous rod
It inhales suction belt side and extends to visible region (Fig. 6 A), this implies that it has visible light catalytic performance.Bi2O2CO3The band of one-dimensional porous rod
Gap Δ EgFor 2.96eV (Fig. 6 B), hence it is evident that the band gap magnitude reported less than other documents.
Similarly, to Bi obtained by embodiment 1-32O2CO3One-dimensional nano stick, acquired results and the above results are close, herein
It repeats no more.
Application examples 1
Bi2O2CO3The photocatalysis performance of one-dimensional nano stick is commented by degradation of methylene blue under visible light (MB)
Estimate.The visible light source used is 500W xenon lamp (PLS-SXE 500/500UV, Beijing Trusttech limited liability company).?
In one typical experiment, by the Bi of 30mg2O2CO3Ultrasound a period of time formation in 30mL MB (10mg/L) is added in stick catalyst
Suspension makes the dyestuff of catalyst surface reach adsorption-desorption balance for half-light magnetic agitation 30 minutes, then before illumination
Lamp source is opened, ultraviolet filter is placed immediately below light source, so that wavelength is greater than 400nm, the timing since illumination, at interval of one
The fixed time takes 4mL or so solution, and centrifuge separation, gained filtrate measures the extinction of solution with UV-756 type ultraviolet specrophotometer
Degree.
As a result as shown in fig. 7, Fig. 7 (A) is the ultraviolet-visible absorption spectroscopy of Visible Light Induced Photocatalytic MB (10mg/L), (B) is MB
The degradation curve of (10mg/L).Bi2O2CO3Excellent visible light catalysis activity is shown, drops MB (10mg/L) in 40 minutes
Solution 86%.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (10)
1. a kind of one-dimensional Bi2O2CO3Nanometer rods, which is characterized in that the Bi2O2CO3Nanometer rods have porous one-dimensional rod-like knot
Structure.
2. one-dimensional Bi according to claim 12O2CO3Nanometer rods, wherein the Bi2O2CO3Nanometer rods exposure (120) is brilliant
Face, and (120) crystal face is grown along [002] direction.
3. one-dimensional Bi according to claim 22O2CO3Nanometer rods, wherein the Bi2O2CO3The absorption band edge of nanometer rods prolongs
Reach visible region.
4. one-dimensional Bi according to claim 32O2CO3Nanometer rods, wherein the Bi2O2CO3The band gap Δ E of nanometer rodsgFor
2.96eV。
5. a kind of described in any item one-dimensional Bi of claim 1-42O2CO3The preparation method of nanometer rods, which is characterized in that including
By Bi (OHC2O4)·2H2O nanometer rods presoma is in CO2The step of atmosphere high temperature is calcined.
6. preparation method according to claim 5, wherein calcination temperature is 200 DEG C -400 DEG C.
7. preparation method according to claim 5, wherein calcination temperature is 300 DEG C -350 DEG C.
8. preparation method according to claim 5, wherein CO2Flow velocity be 5-20mL/min.
9. preparation method according to claim 8, wherein CO2Flow velocity be 5-10mL/min.
10. preparation method according to claim 5, wherein calcination time 1-3h.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708551A (en) * | 2013-12-26 | 2014-04-09 | 湛江师范学院 | Preparation method of bismuth oxycarbonate flower-like microsphere thermally synthesized by ethylene glycol-water mixed solvent |
| CN104667878A (en) * | 2015-01-21 | 2015-06-03 | 安徽师范大学 | Bi2O2CO3-Bi(OHC2O4).2H2O heterojunction and preparation method and application thereof |
| CN107162059A (en) * | 2017-06-13 | 2017-09-15 | 浙江大学 | One kind prepares sheet Bi2WO6Method |
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- 2019-04-18 CN CN201910311695.8A patent/CN109967109B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103708551A (en) * | 2013-12-26 | 2014-04-09 | 湛江师范学院 | Preparation method of bismuth oxycarbonate flower-like microsphere thermally synthesized by ethylene glycol-water mixed solvent |
| CN104667878A (en) * | 2015-01-21 | 2015-06-03 | 安徽师范大学 | Bi2O2CO3-Bi(OHC2O4).2H2O heterojunction and preparation method and application thereof |
| CN107162059A (en) * | 2017-06-13 | 2017-09-15 | 浙江大学 | One kind prepares sheet Bi2WO6Method |
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