CN108355684A - A kind of nano bar-shape BiOI photochemical catalysts and preparation method thereof - Google Patents
A kind of nano bar-shape BiOI photochemical catalysts and preparation method thereof Download PDFInfo
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- CN108355684A CN108355684A CN201810177484.5A CN201810177484A CN108355684A CN 108355684 A CN108355684 A CN 108355684A CN 201810177484 A CN201810177484 A CN 201810177484A CN 108355684 A CN108355684 A CN 108355684A
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- bioi
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- 239000003054 catalyst Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 18
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 18
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 18
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000005642 Oleic acid Substances 0.000 claims abstract description 18
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 18
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000007062 hydrolysis Effects 0.000 claims abstract description 6
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Substances [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims abstract description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 6
- 235000019441 ethanol Nutrition 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000003197 catalytic effect Effects 0.000 abstract description 5
- 238000001556 precipitation Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000001699 photocatalysis Effects 0.000 description 9
- PPNKDDZCLDMRHS-UHFFFAOYSA-N dinitrooxybismuthanyl nitrate Chemical compound [Bi+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PPNKDDZCLDMRHS-UHFFFAOYSA-N 0.000 description 5
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000001027 hydrothermal synthesis Methods 0.000 description 3
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 3
- 229940012189 methyl orange Drugs 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000006303 photolysis reaction Methods 0.000 description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- HXELGNKCCDGMMN-UHFFFAOYSA-N [F].[Cl] Chemical compound [F].[Cl] HXELGNKCCDGMMN-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- 238000007540 photo-reduction reaction Methods 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- 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
- B01J27/06—Halogens; Compounds thereof
- B01J27/08—Halides
-
- B01J35/39—
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The invention discloses a kind of preparation methods of nano bar-shape BiOI photochemical catalysts, include the following steps：By Bi (NO3)3It is dissolved completely in oleic acid, KI is then added, stir 7~13 days, water is then added, hydrolysis generates BiOI, is then centrifuged for, takes precipitation, washs, and dries to get the nano bar-shape BiOI photochemical catalysts；Bi (the NO3)3：Oleic acid：KI：Water=(1.0~2.0) g：(35~65) mL：(0.35~0.65) g：(7~13) mL, wherein Bi (NO3)3By weight with KI, oleic acid and water is in terms of volume.The present invention is with Bi (NO3)3It is raw material with KI, is sufficiently stirred in oleic acid, is hydrolyzed under normal temperature and pressure and nano bar-shape BiOI photochemical catalysts are prepared.The preparation method processing safety of the present invention is high, and energy consumption is small, and the requirement to consersion unit is simple, and manufacturing cost is low, can constantly observing response process；The nano bar-shape BiOI photochemical catalysts made from preparation method of the present invention have high surface area and excellent catalytic performance.
Description
Technical field
The present invention relates to a kind of photochemical catalysts more particularly to a kind of nano bar-shape BiOI photochemical catalysts and preparation method thereof.
Background technology
Nowadays, environmental pollution and energy shortage are the two big challenges that human kind sustainable development faces.Semiconductor light-catalyst
Cheap, cleaning, reproducible solar energy can be stored and be converted, photolysis water hydrogen, photo-reduction CO are widely used in2It makes renewable
Fuel (CH3OH、CH4And CO) and the fields such as photodissociation organic pollution.
In recent years, BiOX (BiOX, X=Cl, Br, I) photochemical catalyst is caused due to its higher photocatalytic activity
The extensive concern of people.It is by double XSheath and Bi2O2The layer structure that layer is alternately arranged composition can generate internal electric field, have
Conducive to photo-generate electron-hole to efficiently separating, the electrons and holes that are detached must could be by some gaps of structure
Row is compound, and recombination rate substantially reduces, therefore photocatalytic activity is higher.The BiOX of layer structure can provide sufficiently large spatial polarizations
Relevant atom and track；Induced dipoles can efficiently separate electron hole pair, improve photocatalytic activity.Stratiform pros fluorine chlorine
The BiOX compounds of lead ore type possess preferable optics, electricity and magnetic property, have been widely used in catalysis, ion is led
Body, the color-changing device of light, ferroelectric material, dyestuff and solar cell.Because BiOX Uv and visible light irradiation under have compared with
Good photocatalytic activity, so being up-and-coming photochemical catalyst.
The distinct methods report of photocatalytic activity much is improved about pure BiOX samples are prepared currently, having, but still
So need to further increase its photocatalysis efficiency in order to practical application.Up to now, although a variety of different BiOI stratiforms are received
Rice structure has been synthesized and applied to the photocatalytic process under the irradiation of ultraviolet or UV, visible light, but will be by simple and effective
Method synthesis have morphology controllable with compared with high visible photocatalytic activity BiOI layered nano-structures be still one challenge.
The prior art need to generally carry out hydro-thermal reaction when preparing nanometer BiOI photochemical catalysts.Since hydro-thermal reaction is pyroreaction, danger
Dangerous big, energy consumption is big, and manufacturing cost is high, it is difficult to large-scale industrial production.And hydro-thermal method prepare the theoretical modeling of BiOX with
Analysis difficulty, poor reproducibility, the requirement to consersion unit are high, it is difficult to constantly observe, parameter adjusts difficult.
Invention content
It is an object of the invention to solve above-mentioned shortcoming and defect of the existing technology, a kind of nano bar-shape BiOI is provided
Photochemical catalyst and preparation method thereof.
To solve its technical problem, the technical solution adopted in the present invention is：A kind of nano bar-shape BiOI photochemical catalysts
Preparation method includes the following steps：By Bi (NO3)3It is dissolved completely in oleic acid, KI is then added, stir 7~13 days, then add
Enter water, hydrolysis generates BiOI, is then centrifuged for, takes precipitation, washs, and dries to get the nano bar-shape BiOI photochemical catalysts；It is described
Bi(NO3)3：Oleic acid：KI：Water=(1.0~2.0) g：(35~65) mL：(0.35~0.65) g：(7~13) mL, wherein Bi
(NO3)3By weight with KI, oleic acid and water is in terms of volume.
Preferably, the washing is washed 3~5 times respectively using ethyl alcohol and n-hexane.
Preferably, the temperature of the drying is 60 DEG C, and drying time is 10~15h.
Preferably, the Bi (NO3)3：Oleic acid：KI：Water=1.5g：50mL：0.5g：10mL, wherein Bi (NO3)3And KI
By weight, oleic acid and water is in terms of volume.
The present invention also provides a kind of nano bar-shape BiOI photochemical catalysts, by the system of above-mentioned nano bar-shape BiOI photochemical catalysts
Preparation Method is made.
Compared with prior art, beneficial effects of the present invention are：The present invention is with Bi (NO3)3It is raw material with KI, in oleic acid
It is sufficiently stirred, is hydrolyzed under normal temperature and pressure and nano bar-shape BiOI photochemical catalysts are prepared.The preparation method safe operation of the present invention
Property it is high, energy consumption is small, and the requirement to consersion unit is simple, and manufacturing cost is low, can constantly observing response process；By preparation side of the invention
Nano bar-shape BiOI photochemical catalysts made from method have high surface area and excellent catalytic performance.
Description of the drawings
Fig. 1 is the scanning electron microscope (SEM) photograph of the nano bar-shape BiOI photochemical catalysts of the embodiment of the present invention 1；
Fig. 2 is the scanning electron microscope (SEM) photograph of the nano bar-shape BiOI photochemical catalysts of the embodiment of the present invention 1；
Fig. 3 is the scanning electron microscope (SEM) photograph of the nano bar-shape BiOI photochemical catalysts of the embodiment of the present invention 1；
Fig. 4 be the embodiment of the present invention 1 nano bar-shape BiOI photochemical catalysts degrade under visible light methyl orange catalysis live
Property figure.
Specific implementation mode
Embodiment 1
The present embodiment 1 provides a kind of preparation method of nano bar-shape BiOI photochemical catalysts, includes the following steps：By 1.5g
Bi(NO3)3It is dissolved in 50mL oleic acid, 0.5g KI is added after being completely dissolved, stir 10 days, 10mL water is then added, hydrolysis generates
BiOI is then centrifuged for, and takes precipitation, after washing 3 times respectively with ethyl alcohol and n-hexane successively, is put into 60 DEG C of baking ovens dry 12h, i.e.,
Obtain the nano bar-shape BiOI photochemical catalysts.
Embodiment 2
The present embodiment 2 provides a kind of preparation method of nano bar-shape BiOI photochemical catalysts, includes the following steps：By 1.0g
Bi(NO3)3It is dissolved in 35mL oleic acid, 0.35g KI is added after being completely dissolved, stir 7 days, 7mL water is then added, hydrolysis generates
BiOI is then centrifuged for, and takes precipitation, after washing 3 times respectively with ethyl alcohol and n-hexane successively, is put into 60 DEG C of baking ovens dry 10h, i.e.,
Obtain the nano bar-shape BiOI photochemical catalysts.
Embodiment 3
The present embodiment 3 provides a kind of preparation method of nano bar-shape BiOI photochemical catalysts, includes the following steps：By 2.0g
Bi(NO3)3It is dissolved in 65mL oleic acid, 0.65g KI is added after being completely dissolved, stir 13 days, 13mL water is then added, hydrolysis generates
BiOI is then centrifuged for, and takes precipitation, after washing 5 times respectively with ethyl alcohol and n-hexane successively, is put into 60 DEG C of baking ovens dry 15h, i.e.,
Obtain the nano bar-shape BiOI photochemical catalysts.
Nano bar-shape BiOI photochemical catalysts made from embodiment are tested for the property：
1. surface topography
Fig. 1-3 is the different multiples scanning electron microscope (SEM) photograph of the nano bar-shape BiOI photochemical catalysts of embodiment 1, can from Fig. 1-3
The shape for going out the nano bar-shape BiOI photochemical catalysts of embodiment 1 is rodlike, has high surface area, good dispersion.
2. photocatalytic activity
The nano bar-shape BiOI photochemical catalysts for testing Examples 1 to 3 are degraded the catalytic activity of methyl orange under visible light.
The results show that the nano bar-shape BiOI photochemical catalysts of Examples 1 to 3 all have the catalysis better than nano-sheet BiOI photochemical catalysts
Performance.
Wherein, Fig. 4 is that the nano bar-shape BiOI photochemical catalysts of embodiment 1 are degraded the catalytic activity of methyl orange under visible light
Figure, as can be seen from Figure 4, nano bar-shape BiOI photochemical catalysts of the invention have good catalytic activity.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than is protected to the present invention
The limitation of range is protected, although being explained in detail to the present invention with reference to preferred embodiment, those skilled in the art should
Understand, technical scheme of the present invention can be modified or replaced equivalently, without departing from the essence of technical solution of the present invention
And range.
Claims (5)
1. a kind of preparation method of nano bar-shape BiOI photochemical catalysts, which is characterized in that include the following steps：By Bi (NO3)3It is complete
Then KI is added in oleic acid in fully dissolved, stir 7~13 days, and water is then added, and hydrolysis generates BiOI, is then centrifuged for, it is heavy to take
It forms sediment, washing is dried to get the nano bar-shape BiOI photochemical catalysts；Bi (the NO3)3：Oleic acid：KI：Water=(1.0~2.0)
g：(35~65) mL：(0.35~0.65) g：(7~13) mL, wherein Bi (NO3)3By weight with KI, oleic acid and water are with body
Product calculates.
2. the preparation method of nano bar-shape BiOI photochemical catalysts as described in claim 1, which is characterized in that the washing uses
Ethyl alcohol and n-hexane wash 3~5 times respectively.
3. the preparation method of nano bar-shape BiOI photochemical catalysts as described in claim 1, which is characterized in that the temperature of the drying
Degree is 60 DEG C, and drying time is 10~15h.
4. such as the preparation method of claims 1 to 3 any one of them nano bar-shape BiOI photochemical catalysts, which is characterized in that institute
State Bi (NO3)3：Oleic acid：KI：Water=1.5g：50mL：0.5g：10mL, wherein Bi (NO3)3By weight with KI, oleic acid and
Water is in terms of volume.
5. a kind of nano bar-shape BiOI photochemical catalysts, which is characterized in that by Claims 1 to 4 any one of them preparation method
It is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810177484.5A CN108355684B (en) | 2018-03-02 | 2018-03-02 | Nanorod-shaped BiOI photocatalyst and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810177484.5A CN108355684B (en) | 2018-03-02 | 2018-03-02 | Nanorod-shaped BiOI photocatalyst and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108355684A true CN108355684A (en) | 2018-08-03 |
| CN108355684B CN108355684B (en) | 2020-06-02 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112895A (en) * | 2013-02-22 | 2013-05-22 | 厦门大学 | Method for preparing ring-shaped bismuth oxyiodide (BiOI) microspheres |
| CN104368362A (en) * | 2014-09-18 | 2015-02-25 | 太原理工大学 | Microemulsion-like photocatalyst, preparation method and applications thereof |
| CN104475132A (en) * | 2014-11-26 | 2015-04-01 | 安徽工业大学 | Preparation method of flower-like BiOBr and application of flower-like BiOBr in rhodamine degradation reaction |
| CN105562040A (en) * | 2016-01-11 | 2016-05-11 | 安徽工业大学 | Preparation and application of BiOCl-(001)/GO nano-composite photocatalyst |
-
2018
- 2018-03-02 CN CN201810177484.5A patent/CN108355684B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112895A (en) * | 2013-02-22 | 2013-05-22 | 厦门大学 | Method for preparing ring-shaped bismuth oxyiodide (BiOI) microspheres |
| CN104368362A (en) * | 2014-09-18 | 2015-02-25 | 太原理工大学 | Microemulsion-like photocatalyst, preparation method and applications thereof |
| CN104475132A (en) * | 2014-11-26 | 2015-04-01 | 安徽工业大学 | Preparation method of flower-like BiOBr and application of flower-like BiOBr in rhodamine degradation reaction |
| CN105562040A (en) * | 2016-01-11 | 2016-05-11 | 安徽工业大学 | Preparation and application of BiOCl-(001)/GO nano-composite photocatalyst |
Non-Patent Citations (1)
| Title |
|---|
| 朵芳芳: "BiOI光催化剂的稳定性及BiOBr (Cl)的性能强化研究", 《中国优秀博士学位论文全文数据库 工程科技I辑》 * |
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