CN107961791A - The preparation method of titanium dioxide nano thread based on hydro-thermal method - Google Patents
The preparation method of titanium dioxide nano thread based on hydro-thermal method Download PDFInfo
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- CN107961791A CN107961791A CN201610910606.8A CN201610910606A CN107961791A CN 107961791 A CN107961791 A CN 107961791A CN 201610910606 A CN201610910606 A CN 201610910606A CN 107961791 A CN107961791 A CN 107961791A
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000001027 hydrothermal synthesis Methods 0.000 title claims abstract description 13
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 12
- 239000002070 nanowire Substances 0.000 claims abstract description 29
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 10
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 10
- 239000010936 titanium Substances 0.000 claims abstract description 10
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004332 silver Substances 0.000 claims abstract description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 7
- 239000008367 deionised water Substances 0.000 claims abstract description 5
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 5
- 239000012153 distilled water Substances 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 5
- 239000012299 nitrogen atmosphere Substances 0.000 claims abstract description 5
- 229910052709 silver Inorganic materials 0.000 claims abstract description 5
- 239000000376 reactant Substances 0.000 claims abstract 2
- 101710134784 Agnoprotein Proteins 0.000 claims description 2
- 238000007146 photocatalysis Methods 0.000 abstract description 6
- 230000001699 photocatalysis Effects 0.000 abstract description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000012149 noodles Nutrition 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000006557 surface reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution Methods 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/48—Silver or gold
- B01J23/50—Silver
-
- 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
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
-
- 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
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of preparation method of the titanium dioxide nano thread based on hydro-thermal method, including：Titanium sheet, be cleaned by ultrasonic by S1 in acetone and ethanol respectively, and dries in a nitrogen atmosphere；Titanium sheet, be placed into using polytetrafluoroethylene (PTFE) as in the reaction kettle of liner by S2, and is heated, and then takes out reactant, is soaked in hydrochloric acid solution, and is cleaned with deionized water, obtains one-dimensional TiO2Nano wire；S3, by AgNO3, ethanol, distilled water and one-dimensional TiO2Nano wire mixing is in solution, and nitrogen is then led into solution, and 2~5h of ultraviolet irradiation, is washed with deionized, dries, and the one-dimensional TiO of modified by silver is made2Nano wire.The present invention can quickly prepare caliber, pipe range and the adjustable one-dimensional TiO of wall thickness2Nano wire, nano wire obtained by hydro-thermal method possess more reaction sites and more excellent modifiability energy；The one-dimensional TiO of modified by silver2Nano wire can consume light induced electron so that the rate of load condensate of electron hole is reduced, so as to improve photocatalysis performance.
Description
Technical field
The present invention relates to semiconductor light-catalyst technical field, is received more particularly to a kind of titanium dioxide based on hydro-thermal method
The preparation method of rice noodles.
Background technology
With expanding economy, water pollution situation is serious all the more, and photocatalysis technology is at waste water developed in recent years
Reason technology.Photochemical catalyst is the material for causing catalytic reaction under light irradiation, and by light-catalyzed reaction, generation has Strong oxdiative ability
Hydroxyl radical free radical and super oxonium ion, come decomposing organic pollutant matter of degrading.
Titanium dioxide (TiO2) it is a kind of most extensive semiconductor light-catalyst, it is widely used in photocatalysis field.
But TiO2Greater band gap, can only show photochemical activity in ultra-violet (UV) band of the wavelength less than 378nm, while its photoelectron and hole hold
Easily occur it is compound, so as to reduce photocatalysis efficiency.
TiO2Nano material such as nano wire, nanotube, can be with than the surface area and volume ratio that common nanoparticle has higher
Of a relatively high avtive spot density is provided, be conducive to surface reaction occur and sensitizer load, and one-dimensional make its
Photo-generated carrier is separated possesses faster charge carrier transport speed with transfer device application.Also just because of these are excellent
Gesture, nano-TiO2Synthesis obtain it is continual concern and break through, this has also pushed directly on TiO2The extensive use of material.
Divided according to Spatial Dimension, TiO2Nano material can simply be divided into one-dimensional, two and three dimensions nano material, wherein one-dimentional structure
More it is widely applied.
Therefore, in view of the above-mentioned problems, being necessary to propose a kind of preparation method of the titanium dioxide nano thread based on hydro-thermal method.
The content of the invention
In view of this, the present invention provides a kind of preparation method of the titanium dioxide nano thread based on hydro-thermal method.
In order to realize foregoing invention purpose, the present invention provides a kind of preparation side of the titanium dioxide nano thread based on hydro-thermal method
Method, it is characterised in that the preparation method includes：
Titanium sheet, be cleaned by ultrasonic by S1 in acetone and ethanol respectively, and dries in a nitrogen atmosphere；
Titanium sheet, be placed into using polytetrafluoroethylene (PTFE) as in the reaction kettle of liner by S2, and is heated, then will reaction
Thing takes out, and is soaked in hydrochloric acid solution, and is cleaned with deionized water, obtains one-dimensional TiO2Nano wire；
S3, by AgNO3, ethanol, distilled water and one-dimensional TiO2Nano wire mixing is in solution, and nitrogen is then led into solution, purple
2~5h of external exposure, is washed with deionized, dries, and the one-dimensional TiO of modified by silver is made2Nano wire.
As a further improvement on the present invention, the step S2 is further included：
By one-dimensional TiO2Nano wire sinters 2h at 200 DEG C.
As a further improvement on the present invention, the AgNO in the step S33With one-dimensional TiO2The mass ratio of nano wire is 1:
5~2:3.
As a further improvement on the present invention, the power of ultraviolet irradiation is 800W, irradiation time 2h in the step S2.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention can quickly prepare caliber, pipe range and the adjustable one-dimensional TiO of wall thickness2Nano wire, hydro-thermal method gained are received
Rice noodles possess more reaction sites and more excellent modifiability energy；The one-dimensional TiO of modified by silver2Nano wire can consume photoproduction electricity
Son so that the rate of load condensate of electron-hole is reduced, so as to improve photocatalysis performance.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in invention, for those of ordinary skill in the art, without creative efforts,
Other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the flow diagram of the preparation method of titanium dioxide nano thread in the present invention.
Embodiment
The technical solution in the embodiment of the present invention will be described in detail below, it is clear that described embodiment is only
Only it is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained on the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
Join shown in Fig. 1, a kind of preparation method of the titanium dioxide nano thread based on hydro-thermal method in the present invention, including：
Titanium sheet, be cleaned by ultrasonic by S1 in acetone and ethanol respectively, and dries in a nitrogen atmosphere；
Titanium sheet, be placed into using polytetrafluoroethylene (PTFE) as in the reaction kettle of liner by S2, and is heated, then will reaction
Thing takes out, and is soaked in hydrochloric acid solution, and is cleaned with deionized water, obtains one-dimensional TiO2Nano wire；
S3, by AgNO3, ethanol, distilled water and one-dimensional TiO2Nano wire mixing is in solution, and nitrogen is then led into solution, purple
2~5h of external exposure, is washed with deionized, dries, and the one-dimensional TiO of modified by silver is made2Nano wire.
Specifically, in a preferred embodiment, the preparation method of the titanium dioxide nano thread based on hydro-thermal method, bag
Include：
Titanium sheet, be cleaned by ultrasonic by S1 in acetone and ethanol respectively, and dries in a nitrogen atmosphere；
Titanium sheet, be placed into using polytetrafluoroethylene (PTFE) as in the reaction kettle of liner by S2, and is heated, then will reaction
Thing takes out, and is soaked in hydrochloric acid solution, and is cleaned with deionized water, obtains one-dimensional TiO2Nano wire, then by one-dimensional TiO2
Nano wire sinters 2h at 200 DEG C；
S3, by AgNO3, ethanol, distilled water and one-dimensional TiO2Nano wire mixing is in solution, AgNO3With one-dimensional TiO2Nano wire
Mass ratio be 1:5~2:3, nitrogen is then led into solution, ultraviolet irradiation 2h, the power of ultraviolet irradiation is 800W deionizations
Water washing, drying, are made the one-dimensional TiO of modified by silver2Nano wire.
As can be seen from the above technical solutions, it is adjustable one-dimensional can quickly to prepare caliber, pipe range and wall thickness by the present invention
TiO2Nano wire, nano wire obtained by hydro-thermal method possess more reaction sites and more excellent modifiability energy；The one of modified by silver
Tie up TiO2Nano wire can consume light induced electron so that the rate of load condensate of electron-hole is reduced, so as to improve photocatalysis performance.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solution in each embodiment can also be closed through appropriate, and forming those skilled in the art can
With the other embodiment of understanding.
Claims (4)
1. a kind of preparation method of the titanium dioxide nano thread based on hydro-thermal method, it is characterised in that the preparation method includes：
Titanium sheet, be cleaned by ultrasonic by S1 in acetone and ethanol respectively, and dries in a nitrogen atmosphere；
Titanium sheet, be placed into using polytetrafluoroethylene (PTFE) as in the reaction kettle of liner by S2, and is heated, and then takes reactant
Go out, soaked in hydrochloric acid solution, and cleaned with deionized water, obtain one-dimensional TiO2Nano wire；
S3, by AgNO3, ethanol, distilled water and one-dimensional TiO2Nano wire mixing is in solution, and nitrogen, ultraviolet photograph are then led into solution
2~5h is penetrated, is washed with deionized, dries, the one-dimensional TiO of modified by silver is made2Nano wire.
2. preparation method according to claim 1, it is characterised in that the step S2 is further included：：
By one-dimensional TiO2Nano wire sinters 2h at 200 DEG C.
3. preparation method according to claim 1, it is characterised in that the AgNO in the step S33With one-dimensional TiO2Nanometer
The mass ratio of line is 1:5~2:3.
4. preparation method according to claim 1, it is characterised in that the power of ultraviolet irradiation is in the step S2
800W, irradiation time 2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610910606.8A CN107961791A (en) | 2016-10-19 | 2016-10-19 | The preparation method of titanium dioxide nano thread based on hydro-thermal method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610910606.8A CN107961791A (en) | 2016-10-19 | 2016-10-19 | The preparation method of titanium dioxide nano thread based on hydro-thermal method |
Publications (1)
| Publication Number | Publication Date |
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| CN107961791A true CN107961791A (en) | 2018-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610910606.8A Withdrawn CN107961791A (en) | 2016-10-19 | 2016-10-19 | The preparation method of titanium dioxide nano thread based on hydro-thermal method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279250A (en) * | 2008-02-01 | 2008-10-08 | 浙江大学 | Load type nitrogen intermingle with one-dimensional structure TiO2 and preparation method thereof |
| CN102061502A (en) * | 2010-12-16 | 2011-05-18 | 西南交通大学 | Method for preparing substrate-free TiO2 nanotube/nanowire composite array transparent film through synchronous crystallization |
| CN102826600A (en) * | 2012-09-20 | 2012-12-19 | 电子科技大学 | Method for preparing titanium dioxide nanowire |
-
2016
- 2016-10-19 CN CN201610910606.8A patent/CN107961791A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279250A (en) * | 2008-02-01 | 2008-10-08 | 浙江大学 | Load type nitrogen intermingle with one-dimensional structure TiO2 and preparation method thereof |
| CN102061502A (en) * | 2010-12-16 | 2011-05-18 | 西南交通大学 | Method for preparing substrate-free TiO2 nanotube/nanowire composite array transparent film through synchronous crystallization |
| CN102826600A (en) * | 2012-09-20 | 2012-12-19 | 电子科技大学 | Method for preparing titanium dioxide nanowire |
Non-Patent Citations (2)
| Title |
|---|
| 朱燕峰: ""水热法制备TiO2纳米线薄膜的光生阴极保护性能"", 《物理化学学报》 * |
| 王小件: ""一维二氧化钛的制备及Ag、Au纳米颗粒对其表面修饰"", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
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