CN107961805A - The TiO of N doping2The preparation method of nano-wire array - Google Patents
The TiO of N doping2The preparation method of nano-wire array Download PDFInfo
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- CN107961805A CN107961805A CN201610911325.4A CN201610911325A CN107961805A CN 107961805 A CN107961805 A CN 107961805A CN 201610911325 A CN201610911325 A CN 201610911325A CN 107961805 A CN107961805 A CN 107961805A
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- tio
- nano
- wire array
- doping
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- 239000002070 nanowire Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 25
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000004094 surface-active agent Substances 0.000 claims abstract description 12
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000908 ammonium hydroxide Substances 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 8
- 241000370738 Chlorion Species 0.000 claims abstract description 5
- 239000008367 deionised water Substances 0.000 claims abstract description 5
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000000376 reactant Substances 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 230000035484 reaction time Effects 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 238000007146 photocatalysis Methods 0.000 abstract description 6
- 230000001699 photocatalysis Effects 0.000 abstract description 6
- 238000001027 hydrothermal synthesis Methods 0.000 abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- -1 Hydroxyl radical free radical Chemical class 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000000463 material Substances 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
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 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
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution 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
- B01J27/24—Nitrogen compounds
-
- 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
- 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)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention discloses a kind of TiO of N doping2The preparation method of nano-wire array, including：S1, by TiO2After powder, surfactant are mixed with aqueous slkali, it is placed in autoclave, 1~24h of hydro-thermal reaction is carried out at 200~250 DEG C；Autoclave, is cooled to 20 DEG C by S2, and solid reactant therein is washed with ethanol and deionized water successively and removes surfactant, adjusts pH to 6~8, then removing chlorion is washed with deionized, and TiO is obtained after drying2Nano-wire array；S3, by TiO2Nano-wire array is positioned in tube furnace, and ammonium hydroxide is passed through into tube furnace, and heating makes ammonium hydroxide volatilize, with TiO2N doping is carried out in nano-wire array, obtains the TiO of N doping2Nano-wire array.The present invention can quickly prepare caliber, pipe range and the adjustable one-dimensional TiO of wall thickness2Nano wire；The one-dimensional TiO of nitrogen modification2Nano wire possesses the carrier transport ability of higher, so as to improve photocatalysis performance.
Description
Technical field
The present invention relates to semiconductor light-catalyst technical field, more particularly to a kind of TiO of N doping2Nano-wire array
Preparation method.
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 TiO of N doping2The preparation method of nano-wire array.
The content of the invention
In view of this, the present invention provides a kind of TiO of N doping2The preparation method of nano-wire array.
In order to realize foregoing invention purpose, the present invention provides a kind of TiO of N doping2The preparation method of nano-wire array,
The preparation method includes：
S1, by TiO2After powder, surfactant are mixed with aqueous slkali, be placed in autoclave, at 200~250 DEG C into
1~24h of row hydro-thermal reaction；
Autoclave, is cooled to 20 DEG C by S2, and solid reactant therein is washed removing with ethanol and deionized water successively
Surfactant, adjusts pH to 6~8, then removing chlorion is washed with deionized, and TiO is obtained after drying2Nano-wire array；
S3, by TiO2Nano-wire array is positioned in tube furnace, and ammonium hydroxide is passed through into tube furnace, and heating waves ammonium hydroxide
Hair, with TiO2N doping is carried out in nano-wire array, obtains the TiO of N doping2Nano-wire array.
As a further improvement on the present invention, aqueous slkali is KOH or NaOH solution in the step S1, concentration for 1~
10M。
As a further improvement on the present invention, TiO in the step S12The dosage of powder, surfactant and aqueous slkali
Than for 0.5~1g：2~4g：1~50mL.
As a further improvement on the present invention, the step S1 mesohigh kettles hydrothermal temperature is 220 DEG C, the reaction time
For 20h.
As a further improvement on the present invention, the temperature of N doping is 400 DEG C in the step S3, doping time 5h.
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；Nitrogen is modified one-dimensional
TiO2Nano wire possesses the carrier transport ability of higher, 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 TiO of N doping in the present invention2The flow diagram of the preparation method of nano-wire array.
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 TiO of N doping in the present invention2The preparation method of nano-wire array, specifically includes：
S1, by TiO2After powder, surfactant are mixed with aqueous slkali, be placed in autoclave, at 200~250 DEG C into
1~24h of row hydro-thermal reaction；
Autoclave, is cooled to 20 DEG C by S2, and solid reactant therein is washed removing with ethanol and deionized water successively
Surfactant, adjusts pH to 6~8, then removing chlorion is washed with deionized, and TiO is obtained after drying2Nano-wire array；
S3, by TiO2Nano-wire array is positioned in tube furnace, and ammonium hydroxide is passed through into tube furnace, and heating waves ammonium hydroxide
Hair, with TiO2N doping is carried out in nano-wire array, obtains the TiO of N doping2Nano-wire array.
Specifically, in a preferred embodiment, the TiO of N doping2The preparation method of nano-wire array, specific bag
Include：
S1, by TiO2After powder, surfactant are mixed with aqueous slkali, be placed in autoclave, at 200~250 DEG C into
Row 1~24h of hydro-thermal reaction, wherein, aqueous slkali is KOH or NaOH solution, and concentration is 1~10M；TiO2Powder, surfactant
Amount ratio with aqueous slkali is 0.5~1g：2~4g：1~50mL；Autoclave hydrothermal temperature is 220 DEG C, and the reaction time is
20h；
Autoclave, is cooled to 20 DEG C by S2, and solid reactant therein is washed removing with ethanol and deionized water successively
Surfactant, adjusts pH to 6~8, then removing chlorion is washed with deionized, and TiO is obtained after drying2Nano-wire array；
S3, by TiO2Nano-wire array is positioned in tube furnace, and ammonium hydroxide is passed through into tube furnace, and heating waves ammonium hydroxide
Hair, with TiO2N doping is carried out in nano-wire array, the temperature of N doping is 400 DEG C, and doping time 5h, obtains N doping
TiO2Nano-wire array.
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；The one-dimensional TiO of nitrogen modification2Nano wire possesses the carrier transport ability of higher, 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 (5)
- A kind of 1. TiO of N doping2The preparation method of nano-wire array, it is characterised in that the preparation method includes：S1, by TiO2After powder, surfactant are mixed with aqueous slkali, it is placed in autoclave, hydro-thermal is carried out at 200~250 DEG C React 1~24h；Autoclave, is cooled to 20 DEG C by S2, and solid reactant therein is washed with ethanol and deionized water successively and removes surface Activating agent, adjusts pH to 6~8, then removing chlorion is washed with deionized, and TiO is obtained after drying2Nano-wire array；S3, by TiO2Nano-wire array is positioned in tube furnace, and ammonium hydroxide is passed through into tube furnace, heating ammonium hydroxide is volatilized, with TiO2N doping is carried out in nano-wire array, obtains the TiO of N doping2Nano-wire array.
- 2. preparation method according to claim 1, it is characterised in that aqueous slkali is molten for KOH or NaOH in the step S1 Liquid, concentration are 1~10M.
- 3. preparation method according to claim 2, it is characterised in that TiO in the step S12Powder, surfactant with The amount ratio of aqueous slkali is 0.5~1g：2~4g：1~50mL.
- 4. preparation method according to claim 1, it is characterised in that the step S1 mesohighs kettle hydrothermal temperature is 220 DEG C, reaction time 20h.
- 5. preparation method according to claim 1, it is characterised in that the temperature of N doping is 400 DEG C in the step S3, Doping time is 5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911325.4A CN107961805A (en) | 2016-10-20 | 2016-10-20 | The TiO of N doping2The preparation method of nano-wire array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610911325.4A CN107961805A (en) | 2016-10-20 | 2016-10-20 | The TiO of N doping2The preparation method of nano-wire array |
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| Publication Number | Publication Date |
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| CN107961805A true CN107961805A (en) | 2018-04-27 |
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| CN201610911325.4A Pending CN107961805A (en) | 2016-10-20 | 2016-10-20 | The TiO of N doping2The preparation method of nano-wire array |
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Citations (4)
| 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 |
| CN101814375A (en) * | 2009-02-25 | 2010-08-25 | 清华大学 | Preparation method of nitrogen-doped titanium dioxide nano line electrode |
| CN102826600A (en) * | 2012-09-20 | 2012-12-19 | 电子科技大学 | Method for preparing titanium dioxide nanowire |
| CN104001504A (en) * | 2014-05-13 | 2014-08-27 | 河海大学 | Preparation method for silver and graphene co-modified TiO2 nanowire and application of silver and graphene co-modified TiO2 nanowire in photocatalytic degradation of pollutants in waste water |
-
2016
- 2016-10-20 CN CN201610911325.4A patent/CN107961805A/en active Pending
Patent Citations (4)
| 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 |
| CN101814375A (en) * | 2009-02-25 | 2010-08-25 | 清华大学 | Preparation method of nitrogen-doped titanium dioxide nano line electrode |
| CN102826600A (en) * | 2012-09-20 | 2012-12-19 | 电子科技大学 | Method for preparing titanium dioxide nanowire |
| CN104001504A (en) * | 2014-05-13 | 2014-08-27 | 河海大学 | Preparation method for silver and graphene co-modified TiO2 nanowire and application of silver and graphene co-modified TiO2 nanowire in photocatalytic degradation of pollutants in waste water |
Non-Patent Citations (3)
| Title |
|---|
| JIN WANG, ET AL: "Origin of Photocatalytic Activity of Nitrogen-Doped TiO2 Nanobelts", 《J. AM. CHEM. SOC.》 * |
| MING-CHUNG WU, ET AL: "Nitrogen-Doped Anatase Nanofibers Decorated with Noble Metal Nanoparticles for Photocatalytic Production of Hydrogen", 《ACSNANO》 * |
| SIRIPHAN CHAINARONG, ET AL: "Synthesis and Characterization of Nitrogen-doped TiO2", 《ENERGY PROCEDIA》 * |
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