CN107970926A - The Detitanium-ore-type TiO of gold nanoparticle load2Nano wire - Google Patents
The Detitanium-ore-type TiO of gold nanoparticle load2Nano wire Download PDFInfo
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- CN107970926A CN107970926A CN201610916594.XA CN201610916594A CN107970926A CN 107970926 A CN107970926 A CN 107970926A CN 201610916594 A CN201610916594 A CN 201610916594A CN 107970926 A CN107970926 A CN 107970926A
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- Prior art keywords
- tio
- solution
- nano wire
- nano
- haucl
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000010931 gold Substances 0.000 title claims abstract description 36
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 36
- 239000002105 nanoparticle Substances 0.000 title claims abstract description 35
- 239000002070 nanowire Substances 0.000 claims abstract description 47
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 36
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 19
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 15
- 229910004042 HAuCl4 Inorganic materials 0.000 claims abstract description 12
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000000725 suspension Substances 0.000 claims abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000007146 photocatalysis Methods 0.000 abstract description 6
- 230000001699 photocatalysis Effects 0.000 abstract description 6
- 239000003054 catalyst Substances 0.000 description 3
- -1 Hydroxyl radical free radical Chemical class 0.000 description 2
- 238000001069 Raman spectroscopy Methods 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
- 230000000694 effects Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000003756 stirring Methods 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
- 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
- B01J23/52—Gold
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- B01J35/33—
-
- B01J35/39—
Abstract
The invention discloses a kind of Detitanium-ore-type TiO of gold nanoparticle load2Nano wire, including：S1, by TiO2Nano-particle is mixed with NaOH solution, is stirred to form suspension, and is injected in reaction kettle, the thermal response under the conditions of 100~200 DEG C, and the titanate nanowire with layer structure is made；S2, mix titanate nanowire with water, and injects in reaction kettle, and 10~3h of thermal response under the conditions of 150~200 DEG C, obtains Detitanium-ore-type TiO2Nano wire；S3, by TiO2Nano wire is soaked in HAuCl4In solution, and ultraviolet irradiation is in TiO2Gold nano seed is formed in nano wire；S4, the TiO that gold nano seed will be accompanied with2Nano wire is soaked in HAuCl again4In solution, and 15~30min of ultraviolet irradiation is so that gold nanoparticle is grown；S5, will grow and have the TiO of gold nanoparticle2Nano wire is soaked in HAuCl4In solution, hydroxylamine hydrochloride solution is then added dropwise into the solution to amplify gold nanoparticle.The present invention can be in Detitanium-ore-type TiO2High-intensity magnetic field is produced in three dimensions in nanometer spool, improves TiO2The photocatalysis performance of nano wire.
Description
Technical field
The present invention relates to semiconductor light-catalyst technical field, more particularly to a kind of anatase of gold nanoparticle load
Type TiO2Nano wire.
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.
Therefore, in view of the above-mentioned problems, being necessary to propose a kind of Detitanium-ore-type TiO of gold nanoparticle load2Nano wire.
The content of the invention
In view of this, the present invention provides a kind of Detitanium-ore-type TiO of gold nanoparticle load2Nano wire.
In order to realize foregoing invention purpose, the present invention provides a kind of Detitanium-ore-type TiO of gold nanoparticle load2Nanometer
Line, the preparation method include：
S1, by TiO2Nano-particle is mixed with the NaOH solution of 1-10M, is stirred to form suspension, and inject reaction kettle
In, 10~50h of thermal response under the conditions of 100~200 DEG C, is made the titanate nanowire with layer structure；
S2, mix titanate nanowire with water, and injects in reaction kettle, under the conditions of 150~200 DEG C thermal response 10~
3h, obtains Detitanium-ore-type TiO2Nano wire；
S3, by TiO2Nano wire is soaked in HAuCl4In solution, then with deionized water rinsing, nitrogen drying, and ultraviolet photograph
1~15min is penetrated with TiO2Gold nano seed is formed in nano wire；
S4, the TiO that gold nano seed will be accompanied with2Nano wire is soaked in HAuCl again4In solution, and ultraviolet irradiation 15~
30min is so that gold nanoparticle is grown；
S5, will grow and have the TiO of gold nanoparticle2Nano wire is soaked in HAuCl4In solution, then into the solution dropwise
Hydroxylamine hydrochloride solution is added to amplify gold nanoparticle.
As a further improvement on the present invention, time of ultraviolet irradiation is 10min in the step S3, ultraviolet photograph in step S4
It is 20min to penetrate the time.
As a further improvement on the present invention, HAuCl in the step S3 and step S44The temperature of solution is 50~80
℃。
As a further improvement on the present invention, further included in described step S3, S4, S5：
Adjust HAuCl4PH value of solution is 2~3.
As a further improvement on the present invention, further included before the step S1：
By TiO2Nano-particle soaks 5~10min in KOH solution.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention can be in Detitanium-ore-type TiO2High-intensity magnetic field is produced in three dimensions in nanometer spool, can be strengthened
The Raman signal of target molecule, improves TiO2The photocatalysis performance of nano wire.
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 Detitanium-ore-type TiO that gold nanoparticle loads in the present invention2The flow signal of the preparation method of nano wire
Figure.
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 Detitanium-ore-type TiO of gold nanoparticle load in the present invention2Nano wire, it includes：
S1, by TiO2Nano-particle is mixed with the NaOH solution of 1-10M, is stirred to form suspension, and inject reaction kettle
In, 10~50h of thermal response under the conditions of 100~200 DEG C, is made the titanate nanowire with layer structure；
S2, mix titanate nanowire with water, and injects in reaction kettle, under the conditions of 150~200 DEG C thermal response 10~
3h, obtains Detitanium-ore-type TiO2Nano wire；
S3, by TiO2Nano wire is soaked in HAuCl4In solution, then with deionized water rinsing, nitrogen drying, and ultraviolet photograph
1~15min is penetrated with TiO2Gold nano seed is formed in nano wire；
S4, the TiO that gold nano seed will be accompanied with2Nano wire is soaked in HAuCl again4In solution, and ultraviolet irradiation 15~
30min is so that gold nanoparticle is grown；
S5, will grow and have the TiO of gold nanoparticle2Nano wire is soaked in HAuCl4In solution, then into the solution dropwise
Hydroxylamine hydrochloride solution is added to amplify gold nanoparticle.
Specifically, a kind of Detitanium-ore-type TiO of gold nanoparticle load in a preferred embodiment of the invention2Nano wire,
It includes：
S1, by TiO2Nano-particle soaks 5~10min in KOH solution, then by TiO2Nano-particle and 1-10M's
NaOH solution mixes, and stirs to form suspension, and injects in reaction kettle, 10~50h of thermal response under the conditions of 100~200 DEG C,
The titanate nanowire with layer structure is made；
S2, mix titanate nanowire with water, and injects in reaction kettle, under the conditions of 150~200 DEG C thermal response 10~
3h, obtains Detitanium-ore-type TiO2Nano wire；
S3, by TiO2Nano wire is soaked in the HAuCl that temperature is 50~80 DEG C4In solution, HAuCl is adjusted4PH value of solution is 2
~3, then with deionized water rinsing, nitrogen dries up, and ultraviolet irradiation 10min is with TiO2Gold nano kind is formed in nano wire
Son；
S4, the TiO that gold nano seed will be accompanied with2Nano wire is soaked in the HAuCl that temperature is 50~80 DEG C again4Solution
In, adjust HAuCl4PH value of solution is 2~3, and ultraviolet irradiation 20min is so that gold nanoparticle is grown；
S5, will grow and have the TiO of gold nanoparticle2Nano wire is soaked in HAuCl4In solution, HAuCl is adjusted4PH value of solution is
2~3, hydroxylamine hydrochloride solution is then added dropwise into the solution to amplify gold nanoparticle.
As can be seen from the above technical solutions, the present invention can be in Detitanium-ore-type TiO2In three dimensions in nanometer spool
High-intensity magnetic field is produced, the Raman signal of target molecule can be strengthened, improve TiO2The photocatalysis performance of nano wire.
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. Detitanium-ore-type TiO of gold nanoparticle load2Nano wire, it is characterised in that the preparation method includes：S1, by TiO2Nano-particle is mixed with the NaOH solution of 1-10M, is stirred to form suspension, and is injected in reaction kettle, 10~50h of thermal response under the conditions of 100~200 DEG C, is made the titanate nanowire with layer structure；S2, mix titanate nanowire with water, and injects in reaction kettle, 10~3h of thermal response under the conditions of 150~200 DEG C, Obtain Detitanium-ore-type TiO2Nano wire；S3, by TiO2Nano wire is soaked in HAuCl4In solution, then with deionized water rinsing, nitrogen drying, and ultraviolet irradiation 1 ~15min is with TiO2Gold nano seed is formed in nano wire；S4, the TiO that gold nano seed will be accompanied with2Nano wire is soaked in HAuCl again4In solution, and ultraviolet irradiation 15~ 30min is so that gold nanoparticle is grown；S5, will grow and have the TiO of gold nanoparticle2Nano wire is soaked in HAuCl4In solution, then it is added dropwise into the solution Hydroxylamine hydrochloride solution is to amplify gold nanoparticle.
- 2. preparation method according to claim 1, it is characterised in that time of ultraviolet irradiation is 10min in the step S3, Time of ultraviolet irradiation is 20min in step S4.
- 3. preparation method according to claim 1, it is characterised in that HAuCl in the step S3 and step S44Solution Temperature is 50~80 DEG C.
- 4. preparation method according to claim 1, it is characterised in that further included in described step S3, S4, S5：Adjust HAuCl4PH value of solution is 2~3.
- 5. preparation method according to claim 1, it is characterised in that further included before the step S1：By TiO2Nano-particle soaks 5~10min in KOH solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610916594.XA CN107970926A (en) | 2016-10-21 | 2016-10-21 | The Detitanium-ore-type TiO of gold nanoparticle load2Nano wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610916594.XA CN107970926A (en) | 2016-10-21 | 2016-10-21 | The Detitanium-ore-type TiO of gold nanoparticle load2Nano wire |
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| Publication Number | Publication Date |
|---|---|
| CN107970926A true CN107970926A (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610916594.XA Pending CN107970926A (en) | 2016-10-21 | 2016-10-21 | The Detitanium-ore-type TiO of gold nanoparticle load2Nano wire |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621948A (en) * | 2019-01-23 | 2019-04-16 | 深圳市至霸化工有限公司 | One kind having weak light-catalysed nano-titanium dioxide and preparation method thereof |
| CN109926016A (en) * | 2019-04-04 | 2019-06-25 | 广州大学 | A kind of adsorbent material, preparation method and its application |
| CN115198285A (en) * | 2022-07-14 | 2022-10-18 | 西安泰金工业电化学技术有限公司 | Preparation method of noble metal powder catalyst for hydrogen production by water electrolysis |
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| WO2004112958A1 (en) * | 2003-06-19 | 2004-12-29 | Carrier Corporation | Air purification system comprising gold/titanium dioxide photocatalyst |
| CN101898790A (en) * | 2009-05-25 | 2010-12-01 | 嵇天浩 | Large-scale manufacturing of anatase type titanium dioxide nanowires/nanobelts |
| CN102120184A (en) * | 2011-01-25 | 2011-07-13 | 中国科学院山西煤炭化学研究所 | Noble metal-carrying titanium dioxide catalyst and preparation method and use thereof |
| CN104076075A (en) * | 2014-06-25 | 2014-10-01 | 复旦大学 | Gold nano particle-titanium dioxide nano wire array composite material as well as preparation method and application thereof |
| CN104722773A (en) * | 2015-02-12 | 2015-06-24 | 苏州大学 | Preparation method of thorn-shaped gold nanoparticles and thrust-shaped gold nanoparticles prepared through method |
-
2016
- 2016-10-21 CN CN201610916594.XA patent/CN107970926A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004112958A1 (en) * | 2003-06-19 | 2004-12-29 | Carrier Corporation | Air purification system comprising gold/titanium dioxide photocatalyst |
| CN101898790A (en) * | 2009-05-25 | 2010-12-01 | 嵇天浩 | Large-scale manufacturing of anatase type titanium dioxide nanowires/nanobelts |
| CN102120184A (en) * | 2011-01-25 | 2011-07-13 | 中国科学院山西煤炭化学研究所 | Noble metal-carrying titanium dioxide catalyst and preparation method and use thereof |
| CN104076075A (en) * | 2014-06-25 | 2014-10-01 | 复旦大学 | Gold nano particle-titanium dioxide nano wire array composite material as well as preparation method and application thereof |
| CN104722773A (en) * | 2015-02-12 | 2015-06-24 | 苏州大学 | Preparation method of thorn-shaped gold nanoparticles and thrust-shaped gold nanoparticles prepared through method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621948A (en) * | 2019-01-23 | 2019-04-16 | 深圳市至霸化工有限公司 | One kind having weak light-catalysed nano-titanium dioxide and preparation method thereof |
| CN109926016A (en) * | 2019-04-04 | 2019-06-25 | 广州大学 | A kind of adsorbent material, preparation method and its application |
| CN115198285A (en) * | 2022-07-14 | 2022-10-18 | 西安泰金工业电化学技术有限公司 | Preparation method of noble metal powder catalyst for hydrogen production by water electrolysis |
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