CN107978458A - ZnO nanorod/TiO2The preparation method of nanoparticle composite film - Google Patents
ZnO nanorod/TiO2The preparation method of nanoparticle composite film Download PDFInfo
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- CN107978458A CN107978458A CN201610919961.1A CN201610919961A CN107978458A CN 107978458 A CN107978458 A CN 107978458A CN 201610919961 A CN201610919961 A CN 201610919961A CN 107978458 A CN107978458 A CN 107978458A
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- tio
- zno nanorod
- composite film
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- nanoparticle composite
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- 239000002105 nanoparticle Substances 0.000 title claims abstract description 30
- 239000002073 nanorod Substances 0.000 title claims abstract description 21
- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 30
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 239000011259 mixed solution Substances 0.000 claims abstract description 7
- 229910003074 TiCl4 Inorganic materials 0.000 claims abstract description 6
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 5
- 238000005119 centrifugation Methods 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 5
- 238000002604 ultrasonography Methods 0.000 claims abstract description 5
- 238000001354 calcination Methods 0.000 claims description 4
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000243 solution Substances 0.000 description 7
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- -1 Hydroxyl radical free radical Chemical class 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 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
- 230000005540 biological transmission 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
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 239000002070 nanowire 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2027—Light-sensitive devices comprising an oxide semiconductor electrode
- H01G9/2031—Light-sensitive devices comprising an oxide semiconductor electrode comprising titanium oxide, e.g. TiO2
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2027—Light-sensitive devices comprising an oxide semiconductor electrode
- H01G9/204—Light-sensitive devices comprising an oxide semiconductor electrode comprising zinc oxides, e.g. ZnO
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/542—Dye sensitized solar cells
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Nanotechnology (AREA)
- Physics & Mathematics (AREA)
- Composite Materials (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Hybrid Cells (AREA)
Abstract
The invention discloses a kind of ZnO nanorod/TiO2The preparation method of nanoparticle composite film, including：S1, by ammonia spirit add TiCl4With in the mixed solution of ethanol, and being stirred under magnetic fields, presoma is obtained；S2, by presoma by centrifugation after, cleaned using ultrasound, and dried；S3, calcine 1~5h under the conditions of 200~300 DEG C, obtains TiO2Nano particle；S4, reacted by low-temperature hydrothermal, in TiO2Growing ZnO nanorod in the hole of nanometer particle film, obtains ZnO nanorod/TiO2Nanoparticle composite film.ZnO nanorod/TiO of the present invention2Nanoparticle composite film can be widely applied to the technical fields such as dye-sensitized solar cells, can significantly improve photoelectric conversion efficiency.
Description
Technical field
The present invention relates to semiconductor light-catalyst technical field, more particularly to a kind of ZnO nanorod/TiO2Nano particle
The preparation method of laminated film.
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.
By TiO2Laminated film prepared by nano particle can be widely applied to the technical fields such as dye-sensitized solar cells,
But its photoelectric conversion efficiency is generally relatively low.
Therefore, in view of the above-mentioned problems, being necessary to propose a kind of ZnO nanorod //TiO2The preparation of nanoparticle composite film
Method.
The content of the invention
In view of this, the present invention provides a kind of ZnO nanorod/TiO2The preparation method of nanoparticle composite film.
In order to realize foregoing invention purpose, the present invention provides a kind of ZnO nanorod/TiO2The system of nanoparticle composite film
Preparation Method, the preparation method include：
S1, by ammonia spirit add TiCl4With in the mixed solution of ethanol, and being stirred under magnetic fields, forerunner is obtained
Body；
S2, by presoma by centrifugation after, cleaned using ultrasound, and dried；
S3, calcine 1~5h under the conditions of 200~300 DEG C, obtains TiO2Nano particle；
S4, reacted by low-temperature hydrothermal, in TiO2Growing ZnO nanorod in the hole of nanometer particle film, obtains ZnO and receives
Rice rod/TiO2Nanoparticle composite film.
As a further improvement on the present invention, TiCl in the mixed solution of the step S14With ethanol mole the ratio between be
1：50~1:100.
As a further improvement on the present invention, calcining heat is 250 DEG C in the step S2, calcination time 4h.
As a further improvement on the present invention, the solution that low-temperature hydrothermal reaction uses in the step S3 is Zn (NO3)2Water
Solution, reaction temperature are 70~90 DEG C, and the reaction time is 15~25h.
Compared with prior art, the beneficial effects of the invention are as follows：
ZnO nanorod/TiO of the present invention2Nanoparticle composite film, can both retain TiO2Nano particle specific surface area
The advantages of big and electron injection efficiency is high, and TiO can be made up2Nanoparticle three-dimensional net structure electrons spread transmission rate is slow
The shortcomings that, the technical fields such as dye-sensitized solar cells are can be widely applied to, photoelectric conversion efficiency can be significantly improved.
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 ZnO nanorod/TiO in the present invention2The flow diagram of the preparation method of nanoparticle composite film.
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 ZnO nanorod/TiO in the present invention2The preparation method of nanoparticle composite film, including：
S1, by ammonia spirit add TiCl4With in the mixed solution of ethanol, and being stirred under magnetic fields, forerunner is obtained
Body；
S2, by presoma by centrifugation after, cleaned using ultrasound, and dried；
S3, calcine 1~5h under the conditions of 200~300 DEG C, obtains TiO2Nano particle；
S4, reacted by low-temperature hydrothermal, in TiO2Growing ZnO nanorod in the hole of nanometer particle film, obtains ZnO and receives
Rice rod/TiO2Nanoparticle composite film.
Specifically, in a preferred embodiment, a kind of ZnO nanorod/TiO2The system of nanoparticle composite film
Preparation Method, including：
S1, by ammonia spirit add TiCl4With in the mixed solution of ethanol, wherein, TiCl4With ethanol mole the ratio between be
1：50~1:100, and stirred under magnetic fields, obtain presoma；
S2, by presoma by centrifugation after, cleaned using ultrasound, and dried；
S3, calcine 4h under the conditions of 250 DEG C, obtains TiO2Nano particle；
S4, reacted by low-temperature hydrothermal, and the solution that low-temperature hydrothermal reaction uses is Zn (NO3)2Aqueous solution, reaction temperature are
70~90 DEG C, the reaction time is 15~25h, in TiO2Growing ZnO nanorod in the hole of nanometer particle film, obtains ZnO and receives
Rice rod/TiO2Nanoparticle composite film.
As can be seen from the above technical solutions, ZnO nanorod/TiO of the invention2Nanoparticle composite film, both can be with
Retain TiO2The advantages of nano particle specific surface area is greatly and electron injection efficiency is high, and TiO can be made up2Nanoparticle three-dimensional net
The shortcomings that shape structure electrical diffusion transport speed is slow, can be widely applied to the technical fields such as dye-sensitized solar cells, can
Significantly improve photoelectric conversion efficiency.
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)
- A kind of 1. ZnO nanorod/TiO2The preparation method of nanoparticle composite film, it is characterised in that the preparation method bag Include：S1, by ammonia spirit add TiCl4With in the mixed solution of ethanol, and being stirred under magnetic fields, presoma is obtained；S2, by presoma by centrifugation after, cleaned using ultrasound, and dried；S3, calcine 1~5h under the conditions of 200~300 DEG C, obtains TiO2Nano particle；S4, reacted by low-temperature hydrothermal, in TiO2Growing ZnO nanorod in the hole of nanometer particle film, acquisition ZnO nanorod/ TiO2Nanoparticle composite film.
- 2. preparation method according to claim 1, it is characterised in that TiCl in the mixed solution of the step S14With ethanol Mole the ratio between be 1：50~1:100.
- 3. preparation method according to claim 1, it is characterised in that calcining heat is 250 DEG C in the step S2, calcining Time is 4h.
- 4. preparation method according to claim 1, it is characterised in that low-temperature hydrothermal reaction uses molten in the step S3 Liquid is Zn (NO3)2Aqueous solution, reaction temperature are 70~90 DEG C, and the reaction time is 15~25h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610919961.1A CN107978458A (en) | 2016-10-21 | 2016-10-21 | ZnO nanorod/TiO2The preparation method of nanoparticle composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610919961.1A CN107978458A (en) | 2016-10-21 | 2016-10-21 | ZnO nanorod/TiO2The preparation method of nanoparticle composite film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107978458A true CN107978458A (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610919961.1A Pending CN107978458A (en) | 2016-10-21 | 2016-10-21 | ZnO nanorod/TiO2The preparation method of nanoparticle composite film |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966450A (en) * | 2010-07-29 | 2011-02-09 | 中国计量学院 | High-efficiency composite photocatalyst and preparation method thereof |
| CN102254704A (en) * | 2011-05-06 | 2011-11-23 | 海南科技职业学院 | Dye sensitized noble metal deposited titanium dioxide light anode and preparation method thereof |
| CN102658112A (en) * | 2012-04-14 | 2012-09-12 | 黑龙江省金昇新能源与环境材料研究院 | Preparation method of ZnO-TiO2 composite photocatalyst |
| CN103456511A (en) * | 2012-06-04 | 2013-12-18 | 中国石油大学(华东) | Post-embedding method for preparing ZnO nanorod/TiO2 nano-particle composite film |
| CN104952963A (en) * | 2015-04-14 | 2015-09-30 | 上海大学 | Method for preparing TiO2-ZnO hetero-junction nanorod for perovskite solar cell |
-
2016
- 2016-10-21 CN CN201610919961.1A patent/CN107978458A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966450A (en) * | 2010-07-29 | 2011-02-09 | 中国计量学院 | High-efficiency composite photocatalyst and preparation method thereof |
| CN102254704A (en) * | 2011-05-06 | 2011-11-23 | 海南科技职业学院 | Dye sensitized noble metal deposited titanium dioxide light anode and preparation method thereof |
| CN102658112A (en) * | 2012-04-14 | 2012-09-12 | 黑龙江省金昇新能源与环境材料研究院 | Preparation method of ZnO-TiO2 composite photocatalyst |
| CN103456511A (en) * | 2012-06-04 | 2013-12-18 | 中国石油大学(华东) | Post-embedding method for preparing ZnO nanorod/TiO2 nano-particle composite film |
| CN104952963A (en) * | 2015-04-14 | 2015-09-30 | 上海大学 | Method for preparing TiO2-ZnO hetero-junction nanorod for perovskite solar cell |
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Application publication date: 20180501 |