CN107416889A - A kind of preparation method of Co doping ZnO quantum dot - Google Patents
A kind of preparation method of Co doping ZnO quantum dot Download PDFInfo
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- CN107416889A CN107416889A CN201710340913.1A CN201710340913A CN107416889A CN 107416889 A CN107416889 A CN 107416889A CN 201710340913 A CN201710340913 A CN 201710340913A CN 107416889 A CN107416889 A CN 107416889A
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- acetic acid
- preparation
- quantum dot
- ethanol solution
- potassium hydroxide
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G9/00—Compounds of zinc
- C01G9/02—Oxides; Hydroxides
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- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/60—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing iron, cobalt or nickel
- C09K11/602—Chalcogenides
- C09K11/605—Chalcogenides with zinc or cadmium
Abstract
The invention provides a kind of preparation method of Co doping ZnO quantum dots.The present invention is by the way that cost is relatively low, prepared by environment-friendly, the simple sol-gal process of technique, reacted with zinc acetate, potassium hydroxide, cobalt acetate and polyvinylpyrrolidone to prepare Co-doped ZnO quantum dot, because the radius of Co ions is slightly less than Zn ionic radius, the incorporation of Co ions can change ZnO lattice structures and show the change of diffraction maximum peak position, and experiment shows that this method can successfully prepare the ZnO of well-crystallized:Co quanta point materials.
Description
Technical field
The present invention relates to a kind of preparation method of Co doping ZnO quantum dots.
Background technology
Nano-ZnO due to surface and interfacial effect, quantum size effect and macro quanta tunnel effect etc., thus it
, can be by mixing ZnO semi-conducting materials in the research that nano-ZnO prepares doping with many unique and superior performance
It is miscellaneous to regulate and control the performances such as its optics, electricity and magnetics.
Current nano-ZnO technology of preparing mainly has physical method to include ion evaporation method, electron beam evaporation, sputtering method and swash
Flux of light method etc., chemical method mainly include gas-phase reaction method, template and hydro-thermal method etc..The ZnO nano that distinct methods are prepared
Material such as granular size shape and the characteristics of luminescence have very big difference.But the most cost of existing nano-ZnO quantum dots is high at present, work
Skill is complicated, and preparation process generally requires the instrument and equipment of costliness, and experimental condition requires higher.
The content of the invention
The purpose of the present invention is by the way that cost is relatively low, environment-friendly, the simple sol-gal process of technique prepares ZnO quantum
Point.
In order to achieve the above object, the technical scheme is that providing a kind of preparation side of Co doping ZnO quantum dot
Method, it is characterised in that comprise the following steps：
Step 1, zinc acetate is dissolved in ethanol solution it is made into acetic acid zinc solution, cobalt acetate is dissolved in ethanol solution
Acetic acid cobalt liquor is made into, is added in acetic acid zinc solution molten with the polyvinylpyrrolidone and cobalt acetate of zinc acetate equal quality
It is sufficiently stirred after liquid, forms mixed liquor；
Step 2, potassium hydroxide is dissolved in ethanol solution it is made into potassium hydroxide ethanol solution；
Step 3, the mixed liquor obtained to step 1 carry out magnetic force thermal agitation, in whipping process, by the anhydrous second of potassium hydroxide
Alcoholic solution is added dropwise in mixed liquor, and stirring is until visible white flocky precipitate；
Step 4, with deionized water white flock precipitate thing is rinsed repeatedly to remove the superfluous foreign ion of reaction, in room
The lower drying of temperature.
Preferably, the molar concentration of the acetic acid zinc solution is 0.08~0.1mol/l, mole of the acetic acid cobalt liquor
Concentration is 0.008~0.01mol/l, and the mol ratio of the acetic acid zinc solution and the acetic acid cobalt liquor is 8: 1~10: 1.
Preferably, the molar concentration of the potassium hydroxide ethanol solution is 0.3~0.5mol/l.
Preferably, in the step 2, the potassium hydroxide ethanol solution is loaded on base buret, and it is fixed
On iron stand.
Preferably, in the step 3, the temperature of magnetic force thermal agitation is 50 DEG C~70 DEG C.
The present invention is by the way that cost is relatively low, prepared by environment-friendly, the simple sol-gal process of technique, with zinc acetate, hydrogen
Potassium oxide, cobalt acetate and polyvinylpyrrolidone are reacted to prepare Co-doped ZnO quantum dot, because the radius of Co ions omits
Less than Zn ionic radius, the incorporation of Co ions can change ZnO lattice structures and show the change of diffraction maximum peak position, and experiment shows
This method can successfully prepare ZnO: the Co quanta point material of well-crystallized.
The present invention with cost is relatively low, environment-friendly, the simple sol-gal process of technique by zinc acetate, potassium hydroxide,
Cobalt acetate is reacted with polyvinylpyrrolidone to prepare ZnO: Co quanta point material, and the research of such dilute magnetic semiconductor will be highly dense
Degree nonvolatile memory, semiconductor laser and quantum computer etc. have great application prospect.
Embodiment
To become apparent the present invention, hereby it is described in detail below with preferred embodiment.
A kind of preparation method of Co doping ZnO quantum dot provided by the invention is by zinc acetate, potassium hydroxide, cobalt acetate
Sol-gal process is selected to prepare sample with polyvinylpyrrolidone reaction, this method cost is relatively low, environment-friendly, technique is simple
It is single, it is the dilute magnetic semiconductor of magnetic impurity before spin-electronic material and device will have huge application using transition metal Co
Scape.
The present invention specifically includes following steps：
Step 1, zinc acetate is dissolved in the acetic acid zinc solution that ethanol solution is made into 0.1mol/L, cobalt acetate is dissolved in nothing
Hydrous ethanol solution is made into 0.01mol/L acetic acid cobalt liquor, and the poly- second with zinc acetate equal quality is added in acetic acid zinc solution
It is sufficiently stirred after alkene pyrrolidone and acetic acid cobalt liquor, forms mixed liquor, wherein, acetic acid cobalt liquor and acetic acid zinc solution rub
You are than being 1: 10.
Step 2, potassium hydroxide is dissolved in the potassium hydroxide ethanol solution that ethanol solution is made into 0.5mol/L, hydrogen
Potassium oxide ethanol solution is fixed on iron stand loaded on base buret.
Step 3, the mixed liquor obtained to step 1 carry out magnetic force thermal agitation, under the conditions of 60 DEG C of magnetic force thermal agitations, by hydrogen-oxygen
Change potassium ethanol solution to be added dropwise in mixed liquor, stir 30min visible white flocky precipitates；
Step 4, with deionized water white flock precipitate thing is rinsed repeatedly to remove the superfluous foreign ion of reaction, in room
The lower drying of temperature.
Claims (5)
1. a kind of preparation method of Co doping ZnO quantum dot, it is characterised in that comprise the following steps：
Step 1, zinc acetate is dissolved in ethanol solution it is made into acetic acid zinc solution, cobalt acetate is dissolved in into ethanol solution is made into
Acetic acid cobalt liquor, after adding polyvinylpyrrolidone and acetic acid cobalt liquor with zinc acetate equal quality in acetic acid zinc solution
It is sufficiently stirred, forms mixed liquor；
Step 2, potassium hydroxide is dissolved in ethanol solution it is made into potassium hydroxide ethanol solution；
Step 3, the mixed liquor obtained to step 1 carry out magnetic force thermal agitation, in whipping process, potassium hydroxide absolute ethyl alcohol is molten
Liquid is added dropwise in mixed liquor, and stirring is until visible white flocky precipitate；
Step 4, with deionized water white flock precipitate thing is rinsed repeatedly to remove the superfluous foreign ion of reaction, at room temperature
Dry.
2. the preparation method of a kind of Co doping ZnO quantum dot as claimed in claim 1, it is characterised in that the zinc acetate is molten
The molar concentration of liquid is 0.08~0.1mol/l, and the molar concentration of the acetic acid cobalt liquor is 0.008~0.01mol/l, described
The mol ratio of acetic acid zinc solution and the acetic acid cobalt liquor is 8: 1~10: 1.
A kind of 3. preparation method of Co doping ZnO quantum dot as claimed in claim 1, it is characterised in that the potassium hydroxide
The molar concentration of ethanol solution is 0.03~0.05.
4. the preparation method of a kind of Co doping ZnO quantum dot as claimed in claim 1, it is characterised in that in the step 2
In, the potassium hydroxide ethanol solution is loaded on base buret, and be fixed on iron stand.
5. the preparation method of a kind of Co doping ZnO quantum dot as claimed in claim 1, it is characterised in that in the step 3
In, the temperature of magnetic force thermal agitation is 50 DEG C~70 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710340913.1A CN107416889A (en) | 2017-05-15 | 2017-05-15 | A kind of preparation method of Co doping ZnO quantum dot |
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| CN201710340913.1A CN107416889A (en) | 2017-05-15 | 2017-05-15 | A kind of preparation method of Co doping ZnO quantum dot |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292812A (en) * | 2018-12-04 | 2019-02-01 | 淮阴工学院 | The preparation method of the monodispersity ZnO quantum dot hydrosol |
| CN110352982A (en) * | 2019-07-16 | 2019-10-22 | 陕西科技大学 | A kind of quaternary alkylphosphonium salt modified montmorillonoid load Co-doped ZnO quantum dot nano complex antimicrobials and preparation method thereof |
| CN110521733A (en) * | 2019-09-18 | 2019-12-03 | 陕西科技大学 | A kind of Co doping ZnO quantum dot/palygorskite nano complex antimicrobials and preparation method thereof |
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| CN1660485A (en) * | 2004-12-22 | 2005-08-31 | 华南理工大学 | Photocatalyst of zinc oxide possessing visible light activity and preparation method |
| CN105314672A (en) * | 2015-10-15 | 2016-02-10 | 西安工业大学 | Method for preparing cobalt-doped zinc oxide nanorods through sol-gel |
| CN106186046A (en) * | 2016-08-04 | 2016-12-07 | 苏州德捷膜材料科技有限公司 | A kind of preparation method of low cost one-dimension zinc oxide nano-powder |
| CN106564929A (en) * | 2016-10-21 | 2017-04-19 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method for Ag doped ZnO nanometer gas sensitive material |
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2017
- 2017-05-15 CN CN201710340913.1A patent/CN107416889A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1660485A (en) * | 2004-12-22 | 2005-08-31 | 华南理工大学 | Photocatalyst of zinc oxide possessing visible light activity and preparation method |
| CN105314672A (en) * | 2015-10-15 | 2016-02-10 | 西安工业大学 | Method for preparing cobalt-doped zinc oxide nanorods through sol-gel |
| CN106186046A (en) * | 2016-08-04 | 2016-12-07 | 苏州德捷膜材料科技有限公司 | A kind of preparation method of low cost one-dimension zinc oxide nano-powder |
| CN106564929A (en) * | 2016-10-21 | 2017-04-19 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method for Ag doped ZnO nanometer gas sensitive material |
Non-Patent Citations (3)
| Title |
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| ALI RAHMATI ET AL.: "Cu-doped ZnO nanoparticles synthesized by simple co-precipitation route", 《EUR. PHYS. J. PLUS》 * |
| CEPHAS E. SMALL ET AL.: "High-efficiency inverted dithienogermole–thienopyrrolodione-based polymer solar cells", 《NATURE PHOTONICS》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292812A (en) * | 2018-12-04 | 2019-02-01 | 淮阴工学院 | The preparation method of the monodispersity ZnO quantum dot hydrosol |
| CN110352982A (en) * | 2019-07-16 | 2019-10-22 | 陕西科技大学 | A kind of quaternary alkylphosphonium salt modified montmorillonoid load Co-doped ZnO quantum dot nano complex antimicrobials and preparation method thereof |
| CN110521733A (en) * | 2019-09-18 | 2019-12-03 | 陕西科技大学 | A kind of Co doping ZnO quantum dot/palygorskite nano complex antimicrobials and preparation method thereof |
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Application publication date: 20171201 |