CN100595132C - Method for producing nano zinc peroxide and zinc oxide by using solar - Google Patents
Method for producing nano zinc peroxide and zinc oxide by using solar Download PDFInfo
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- CN100595132C CN100595132C CN200610113398A CN200610113398A CN100595132C CN 100595132 C CN100595132 C CN 100595132C CN 200610113398 A CN200610113398 A CN 200610113398A CN 200610113398 A CN200610113398 A CN 200610113398A CN 100595132 C CN100595132 C CN 100595132C
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Abstract
The present invention provides a method preparing zinc peroxide and zinc oxide using solar energy. The zinc acetate and hydrogen peroxide are chosen as raw material. The zinc acetate is dissolved in amixed solution of hydrogen peroxide and deionized water. A white sol is obtained by reaction under sunlight illumination. The white sol is dried and a buff powder which is zinc peroxide powder is obtained. Then the powder is annealed in high temperature and a white zinc oxide powder is obtained. Through controlling pH value of the sol and reaction time, nanometer grain of zinc peroxide and zinc oxide which are provided with grain-controlled, good dispersivity, high purity and high crystallinity are obtained. Preparation method of the present invention is simple in process, easy in operating,mild in reaction condition and can be completed at room temperature, which has the advantages of energy-saving and environmental friendly.
Description
Technical field
The present invention relates to a kind of method of utilizing solar energy chemical reaction mode to prepare nanometer zinc peroxide and zinc oxide.
Background technology
Zinc peroxide is faint yellow or white powder, and is water insoluble.Zinc peroxide can be used to make the foam thermal molding product of dystectic synthetic resins with the combination of azo carbon as the winding-up agent.Zinc peroxide is used to produce anti-oil and anti-aging sealing agent, pipeline etc. as vulcanizing agent in the sulfuration of polysulfide rubber, and the sulfuration that is used for the carbonyl paracril is with the production rubber that resistance to wears.Strengthen the anti-carbon-burning capacity and the storage stability of unhardened rubber as stiffening agent at carboxylic acid nitrile butadiene rubber nitrile rubber zinc peroxide.Zinc peroxide can also be used as the oxygenant and the oxygenate of explosive substance (as explosive, pyrotechnics).In the production process of ceramics insulator, help to quicken the burning of organic binder bond or the residual carbon content in the removal minimizing Low fire ceramic material thereby add zinc peroxide.In the oil and natural gas excavation industry, zinc peroxide is used to prepare the mud that drilling fluid decomposes caking under the well bore, makes exploitation more smooth.In addition, zinc peroxide can be used for making the dermopathic sanitas of treatment.Zinc peroxide also can be used for other field as oxygenant and SYNTHETIC OPTICAL WHITNER and also is widely used.
Zinc oxide is a kind of novel II-VI family direct band gap semiconductor material with wide forbidden band, its energy gap is 3137eV under the room temperature, corresponding to wavelength is the UV-light of 387nm, and the exciton bind energy under the room temperature is big (60meV), therefore at room temperature can produce high efficiency exciton emission.Zinc oxide has all obtained in fields such as optics, air-sensitive, pressure-sensitive device, photochemical catalysis, ultraviolet photoelectron devices widely using, and is another in the world research focus after GaN in recent years, has been subjected to people's common concern.The method for preparing nano-ZnO is a lot, and the ZnO of different methods preparation has different crystalline forms, granular size, surface properties and purity, and these all will have influence on the photoelectric property of nano ZnO material.
Traditional method for preparing zinc oxide and zinc peroxide has a lot.The industrial method for preparing zinc oxide mainly contains: direct method (also claiming U.S.'s method) (will make zinc oxide from the zinc fume oxidation that calcining restores), indirect method (also claiming the method national law) (the evaporated metal spelter makes zinc oxide with the oxidation of gained zinc fume).Present commercially available zinc oxide mostly is direct method or indirect method product, and gained ZnO granularity is a micron order, and specific surface area is less.The industrial method for preparing zinc peroxide is zinc hydroxide method (by zinc peroxide and superoxol reaction).These methods exist energy consumption height, lower, the more high shortcoming of cost of purity.The present invention adopts zinc acetate and hydrogen peroxide as starting material, and cost is lower, utilizes sun power to impel reaction to take place, and the reaction conditions gentleness can be saved the energy.The present invention has simple, with low cost, the eco-friendly characteristic of technology.And a technological process can generate zinc oxide and two kinds of materials of zinc peroxide simultaneously.By control colloidal sol pH value, reaction times etc., can obtain that crystal grain is controlled, the nanometer zinc peroxide and the Zinc oxide particles of good dispersity.The resulting zinc peroxide of the present invention can be widely used in makes makeup, medicine, vulcanization accelerator, sanitas, astringent matter etc.; The zinc oxide that obtains can be widely used as photocell, pressure-active element, transmitter, catalyzer and ultraviolet photoelectron device etc.
Summary of the invention
The purpose of this invention is to provide a kind of solar energy chemical reaction method for preparing zinc peroxide and zinc oxide simultaneously.
Technical scheme of the present invention is: described preparation method is a raw material with hydrogen peroxide and zinc acetate, earlier hydrogen peroxide is joined in the deionized water, stirs.Under the condition of sunlight illumination, zinc acetate is dissolved in above-mentioned solution, obtain the solution of concentration between 0.1mol/L-0.5mol/L, (0 ℃-40 ℃) reaction at room temperature obtains leucosol behind the 8h-20h, and the dry light yellow nanometer powder that obtains different size is the zinc peroxide powder under 120 ℃ the temperature being lower than colloidal sol.If again the The high temperature anneal of powder, just can obtain the Zinc oxide powder of white at 400 ℃-800 ℃.
Wherein, described preparation method can intermittently or under the continuum of states carry out.
Wherein, in described preparation method's process, can add dilute hydrochloric acid, dilute sulphuric acid, rare nitric acid, dilute acetic acid and regulate colloidal sol pH value, the control grain size obtains the nanometer powder of different size.
This preparation method's reaction mechanism is: at first be that hydrogen peroxide issues estranged separating and the zinc acetate reaction in the condition of illumination in solution, generate zinc peroxide.
Zn(CH
3COO)
2+H
2O
2＝ZnO
2+2HCH
3COO
Then, the decomposition reaction of zinc peroxide generation at high temperature generates zinc oxide.
2ZnO
2＝2ZnO+O
2
The advantage of the prepared method of the present invention is: the zinc peroxide of preparation and zinc oxide purity are higher, and the batching cost is low, and the stability of zinc peroxide better; Adopt clean energy sun power as energy derive, Processes and apparatus is simple, cost is low, is fit to large-scale commercial production.
Description of drawings
Fig. 1, be preparation process of the present invention reaction synoptic diagram;
Fig. 2, be the spectrum of the XRD figure after the Gelatin powder different heat treatment of the present invention;
Fig. 3, (a) are the scanning electron microscope image of zinc oxide of the present invention;
(b) for the scanning electron microscope image of zinc peroxide powder of the present invention;
Fig. 4, (a) are the transmission electron microscope image of zinc oxide of the present invention;
B) for the transmission electron microscope image of zinc peroxide powder of the present invention;
Fig. 5, for preparation process reacting flow chart of the present invention.
Embodiment
The present invention is a kind of method of utilizing solar energy chemical reaction mode to prepare nanometer zinc peroxide and zinc oxide.Its preparation method is a raw material with hydrogen peroxide and zinc acetate, earlier hydrogen peroxide is joined in the deionized water, stirs.Under the condition of sunlight illumination, zinc acetate is dissolved in above-mentioned solution, obtain the solution of concentration between 0.1mol/L-0.5mol/L, (0 ℃-40 ℃) reaction at room temperature obtains leucosol behind the 8h-20h, and the dry light yellow nanometer powder that obtains different size is the zinc peroxide powder under 120 ℃ the temperature being lower than colloidal sol.If again the The high temperature anneal of powder, just can obtain the Zinc oxide powder of white at 400 ℃-800 ℃.
Described above-mentioned reaction can intermittently or under the continuum of states carried out.
In described preparation method's process, can add dilute hydrochloric acid, dilute sulphuric acid, rare nitric acid, dilute acetic acid and regulate colloidal sol pH value, the control grain size obtains the nanometer powder of different size.
Reaction mechanism among the preparation method of the present invention is as follows:
At first be that hydrogen peroxide issues estranged separating and the zinc acetate reaction in the condition of illumination in solution, generate zinc peroxide.
Zn(CH
3COO)
2+H
2O
2＝ZnO
2+2HCH
3COO
Then, the decomposition reaction of zinc peroxide generation at high temperature generates zinc oxide.
2ZnO
2＝2ZnO+O
2
The concrete implementation step of preparation method of the present invention is as follows:
1, earlier the 0.5g zinc acetate is dissolved in 150ml H
2O mixes;
2, add H while stirring more than 0.5ml
2O
2
3, mixing the back shines while stirring under sunlight;
4, add more than 0.5ml H behind the 6h again
2O
2
5, stop behind the restir 4h, obtain evenly stable sols;
6, the colloidal sol drying is obtained Gelatin powder;
7, obtain the uniform ZnO of particle diameter after the grinding
2Powder;
8, again ZnO
2Powder obtains ZnO powder 400 ℃ of annealing.
Claims (3)
1, a kind of method of utilizing sun power to prepare nano zine oxide, it is characterized in that: this preparation method is a raw material with hydrogen peroxide and zinc acetate, earlier hydrogen peroxide is joined in the deionized water, stir, under the condition of sunlight illumination, zinc acetate is dissolved in above-mentioned superoxol, obtain the solution of concentration between 0.1mol/L-0.5mol/L, this solution is obtained leucosol 0 ℃-40 ℃ reactions after 8-20 hour, the dry light yellow nanometer powder that obtains different size is the zinc peroxide powder under 120 ℃ the temperature being lower than leucosol, again the zinc peroxide powder is carried out anneal at 400 ℃-800 ℃, obtain the Zinc oxide powder of white.
2, the method for utilizing sun power to prepare nano zine oxide according to claim 1 is characterized in that: described preparation method intermittently or under the continuum of states is carrying out.
3, the method for utilizing sun power to prepare nano zine oxide according to claim 1 is characterized in that: regulate colloidal sol pH value by interpolation dilute hydrochloric acid, dilute sulphuric acid, rare nitric acid, dilute acetic acid, the control grain size.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610113398A CN100595132C (en) | 2006-09-27 | 2006-09-27 | Method for producing nano zinc peroxide and zinc oxide by using solar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610113398A CN100595132C (en) | 2006-09-27 | 2006-09-27 | Method for producing nano zinc peroxide and zinc oxide by using solar |
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| Publication Number | Publication Date |
|---|---|
| CN101152957A CN101152957A (en) | 2008-04-02 |
| CN100595132C true CN100595132C (en) | 2010-03-24 |
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|---|---|---|---|
| CN200610113398A Expired - Fee Related CN100595132C (en) | 2006-09-27 | 2006-09-27 | Method for producing nano zinc peroxide and zinc oxide by using solar |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2467952C1 (en) * | 2011-03-21 | 2012-11-27 | Открытое акционерное общество "Корпорация "Росхимзащита" (ОАО "Корпорация "Росхимзащита") | Method of producing zinc peroxide |
| JP5967087B2 (en) | 2011-06-10 | 2016-08-10 | 堺化学工業株式会社 | Method for producing round zinc oxide particles |
| CZ2011880A3 (en) * | 2011-12-23 | 2013-08-28 | Optaglio, S.R.O. | Process for preparing nanosol - hydrated zinc peroxide - ZnO2, nanosol prepared in such a manner and use of this nanosol sm |
| CN106118099A (en) * | 2016-07-13 | 2016-11-16 | 吴迪 | A kind of preparation method of environment protection modified pitch |
| CN109231257A (en) * | 2018-11-20 | 2019-01-18 | 中国科学院地球环境研究所 | A kind of zinc oxide colloidal sol and preparation method thereof with photocatalysis performance |
| CN112110475B (en) * | 2020-09-24 | 2022-06-21 | 安徽省含山县锦华氧化锌厂 | Production process for preparing zinc oxide by using paste precursor |
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2006
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