CN1727283A - Method for preparing superfine zinc oxide and crystal whisker of zinc oxide - Google Patents
Method for preparing superfine zinc oxide and crystal whisker of zinc oxide Download PDFInfo
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- CN1727283A CN1727283A CNA2005100892086A CN200510089208A CN1727283A CN 1727283 A CN1727283 A CN 1727283A CN A2005100892086 A CNA2005100892086 A CN A2005100892086A CN 200510089208 A CN200510089208 A CN 200510089208A CN 1727283 A CN1727283 A CN 1727283A
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Abstract
A process for preparing superfine zinc oxide particles and the crystal whiskers of zinc oxide includes such steps as preparing zinc hydroxide by uniform precipitation method in which the ionic exchange resin is used as precipitant and template, deposition separation, drying and calcining. Its advantages are no need of washing precursor and low cost.
Description
Technical field
The present invention relates to the preparation method of the oxide compound of zinc, relate in particular to the preparation method of super fine zinc oxide and ZnOw.
Background technology
Zinc oxide is the direct wide bandgap semiconductor materials with wurtzite crystal structure, and multiple good physicals is arranged, and is widely used in rubber, pottery, coating, and field such as photoelectron.Super fine zinc oxide, because size of particles is little, specific surface area is big, has surface effects, quantum size effect and Kubo effect, shows many special nature, as nontoxic and non-migrating, fluorescence, piezoelectricity, absorption and scatters ultraviolet ability etc.Has purposes widely at aspects such as rubber, pottery, daily-use chemical industry, coating, magneticsubstances, ZnOw is then complete because of its crystalline structure, subsurface defect is less, its intensity can cause people's attention near the performances such as theoretical value of perfect crystal material, is the very excellent advanced composite material strengthening and toughening agent of a class mechanical property.
Along with the continuous development of China's industry, the demand of super fine zinc oxide is increased day by day, therefore the research to its synthesis technique has been subjected to increasing attention.
At present, domestic super fine zinc oxide adopts chemical precipitation method preparation more, how with the presoma of zinc salt with precipitation agent prepared in reaction zinc oxide such as ammoniacal liquor, sodium hydroxide, volatile salts, but has the problem of negatively charged ion difficulty in the eccysis original solution also more.And the synthetic method of ZnOw is mainly zinc powder t method, utilizes controlling zinc oxide crystal whisker growth by carbon reducer technology.These two kinds of method Technology complexity, cost height, one-time investment are big.Therefore it is simple to study technology, and the synthetic method of super fine zinc oxide and ZnOw just seems extremely important cheaply.
Summary of the invention
Proposition of the present invention is intended to utilize zinc salt feedstock production super fine zinc oxide and ZnOw, and selecting ion exchange resin for use is precipitation agent and template, prepares zinc oxide precursor by chemical precipitation method, and calcining obtains super fine zinc oxide and ZnOw.
Technical solution of the present invention is achieved in that
The preparation method of a kind of super fine zinc oxide and ZnOw is characterized in that comprising with ion exchange resin to be precipitation agent and template, by the processing step of Preparation by Uniform Precipitation zinc hydroxide and precipitate and separate and dry back calcining preparation zinc oxide.
Described is precipitation agent and template with ion exchange resin, technological process by Preparation by Uniform Precipitation zinc oxide and whisker thereof is that the strongly basic anion exchange resin that the regeneration of certain density zinc sulfate and certain volume is good adds in the reaction vessel, under agitation condition, reacted 3 hours, washing resin, with gained washings ageing for some time after-filtration, separation, can make zinc hydroxide (presoma of zinc oxide) 70 ℃ of down dry for some time; Subsequently, be placed in the process furnace and calcined 3 hours, promptly get white zinc oxide.
A kind of zinc oxide and ZnOw by method for preparing, when with strongly basic anion exchange resin during as precipitation agent, concentration of reactants generates needle-shape zinc oxide crystal whisker when low, then is the sheet zinc oxide particle when concentration is higher, and the diameter of whisker is 50～100nm.
Compared with prior art, advantage of the present invention is conspicuous, mainly shows:
(1) does the reaction precipitation agent with ion exchange resin, its precipitation configurational ion can be discharged lentamente equably, to the regular effect of precursor, be beneficial to the formation of zinc oxide granularity and pattern in addition.
(2) solved the problem of negatively charged ion wash-out difficulty, resin has reproducibility, for the preparation cost that reduces nano zine oxide has been opened up a new way.
(3) this law is the template of nano zine oxide preparation and the combination of sluggish precipitation, is to have the inorganic nano material synthetic novel method that general applicability has frontier nature again.
Description of drawings
Fig. 1 is super fine zinc oxide of the present invention and preparation method's schema of producing ZnOw.
Embodiment
The super fine zinc oxide as shown in Figure 1 and the preparation method of ZnOw, its technological process comprises:
By ion exchange resin and zinc salt effect, pass through Preparation by Uniform Precipitation: the strongly basic anion exchange resin that the regeneration of certain density solution of zinc sulfate and certain volume is good (201 * 7 types) joins in the reaction vessel, under certain temperature (20,40,60,80 ℃) and agitation condition, reaction 3h, washing resin, gained washings ageing certain hour after-filtration is also separated, at last the dry presoma zinc hydroxide that can make zinc oxide under 70 ℃ of temperature; Subsequently, be placed in the process furnace,, get white zinc oxide at 500～800 ℃ of temperature lower calcination 3h.
Claims (3)
1, the preparation method of a kind of super fine zinc oxide and ZnOw is characterized in that comprising with ion exchange resin to be precipitation agent and template, by the processing step of Preparation by Uniform Precipitation zinc hydroxide and precipitate and separate and dry back calcining preparation zinc oxide.
2, the preparation method of super fine zinc oxide according to claim 1 and ZnOw, it is characterized in that described ion exchange resin is precipitation agent and template, technological process by Preparation by Uniform Precipitation zinc oxide and whisker thereof is that the strongly basic anion exchange resin that the regeneration of certain density zinc sulfate and certain volume is good adds in the reaction vessel, under finite concentration and agitation condition, reacted 3 hours, washing resin, with gained washings ageing for some time after-filtration, separate, can make zinc hydroxide (presoma of zinc oxide) 70 ℃ of down dry for some time; Subsequently, be placed in the process furnace and calcined 3 hours, promptly get white zinc oxide.
3, a kind of zinc oxide and ZnOw for preparing by the method for claim 1 or 2, in reaction with strongly basic anion exchange resin during as precipitation agent, concentration of reactants generates needle-shape zinc oxide crystal whisker when low, concentration is higher then to be sheet zinc oxide, and the diameter of whisker is 50～100nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100892086A CN1317192C (en) | 2005-07-25 | 2005-07-25 | Method for preparing superfine zinc oxide and crystal whisker of zinc oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100892086A CN1317192C (en) | 2005-07-25 | 2005-07-25 | Method for preparing superfine zinc oxide and crystal whisker of zinc oxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1727283A true CN1727283A (en) | 2006-02-01 |
| CN1317192C CN1317192C (en) | 2007-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100892086A Expired - Fee Related CN1317192C (en) | 2005-07-25 | 2005-07-25 | Method for preparing superfine zinc oxide and crystal whisker of zinc oxide |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627303A (en) * | 2012-04-01 | 2012-08-08 | 大连交通大学 | Method for preparing superfine magnesium hydroxide dispersible suspension |
| CN102774874A (en) * | 2012-06-12 | 2012-11-14 | 东北大学秦皇岛分校 | Novel preparation method of nano-zinc oxide |
| CN107540892A (en) * | 2017-09-25 | 2018-01-05 | 安徽中马橡塑制品有限公司 | A kind of high static retention forces plug |
| CN107674230A (en) * | 2017-09-25 | 2018-02-09 | 安徽中马橡塑制品有限公司 | A kind of preparation method of transfusion package film-stuck cover plug |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1238577C (en) * | 2003-09-19 | 2006-01-25 | 中国地质大学（武汉） | Prepn process of lamellar nano zinc oxide monocrystal |
| CN1295384C (en) * | 2004-06-25 | 2007-01-17 | 中国科学院广州化学研究所 | Process for collimated beam shaped nano zinc oxide crystal whisker |
-
2005
- 2005-07-25 CN CNB2005100892086A patent/CN1317192C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102627303A (en) * | 2012-04-01 | 2012-08-08 | 大连交通大学 | Method for preparing superfine magnesium hydroxide dispersible suspension |
| CN102627303B (en) * | 2012-04-01 | 2014-04-02 | 大连交通大学 | Method for preparing superfine magnesium hydroxide dispersible suspension |
| CN102774874A (en) * | 2012-06-12 | 2012-11-14 | 东北大学秦皇岛分校 | Novel preparation method of nano-zinc oxide |
| CN102774874B (en) * | 2012-06-12 | 2014-02-19 | 东北大学秦皇岛分校 | Novel preparation method of nano-zinc oxide |
| CN107540892A (en) * | 2017-09-25 | 2018-01-05 | 安徽中马橡塑制品有限公司 | A kind of high static retention forces plug |
| CN107674230A (en) * | 2017-09-25 | 2018-02-09 | 安徽中马橡塑制品有限公司 | A kind of preparation method of transfusion package film-stuck cover plug |
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| Publication number | Publication date |
|---|---|
| CN1317192C (en) | 2007-05-23 |
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Granted publication date: 20070523 |