CN102513083A - Preparation method of diatomite loaded nano-zinc oxide composite powder material - Google Patents
Preparation method of diatomite loaded nano-zinc oxide composite powder material Download PDFInfo
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- CN102513083A CN102513083A CN2011104148803A CN201110414880A CN102513083A CN 102513083 A CN102513083 A CN 102513083A CN 2011104148803 A CN2011104148803 A CN 2011104148803A CN 201110414880 A CN201110414880 A CN 201110414880A CN 102513083 A CN102513083 A CN 102513083A
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Abstract
The invention discloses a preparation method of a diatomite loaded nano-zinc oxide composite powder material. The method comprises: adding water into zinc nitrate and conducting stirring for dissolution so as to obtain a zinc nitrate solution with a concentration of 0.3mol/L-0.7mol/L, adding 5%-20% of diatomite by mass, then slowly adding an ammonia water solution with a concentration of 0.2mol/L-0.5mol/L for reaction, and finally subjecting the reactant to filtering, washing, drying and calcination, with the drying temperature maintained at 80DEG C-120DEG C, the calcination temperature kept at 350DEG C-700DEG C, and the thermal insulation time controlled at 1-4h, thus obtaining the diatomite loaded nano-zinc oxide composite powder material. The diatomite loaded nano-zinc oxide composite powder material prepared by the method of the invention has nano-zinc oxide particles loaded on the surfaces of diatomite particles, and the particle size of the nano-zinc oxide particles is 20nm-50nm. In natural light, the photocatalytic degradation rate of the diatomite loaded nano-zinc oxide composite powder material to methyl orange can be greater than 80% within 6h.
Description
Technical field
The present invention relates to a kind of tripolite loading nano zinc oxide composite powder preparation methods.
Technical background
Nano zine oxide ZnO is a kind of semiconductor material with wide forbidden band, and efficient, nontoxic, stable performance are widely used in fields such as opto-electronic conversion, photocatalysis, chemical sensor and luminescent material.Since its can be under the UV-irradiation condition degrade organic compounds, and zinc ion has the contact sterilization performance, also plays an important role at environmental protection, mildew-resistant building materials production field.But there is two large problems in it in the actual use in this field.
The one, nano zine oxide ZnO is prone to reunite and too loose being difficult to reclaims, and it is difficult for full and uniform dispersion with raw materials for production in production.It is loaded on research and solve it on the suitable carriers material at present and be prone to reunite and too loose being difficult to reclaims, be difficult for one of main method of full and uniform dispersion.
Diatomite is that a kind of main component is amorphous Si O
2, the mineral that porosity is big, characteristic such as its pore size distribution range is several nanometers to tens nanometer, and it is big to have specific area, and absorption property is strong, and chemical property is stable is applicable to supported nano zinc oxide ZnO.Diatomite is abundant at China's northeast Changbaishan area reserves, and quality is good, has advantages such as wide material sources, production cost are low.
Summary of the invention
The objective of the invention is the problem to present nano zinc oxide photocatalysis material existence, is carrier with diatomite, and a kind of tripolite loading nano zinc oxide composite powder preparation methods is provided.The tripolite loading nano zinc oxide composite powder material of this method preparation not only can improve utilization rate and the photocatalysis performance of nano zine oxide ZnO to visible light, and energy consumption is low.
The present invention's method is that zinc nitrate is added the water stirring and dissolving; The zinc nitrate concentration of processing is 0.3mol/L～0.7mol/L; Add diatomite, diatomaceous mass fraction is 5%～20%, and the ammonia spirit that slowly adds concentration then and be 0.2mol/L～0.5mol/L reacts; With reactant filtration, washing, dry and calcining, baking temperature is 80 ℃～120 ℃ at last, and calcining heat is 350 ℃～700 ℃, and temperature retention time is 1～4h, promptly gets tripolite loading nano zinc oxide composite powder material.
The invention has the beneficial effects as follows:
1, the tripolite loading nano ZnO composite powder material of the present invention's method preparation, the diatomite particle area load nano zine oxide ZnO particle, granularity is 20nm～50nm.
2, tripolite loading nano zinc oxide composite powder material has strong absorption to wave-length coverage at the ultraviolet light of 200～400nm, and wave-length coverage is had relative absorption at the visible light of 400～550nm; Under the natural daylight, in the 6h to the photocatalytic degradation rate of methyl orange greater than 80%.
The specific embodiment
Embodiment one:
Get the 75kg zinc nitrate, in agitated reactor, add water 500L, add 56.6kg diatomite after the stirring and dissolving, dispersed with stirring is even; Under 30 ℃ of constant temperature, stirring condition, slowly add the 500L dilute ammonia solution and react then; Reactant is filtered, and temperature control is calcined 1h down for 400 ℃ in rotary furnace after the heated-air circulation oven drying, promptly gets tripolite loading nano zinc oxide composite powder material.
Embodiment two:
Get the 75kg zinc nitrate, in agitated reactor, add water 500L, add 190kg diatomite after the stirring and dissolving, dispersed with stirring is even; Under 30 ℃ of constant temperature, stirring condition, slowly add the 500L dilute ammonia solution and react then; Reactant is filtered, and temperature control is calcined 1h down for 600 ℃ in rotary furnace after the heated-air circulation oven drying, promptly gets tripolite loading nano zinc oxide composite powder material.
Embodiment three:
Get the 100kg zinc nitrate, in agitated reactor, add water 500L, add 275kg diatomite after the stirring and dissolving, dispersed with stirring is even; Under 30 ℃ of constant temperature, stirring condition, slowly add the 500L dilute ammonia solution and react then; Reactant is filtered, and temperature control is calcined 1h down for 400 ℃ in rotary furnace after the heated-air circulation oven drying, promptly gets tripolite loading nano zinc oxide composite powder material.Table 1 is the testing result of each embodiment products obtained therefrom;
The check and analysis result of table 1 embodiment sample.
Annotate: it is in the methyl orange solution of 50mg/L that the 0.1g composite sample adds 100ml concentration.
Claims (1)
1. tripolite loading nano zinc oxide composite powder preparation methods; This method is that zinc nitrate is added the water stirring and dissolving; The zinc nitrate concentration of processing is 0.3mol/L～0.7mol/L; Add diatomite, the ammonia spirit that slowly adds concentration then and be 0.2mol/L～0.5mol/L reacts, and diatomaceous mass fraction is 5%～20%; With reactant filtration, washing, dry and calcining, baking temperature is 80 ℃～120 ℃ at last, and calcining heat is 350 ℃～700 ℃, and temperature retention time is 1～4h, promptly gets tripolite loading nano zinc oxide composite powder material.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007917A (en) * | 2012-12-21 | 2013-04-03 | 黑龙江省玉琦装饰涂料有限公司 | Preparation method of nano-zinc oxide/diatomite compound photocatalytic material |
| CN104353413A (en) * | 2014-10-28 | 2015-02-18 | 常州大学 | Modification method of blue-green algae diatom ooze adsorbing material |
| CN106186042A (en) * | 2016-07-15 | 2016-12-07 | 东莞市民益生物科技有限公司 | A kind of feedstuff three-dimensional multistage hole nano zine oxide and preparation method thereof |
| CN108014027A (en) * | 2018-01-24 | 2018-05-11 | 吉林法德龙硅藻土新材料科技有限公司 | A kind of composite diatomite talcum powder and preparation method thereof |
| CN109401584A (en) * | 2018-09-27 | 2019-03-01 | 广东太氧谷环保科技有限公司 | A kind of children are without antibacterial aqueous diatom coating of aldehyde and preparation method thereof |
| CN109851230A (en) * | 2019-03-25 | 2019-06-07 | 成都新柯力化工科技有限公司 | A kind of building glass and preparation method with except haze function |
| CN111467251A (en) * | 2019-11-06 | 2020-07-31 | 成都理工大学 | Calcined kaolin loaded nano ZnO composite anti-ultraviolet agent and preparation method thereof |
| CN114988456A (en) * | 2022-06-21 | 2022-09-02 | 深圳市尚维高科有限公司 | Zinc oxide composite particle, preparation method and application thereof in virus splitting in nucleic acid detection |
| CN115537959A (en) * | 2021-09-28 | 2022-12-30 | 江苏青昀新材料科技有限公司 | Composite material |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007917A (en) * | 2012-12-21 | 2013-04-03 | 黑龙江省玉琦装饰涂料有限公司 | Preparation method of nano-zinc oxide/diatomite compound photocatalytic material |
| CN104353413A (en) * | 2014-10-28 | 2015-02-18 | 常州大学 | Modification method of blue-green algae diatom ooze adsorbing material |
| CN106186042A (en) * | 2016-07-15 | 2016-12-07 | 东莞市民益生物科技有限公司 | A kind of feedstuff three-dimensional multistage hole nano zine oxide and preparation method thereof |
| CN106186042B (en) * | 2016-07-15 | 2018-04-06 | 东莞市民益生物科技有限公司 | A kind of feed three-dimensional multistage hole nano zine oxide and preparation method thereof |
| CN108014027A (en) * | 2018-01-24 | 2018-05-11 | 吉林法德龙硅藻土新材料科技有限公司 | A kind of composite diatomite talcum powder and preparation method thereof |
| CN108014027B (en) * | 2018-01-24 | 2020-12-29 | 刁广祥 | Diatomite composite talcum powder and preparation method thereof |
| CN109401584A (en) * | 2018-09-27 | 2019-03-01 | 广东太氧谷环保科技有限公司 | A kind of children are without antibacterial aqueous diatom coating of aldehyde and preparation method thereof |
| CN109851230A (en) * | 2019-03-25 | 2019-06-07 | 成都新柯力化工科技有限公司 | A kind of building glass and preparation method with except haze function |
| CN111467251A (en) * | 2019-11-06 | 2020-07-31 | 成都理工大学 | Calcined kaolin loaded nano ZnO composite anti-ultraviolet agent and preparation method thereof |
| CN115537959A (en) * | 2021-09-28 | 2022-12-30 | 江苏青昀新材料科技有限公司 | Composite material |
| CN114988456A (en) * | 2022-06-21 | 2022-09-02 | 深圳市尚维高科有限公司 | Zinc oxide composite particle, preparation method and application thereof in virus splitting in nucleic acid detection |
| CN114988456B (en) * | 2022-06-21 | 2023-10-03 | 深圳市尚维高科有限公司 | Zinc oxide composite particle, preparation method and application thereof in virus splitting in nucleic acid detection |
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Application publication date: 20120627 |