CN104496515A - Antibacterial diatomite-purple sand compound filter ceramic and preparation method thereof - Google Patents
Antibacterial diatomite-purple sand compound filter ceramic and preparation method thereof Download PDFInfo
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- CN104496515A CN104496515A CN201410776070.6A CN201410776070A CN104496515A CN 104496515 A CN104496515 A CN 104496515A CN 201410776070 A CN201410776070 A CN 201410776070A CN 104496515 A CN104496515 A CN 104496515A
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Abstract
The invention provides an antibacterial diatomite-purple sand compound filter ceramic and a preparation method thereof. The preparation method comprises the following steps: respectively immersing diatomite and purple sand powder in a silver nitrate solution, wherein the silver nitrate solution fully permeates through holes of diatomite and purple sand powder; then, filtering and drying; mixing in a certain proportion; adding into an adhesive aqueous solution and uniformly mixing and stirring; grouting or pressing and moulding; and drying and sintering to obtain the antibacterial diatomite-purple sand compound filter ceramic. Silver ions which are uniformly distributed inside and on the surface of the filter ceramic have an effect of continuously killing bacteria. Meanwhile, the natural pore structure of diatomite, the double porous structure and the water activating effect of purple sands and the antibacterial effect of silver are organically combined, so that bacteria, fine particle impurities and the like in water are effectively removed.
Description
Technical field
The present invention relates to a kind of anti-bacteria ceramic, particularly relate to a kind of antibacterial diatomite-boccaro combined filtration pottery that can be used for drinking water treatment and preparation method thereof.
Background technology
According to WHO Report: developing country has a large amount of people in the countryside and urban population to can not get safe tap water.At present, the mankind have the disease of 80% unclean relevant with tap water with the mortality ratio of 30%.China's Freshwater resources are very in short supply, and in recent years, the drinking water source of China is generally subject to again pollution in various degree, as the pollution of city domestic sewage, trade effluent water body; Solid waste and acid rain are to the pollution of water body; A large amount of use agriculture chemical is to the pollution etc. of water body, and these all exacerbate the deterioration of Drinking Water in China environment.
Diatomite is a kind of biogenic silicastone, its chemical composition mainly SiO
2, also containing a small amount of Al
2o
3, Fe
2o
3, CaO, MgO, K
2o, Na
2o, P
2o
5and organic matter.Due to diatom shell structure, strong adsorptivity, bigger serface, high porosity, high temperature resistant, the good chemical stability of its uniqueness, diatomite can be made aperture tiny, be evenly distributed, micropore ceramics with low cost, this material can be applicable to various precision and the sterile filtration of the aspects such as beverage, water treatment, petrochemical complex.
Micropore ceramics is used in the process of water treatment, and micropore ceramics can only intercept germ, can not killing pathogenic bacteria, in life-time service process, hole in micropore ceramics can become the hotbed of pathogenic micro-organism, and the tap water of filtration is polluted once again, therefore will carry out antimicrobial treatment to it.Silver compound, as a kind of important sterilization material, has strong antibacterial, sterilization and broad-spectrum antimicrobial ability, makes bacterium not produce resistance, to features such as human-body safety toxicological harmless effects, cause extensive concern.
The feature of boccaro is that surface has particle texture, section under the microscope pore is dual pore, and the dual pore of purple sand material is that the pore that bulk particle and fine particle mutually merge structural pore in bulk particle and molecule in sintering process combines the linear porosity produced.Boccaro is rich in iron, also containing multiple needed by human body trace element, therefore, the fat in food can be decomposed, reduce cholesterol, for health care diseases prevention, prevent that human body from taking in too much aluminum ion and early ageing, senile dementia, children encourage intelligence development, the slim beauty treatment of Ms has simply fantastic effect.Scientific experiment proves, far infrared rays has auxiliary mineralization to pure water, and pure water, after purple stoneware cooking ware pot boils, will be mineralized into the weakly alkaline that pH value is about 7.1, and be conducive to the formation of human body weakly alkaline health-physical fitness.
The application of current boccaro mainly concentrates on and utilizes boccaro to prepare dark-red enameled pottery artwork and Boccaro cooker etc., and be used as container by boccaro in water treatment, diatomite pottery does not all relate to boccaro yet, does not have the effect of boccaro functionalization, does not have anti-microbial effect yet.Antimicrobial filtering pottery aspect, existing technique is only embodied in material surface has silver ions to discharge, and may start burst size comparatively greatly, and limited duration, and the use of coupling agent and highly basic likely pollutes the use of subsequent material.In prior art CN102936141 A by silver powder last doping in ceramic raw material, then sintering obtain anti-bacteria ceramic, the homogeneity that its silver ions of this kind of technique distributes in pottery cannot ensure, and cost is higher.
Summary of the invention
An object of the present invention is to provide a kind of antibacterial diatomite-boccaro combined filtration pottery and preparation method thereof, this invention was carried out carrying silver process to diatomite and boccaro powder in early stage, and utilize and to stir and vacuum-impregnated method makes silver nitrate solution enter material pore interior, and aftershaping, burn till and be made into ceramic.
A preparation method for antibacterial diatomite-boccaro combined filtration pottery, its preparation method comprises following steps:
Diatomite carries silver: be soaked in by diatomite in the silver nitrate solution of 0.05-0.2mol/L, stirs 1-6 hour, vacuum impregnation 1-4 hour, then filtration, drying, obtains carrying silver-colored diatomite.
Boccaro carries silver: be soaked in the silver nitrate solution of 0.05-0.2mol/L by boccaro powder, stirs 1-6 hour, vacuum impregnation 1-4 hour, then filtration, drying, obtains carrying a silver-colored boccaro.
Mixing: prepare burden by weight percentage, 70-90% is carried silver-colored diatomite, adhesive solution that 5-30% carries silver-colored boccaro and 5-20% fully mixes, obtain compound.
Base: compound is put into mould, through slip casting or pressed compact shaping, the then demoulding obtains antibacterial diatomite-boccaro combined filtration biscuit of ceramics;
Sintering: diatomite-electrothermal dark-red pottery biscuit drying is placed in sintering oven and is sintered, and sintering temperature is 950-1160 DEG C, and sintering time is 3-8 hour, obtains antibacterial diatomite-boccaro combined filtration pottery after cooling.
Further, described diatomite is food grade kieselguhr, and size controlling was the powder of 100 mesh sieves.
Further, described boccaro be through selecting materials, broken, removal of impurities and the boccaro powder that obtains after crossing 100 mesh sieves.
Further, described binding agent is the one in Xylo-Mucine, Vltra tears, hydroxyethylmethyl-cellulose.
The present invention also provides a kind of antibacterial diatomite-boccaro combined filtration pottery, and described antibacterial diatomite-boccaro combined filtration pottery obtains by above-mentioned preparation method.
Beneficial effect of the present invention is: silver ions is uniformly distributed in inside and the surface of diatomite-boccaro combined filtration ceramic for filtration, there is the effect of Continuous sterilization, the double multi-hole structure of diatomaceous natural pore structure, boccaro and water-quality activating effect, silver-colored anti-microbial effect combine by the present invention simultaneously, can by the effectively removing such as the bacterium in water, subparticle impurity.Raw materials consumption of the present invention is few, with short production cycle, and prepared antimicrobial filtering pottery is used for Drinking Water Filtration field, have well antibacterial, filter and health-care effect.
Embodiment
Hereafter will describe content of the present invention in detail in conjunction with the embodiments.It should be noted that the combination of technical characteristic or the technical characteristic described in following embodiment should not be considered to isolated, they mutually can be combined and be combined with each other thus reach better technique effect.
Embodiment 1
100g diatomite is soaked in the silver nitrate solution of 0.1mol/L, stirs 2 hours, vacuum impregnation 2 hours, then filtration, drying, obtain carrying silver-colored diatomite.Boccaro powder is soaked in the silver nitrate solution of 0.1mol/L, stirs 2 hours, vacuum impregnation 1 hour, then filtration, drying, obtain carrying a silver-colored boccaro.Prepare burden by weight percentage, by 80% year silver-colored diatomite, 10% year silver-colored boccaro and 10% the Vltra tears aqueous solution fully mix, obtain compound.Compound is put into mould, and shaping through pressed compact, the then demoulding obtains antibacterial diatomite-boccaro combined filtration biscuit of ceramics; Diatomite-electrothermal dark-red pottery biscuit drying is placed in sintering oven and is sintered, and sintering temperature is 1000 DEG C, and sintering time is 6 hours, obtains antibacterial diatomite-boccaro combined filtration pottery after cooling.
Embodiment 2
500g diatomite is soaked in the silver nitrate solution of 0.15mol/L, stirs 4 hours, vacuum impregnation 3 hours, then filtration, drying, obtain carrying silver-colored diatomite.Boccaro powder is soaked in the silver nitrate solution of 0.1mol/L, stirs 2 hours, vacuum impregnation 2 hours, then filtration, drying, obtain carrying a silver-colored boccaro.Prepare burden by weight percentage, by 70% year silver-colored diatomite, 20% year silver-colored boccaro and 10% sodium carboxymethyl cellulose solution fully mix, obtain compound.Compound is put into mould, and shaping through pressed compact, the then demoulding obtains antibacterial diatomite-boccaro combined filtration biscuit of ceramics; Diatomite-electrothermal dark-red pottery biscuit drying is placed in sintering oven and is sintered, and sintering temperature is 1100 DEG C, and sintering time is 6 hours, obtains antibacterial diatomite-boccaro combined filtration pottery after cooling.
Embodiment 3
200g diatomite is soaked in the silver nitrate solution of 0.1mol/L, stirs 4 hours, vacuum impregnation 2 hours, then filtration, drying, obtain carrying silver-colored diatomite.Boccaro powder is soaked in the silver nitrate solution of 0.05mol/L, stirs 2 hours, vacuum impregnation 1 hour, then filtration, drying, obtain carrying a silver-colored boccaro.Prepare burden by weight percentage, by 80% year silver-colored diatomite, 15% year silver-colored boccaro and 5% sodium carboxymethyl cellulose solution fully mix, obtain compound.Compound is put into mould, and shaping through pressed compact, the then demoulding obtains antibacterial diatomite-boccaro combined filtration biscuit of ceramics; Diatomite-electrothermal dark-red pottery biscuit drying is placed in sintering oven and is sintered, and sintering temperature is 1120 DEG C, and sintering time is 6 hours, obtains antibacterial diatomite-boccaro combined filtration pottery after cooling.
Embodiment 4
2000g diatomite is soaked in the silver nitrate solution of 0.15mol/L, stirs 5 hours, vacuum impregnation 3 hours, then filtration, drying, obtain carrying silver-colored diatomite.Boccaro powder is soaked in the silver nitrate solution of 0.15mol/L, stirs 3 hours, vacuum impregnation 2 hours, then filtration, drying, obtain carrying a silver-colored boccaro.Prepare burden by weight percentage, by 75% year silver-colored diatomite, 15% year silver-colored boccaro and 10% the hydroxyethylmethyl-cellulose aqueous solution fully mix, obtain compound.Compound is put into mould, and through injection forming, the then demoulding obtains antibacterial diatomite-boccaro combined filtration biscuit of ceramics; Diatomite-electrothermal dark-red pottery biscuit drying is placed in sintering oven and is sintered, and sintering temperature is 1150 DEG C, and sintering time is 7 hours, obtains antibacterial diatomite-boccaro combined filtration pottery after cooling.
Although give some embodiments of the present invention, it will be understood by those of skill in the art that without departing from the spirit of the invention herein, can change embodiment herein.Above-described embodiment is exemplary, should using embodiment herein as the restriction of interest field of the present invention.
Claims (5)
1. a preparation method for antibacterial diatomite-boccaro combined filtration pottery, is characterized in that, comprise following steps:
Diatomite carries silver: be soaked in by diatomite in the silver nitrate solution of 0.05-0.2mol/L, stirs 1-6 hour, vacuum impregnation 1-4 hour, then filtration, drying, obtains carrying silver-colored diatomite;
Boccaro carries silver: be soaked in the silver nitrate solution of 0.05-0.2mol/L by boccaro powder, stirs 1-6 hour, vacuum impregnation 1-4 hour, then filtration, drying, obtains carrying a silver-colored boccaro;
Mixing: prepare burden by weight percentage, 70-90% is carried silver-colored diatomite, adhesive solution that 5-30% carries silver-colored boccaro and 5-20% fully mixes, obtain compound;
Base: compound is put into mould, through slip casting or pressed compact shaping, the then demoulding obtains antibacterial diatomite-boccaro combined filtration biscuit of ceramics;
Sintering: diatomite-electrothermal dark-red pottery biscuit drying is placed in sintering oven and is sintered, and sintering temperature is 950-1160 DEG C, and sintering time is 3-8 hour, obtains antibacterial diatomite-boccaro combined filtration pottery after cooling.
2. the preparation method of the antibacterial diatomite according to right 1-boccaro combined filtration pottery, it is characterized in that, described diatomite is food grade kieselguhr, size controlling was the powder of 100 mesh sieves.
3. the preparation method of the antibacterial diatomite according to right 1-boccaro combined filtration pottery, is characterized in that, described boccaro is the boccaro powder obtained after fragmentation, removal of impurities and mistake 100 mesh sieves.
4. the preparation method of antibacterial diatomite according to claim 1-boccaro combined filtration pottery, is characterized in that described binding agent is the one in Xylo-Mucine, Vltra tears, hydroxyethylmethyl-cellulose.
5. antibacterial diatomite-boccaro combined filtration pottery, is characterized in that, described antibacterial diatomite-boccaro combined filtration pottery obtains by the preparation method in Claims 1-4 described in any one.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106518006A (en) * | 2016-11-11 | 2017-03-22 | 江西理工大学 | In-situ composite antibacterial filtering ceramic as well as preparation method and application thereof |
| CN108821743A (en) * | 2018-07-17 | 2018-11-16 | 仝建川 | A kind of preparation method of the dark-red enameled pottery of health care |
| CN111410510A (en) * | 2020-04-21 | 2020-07-14 | 福建省泉州达盛窑陶瓷有限公司 | Manufacturing process of antibacterial dark-red enameled pottery |
| CN112357984A (en) * | 2020-10-26 | 2021-02-12 | 杭州电子科技大学 | Silver-doped clay particle, preparation method thereof and biological sand filtering system |
| CN114573331A (en) * | 2022-03-16 | 2022-06-03 | 佛山市芯耀环保科技有限公司 | Antibacterial scale-inhibiting ceramic material and preparation method and application thereof |
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| CN101991873A (en) * | 2009-08-13 | 2011-03-30 | 徐成龙 | Porous silver-carrying adsorptive bactericidal ball |
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| CN1621388A (en) * | 2003-11-27 | 2005-06-01 | 北京赛奇特种陶瓷功能制品工程研究中心 | Special ceramic material with antibacterial and water activating functions and preparation method and application thereof |
| CN101991873A (en) * | 2009-08-13 | 2011-03-30 | 徐成龙 | Porous silver-carrying adsorptive bactericidal ball |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106518006A (en) * | 2016-11-11 | 2017-03-22 | 江西理工大学 | In-situ composite antibacterial filtering ceramic as well as preparation method and application thereof |
| CN108821743A (en) * | 2018-07-17 | 2018-11-16 | 仝建川 | A kind of preparation method of the dark-red enameled pottery of health care |
| CN111410510A (en) * | 2020-04-21 | 2020-07-14 | 福建省泉州达盛窑陶瓷有限公司 | Manufacturing process of antibacterial dark-red enameled pottery |
| CN112357984A (en) * | 2020-10-26 | 2021-02-12 | 杭州电子科技大学 | Silver-doped clay particle, preparation method thereof and biological sand filtering system |
| CN112357984B (en) * | 2020-10-26 | 2023-09-01 | 杭州电子科技大学 | Silver-doped clay particles, preparation method thereof and biological sand filtering system |
| CN114573331A (en) * | 2022-03-16 | 2022-06-03 | 佛山市芯耀环保科技有限公司 | Antibacterial scale-inhibiting ceramic material and preparation method and application thereof |
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