CN101731268B - Nano silver porous material and manufacturing method thereof - Google Patents
Nano silver porous material and manufacturing method thereof Download PDFInfo
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- CN101731268B CN101731268B CN200810176533XA CN200810176533A CN101731268B CN 101731268 B CN101731268 B CN 101731268B CN 200810176533X A CN200810176533X A CN 200810176533XA CN 200810176533 A CN200810176533 A CN 200810176533A CN 101731268 B CN101731268 B CN 101731268B
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Abstract
The invention relates to a nano silver porous material and a manufacturing method thereof. The manufacturing method comprises the following steps of: firstly mixing a nano silver precursor water solution and a fixing agent to form a mixing agent; then adding an appropriate amount of porous material into the mixing agent, and standing acquired suspension liquid for a reserved time so as to enable nano silver precursors to be fixed in the porous material; and finally filtering the suspension liquid so as to enable the porous material to be separated from the solution, then drying the acquired nano silver porous material precursors to obtain the nano silver porous material. Thus, the nano sliver can be certainly formed on the porous material, and consequently, the problem that the traditional silver-carrying particles are overlarge and doped with silver ion compounds is solved.
Description
Technical field
The present invention relates to a kind of Nano Silver material and manufacturing approach thereof, particularly a kind of nano silver porous material and manufacturing approach thereof.
Prior art
Activated carbon is a kind of porous material, and its advantage is that the specific surface area (BETSurface Area) of activated carbon is big, and adsorptivity is strong, can desulfurization, take off benzene, deodorization, decolouring, can also optionally remove specific chemical in liquid or the gas.
Silver has antibacterial action; No matter silver of colloid in the past (particle that comprises the trickle silver of particle diameter between 10～100 nanometers) or Nano Silver in recent years all are widely used on the antimicrobial product; For example before penicillin comes to light; Colloid silver is regarded as a kind of antibiotic, can kill many different types of antibiotic-resistant germs.Research in recent years shows; With the nano-Ag particles is example; Because its surface is positively charged, can with cell wall/film of germ there be great the combination easily, and can directly gets into thalline; (SH) combine, so the particle of Nano Silver can stop the metabolism of thalline and it is lost activity and can't work the mischief to human body rapidly with the mercaptan of bacterial metabolism oxygen.
Activated carbon surface is carried behind the silver not but still is had the function of adsorbent, and can also have antibacterial functions.Yet; Though at present the market is uploaded that the Related product scope of application of silver-colored activated carbon is wide, antibiotic rate good and is that microorganism is not produced chemical sproof inorganic antiseptic; But at present activated carbon surface carry the silver-colored particle that silver mostly is the non-nano level, make that carrying silver-colored activated carbon makes the bactericidal effect reduction easily because silver-colored coalescence is excessive, if thereby the raising activated carbon carry silver-colored total amount; That youngest comes off because of silver carrying amount can cause silver too much easily, causes secondary environmental pollution; But silver carrying amount can only produce limited bactericidal action very little the time, and this is the problem that present industry still need continue to overcome.
Summary of the invention
In order to address the above problem; The purpose of this invention is to provide a kind of nano silver porous material and manufacturing approach thereof; The aqueous solution of Nano Silver precursor is mixed with sticking agent producing the solution of Nano Silver precursor mixture, the porous material of proper proportion is added in the solution of Nano Silver precursor mixture, stir and make it even mixing; Leaving standstill a period of time is bonded on the porous material Nano Silver precursor, wait to remove solution moisture after oven dry promptly obtain nano silver porous material.
Description of drawings
Shown in Figure 1 is the manufacturing approach of the nano silver active material with carbon element of the embodiment of the invention.
Fig. 2 A is depicted as the photo of the nano silver active carbon of 10000 times of amplifications of the present invention.
Fig. 2 B is depicted as the photo of the nano silver active carbon of 20000 times of amplifications of the present invention.
The primary clustering symbol description
| 10、20、30、40、50、60 | Step |
Embodiment
Following examples are the manufacturing approach of nano silver porous material, and please refer to Fig. 1 simultaneously.
The Nano Silver precursor of crystal powder powder is dissolved in the water (step 10), and add sticking agent (step 20).Then, porous material is added in the formed Nano Silver precursor of step 20 mixed solution (step 30), stir and make it even mixing, to form the aaerosol solution of Nano Silver precursor and porous material.Then; Leave standstill solution a period of time (step 40), time of repose was from 0.5 hour to 36 hours, and the moisture of removing the nano silver porous material aaerosol solution again is to form a nano silver porous material precursor (step 50); And oven dry nano silver porous material precursor (step 60) is to obtain nano silver porous material; Wherein, bake out temperature is controlled at respectively between 80 ℃ and 300 ℃, drying time be controlled at 5～24 hours during in.
In the above-described embodiments, the Nano Silver precursor can be silver nitrate, silver acetate, silver bromide, actol, silver chlorate, silver fluoride, silver iodide, silver sulfate, silver orthophosphate or its combination etc.Sticking agent can be weak acid solution, weak caustic solution or its mixed solution, and weak acid generally adopts glacial acetic acid, and weak base then is ammoniacal liquor, and for example commercial concentration is about 25% ammoniacal liquor.Porous material; Like pottery, activated carbon, vacuum glass ball, solid glass ball, bamboo charcoal, cocos active carbon, charcoal, 2; 6-time the biphenyl oxide is polymer based porous material or its combination etc., and wherein activated carbon can be powdered activated carbon, granule activated carbon, fibrous activated carbon, column activated carbon or honeycomb activated carbon etc.
The percentage by weight of Nano Silver precursor, water, sticking agent and porous material needs allotment in certain proportion; In an embodiment, the scope of the percentage by weight (%) of more excellent Nano Silver precursor and water, sticking agent, porous material be respectively 0.025% to 0.5%, 1.25% to 25%, between 0.05% to 1%.
Decolouring, the food that utilizes the nano silver active carbon of manufacturing of the present invention can be widely used in deodorizing, sterilization, recovery solvent, catalyst carrier, gas or liquid adsorption, filtration, purification gas or liquid, various medicines preserves or the charge of various industrial gas defence utensils such as refining, filter core, air conditioner filter screen, radiator filter screen, air cleaner filter screen, aquarium filter material, activated carbon fiber cloth, cleaning supplies additive, or the activated carbon mouth mask etc.
Following microphoto with reference to Fig. 2 A and Fig. 2 B; It is respectively amplify 10,000 times with 20,000 times nano silver active carbon surface, wherein gray background is a porous material, black partly is its micropore; Small white bright spot is the particle of Nano Silver; It is thus clear that the distribution of particles of Nano Silver is very even, mark micron (μ m, 1 μ m=10 under the photo
-6Meter) ratio scale contrasts white micro bright point and can learn that its average grain diameter is smaller or equal to 100 nanometers (nm, 1nm=10
-9Meter), the particle that can confirm Nano Silver in the present embodiment thus is a nanoscale.
Secondly, utilize silver to break away from the pull-out capacity of the method test Nano Silver of measurement examination.Analyze silver content with induction coupled plasma atomic spectrograph with the water after the filtration of nano silver active carbon.Like table one, the filtered water in 7 days of nano silver active carbon of the present invention is not found silver content, but the nano silver active carbon of knowledge capital invention has extremely strong pull-out capacity.N.d. in the table one (not detected) expression does not detect silver content, and the instrument detecting limit is 0.01ppm.
Table one
In addition, carry out the measurement of the specific surface area of nano silver active carbon of the present invention, mensuration is ASTM D3663-92, measures the surface area (m of the every gram of activated carbon
2/ g).Method of testing contrasts the measurement result of the specific surface area of pure activated carbon and nano silver active carbon of the present invention, whether reduces original function because of silver-colored particle covers to judge activated carbon.Result such as table two, the specific surface area of pure activated carbon are 926m
2/ g, the specific surface area of nano silver active carbon of the present invention is 895m
2/ g can know that the result is lower than 3.5%, influences the specific surface area of activated carbon hardly.
Table two
| Test event | Unit | Activated carbon | Nano silver active carbon |
| Specific surface area | m 2/g | 926 | 895 |
In addition; Utilize the active carbon adsorption ability of iodine number thermometrically nano silver active carbon of the present invention; Measure the adsorbed iodine quality (mg/g) of every gram activated carbon; In order to judge whether Nano Silver influences the adsorption efficiency of activated carbon, and method of testing is ASTM4607, contrasts the iodine number of pure activated carbon and nano silver active carbon of the present invention.Result such as table three, the result shows that the iodine number test of pure activated carbon is 1003 (mg/g), and the iodine number of nano silver active carbon of the present invention is 1040 (mg/g), it shows that the nano silver active carbon of handling through the present invention still keeps original adsorption efficiency well.
Table three
| Test event | Unit | Activated carbon | Nano silver active carbon |
| Iodine | mg/g | 1003 | 1040 |
Above-described embodiment only is for technological thought of the present invention and characteristics are described; Its purpose is to make those skilled in the art can understand content of the present invention and implements according to this; And can not be used for limiting scope of the present invention; That is, every equivalence of being done according to the disclosed spirit of the present invention changes or modifies, and must be encompassed in the scope of the present invention.
Claims (7)
1. the manufacturing approach of a nano silver porous material comprises the following steps:
One Nano Silver precursor is blended in the water and adds a sticking agent, to form a Nano Silver precursor mixture solution;
In said Nano Silver precursor mixture solution, add and stir a porous material, to form a Nano Silver precursor and porous material aaerosol solution;
Remove the moisture of said Nano Silver precursor and porous material aaerosol solution, to form a nano silver porous material precursor: and
Dry said nano silver porous material precursor, to form a nano silver porous material.
2. the manufacturing approach of nano silver porous material as claimed in claim 1, the weight ratio of wherein said Nano Silver precursor and water is between 0.025% and 0.5%.
3. the manufacturing approach of nano silver porous material as claimed in claim 1, the weight ratio of wherein said Nano Silver precursor and said sticking agent is between 1.25% and 25%.
4. the manufacturing approach of nano silver porous material as claimed in claim 1, the weight ratio of wherein said Nano Silver precursor and said porous material is between 0.05% and 1%.
5. the manufacturing approach of nano silver porous material as claimed in claim 1, the crystalline powder that wherein said Nano Silver precursor can be silver nitrate, silver acetate, silver bromide, actol, silver chlorate, silver fluoride, silver iodide, silver sulfate, silver orthophosphate or its combination.
6. the manufacturing approach of nano silver porous material as claimed in claim 1, wherein said sticking agent can be a glacial acetic acid, an ammoniacal liquor or its mixed solution.
7. the manufacturing approach of nano silver porous material as claimed in claim 1, wherein in the step of the said nano silver porous material precursor of oven dry, bake out temperature is between 80 ℃ to 300 ℃, and drying time is between 5 to 24 hours.
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| CN101731268B true CN101731268B (en) | 2012-11-28 |
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| CN103143329A (en) * | 2013-03-25 | 2013-06-12 | 福州大学 | Antibiosis silver-loaded shell-structure spherulite activated carbon and preparation method thereof |
| CN103435801B (en) * | 2013-07-19 | 2016-03-30 | 苏州纳埃净化科技有限公司 | A kind of silver chloride/porous fragrance frame composite material and preparation method thereof |
| CN103653406A (en) * | 2013-12-17 | 2014-03-26 | 江苏波波熊纺织品有限公司 | Detachable anti-bacterium haze-proof mask |
| CN104190357A (en) * | 2014-08-03 | 2014-12-10 | 金碧娥 | Method for preparing coconut carbon nano-silver activated carbon |
| CN104886138B (en) * | 2015-06-22 | 2018-04-03 | 中国计量大学 | A kind of preparation method of Ag/ bamboo charcoal composite materials |
| CN106180747B (en) * | 2016-07-07 | 2019-01-22 | 王荔 | A kind of palladium copper binary alloy nano material, preparation method and its CO is restored as catalyst electro-catalysis2Application |
| CN106192380A (en) * | 2016-08-26 | 2016-12-07 | 明光市瑞洁日用品有限公司 | A kind of preparation method of antibiotic cleaning cloth |
| CN106924214B (en) * | 2017-05-11 | 2019-12-06 | 四川理工学院 | Preparation method of bamboo charcoal/chitosan composite microspheres with drug slow release performance |
| CN108330715A (en) * | 2018-03-02 | 2018-07-27 | 安徽鑫光新材料科技股份有限公司 | A kind of electrostatic prevented corrugated paper plate with antibacterial effect |
| CN108677272B (en) * | 2018-05-15 | 2020-09-22 | 华南理工大学 | Micron-sized inorganic antibacterial fiber and preparation method thereof |
| CN108726622A (en) * | 2018-05-29 | 2018-11-02 | 佛山市盟发净水科技有限公司 | A kind of activated carbon filter |
| CN108971512B (en) * | 2018-09-14 | 2021-04-02 | 江西科技师范大学 | Green preparation method and application of porous spongy Ag square particles |
| CN113475797A (en) * | 2021-08-03 | 2021-10-08 | 青岛圣德海思医疗科技有限公司 | Mask with sterilization function |
-
2008
- 2008-11-17 CN CN200810176533XA patent/CN101731268B/en active Active
Non-Patent Citations (4)
| Title |
|---|
| 刘文宏等.不同温度下HNO_3改性对活性炭吸附银的影响.《中国有色金属学报》.2007,(第04期), * |
| 曾戎等.活性炭纤维的热处理及其氧化还原吸附银的研究.《合成纤维工业》.1999,(第01期), * |
| 苗润才等.纳米银粒子表面包覆分子共振吸收峰的红移现象.《光子学报》.1999,(第06期), * |
| 黄磊等.纳米Ag-Al_2O_3复合粉末的制备.《浙江大学学报(工学版)》.2003,(第01期), * |
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