CN213707755U - Preparation system of silver-loaded porous carbon microspheres - Google Patents
Preparation system of silver-loaded porous carbon microspheres Download PDFInfo
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- CN213707755U CN213707755U CN202022717394.6U CN202022717394U CN213707755U CN 213707755 U CN213707755 U CN 213707755U CN 202022717394 U CN202022717394 U CN 202022717394U CN 213707755 U CN213707755 U CN 213707755U
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Abstract
The utility model discloses a preparation system of silver-loaded porous carbon microspheres, which belongs to the field of activated carbon preparation and comprises a reaction vessel, an argon gas input machine, an ultrasonic sprayer, a conveying pipeline and a tubular furnace which are sequentially connected; the reaction vessel is used for preparing a mixed solution of a carbon source and a silver salt solution; the ultrasonic sprayer is used for atomizing the mixed solution; the argon input machine is used for inputting argon into the ultrasonic sprayer so that the argon carries atomized fog drops to enter the tubular furnace from the conveying pipeline; the tubular furnace is used for carrying out pyrolysis reaction on the atomized fog drops to prepare the silver-loaded porous carbon microspheres. The utility model discloses a preparation system can adopt the normal position mode to inlay the year silver porous carbon microballon that forms in the cavity porous carbon with silver granule, not only makes nanometer silver distribute evenly, combines firmly with the carbon matrix moreover for silver granule is difficult to drop, thereby has guaranteed validity and life-span in the use.
Description
Technical Field
The utility model mainly relates to the field of activated carbon preparation, in particular to a preparation system of silver-loaded porous carbon microspheres.
Background
The porous activated carbon material has huge specific surface area and abundant pore structure, has larger adsorption quantity and faster adsorption rate to chlorine, organic matters and other undesirable impurities in water, is easy to regenerate, is matched with silver with stronger bactericidal performance, and is considered to be the best combination in air or drinking water treatment. The silver-carrying antibacterial agent taking the porous activated carbon material as the carrier is usually loaded on the carrier by the physical adsorption of metal silver particles. The preparation method of the antibacterial agent generally utilizes the high-efficiency adsorption performance of a porous activated carbon material (activated carbon or carbon fiber), metal or metal compounds such as silver, silver salt and the like are adsorbed and deposited on the activated carbon material by a mixed melting method or an impregnation method, and the activated carbon material is properly treated to prepare the porous carbon containing the nano metal silver particles with high specific surface area and high dispersibility. The antibacterial performance of the silver-loaded porous carbon depends on the size of the specific surface area, and when the specific surface area is the same, the antibacterial property is enhanced along with the increase of the silver content; when the silver content is the same, the larger the specific surface area is, the stronger the sterilization ability is. The surface properties (the number of micropores, graphitization degree, reactivity and the like) of porous carbon and the initial concentration of silver ions in a solution influence the size and the form of metal silver particles, the metal silver adsorbed to the surface can be reduced into nano-scale particles through a mixed melting method or an impregnation method, but the silver particles are still difficult to wrap the micropores of the active porous carbon and are adsorbed to the outer surface, and part of the micropores are blocked, so that the washing resistance of the porous carbon is poor.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a preparation system of year silver porous carbon microballon makes nanometer silver inlay in mesopore porous carbon with the normal position mode through this system to combine firmly with the carbon substrate, make the silver granule be difficult to drop, thereby guaranteed validity and life-span in the use.
In order to solve the technical problem, the utility model provides a technical scheme as follows:
on one hand, the utility model provides a preparation system of silver-loaded porous carbon microspheres, which comprises a reaction vessel, and an argon gas input machine, an ultrasonic sprayer, a conveying pipeline and a tubular furnace which are connected in sequence;
the reaction vessel is used for preparing a mixed solution of a carbon source and a silver salt solution;
the ultrasonic sprayer is used for atomizing the mixed solution;
the argon input machine is used for inputting argon into the ultrasonic sprayer so that the argon carries atomized fog drops to enter the tubular furnace from the conveying pipeline;
the tubular furnace is used for carrying out pyrolysis reaction on the atomized fog drops to prepare the silver-loaded porous carbon microspheres.
Further, the tube furnace comprises a quartz tube communicated with the conveying pipeline.
The device further comprises a washing device and a vacuum drying device, wherein the washing device is used for washing the powder obtained by the reaction in the tube furnace, and the vacuum drying device is used for carrying out vacuum drying on the washed powder.
Further, the vacuum drying equipment is a vacuum drying oven.
Further, the reaction vessel comprises a first reaction vessel, a second reaction vessel, a third reaction vessel and an ultrasonic machine;
the first reaction vessel is used for dissolving and preparing silver salt solution;
the second reaction vessel is used for dissolving and preparing a carbon source solution;
the third reaction vessel is used for mixing a silver salt solution and a carbon source solution;
the ultrasonic machine is used for respectively carrying out ultrasonic treatment on the carbon source solution and the mixed solution.
After adopting such design, the utility model discloses following advantage has at least:
the preparation system of the utility model atomizes the carbon source (organic carbon and graphene oxide) and silver salt solution, and then inputs the carbon source and silver salt solution into the tube furnace to be pyrolyzed at high temperature to form carbon spheres, so that the carbon spheres have rich pore structures and higher graphitization degree; the silver salt solution and the carbon source solution are fully mixed in advance, so that the nano silver and the porous carbon spheres can be formed in the system in situ, the distribution is uniform, the combination is firm, the silver particles are not easy to fall off, and the effectiveness and the service life in the use process are ensured.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is a flow chart of the preparation system of the silver-loaded porous carbon microsphere of the present invention.
Detailed Description
The present invention will be further described with reference to the following examples, but the present invention is not limited to the following examples, and any products similar or identical to the present invention, which are taught by the present invention, are within the scope of protection.
The utility model provides a preparation system of silver-loaded porous carbon microspheres, the preparation process of which is shown in figure 1 and comprises a reaction vessel, an argon gas input machine, an ultrasonic sprayer, a conveying pipeline and a tubular furnace which are connected in sequence; the reaction vessel is used for preparing a mixed solution of a carbon source and a silver salt solution; the ultrasonic sprayer is used for atomizing the mixed solution; the argon input machine is used for inputting argon into the ultrasonic sprayer so that the argon carries atomized fog drops to enter the tubular furnace from the conveying pipeline; the tubular furnace is used for carrying out pyrolysis reaction on the atomized fog drops to prepare the silver-loaded porous carbon microspheres.
The preparation system of the utility model atomizes the carbon source (organic carbon and graphene oxide) and silver salt solution, and then inputs the carbon source and silver salt solution into the tube furnace to be pyrolyzed at high temperature to form carbon spheres, so that the carbon spheres have rich pore structures and higher graphitization degree; the silver salt solution and the carbon source solution are fully mixed in advance, so that the nano silver and the porous carbon spheres can be formed in the system in situ, the distribution is uniform, the combination is firm, the silver particles are not easy to fall off, and the effectiveness and the service life in the use process are ensured.
Further, the tube furnace comprises a quartz tube communicated with the conveying pipeline.
The device further comprises a washing device and a vacuum drying device, wherein the washing device is used for washing the powder obtained by the reaction in the tube furnace, and the vacuum drying device is used for carrying out vacuum drying on the washed powder.
Further, the vacuum drying equipment is a vacuum drying oven.
Further, the reaction vessel comprises a first reaction vessel, a second reaction vessel, a third reaction vessel and an ultrasonic machine; the first, second and third reaction vessels can be reactors, beakers or triangular conical flasks and the like. The first reaction vessel is used for dissolving and preparing silver salt solution; the second reaction vessel is used for dissolving and preparing a carbon source solution; the third reaction vessel is used for mixing the silver salt solution and the carbon source solution; the ultrasonic machine is used for respectively carrying out ultrasonic treatment on the carbon source solution and the mixed solution.
Utilize the utility model discloses a concrete embodiment of preparation system can be:
to the first reaction vessel was added 100mL of water, 0.5 g of AgNO3Dissolving in water in the first reaction container, and adding NH dropwise3·H2Solution of O to clear (Ag/NH)3·H2O = 1: 2). 0.5 g of sucrose, 0.25g K were added to the second reaction vessel with stirring2 CO 3 And 0.05g of graphene oxide was dissolved in 100ml of distilled water, and subjected to ultrasonic treatment for 30 minutes by an ultrasonic machine. Then, the two solutions are added into a third reaction container, stirred and ultrasonically treated for 30min, then atomized by an ultrasonic atomizer with the frequency of 1.7MHz to generate a large amount of fog drops, argon is input to be used as a carrier gas to carry the fog drops into a quartz tube of a tube furnace to carry out thermal decomposition reaction for 1 hour at the temperature of 800 ℃, then the prepared powder is collected and washed by distilled water for a plurality of times, and the collected sample is placed in a vacuum drying box with the temperature of 80 ℃ to be dried for 12 hours to obtain a silver-loaded porous carbon sample.
The silver-loaded porous carbon microspheres prepared by the embodiment have the advantages that the nano silver is uniformly distributed, and the nano silver is firmly combined with the carbon matrix, so that silver particles are not easy to fall off, and the effectiveness and the service life in the using process are ensured. And the method has simple equipment, low cost and environmental protection.
The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.
Claims (5)
1. A preparation system of silver-loaded porous carbon microspheres is characterized by comprising a reaction container, and an argon gas input machine, an ultrasonic sprayer, a conveying pipeline and a tubular furnace which are sequentially connected;
the reaction vessel is used for preparing a mixed solution of a carbon source and a silver salt solution;
the ultrasonic sprayer is used for atomizing the mixed solution;
the argon input machine is used for inputting argon into the ultrasonic sprayer so that the argon carries atomized fog drops to enter the tubular furnace from the conveying pipeline;
the tubular furnace is used for carrying out pyrolysis reaction on the atomized fog drops to prepare the silver-loaded porous carbon microspheres.
2. The system for preparing silver-loaded porous carbon microspheres according to claim 1, wherein the tube furnace comprises a quartz tube in communication with a conveying pipeline.
3. The system for preparing the silver-loaded porous carbon microspheres according to claim 1, further comprising a washing device for washing the powder obtained by the reaction in the tube furnace and a vacuum drying device for vacuum drying the washed powder.
4. The system for preparing silver-loaded porous carbon microspheres according to claim 3, wherein the vacuum drying device is a vacuum drying oven.
5. The system for preparing silver-loaded porous carbon microspheres according to any one of claims 1 to 4, wherein the reaction vessel comprises a first reaction vessel, a second reaction vessel, a third reaction vessel and an ultrasonic machine;
the first reaction vessel is used for dissolving and preparing silver salt solution;
the second reaction vessel is used for dissolving and preparing a carbon source solution;
the third reaction vessel is used for mixing a silver salt solution and a carbon source solution;
the ultrasonic machine is used for respectively carrying out ultrasonic treatment on the carbon source solution and the mixed solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022717394.6U CN213707755U (en) | 2020-11-23 | 2020-11-23 | Preparation system of silver-loaded porous carbon microspheres |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022717394.6U CN213707755U (en) | 2020-11-23 | 2020-11-23 | Preparation system of silver-loaded porous carbon microspheres |
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| Publication Number | Publication Date |
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| CN213707755U true CN213707755U (en) | 2021-07-16 |
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| CN202022717394.6U Expired - Fee Related CN213707755U (en) | 2020-11-23 | 2020-11-23 | Preparation system of silver-loaded porous carbon microspheres |
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- 2020-11-23 CN CN202022717394.6U patent/CN213707755U/en not_active Expired - Fee Related
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Granted publication date: 20210716 Termination date: 20211123 |