CN117619254A - Nanoparticle generation device and generation method - Google Patents
Nanoparticle generation device and generation method Download PDFInfo
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- CN117619254A CN117619254A CN202410104213.2A CN202410104213A CN117619254A CN 117619254 A CN117619254 A CN 117619254A CN 202410104213 A CN202410104213 A CN 202410104213A CN 117619254 A CN117619254 A CN 117619254A
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- 239000002105 nanoparticle Substances 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 126
- 239000002243 precursor Substances 0.000 claims abstract description 79
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims description 22
- 239000004094 surface-active agent Substances 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 abstract description 13
- 238000001035 drying Methods 0.000 abstract description 3
- 239000000443 aerosol Substances 0.000 abstract description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 10
- 238000000889 atomisation Methods 0.000 description 6
- 239000011780 sodium chloride Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- -1 sulfate salt Chemical class 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000002563 ionic surfactant Substances 0.000 description 1
- 238000009688 liquid atomisation Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000001397 quillaja saponaria molina bark Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229930182490 saponin Natural products 0.000 description 1
- 150000007949 saponins Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
Abstract
The application provides a nanoparticle generation device and a nanoparticle generation method, and relates to the technical field of aerosol science. The nanoparticle generating device comprises a precursor liquid tank, wherein the precursor liquid tank is used for containing precursor liquid, and the precursor liquid is a raw material for preparing nanoparticles; peristaltic pump for delivering the precursor liquid; a blower for providing an air flow to generate bubbles; the connecting pipe is internally provided with a film forming hole and a needle plate in sequence, the film forming hole is used for collecting the precursor liquid to form a liquid film on the surface of the precursor liquid, and the needle plate is used for puncturing bubbles to form submicron-sized liquid drops; a dryer for drying the droplets to form solid nanoparticles; the precursor liquid in the precursor liquid tank is conveyed to the film forming hole through the peristaltic pump, the liquid film is blown into bubbles under the action of wind force of the blower, then the bubbles are pricked by the needle plate to form liquid drops, and finally the liquid drops form nano particles under the action of the dryer.
Description
Technical Field
The present disclosure relates to the field of aerosol science and technology, and in particular, to a nanoparticle generating device and a nanoparticle generating method.
Background
Liquid atomization is the dominant technique for producing nano-sized particles. The basic process of atomization is to convert liquid into droplets by ultrasonic, electrospray, mechanical vibration, air jet or other methods, the droplets are dried to form solid particles, the size distribution of the solid particles is highly dependent on the size distribution of the initial droplets, and the smaller the particles, the more obvious the quality or volume related performance advantages are, so that the generation of smaller droplets in the atomization process is the key to solve the existing problems.
The Sauter mean diameter of droplets produced by spray methods based on ultrasonic, liquid compression and two-phase nozzle principles is in the range of 10-300 microns, failing to meet the demands of the production process, some surface acoustic wave atomizers can produce smaller droplets with mean diameters in the range of 0.3-0.7 microns, but they suffer from the disadvantage of being difficult to handle and often requiring ultra-high acoustic frequencies.
Effervescent atomization is a method based on bubble collapse, in which a small amount of gas is introduced directly into the liquid to create bubbles which collapse and form small droplets as they leave the atomizer, and currently, the bubbles created by effervescent atomization can only reach the millimeter level, the minimum average diameter of the resulting droplets is about 5 microns, and further reduction of the droplet size is difficult to achieve.
Disclosure of Invention
One technical problem to be solved by the present disclosure is: the average diameter of liquid drops generated by the existing effervescent atomization is too large, and the operation of further reducing the diameter of the liquid drops is difficult.
To solve the above technical problems, an embodiment of the present disclosure provides a nanoparticle generating apparatus, including:
the precursor liquid tank is used for containing precursor liquid which is a raw material for preparing nano particles;
peristaltic pump for delivering the precursor liquid;
a blower for providing an air flow to generate bubbles;
the connecting pipe is internally provided with a film forming hole and a needle plate in sequence, the film forming hole is used for collecting the precursor liquid to form a liquid film on the surface of the precursor liquid, and the needle plate is used for puncturing bubbles to form submicron-sized liquid drops;
and a dryer positioned at the end of the connection tube to dry the droplets to form nanoparticles.
In some embodiments, the nanoparticle generating apparatus further comprises a collecting tank, wherein one end of the collecting tank is connected to the film forming hole through the connecting pipe to collect the excess precursor solution, and the other end of the collecting tank is connected to the peristaltic pump to recover the unused precursor solution.
In some embodiments, the nanoparticle generating device described above, wherein the film forming hole is annular and has a diameter of 0.5-10cm, the periphery of the film forming hole is provided with a groove for carrying the precursor solution, and the inner periphery of the film forming hole is provided with a protrusion for assisting the precursor solution to form a film.
In some embodiments, the nanoparticle generating device is further provided with a needle plate movably disposed in the connection tube, the distance between the needle plate and the film forming hole is 0-50cm, the number of needle points on the needle plate is at least one, and the diameter of the needle points is 0.1-1mm.
In some embodiments, a nanoparticle generating device as described above, wherein the feed end of the blower is provided with a filter to remove particulate matter from the air.
In some embodiments, a nanoparticle generating device as described above, wherein the bubbles have a wall thickness of 50-1000nm.
In some embodiments, a nanoparticle generating device as described above, wherein the precursor liquid is one of a solution of a soluble substance or a suspension of an insoluble substance.
In some embodiments, a nanoparticle generating device as described above, wherein the precursor solution includes a surfactant to reduce a surface tension of the precursor solution, and a concentration of the surfactant relative to the precursor solution is 0% -50%.
A second aspect of the present application provides a nanoparticle generation method comprising the steps of:
s1, a peristaltic pump conveys a precursor liquid to a film forming hole in a connecting pipe to form a liquid film;
s2, blowing a liquid film by a blower to form bubbles in the connecting pipe;
s3, puncturing the air bubbles by a needle plate in the connecting pipe to form liquid drops;
s4, the liquid drops flow through an external dryer to be dried to form nano particles.
Through above-mentioned technical scheme, the precursor liquid in the precursor liquid groove is carried to film forming hole department and form the liquid film through the peristaltic pump, blow into the bubble with the liquid film under the wind-force effect of air-blower, the bubble is stabbed by the faller and is formed the liquid droplet afterwards, the liquid droplet forms the nanoparticle under the effect of desicator at last, the liquid droplet diameter that this kind of mode obtained is littleer, and then the nanoparticle average diameter that obtains is also little, and easy operation, more are covered to the material kind of precursor liquid simultaneously, be favorable to the generation of the solid particle of different grade type material.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
FIG. 1 is a schematic view of the overall structure of a nanoparticle generating device disclosed in an embodiment of the present disclosure;
FIG. 2 is a schematic diagram showing a specific structure of a film forming hole of a nanoparticle generating device according to an embodiment of the present disclosure;
FIG. 3 is a graph of distance from a needle plate to a film forming hole of a nanoparticle generating device as a function of droplet size, disclosed in an embodiment of the present disclosure;
FIG. 4 is a graph of precursor liquid concentration versus particle size for a nanoparticle generation device disclosed in an embodiment of the present disclosure;
FIG. 5 is a graph of blower air volume versus solid particle concentration for a nanoparticle generating device disclosed in an embodiment of the present disclosure;
FIG. 6 is a graph of film formation pore number versus solid particle concentration for a nanoparticle generation apparatus disclosed in an embodiment of the present disclosure;
fig. 7 is an observation view of bubble breakage state at different needle plate-to-film forming hole distances of a nanoparticle generating device according to an embodiment of the present disclosure;
fig. 8 is a schematic diagram of a nanoparticle generating device with liquid film thickness formed by different concentrations of solutes (salts) in the precursor liquid according to an embodiment of the present disclosure.
Reference numerals illustrate:
1. a precursor liquid tank; 2. a peristaltic pump; 3. a blower; 4. a connecting pipe; 5. film forming holes; 6. a needle plate; 7. a dryer; 8. a collection tank; 9. a groove; 10. a protrusion; 11. and (3) a filter.
Detailed Description
Embodiments of the present disclosure are described in further detail below with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the disclosure and not to limit the scope of the disclosure, which may be embodied in many different forms and not limited to the specific embodiments disclosed herein, but rather to include all technical solutions falling within the scope of the claims.
The present disclosure provides these embodiments in order to make the present disclosure thorough and complete, and fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only and not limiting unless otherwise specifically stated.
In the description of the present disclosure, unless otherwise indicated, the meaning of "plurality" is greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like indicate an orientation or positional relationship merely for convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present disclosure. When the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly.
Furthermore, the use of the terms first, second, and the like in this disclosure do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The "vertical" is not strictly vertical but is within the allowable error range. "parallel" is not strictly parallel but is within the tolerance of the error. The word "comprising" or "comprises" and the like means that elements preceding the word encompass the elements recited after the word, and not exclude the possibility of also encompassing other elements.
It should also be noted that, in the description of the present disclosure, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the present disclosure may be understood as appropriate by those of ordinary skill in the art. When a particular device is described as being located between a first device and a second device, there may or may not be an intervening device between the particular device and either the first device or the second device.
All terms used in the present disclosure have the same meaning as understood by one of ordinary skill in the art to which the present disclosure pertains, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification.
Example 1
Referring to fig. 1 and 2, the present embodiment discloses a nanoparticle generating apparatus, which includes a precursor liquid tank 1, wherein the precursor liquid tank 1 is used for containing a precursor liquid, and the precursor liquid is a raw material for preparing nanoparticles; peristaltic pump 2, peristaltic pump 2 is used for conveying the precursor liquid; a blower 3, the blower 3 for providing an air flow to generate bubbles; the connecting pipe 4, the inside of the connecting pipe 4 is sequentially provided with a film forming hole 5 and a needle plate 6, the film forming hole 5 is used for collecting the precursor liquid to form a liquid film on the surface of the precursor liquid, and the needle plate 6 is used for puncturing bubbles to form submicron-sized liquid drops; a dryer 7, the dryer 7 being located at the end of the connection tube 4 to dry the droplets to form nanoparticles.
Specifically, in order to solve the problem that the average value of the liquid generated by the existing effervescent atomization is too large, and the operation of further reducing the diameter of liquid drops is difficult, the nano particle generating device provided by the embodiment conveys the precursor liquid in the precursor liquid tank 1 to the surface of the film forming hole 5 to form a liquid film through the peristaltic pump 2, the liquid film can be blown into bubbles under the action of the blower 3, then the bubbles become liquid drops under the action of the needle plate 6, and finally the liquid drops form nano particles under the action of the dryer 7, so that the diameter of the nano particles is 20-40 nanometers, the production process is simple and convenient, and the processing efficiency is greatly improved.
The nanoparticle generating device provided in this embodiment is mainly applied to processing of nanoparticles, and can collect raw materials of different types of substances. The precursor liquid tank 1 is a hard container and is used for precursor liquid, the precursor liquid is a raw material for preparing nano materials, the precursor liquid is one of a solution of soluble substances or a suspension of insoluble substances, and meanwhile, no substance precipitation exists in the precursor liquid, namely, any substance which can be prepared into the solution and the suspension can be used as the precursor liquid; the precursor liquid comprises a surfactant to reduce the surface tension of the precursor liquid, wherein the surfactant is one of an ionic surfactant, a nonionic surfactant, an amphoteric surfactant, a compound surfactant and a natural surfactant, and the concentration of the surfactant relative to the precursor liquid is 0-50%, so that the concentration range can realize the function of the surfactant and can not influence the formation and the cracking of bubbles, thereby influencing the preparation of solid particles.
Wherein the peristaltic pump 2 is used for delivering the precursor liquid, wherein the peristaltic pump 2 is a conventional technical means for those skilled in the art, and is not described in detail herein; the air blower 3 is used for providing air flow to generate bubbles, wherein a filter 11 is arranged at the feeding end of the air blower 3 to absorb particles in air, ensure the purity of the air entering the connecting pipe 4, and further improve the purity of a liquid film so as to ensure the collection of pure materials.
The connecting pipe 4 is a hard sealed pipe body, a film forming hole 5 and a needle plate 6 are sequentially arranged in the connecting pipe 4, the film forming hole 5 is used for collecting precursor liquid to form a liquid film on the surface of the connecting pipe, the film forming hole 5 is in a circular ring shape and has a diameter of 0.5-10cm, a groove 9 is formed in the periphery of the film forming hole 5 to bear the precursor liquid, a protrusion 10 is formed in the inner periphery of the film forming hole 5 to assist the precursor liquid in film forming, and it is understood that the precursor liquid can be conveyed to the surface of the film forming hole 5 through the conveying of a peristaltic pump 2 to form the liquid film, then bubbles are formed under the action of a blower 3, the bubbles are formed singly and gradually, and the wall thickness of the bubbles is 50-1000nm; the needle plate 6 is used for puncturing bubbles to form submicron liquid drops, the needle plate 6 is movably arranged in the connecting pipe 4, the distance between the needle plate 6 and the film forming hole 5 is 0-50cm, namely when the distance between the needle plate 6 and the film forming hole 5 is 0, the needle plate 6 directly acts on a liquid film to form liquid drops, at least one needle point on the needle plate 6 can be used for but not limited to one needle point to ensure the breakage of the bubbles, the diameter of the needle point is 0.1-1mm, and it is understood that the bubbles can touch the needle point on the needle plate 6 to be converted into submicron liquid drops when being moved in the connecting pipe 4 under the action of wind force of the blower 3, and the submicron liquid drops are suspended in the connecting pipe 4 and finally conveyed to the dryer 7 for drying through wind force.
Where the dryer 7 is located at the end of the connecting tube 4 to dry the droplets to form nanoparticles, the dryer 7 may be, but is not limited to, a convection dryer, a conduction dryer, a radiant dryer, a dielectric dryer, a desiccant diffusion adsorption dryer.
The term "and/or" is herein merely one kind of association relation describing the associated object, identifying three kinds of relations that may exist, e.g. a and/or B, specifically understood as: the composition may contain both a and B, and may contain a alone or B alone, and any of the above three cases may be provided.
Example two
The present embodiment provides a nanoparticle generation method, which includes the steps of:
s1, a peristaltic pump conveys a precursor liquid to a film forming hole in a connecting pipe to form a liquid film;
wherein the precursor liquid is prepared by adding 5% of surfactant (natural saponin), stirring uniformly, and continuously adding 0.5% of NaCl powder;
s2, blowing a liquid film by a blower to form bubbles in the connecting pipe;
s3, the bubbles are punctured by a needle plate in the conveying pipe to form liquid drops;
the method comprises the steps of forming a film-forming hole, wherein under different needle plate-film-forming hole distances, the particle size distribution of liquid drops formed by atomizing a precursor liquid is different, namely, the distance from the needle plate to the film-forming hole is different, so that bubbles are broken in different forming stages, namely, the wall thickness of the bubbles is different when the bubbles are broken, the particle size and the concentration of the formed liquid drops/particles can be changed by regulating the distance from the needle plate to the film-forming hole, and when the distance is 1.5cm, 2.5cm and 3.5cm, the median positions of the generated liquid drops are 0.6 mu m, 0.5 mu m and 0.25 mu m respectively; as shown in fig. 3 and 7;
s4, the liquid drops flow through an external dryer to be dried to form nano particles.
Example III
The present embodiment provides a nanoparticle generation method, which includes the steps of:
s1, a peristaltic pump conveys a precursor liquid to a film forming hole in a connecting pipe to form a liquid film;
the precursor solution is prepared by uniformly stirring 4% of surfactant (sulfate salt) in percentage by mass, dividing into three parts, respectively adding 0.5%, 1% and 2% of NaCl powder in percentage by mass to prepare the precursor solution, detecting the thickness of a liquid film formed by the precursor solutions with different concentrations of NaCl between 30 and 1000nm by an external detection device, wherein the thickness of the liquid film determines the particle size distribution of liquid drops formed when bubbles are broken and solid particles generated after drying; as shown in fig. 4 and 8;
s2, blowing a liquid film by a blower to form bubbles in the connecting pipe;
s3, puncturing the air bubbles by a needle plate in the connecting pipe to form liquid drops;
wherein, the distance between the needle plate and the film forming hole is set to be 3.5cm;
s4, the liquid drops flow through an external dryer to be dried to form nano particles;
wherein, the median diameter of solid particles formed by precursor solutions with NaCl concentration of 0.5%, 1% and 2% is about 30nm, the concentrations of the three precursor solutions correspond to each other, and the concentrations of the solid particles are 50000 pieces/cm respectively 3 100000/cm 3 170000/cm 3 As shown in fig. 4.
Example IV
The present embodiment provides a nanoparticle generation method, which includes the steps of:
s1, a peristaltic pump conveys a precursor liquid to a film forming hole in a connecting pipe to form a liquid film;
wherein the precursor liquid is prepared by adding 4% of surfactant (sulfate salt) by mass, stirring uniformly, and continuously adding 0.5% of NaCl powder by mass; meanwhile, the number of the film forming holes is 2-10, the more the number of the film forming holes is, the larger the concentration of particles is, and when the number of the film forming holes is increased to 10, the number of the solid particles is 800000 pieces/cm 3 As shown in fig. 6;
s2, blowing a liquid film by a blower to form bubbles in the connecting pipe;
wherein the clean air flow provided by the air blower is 2-7L/min, the concentration of the solid particles is increased and then decreased along with the increase of the air volume of the air blower, and the concentration of the solid particles is maximum when the flow is 7L/min and is 90000 pieces/cm 3 As shown in fig. 5;
s3, puncturing the air bubbles by a needle plate in the connecting pipe to form liquid drops;
wherein, the distance between the needle plate and the film forming hole is set to be 3.5cm;
s4, the liquid drops flow through an external dryer to be dried to form nano particles.
Thus, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the disclosure. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict.
Claims (9)
1. A nanoparticle generation device, comprising:
the precursor liquid tank (1), the precursor liquid tank (1) is used for containing precursor liquid, and the precursor liquid is a raw material for preparing nano particles;
a peristaltic pump (2), the peristaltic pump (2) being used for delivering the precursor liquid;
-a blower (3), the blower (3) being adapted to provide a flow of air to generate bubbles;
the device comprises a connecting pipe (4), wherein a film forming hole (5) and a needle plate (6) are sequentially formed in the connecting pipe (4), the film forming hole (5) is used for collecting the precursor liquid to form a liquid film on the surface of the precursor liquid, and the needle plate (6) is used for puncturing the bubbles to form submicron-sized liquid drops;
-a dryer (7), said dryer (7) being located at the end of said connecting tube (4) to dry said droplets to form nanoparticles.
2. A nanoparticle generating device as recited in claim 1, wherein,
the device also comprises a collecting tank (8), wherein one end of the collecting tank (8) penetrates through the connecting pipe (4) and is connected with the film forming hole (5) so as to collect redundant precursor liquid, and the other end of the collecting tank (8) is connected with the peristaltic pump (2) so as to recycle the unused precursor liquid.
3. A nanoparticle generating device as recited in claim 1, wherein,
the film forming hole (5) is annular and has a diameter of 0.5-10cm, a groove (9) is formed in the periphery of the film forming hole (5) to bear the precursor liquid, and a protrusion (10) is arranged in the inner periphery of the film forming hole (5) to assist the precursor liquid to form a film.
4. A nanoparticle generating device as recited in claim 1, wherein,
the needle plate (6) is movably arranged in the connecting pipe (4), the distance between the needle plate (6) and the film forming hole (5) is 0-50cm, the number of needle points on the needle plate (6) is at least one, and the diameter of the needle points is 0.1-1mm.
5. A nanoparticle generating device as recited in claim 1, wherein,
the feeding end of the blower (3) is provided with a filter (11) for removing particles in the air.
6. A nanoparticle generating device as recited in claim 1, wherein,
the diameter of the bubbles is in the centimeter level, and the wall thickness is 50-1000nm.
7. A nanoparticle generating device as recited in claim 1, wherein,
the precursor liquid is one of a solution of a soluble substance or a suspension of an insoluble substance.
8. A nanoparticle generating device as recited in claim 1, wherein,
the precursor solution comprises a surfactant to reduce the surface tension of the precursor solution, wherein the concentration of the surfactant relative to the precursor solution is 0% -50%.
9. A nanoparticle generation method, comprising the steps of:
s1, a peristaltic pump conveys a precursor liquid to a film forming hole in a connecting pipe to form a liquid film;
s2, blowing the liquid film by a blower to form bubbles in the connecting pipe;
s3, the bubbles are punctured by a needle plate in the connecting pipe to form liquid drops;
s4, the liquid drops flow through an external dryer to be dried to form nano particles.
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| CN202410104213.2A CN117619254A (en) | 2024-01-25 | 2024-01-25 | Nanoparticle generation device and generation method |
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| CN202410104213.2A CN117619254A (en) | 2024-01-25 | 2024-01-25 | Nanoparticle generation device and generation method |
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| CN107308788A (en) * | 2017-07-11 | 2017-11-03 | 钟会琴 | A kind of microbubble industrial waste gas processing system |
| CN112023737A (en) * | 2020-07-30 | 2020-12-04 | 江苏大学 | Coaxial needle electrohydrodynamic atomization method for preparing nanoparticle-loaded microbubbles |
| US20230028572A1 (en) * | 2019-11-22 | 2023-01-26 | The Trustees Of Princeton University | High-throughput monodisperse aerosols of micro-shell particles |
| US20230143042A1 (en) * | 2020-04-07 | 2023-05-11 | The Trustees Of Princeton University | System and method for aerosol particle production of submicron and nano structured materials |
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- 2024-01-25 CN CN202410104213.2A patent/CN117619254A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107308788A (en) * | 2017-07-11 | 2017-11-03 | 钟会琴 | A kind of microbubble industrial waste gas processing system |
| US20230028572A1 (en) * | 2019-11-22 | 2023-01-26 | The Trustees Of Princeton University | High-throughput monodisperse aerosols of micro-shell particles |
| US20230143042A1 (en) * | 2020-04-07 | 2023-05-11 | The Trustees Of Princeton University | System and method for aerosol particle production of submicron and nano structured materials |
| CN112023737A (en) * | 2020-07-30 | 2020-12-04 | 江苏大学 | Coaxial needle electrohydrodynamic atomization method for preparing nanoparticle-loaded microbubbles |
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