CN110215854A - A kind of controllable generation method of micron body bubble based on laser phasmon effect - Google Patents
A kind of controllable generation method of micron body bubble based on laser phasmon effect Download PDFInfo
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- CN110215854A CN110215854A CN201910553521.2A CN201910553521A CN110215854A CN 110215854 A CN110215854 A CN 110215854A CN 201910553521 A CN201910553521 A CN 201910553521A CN 110215854 A CN110215854 A CN 110215854A
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- body bubble
- micron body
- bubble
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/05—Mixers using radiation, e.g. magnetic fields or microwaves to mix the material
- B01F33/054—Mixers using radiation, e.g. magnetic fields or microwaves to mix the material the energy being in the form of a laser to modify the characteristics or conditions of the products, e.g. for heating
Abstract
The present invention provides a kind of controllable generation method of micron body bubble based on continuous laser phasmon effect.It is characterized in that, the gold nanoparticle array substrate based on continuous laser irradiation hydroaropic substance coating covering, generates micron body bubble in substrate surface.By adjusting laser opening time ton, laser shutdown time toff, laser intensity P, control micron body bubble size D, micron body bubble spacing d behind un-mixing bases bottom.This method has many advantages, such as that generation bubble size consistency is good, and bubble size, spacing is adjusted.
Description
Technical field
The controllable generation method of micron body bubble based on laser phasmon effect that the present invention relates to a kind of, more specifically,
The method that the present invention relates to a kind of to control micron body bubble formation by adjusting laser parameter.
Background technique
As micron bubble is in the wide of the fields such as biomedical diagnostic and treatment of cancer, nanometer manufacture and mineral floating
General application is having been a concern it for centuries.In such applications, control micron body bubble generation be always
It is desired.For example, realizing in mineral screening process that appropriately sized bubble can be separated more effectively in industrial separation
Metal component.The sufficiently application of exploitation micron body bubble realizes that the control of micron body bubble size distribution is of great significance.
Aiming at the problem that micron body bubble formation realizes controllability, the mode for generating bubble has very much, most important mode
It can produce bubble, but bubble distribution more divides either by mechanical oscillation or ultrasonic wave mode for stirring action
It dissipates；Or it needs to design complicated bubble preparation facilities, and can not easily control the generation of bubble.
Summary of the invention
It is a kind of based on laser phasmon effect it is an object of the invention in view of the above shortcomings of the prior art, propose
Micron the controllable generation method of body bubble, thus realize it is controllable to the growth course of micron body bubble, bubble preparation system structure compared with
It is simple.
To achieve the above object, the present invention includes: that a kind of micron body bubble based on laser phasmon effect is controllably given birth to
At method, it is characterised in that the gold nanoparticle array substrate based on continuous laser irradiation hydroaropic substance coating covering, in base
Bottom surface generates micron body bubble.By adjusting laser period tcycleMiddle laser opens duration ton, close the duration
toff, laser intensity P, control micron body bubble size D, micron body bubble spacing d behind un-mixing bases bottom.
The phasmon effect is that there are plasmas under continuous laser irradiation for the noble metal nano particles such as gold, silver, platinum
Bulk effect can convert light energy into rapidly thermal energy, in liquid environment, the thermal energy that converts can rapidly water vapor,
Generate micron body bubble.
The micron body bubble size area of the generation is between 1 μm to 999 μm.
The micron body bubble size D of the generation is micron body bubble diameter, the micron body bubble size D behind un-mixing bases bottom
Holding is basically unchanged.
The dimension D variation of the micron body bubble of the generation is that size of micron body bubble when bases generate becomes
Change.
The laser opens duration ton, it is characterised in that laser opens what irradiation substrate surface was irradiated to laser shutdown
Time interval.
The laser shutdown duration toff, it is characterised in that laser shutdown irradiation substrate surface is again turned on to laser
The time interval of irradiation.
The laser period tcycleDuration t is opened for laseronWith laser shutdown duration toffThe sum of.
The micron body bubble size D of the generation changes, which is characterized in that opens duration t in laseronIdentical item
Under part, laser intensity P constantly becomes larger, and the dimension D of micron body bubble constantly becomes larger.
The micron body bubble size D of the generation changes, which is characterized in that based on identical laser intensity P, identical swashs
Light closes duration toff, duration t is opened with laseronConstantly become larger, the dimension D of micron body bubble constantly becomes larger.
Micron body bubble spacing d changes behind the un-mixing bases bottom, which is characterized in that in laser unlatching, closes the duration
Cyclically-varying under, form continuous micron body bubble；When opening lasting based on identical laser intensity P, identical laser
Between ton, with laser shutdown duration toffConstantly become larger, micron body bubble spacing d constantly becomes larger behind un-mixing bases bottom.
The effect of invention
The present application, the present invention is compared with previous method, and by adjusting laser intensity P, laser opens the duration
tonAnd laser shutdown duration toffParameter is realized to micron body bubble spacing behind micron body bubble size D and un-mixing bases bottom
The control of d, bubble formation device are simple to operation.
Detailed description of the invention
Fig. 1 is that micron body air bubble apparatus schematic diagram is induced in the specific embodiment of the invention.
Fig. 2 is to open duration t in same laser in the specific embodiment of the inventionon, different laser shutdown duration
toffMicron body bubble formation contrast schematic diagram under parameter.
Fig. 3 is to close duration t in same laser in the specific embodiment of the inventionoff, the different laser unlatching duration
tonMicron body bubble formation contrast schematic diagram under parameter.
Fig. 4 is the micron body bubble formation comparison signal in the specific embodiment of the invention under different laser intensity P parameters
Figure.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, referring to the drawings to the present invention make into
One step detailed description.
The experiment that the present inventor has carried out, provides data result in the following embodiments.
Embodiment 1
The present invention is based on the gold nanoparticle array substrates of continuous laser irradiation hydroaropic substance coating covering, in substrate table
Face generates micron body bubble, by setting the relevant parameter of laser, realizes a kind of controllable generation method of control micron body bubble.Figure
1 is induces micron body air bubble apparatus schematic diagram, includes silicon dioxide substrates 1, hydroaropic substance coating 2, gold nanoparticle battle array
Column 3, micron body bubble 4, laser beam emitting device 5.
Embodiment 2
According to Fig. 2, sets laser and open duration equal tonFor 0.1s, laser shutdown duration toff0.1s is followed successively by,
0.2s, 0.3s are corresponding in turn to Fig. 2 (1), (2), (3), cycle time tcycleSuccessively become larger.
It has been found that identical laser intensity P, identical laser opens duration ton, laser shutdown duration toffNo
Disconnected to become larger, the micron body bubble size D of generation is basically unchanged, and micron body bubble spacing d constantly becomes larger behind un-mixing bases bottom.
Experiment shows micron body bubble spacing d variation and laser shutdown duration t behind un-mixing bases bottomoffTo increase in the same direction
The micron body bubble comparison growth tendency of relationship, Fig. 2 illustrates this point.
Embodiment 3
According to Fig. 3, sets laser and open duration tonIt is followed successively by 0.1s, 0.3s, 0.5s, laser shutdown duration
toffIt is 0.1s, is corresponding in turn to Fig. 3 (1), (2), (3), cycle time tcycleSuccessively become larger.
It has been found that laser opens duration tonConstantly become larger, the micron body bubble size D of generation constantly becomes larger, separation
Micron body bubble spacing d is remained unchanged after substrate.
Experiment shows that the micron body bubble size D variation of generation opens duration t with laseronFor relation with increase in the same direction,
The micron body bubble comparison growth tendency of Fig. 3 illustrates this point.
Embodiment 4
According to Fig. 4, sets laser and open duration tonFor 0.1s, laser shutdown duration toffFor 0.2s, laser is strong
Spending P is respectively 80mW, 84mW, is corresponding in turn to Fig. 4 (1), (2), cycle time tcycleTime is fixed.
It has been found that the micron body bubble size D generated increases with the increase of laser intensity P.
Experiment shows that the micron body bubble size D variation of generation and laser intensity P are relation with increase in the same direction, micro- with Fig. 4
Rice body bubble formation comparison diagram matches.
Claims (6)
1. a kind of controllable generation method of micron body bubble based on laser phasmon effect, the method includes the following contents:
Based on the gold nanoparticle array substrate of continuous laser irradiation hydroaropic substance coating covering, micron is generated in substrate surface
Body bubble.Duration t is opened by adjusting laseron, laser shutdown duration toff, laser intensity P, control micron body gas
Steep dimension D, micron body bubble spacing d behind un-mixing bases bottom.
2. a kind of controllable generation method of micron body bubble based on laser phasmon effect according to claim 1,
It is characterized in that, laser irradiation mode is Continuous irradiation within cycle time, and wave-length coverage is 390~780nm.
3. a kind of controllable generation method of micron body bubble based on laser phasmon effect according to claim 1,
It is characterized in that, coating has water-wet behavior.
4. a kind of controllable generation method of micron body bubble based on laser phasmon effect according to claim 1,
It is characterized in that, by noble metal nano particles such as gold, silver, platinum, there are plasma effects under laser irradiation, can be rapid
Convert light energy into thermal energy, in liquid environment, the thermal energy that converts can by rapidly water vapor in a manner of, generate micron body
Bubble.
5. a kind of controllable generation method of micron body bubble based on laser phasmon effect according to claim 1,
It is characterized in that, D is micron body bubble diameter, and the bubble size D holding behind un-mixing bases bottom of micron body bubble is basically unchanged.
6. a kind of controllable generation method of micron body bubble based on laser phasmon effect according to claim 1,
It is characterized in that, opens duration t by setting different laseron, laser shutdown duration toff, laser intensity P, control
Micron body bubble size D, micron body bubble spacing d behind un-mixing bases bottom.
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| CN201910553521.2A CN110215854B (en) | 2019-06-25 | 2019-06-25 | Micron-sized body bubble controllable generation method based on laser plasmon effect |
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| CN201910553521.2A CN110215854B (en) | 2019-06-25 | 2019-06-25 | Micron-sized body bubble controllable generation method based on laser plasmon effect |
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| CN110215854B CN110215854B (en) | 2020-06-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114654116A (en) * | 2022-04-22 | 2022-06-24 | 武汉大学 | Fixed-point machining device and method for nanometer holes of optical drive nanoparticles |
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| CN107084752A (en) * | 2017-04-20 | 2017-08-22 | 电子科技大学 | Optical fiber microbubble concentration sensor and its method for sensing based on nano-gold film |
| CN107805488A (en) * | 2017-10-24 | 2018-03-16 | 上海交通大学 | A kind of bubble controllable driving device and method based on photo-thermal effect |
| KR101843656B1 (en) * | 2016-12-07 | 2018-03-29 | 한국에너지기술연구원 | One-pot Method of Manufacturing Core-Shell Catalyst and Apparatus for Manufacturing the Same |
| CN109665585A (en) * | 2019-01-29 | 2019-04-23 | 上海交通大学 | A kind of thermal driving horizontal movement device based on photo-thermal effect |
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2019
- 2019-06-25 CN CN201910553521.2A patent/CN110215854B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101843656B1 (en) * | 2016-12-07 | 2018-03-29 | 한국에너지기술연구원 | One-pot Method of Manufacturing Core-Shell Catalyst and Apparatus for Manufacturing the Same |
| CN107084752A (en) * | 2017-04-20 | 2017-08-22 | 电子科技大学 | Optical fiber microbubble concentration sensor and its method for sensing based on nano-gold film |
| CN107805488A (en) * | 2017-10-24 | 2018-03-16 | 上海交通大学 | A kind of bubble controllable driving device and method based on photo-thermal effect |
| CN109665585A (en) * | 2019-01-29 | 2019-04-23 | 上海交通大学 | A kind of thermal driving horizontal movement device based on photo-thermal effect |
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| WANG YULIANG ET AL.: ""Giant and explosive plasmonic bubbles by delayed nucleation"", 《PNAS》 * |
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| CN114654116A (en) * | 2022-04-22 | 2022-06-24 | 武汉大学 | Fixed-point machining device and method for nanometer holes of optical drive nanoparticles |
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