CN109867338A - A method of micron motor, which is driven, using magnetic carries out water purification - Google Patents
A method of micron motor, which is driven, using magnetic carries out water purification Download PDFInfo
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- CN109867338A CN109867338A CN201910161682.7A CN201910161682A CN109867338A CN 109867338 A CN109867338 A CN 109867338A CN 201910161682 A CN201910161682 A CN 201910161682A CN 109867338 A CN109867338 A CN 109867338A
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- Prior art keywords
- water
- magnetic sheet
- micron motor
- conveyor screw
- water pot
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/48—Devices for applying magnetic or electric fields
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Abstract
A method of micron motor, which is driven, using magnetic carries out water purification, it disperses magnetic drive micron motor in the water body for needing to purify, upper magnetic sheet is set above water pot, lower magnetic sheet, the permanent magnetism pair that upper magnetic sheet and lower magnetic sheet are formed are set below water pot, and permanent magnetism is rotated to around water pot axis, and then generate rotating excitation field, to drive a micron motor, water pot autokinetic movement in water body is enabled, conveyor screw head tip can be used for crushing large particle substance in broken advance at this time；Body surface silver nano-grain releases silver ion in the solution, can be used for inhibiting or killing water body bacterium and microorganism；The porous structure of its mesoporous silicon can be used for the finely ground particles in adsorbed water body；Surface positive electricity can be used for gas chromatography or the pollutant with negative point in adsorbed water body；Water purification finishes, and withdraws from magnetic sheet, can be gone out micron motor precipitation and separation in solution body using lower magnetic sheet body, this can obtain clean water from water pot upper end water outlet.
Description
Technical field
The invention belongs to micro-nano device preparation technical fields, and in particular to a kind of to drive the progress water purification of micron motor using magnetic
Method.
Background technique
Micron motor is a kind of artificial synthesized dynamic power machine with micron scale structures, and external energy can be converted by it
Mechanical work output obtains power, and then realizes the autokinetic movement in three-dimensional space.Compared to macro-mechanical motor, micron motor is most
Significantly it is characterized in that structure dimension is small, therefore it can realize transport of substances, information collection, energy transmission etc. in a limited space
Utility function.From driving energy source angular divisions, micron motor generally can be divided into physical field driving (magnetic field, light field, heat ladder
Degree, ultrasonic field etc.) and biochemical reaction driving (bubble driving, catalysis driving, soda acid gradient-driven etc.) two major classes.Wherein, magnetic field
Due to its vector property, parameter is controllable, the excellent characteristics such as non-contact and one of become most potential micron motor drive means.
In recent years, some researches show that the magnetic texure movements that rotating excitation field can be effectively with spiral shape.By adjusting rotating excitation field
The parameters such as frequency, direction of rotation, field strength, can movement velocity, direction etc. to helimagnet accurately controlled.These researchs
Further having pushed with screw type is to represent the development and application of the Magnetic driving micron motor of configuration.
Water is the mostly important component part of organism, and the important money of all life existence including humans
Source.Have become an important process in relationship human social development from clean water is extracted in nature.Waterworks is usual
Water source is handled by processes such as coagulation, reaction, precipitating, filtering, disinfections, could be then social industrial production and the mankind
Daily life offer is more clean to use water.For long-term separate industrial society is engaged in the personnel of field work, obtain clean
Water purification is even more the important process concerning life and health and safety.It is most convenient at present for crossing drainage on the spot using portable water purifying device
Field obtain clean water method.Based on this, if a kind of magnetic drive micron motor for having certain function component can be developed, utilize
It easily realizes water purification, not only can provide new strategy for the industrial clean water that generates, can also be net for Household water purifying filtering, field
The non-industrial production such as water provides effective scheme, has highly important application value.And class can be achieved in not yet discovery domestic at present
Like the micron motor of function.
Summary of the invention
The method that micron motor carries out water purification is driven using magnetic technical problem to be solved by the invention is to provide a kind of, it can be real
Now to water sterilization, decontamination, and then realize water body purification function.
The technical solution of the present invention is as follows: a kind of magnetic for water purification drives micron motor, including with cuspidated soft magnetism spiral shell
Revolve body；Conveyor screw outer cladding layer of silicon dioxide layer, and conveyor screw tip is exposed to outside silicon dioxide layer；Outside silicon dioxide layer
Inlay the silver nano-grain with bactericidal effect；Silicon dioxide layer is connected with far from the one end at conveyor screw tip has microchannel knot
Electropositive is presented by chemical modification in the mesoporous silicon of structure, mesoporous silicon face.
The channel diameter of mesoporous silicon face is 5 nanometers to 10 microns.
The magnetic for water purification drives the preparation method of micron motor, comprising the following steps:
Step 1 utilizes conveyor screw of the method preparation with tip of rotatable sputtering on inorganic substrate；
Step 2 coats layer of silicon dioxide layer on conveyor screw surface；
Step 3, the growth in situ silver nano-grain in silicon dioxide layer；
Step 4 grows one section of mesoporous silicon far from the one end at conveyor screw tip in silicon dioxide layer；
Step 5, mesoporous silicon surface graft cation group, are changed to electropositive for mesoporous silicon surface electrical behavior.
In step 1, the method for conveyor screw of the method preparation with tip of rotatable sputtering is utilized on inorganic substrate are as follows: first
A single layer magnetic bead is coated on inorganic substrate；Then with the fixed substrate of 80 degree ~ 87 degree firing angles, using soft magnetic materials as target, super
Carry out magnetron sputtering in vacuum environment, substrate is rotated around its surface normal direction in sputtering process, adjusts angular velocity of rotation, is adjusted
Conveyor screw screw pitch is controlled, is finished to its growth, takes out substrate, surface is wiped repeatedly with concentrated nitric acid, to corrode conveyor screw tip out.
In step 2, in the method for conveyor screw surface cladding layer of silicon dioxide layer are as follows: growth is had tip spiral volume array
Substrate immerse 10-100 milliliters of polycyclic aromatic hydrocarbons (PAH)s, Weak Ultrasonic 0.5-2 hours；Substrate is taken out, is cleaned with deionized water, and
After dip the substrate into 10 milliliters of polyvinylpyrrolidones vibrate 30 minutes after substrate is taken out, cleaned with deionized water, finally
It dips the substrate into 10-100 milliliters of ammonium hydroxide, and 50-500 microlitres of silester is added, take substrate after 2-10 hours ultrasonic
Out, spare with washes of absolute alcohol.
In step 3, the method for growth in situ silver nano-grain in silicon dioxide layer are as follows: silicon dioxide layer will have been coated
Spiral volume array immerse 5-20 milliliters of silver nitrate solutions in, be added 0.1 gram of trisodium citrate, 0.1 gram of polyvinylpyrrolidone and
At 40 DEG C after heating water bath 10-100 minutes, 10-100 milliliters of sodium borohydrides, in-situ reducing is added dropwise in 10-100 milliliters of polyethylene glycol
Silver nano-grain is grown, heating 10-100 minutes is continued thereafter with, substrate is taken out, is cleaned with dehydrated alcohol and deionized water, then use
Strength ultrasound 2-10 hours, enables all micro-structures fall off from substrate, disperses the micro-structure of preparation in deionized water, standby
With.
In step 4, disperse micro-structure in cetyl trimethylammonium bromide, ammonium hydroxide, water and silester mixed liquor,
40 DEG C of heating water bath, and stir 4 hours, mesoporous silicon can be grown and form micron motor, by adjusting cetyl trimethyl
Ammonium bromide, ammonium hydroxide, water and silester ratio control mesoporous silicon intermediary hole size.
Step 5 intermediary hole silicon face grafts cation group, and mesoporous silicon surface electrical behavior is changed to electropositive method are as follows: will
Micron motor is dispersed in 10-500 milliliters of aminopropyl trimethoxysilanes and 10-500 ml deionized water mixed solution, water-bath
40 DEG C, and rock 2-20 hours, Magnetic Isolation, dehydrated alcohol and deionized water are cleaned, and can get surface is electropositive micron
Motor.
That grafts in the step 5 uses the side of covalent chemical bond or Electrostatic Absorption for changing electrical cation group
Formula is connected with mesoporous silicon face.
It disperses magnetic drive micron motor in the water body for needing to purify, upper magnetic sheet is set above water pot, is set below water pot
Lower magnetic sheet is set, the permanent magnetism pair that upper magnetic sheet and lower magnetic sheet are formed, permanent magnetism is rotated to around water pot axis, and then generates rotating excitation field, from
And micron motor is driven, water pot autokinetic movement in water body is enabled, conveyor screw head tip can be used in broken advance being crushed at this time
Large particulate matter；Body surface silver nano-grain releases silver ion in the solution, can be used for inhibiting or killing water body bacterium and micro- life
Object；The porous structure of its mesoporous silicon can be used for the finely ground particles in adsorbed water body；Surface positive electricity can be used for more in adsorbed water body
Kind organic matter or the pollutant with negative point；Water purification finishes, and withdraws from magnetic sheet, can be by micron motor precipitation and separation using lower magnetic sheet body
Out in solution body, this can obtain clean water from water pot upper end water outlet.
Provided by the invention to have the beneficial effect that: this micron of motor can use the contactless manipulation of external magnetic field, can be to avoid
Contact manipulation and give the secondary pollution of water body bring；The conveyor screw head tip of micron motor can be used for crushing large particle in traveling
Substance；Releasable silver ion in micron motor traveling process has the function of killing bacterium and microorganism；Micron motor tool carries
Mesoporous silicon have porous structure, can be with the pollution particle in adsorbed water body；Micron motor surface is positive electrical property, and more in water body
Number pollutant negatively charged, can be adsorbed by it；Micron motor has magnetism, therefore, easily goes out solution by permanent magnet sedimentation separation
System.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is that the magnetic for water purification of the invention drives micron motor configuration schematic diagram；
Fig. 2 is that the magnetic for water purification of the invention drives micron motor preparation flow figure；
Fig. 3 is that magnetic of the invention drives micron motor clean water treatment application schematic diagram.
Specific embodiment
Embodiment:
As shown in Figure 1, a kind of magnetic for water purification drives micron motor, including with cuspidated soft magnetism conveyor screw 1；Conveyor screw 1
Outer cladding layer of silicon dioxide layer 2, and 1 tip of conveyor screw is exposed to outside silicon dioxide layer 2；Tool is inlayed outside silicon dioxide layer 2
There is the silver nano-grain 3 of bactericidal effect；Silicon dioxide layer 2 is connected with far from the one end at 1 tip of conveyor screw has microchannel structure
Mesoporous silicon 4,4 surface of mesoporous silicon by chemical modification present electropositive.The channel diameter of mesoporous silicon face is 5 nanometers to 10 micro-
Rice.
As shown in Fig. 2, a kind of magnetic for water purification of the invention drives the preparation method of micron motor, comprising the following steps:
Step 1 utilizes conveyor screw 1 of the method preparation with tip 9 of rotatable sputtering on inorganic substrate 5: first in glass substrate 5
The magnetic bead 6 that a single layer radius is 3 microns, spacing is 5 microns is first coated, using the fixed substrate 5(firing angle of 87 degree of firing angles as substrate normal
7 angles with horizontal plane), using soft magnetic materials as target, carry out magnetron sputtering in ultravacuum environment, target as sputter direction 8 is vertical
In horizontal plane, sputter rate is 0.3 nm/sec, in order to grow 1 structure of conveyor screw, and in sputtering process, substrate 5 with
Its centre normal 7 is that axis is rotated with 0.2 rev/min of angular speed, can regulate and control spiral by adjusting angular velocity of rotation at this time
1 screw pitch of body is finished to its growth, takes out substrate 5, surface is wiped repeatedly with concentrated nitric acid (concentrated nitric acid volume ratio 30%), to corrode out
Conveyor screw tip 9.
Step 2 coats layer of silicon dioxide layer 2, method are as follows: by the base of array in 1 surface of conveyor screw prepared by step 1
Piece 5 immerses 50 milliliters of polycyclic aromatic hydrocarbons (PAH)s (PAH, 30 mg/mls) and takes out substrate 5 after Weak Ultrasonic 1 hour, use deionization
Water cleans 2 times, and substrate 5 is then immersed 100 milliliters of polyvinylpyrrolidones (PVP, 40 mg/mls), vibrates 30 minutes, then
Substrate 5 is taken out, is cleaned 2 times with deionized water, then immerses substrate 5 in 50 milliliters of ammonium hydroxide (volume ratio 30%), be added 500
Microlitre silester (TEOS), ultrasound will coat 2 conveyor screw of silicon dioxide layer, 1 growth substrate 5 and taken out, use is anhydrous after 8 hours
Ethyl alcohol cleaning, it is spare.
Step 3, the growth in situ silver nano-grain 3 in silicon dioxide layer 2, method are as follows: silicon dioxide layer will have been coated
The leaching of 1 array of conveyor screw as be added in 10 milliliters of silver nitrate solutions (1 mol/L), and in its solution 0.4 gram of trisodium citrate,
0.2 gram of polyvinylpyrrolidone (PVP) and 30 milliliters of polyethylene glycol, subsequent 40 DEG C of heating water baths 20 minutes, then it is added dropwise 30 milliliters
(2 mol/L) sodium borohydride, in-situ reducing grow silver nano-grain 12, then continue heating 30 minutes, substrate 5 are taken out, with nothing
Water-ethanol and deionized water are cleaned, and finally with strength ultrasound 5 hours, enable all micro-structures fall off from substrate 5, by the micro- of preparation
Structure disperses are spare in deionized water.
Step 4 grows one section of mesoporous silicon 4, method are as follows: will be micro- far from the one end at 1 tip of conveyor screw in silicon dioxide layer
Structure disperses in cetyl trimethylammonium bromide (CTAB), ammonium hydroxide (volume ratio 20-40%), water and silester mixed liquor,
40 DEG C of heating water bath, stir 4 hours, can grow mesoporous silicon 4 formed micron motor, at this moment can by adjust CTAB,
The ratio of NH3H2O, H2O and TEOS, to control duct size in mesoporous silicon 4, ratio is CTAB:NH3H2O in this example:
H2O:TEOS=100:10:1000:0.8, aperture are about 400-900 nanometers.
Step 5, in 4 surface graft cation group of mesoporous silicon, 4 surface electrical behavior of mesoporous silicon is changed to electropositive, method
Are as follows: by micron motor 18 be dispersed to 100 milliliters of aminopropyl trimethoxysilanes (APTMS) mix with 100 ml deionized waters it is molten
With 40 DEG C of water-baths in liquid, shaking table rocks 5 hours, and by Magnetic Isolation, dehydrated alcohol and deionized water are cleaned, and can get surface ammonia
The micron motor 18 of base, surface potential are about+30 millivolts.
As shown in figure 3, magnetic of the invention drives the process that micron motor 18 is applied to Water warfare are as follows: the magnetic of preparation is driven micron
Motor 18 is scattered in the water body for needing to purify, and upper magnetic sheet 16 is arranged above water pot, and lower magnetic sheet 19, upper magnetic are arranged below water pot
The permanent magnetism pair that piece 16 and lower magnetic sheet 19 are formed, permanent magnetism are rotated to around water pot axis, and then generate rotating excitation field, to drive micron
Motor 18 enables micron motor autokinetic movement in water body, and 1 head tip 9 of conveyor screw can be used for bulky grain in broken advance at this time
Substance；Body surface silver nano-grain 12 releases silver ion in the solution, can be used for inhibiting or killing water body bacterium and microorganism；Its
The porous structure of mesoporous silicon 4 can be used for the finely ground particles in adsorbed water body；Surface positive electricity can be used for a variety of in adsorbed water body having
Machine object or pollutant with negative point；Water purification finishes, and withdraws from magnetic sheet 16, can be by 18 precipitation and separation of micron motor using lower magnetic sheet 19
Out in solution body, this can obtain clean water from water pot upper end water outlet 17.Based on this principle, which drives micron motor
18 have important application value in Industrial Wastewater Treatment, Domestic water purifying filter core, the fields such as portable field purifier.
Claims (1)
1. a kind of drive the method that micron motor carries out water purification using magnetic, it is characterised in that: including with cuspidated soft magnetism spiral
Body；Conveyor screw outer cladding layer of silicon dioxide layer, and conveyor screw tip is exposed to outside silicon dioxide layer；It is inlayed outside silicon dioxide layer
The embedding silver nano-grain with bactericidal effect；Silicon dioxide layer is connected with far from the one end at conveyor screw tip has microchannel structure
Mesoporous silicon, mesoporous silicon face by chemical modification present electropositive；Its process for purifying water is that dispersing magnetic drive micron motor in needs
In the water body to be purified, upper magnetic sheet is set above water pot, lower magnetic sheet is set below water pot, upper magnetic sheet and lower magnetic sheet are formed forever
Magnetic pair, permanent magnetism are rotated to around water pot axis, and then generate rotating excitation field, to drive a micron motor, enable water pot in water body from
Main motion, conveyor screw head tip can be used for crushing large particle substance in broken advance at this time；Body surface Nano silver grain is in solution
In release silver ion, can be used for inhibiting or killing water body bacterium and microorganism；The porous structure of its mesoporous silicon can be used for adsorbing
Finely ground particles in water body；Surface positive electricity can be used for gas chromatography or the pollutant with negative point in adsorbed water body；Water purification is complete
Finish, withdraws from magnetic sheet, micron motor precipitation and separation can be gone out in solution body using lower magnetic sheet body, this can bring out from water pot
The mouth of a river obtains clean water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910161682.7A CN109867338B (en) | 2017-02-16 | 2017-02-16 | Method for purifying water by using magnetic drive micron motor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910161682.7A CN109867338B (en) | 2017-02-16 | 2017-02-16 | Method for purifying water by using magnetic drive micron motor |
| CN201710083679.9A CN106870310B (en) | 2017-02-16 | 2017-02-16 | A kind of magnetic drive micron motor and preparation method thereof for water purification |
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| CN201710083679.9A Division CN106870310B (en) | 2017-02-16 | 2017-02-16 | A kind of magnetic drive micron motor and preparation method thereof for water purification |
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| CN109867338A true CN109867338A (en) | 2019-06-11 |
| CN109867338B CN109867338B (en) | 2021-10-01 |
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| CN201910161682.7A Active CN109867338B (en) | 2017-02-16 | 2017-02-16 | Method for purifying water by using magnetic drive micron motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496764A (en) * | 2020-05-29 | 2020-08-07 | 三峡大学 | Miniature magnetic drive capture robot and preparation method thereof |
| CN111908549A (en) * | 2020-07-09 | 2020-11-10 | 西安交通大学 | Miniature motor based on Mg particles and water purification method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742730A (en) * | 2017-09-08 | 2018-02-27 | 西安电子科技大学 | Ag/Ti4O7The preparation method of zinc-air battery cathod catalyst |
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| CN111908549A (en) * | 2020-07-09 | 2020-11-10 | 西安交通大学 | Miniature motor based on Mg particles and water purification method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106870310A (en) | 2017-06-20 |
| CN109867338B (en) | 2021-10-01 |
| CN106870310B (en) | 2019-03-19 |
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