CN111908549A - Miniature motor based on Mg particles and water purification method - Google Patents
Miniature motor based on Mg particles and water purification method Download PDFInfo
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- CN111908549A CN111908549A CN202010658511.8A CN202010658511A CN111908549A CN 111908549 A CN111908549 A CN 111908549A CN 202010658511 A CN202010658511 A CN 202010658511A CN 111908549 A CN111908549 A CN 111908549A
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- 239000002245 particle Substances 0.000 title claims abstract description 78
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000000746 purification Methods 0.000 title claims abstract description 25
- 239000010931 gold Substances 0.000 claims abstract description 38
- 229910052737 gold Inorganic materials 0.000 claims abstract description 38
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229940037003 alum Drugs 0.000 claims abstract description 33
- 230000003197 catalytic effect Effects 0.000 claims abstract description 9
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 claims abstract description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 22
- 229920000052 poly(p-xylylene) Polymers 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 9
- 239000000084 colloidal system Substances 0.000 claims description 8
- 238000007605 air drying Methods 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 238000000151 deposition Methods 0.000 claims description 5
- 108010010803 Gelatin Proteins 0.000 claims description 4
- 229920000159 gelatin Polymers 0.000 claims description 4
- 239000008273 gelatin Substances 0.000 claims description 4
- 235000019322 gelatine Nutrition 0.000 claims description 4
- 235000011852 gelatine desserts Nutrition 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract description 3
- 239000008096 xylene Substances 0.000 abstract description 3
- 239000011777 magnesium Substances 0.000 description 48
- 239000010865 sewage Substances 0.000 description 13
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000000969 carrier Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- ZATZOOLBPDMARD-UHFFFAOYSA-N magnesium;hydrate Chemical compound O.[Mg] ZATZOOLBPDMARD-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000002198 surface plasmon resonance spectroscopy Methods 0.000 description 1
Images
Classifications
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- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a miniature motor based on Mg particles and a water purification method, wherein a gold layer, an alum layer and a poly-p-xylene layer are sequentially stacked on the Mg particles in a layered mode, and the diameter of the Mg particles is 15-25 mm. The invention achieves the purpose of more stable water purification in a wider range based on the photothermal effect and catalytic capability of the nano-gold and the stability function of the poly-xylene.
Description
Technical Field
The invention belongs to the technical field of chemistry, and particularly relates to a miniature motor based on Mg particles and a water purification method.
Background
With the progress of science and technology, municipal sewage is no longer wastewater, but is a precious resource. Since it is a resource, it is most utilized. The regeneration utilization rate of the urban sewage is improved, the pollutant discharge can be reduced, and limited water resources are saved. The promotion of the sewage treatment and reuse work fully reflects the people-oriented requirements of scientific development and observation, reflects the urgent desire of the masses, is an objective requirement for promoting the urbanization construction, is an important means for realizing reasonable allocation, scientific protection and cyclic utilization of water resources, and has great significance for constructing a resource-saving and environment-friendly society. The sewage treatment process is an effective treatment method for various economic, reasonable, scientific and industrial waste water of urban domestic sewage.
Sewage treatment refers to a process of physical, chemical, and biological purification of sewage discharged to a certain water body within a certain period of time in order to achieve the requirement of harmlessness or reuse. When water is purified by a physical or chemical method in the prior art, water purifying substances are usually directly put into a sewage tank and the like, and the water purifying substances can only carry out regional water purification at the putting position, so that a large-area or even comprehensive water purifying mode cannot be achieved. Particularly, in the case of purifying water with alum, alum generally forms colloid at the place of administration to adsorb impurities and precipitate, and cannot be diffused to a larger area to purify water.
Gold nanoparticles are a nano-sized substance with good optical properties, with a unique local surface plasmon resonance effect and good photo-thermal effect. The nano gold layer can better promote the operation of the micro motor through photo-thermal effect and self catalytic action. Parylene is chemically inert, has a conformal surface coating, and is a good polymer insulation layer. Stability during propulsion can be ensured.
Disclosure of Invention
The invention aims to solve the technical problem of providing a micro motor based on Mg particles and a water purification method aiming at the defects in the prior art, wherein the micro motor is pushed to advance based on the reaction of Mg and water, the reaction is accelerated by the catalytic action of a nano gold layer, and the water purification of a larger area or even a whole area is realized by the stabilizing action of a poly xylene layer.
The invention adopts the following technical scheme:
a miniature motor based on Mg particles comprises Mg particles, wherein a gold layer, an alum layer and a poly-p-xylene layer are sequentially stacked on the Mg particles in a layered mode, and the diameter of the Mg particles is 15-25 mm.
Specifically, the thickness of the gold layer is 90-120 nm.
Specifically, the thickness of the alum layer is 5-10 mm.
Specifically, the thickness of the parylene layer is 700 to 800 nm.
Specifically, the Mg particles are washed with acetone and dried at room temperature; then dispersing Mg particles in acetone, and then exposing the Mg particles in the air at room temperature by adopting a physical adsorption mode; depositing gold layer on Mg particles, dripping gelatin solution, and adding N2Air-drying, washing with pure water, and adding N2Air-drying, coating a poly-p-xylene layer, and collecting the coating with a diameter of 20-36 mmA Mg particle micromotor.
Further, washing Mg particles with acetone for at least three times, wherein the concentration of Mg particles dispersed in acetone is 0.1-0.3 g/ml, and N is used for the first time2The air drying time is 30-40 minutes.
According to another technical scheme, the water purification method adopts an embedding method, Mg particles are used as a carrier, then a gold layer, an alum layer and a parylene layer are sequentially stacked on the carrier in a layered mode to form a micro motor, and the Mg particles and water react to provide assistance to propel so as to push the alum particles to continue to react; the alum particles are dissolved to form colloid to adsorb impurities, so that the water purification treatment is realized.
Specifically, when illumination is applied, the nano gold layer converts light energy into heat energy, and a photothermal effect and a catalytic effect are generated to promote the reaction of Mg particles and water.
Compared with the prior art, the invention has at least the following beneficial effects:
the invention relates to a miniature motor based on Mg particles, which adopts an embedding method, takes the Mg particles as a carrier, then a gold layer is sequentially stacked on the carrier in a layered mode, an alum layer and a parylene layer form the miniature motor, the Mg particles react with water to provide assistance for propulsion, and the alum particles are pushed to continue to react forwards; the alum particles are dissolved to form colloid to adsorb impurities to realize water purification treatment, and under the protection of the poly-p-xylene layer and the catalytic action of the nano gold layer, the micro motor using the Mg particles as carriers can advance more stably and more quickly, so that the alum is better pushed to purify water.
Further, a gold layer is deposited on the glass slide coated with the magnesium particles by using an electron beam evaporator, and the thickness of the gold layer is 90-120 nm. The gold layer of the micromotor can effectively convert light into heat, and the photothermal effect can obviously accelerate the magnesium-water chemical reaction, so that the forward propulsion of the micromotor is enhanced.
Furthermore, the thickness of the prepared alum layer is 5-10 mm, and the alum layer is dissolved to form colloid to adsorb impurities, so that water purification treatment can be realized.
Further, a parylene coater is used for coating parylene on the glass slide, and the thickness of the parylene is 700-800 nm. As a shell support for the whole particle, stability during propulsion can be effectively ensured.
Furthermore, Mg particles are used as carriers, then the gold layer, the alum layer and the parylene layer are sequentially stacked on the Mg particle carriers in a layered mode to form the micro motor, the driving force of the micro motor is effectively improved, and a large-area water purification mode can be realized.
A miniature motor water purification method based on Mg particles is characterized in that under the protection of a parylene layer and the catalytic action of a nano gold layer, a miniature motor using Mg particles as a carrier can advance more stably and more quickly, so that alum is better pushed to purify water.
In conclusion, the invention achieves the purpose of purifying water more stably in a wider range based on the photothermal effect and catalytic capability of the nano-gold and the stability function of the poly-xylene.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic view of a micro-motor;
fig. 2 is a view showing a manufacturing process of the micro-motor.
Wherein, 1.Mg particles; 2. a gold layer; 3. an alum layer; 4. a parylene layer.
Detailed Description
The invention provides a miniature motor for water purification based on Mg particles and a water purification method, wherein an embedding method is adopted, the Mg particles are used as carriers, then a gold layer, an alum layer and a poly-p-xylene layer are sequentially stacked in a layered mode, the Mg particles react with water to provide the propulsion assistance of the miniature motor, and the alum particles are pushed to continue to react forwards; when the nano gold layer is irradiated by illumination, light energy is better converted into heat energy, the generated photo-thermal effect and the good catalysis effect of the nano gold layer can better promote the reaction of Mg particles and water, and a layer of parylene deposited on the outermost layer is used for ensuring the stability in the propelling process.
Referring to fig. 1, the micro motor for purifying water based on Mg particles according to the present invention includes Mg particles 1, and a gold layer 2, an alum layer 3, and a parylene layer 4 are sequentially disposed outside the Mg particles 1.
And depositing a gold layer on the glass slide coated with the magnesium particles by using an electron beam evaporator, wherein the thickness of the gold layer is 90-120 nm. The gold layer with the thickness can effectively convert light into heat, and the photothermal effect can remarkably accelerate the magnesium-water chemical reaction, thereby enhancing the forward propulsion of the micro-motor.
The thickness of the prepared alum layer is 5-10 mm, and the alum layer with the thickness can be effectively dissolved to form colloid to adsorb impurities, so that water purification treatment can be realized.
The parylene coating machine is used for coating parylene on a glass slide, the thickness of the parylene coating machine is 700-800 nm, the parylene coating machine is used as a shell support of the whole particle, and the thickness can effectively ensure the stability in the propelling process.
When alum is dissolved in water to form colloid to adsorb impurities, magnesium and water react to provide assistance for propulsion, the micro motor is pushed to continue to make alum particles react forwards, in the process, when external illumination irradiates, the nano gold layer converts light energy into heat energy through the photothermal effect, the good catalysis effect of the nano gold layer can better promote the reaction of Mg and water, and the outermost layer deposits a layer of parylene to ensure the stability in the propulsion process.
Referring to fig. 2, the process for manufacturing the Mg particle-based micro motor specifically includes:
the magnesium particles were first washed three times with acetone and dried at room temperature before use. Mg particles are dispersed in acetone at a concentration of about 0.1 to 0.3g/ml and then spread on a slide at room temperature. After evaporation of the acetone, the magnesium particles attach to the slide surface by physical adsorption, exposing most of the surface area of the particles to air.
After deposition, a solution containing gelatin was dropped on the slide, and after deposition with N, a solution containing gelatin was dropped on the slide, and then with N2After gas drying for 30-40 minutes, the slides were washed with pure water and N2And (5) drying the gas.
A micromotor 20-36 mm in diameter is collected by scraping from a slide.
The specific water purification steps are as follows:
s1, reacting Mg particles with water to push the micro motor to advance;
the diameter of the Mg particles is 15-25 mm.
S2, the nano gold layer pushes the micro motor to operate through photo-thermal effect and self catalytic action, and a layer of parylene is deposited on the outermost layer to ensure stability in the propelling process;
the thickness of the deposited gold layer is 90-120 nm, and the thickness of the parylene deposited on the outermost layer of the shell frame is 700-800 nm.
S3, in the advancing process of the micro motor, alum is dissolved to form colloid to adsorb impurities, so that water purification is realized.
The thickness of the deposited alum layer is 5-10 mm.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
2200mL of wastewater (suspended impurity content in water is 200-300mg/L) is prepared and placed in a simulated sewage pool connected with a sewer pipe, and the size of the sewage pool is 20 x 20cm3The pipeline opening is arranged at the lower end of the sewage pool, and the diameter of the pipeline opening is 2 cm. And gold layer recovery equipment is arranged at the pipe orifice, so that the gold layer is recovered when the alum in the micro motor is consumed.
Under the dark condition, 10 manufactured micro motors with the diameters of 20-36 mm are put into a sewage pool, and the Mg particles and water react to push the micro motors to advance slowly. The water turbidity was found to improve every 1 hour interval, but the progress was slower.
Under the condition of illumination, the 10 manufactured micro motors with the diameters of 20-36 mm are put into a sewage pool, and the fact that the advancing speed of the micro motors is high and the reaction of Mg particles and water is severe is found. The rate of decrease in the degree of turbidity of the water was found to be rapid when observed every hour. In this process, the micromotor is kept in a relatively stable state at all times due to the protective effect of the outermost parylene.
In conclusion, the miniature motor water purification method based on Mg effectively combines the driving force generated by the reaction of Mg particles and water and the water purification capacity of alum, and realizes wider and more stable water purification under the effective photo-thermal condition and the self-catalytic capacity of the nano gold layer and the stabilizing effect of the poly-p-xylene layer.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (8)
1. A miniature motor based on Mg particles is characterized by comprising Mg particles, wherein a gold layer, an alum layer and a poly-p-xylene layer are sequentially stacked on the Mg particles in a layered mode, and the diameter of the Mg particles is 15-25 mm.
2. A micromotor based on Mg particles according to claim 1, characterized in that the thickness of the gold layer is 90 to 120 nm.
3. A Mg particle-based micromotor according to claim 1, wherein the thickness of the alum layer is 5 to 10 mm.
4. A micromotor based on Mg particles according to claim 1, characterized in that the thickness of the parylene layer is 700 to 800 nm.
5. A Mg-particle-based micromotor according to claim 1, characterized in that the Mg-particles are first washed with acetone and dried at room temperature; then dispersing Mg particles in acetone, and then exposing the Mg particles in the air at room temperature by adopting a physical adsorption mode; depositing gold layer on Mg particles, dripping gelatin solution, and adding N2Air-drying, washing with pure water, and adding N2And (3) air-drying, coating a parylene layer, and collecting to obtain the Mg particle micromotor with the diameter of 20-36 mm.
6. A miniature motor based on Mg particles as claimed in claim 5, wherein the Mg particles are washed at least three times with acetone, the Mg particles are dispersed in acetone at a concentration of 0.1-0.3 g/ml, and the first N is2The air drying time is 30-40 minutes.
7. A water purification method is characterized in that an embedding method is adopted, Mg particles are used as a carrier, then a gold layer, an alum layer and a poly-p-xylene layer are sequentially stacked on the carrier in a layered mode to form a micro motor, the Mg particles react with water to provide assistance for propulsion, and the alum particles are pushed to continue to react forwards; the alum particles are dissolved to form colloid to adsorb impurities, so that the water purification treatment is realized.
8. The method of claim 7, wherein the nano-gold layer converts light energy into heat energy when illuminated with light, producing photothermal and catalytic effects to promote the reaction of the Mg particles with water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010658511.8A CN111908549B (en) | 2020-07-09 | 2020-07-09 | Miniature motor based on Mg particles and water purification method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010658511.8A CN111908549B (en) | 2020-07-09 | 2020-07-09 | Miniature motor based on Mg particles and water purification method |
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| CN111908549A true CN111908549A (en) | 2020-11-10 |
| CN111908549B CN111908549B (en) | 2021-11-19 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6881346B2 (en) * | 2002-05-16 | 2005-04-19 | Halliburton Energy Services, Inc. | Methods of treating phosphate in a body of water |
| CN106311340A (en) * | 2016-09-28 | 2017-01-11 | 济南大学 | Preparation method of micron motor catalyst based on polydivinylbenzene (PDVB) porous beads |
| WO2018129390A1 (en) * | 2017-01-06 | 2018-07-12 | The Regents Of The University Of California | Micromotors and nanomotors for gastrointestinal diagnosis and treatment applications |
| US20190062185A1 (en) * | 2017-11-01 | 2019-02-28 | Mahmoud Amouzadeh Tabrizi | Nanomotors for reduction of nitroarenes |
| CN109867338A (en) * | 2017-02-16 | 2019-06-11 | 三峡大学 | A method of micron motor, which is driven, using magnetic carries out water purification |
-
2020
- 2020-07-09 CN CN202010658511.8A patent/CN111908549B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6881346B2 (en) * | 2002-05-16 | 2005-04-19 | Halliburton Energy Services, Inc. | Methods of treating phosphate in a body of water |
| CN106311340A (en) * | 2016-09-28 | 2017-01-11 | 济南大学 | Preparation method of micron motor catalyst based on polydivinylbenzene (PDVB) porous beads |
| WO2018129390A1 (en) * | 2017-01-06 | 2018-07-12 | The Regents Of The University Of California | Micromotors and nanomotors for gastrointestinal diagnosis and treatment applications |
| CN109867338A (en) * | 2017-02-16 | 2019-06-11 | 三峡大学 | A method of micron motor, which is driven, using magnetic carries out water purification |
| US20190062185A1 (en) * | 2017-11-01 | 2019-02-28 | Mahmoud Amouzadeh Tabrizi | Nanomotors for reduction of nitroarenes |
Non-Patent Citations (1)
| Title |
|---|
| JINXING LI等: "Water-Driven Micromotors for Rapid Photocatalytic Degradation Of Biological and Chemical Warfare Agents", 《ACSNANO》 * |
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