CN114749656A - Preparation method of metal nano iron/nano copper particle solution and working solution - Google Patents

Preparation method of metal nano iron/nano copper particle solution and working solution Download PDF

Info

Publication number
CN114749656A
CN114749656A CN202011577816.2A CN202011577816A CN114749656A CN 114749656 A CN114749656 A CN 114749656A CN 202011577816 A CN202011577816 A CN 202011577816A CN 114749656 A CN114749656 A CN 114749656A
Authority
CN
China
Prior art keywords
nano
solution
iron
copper particle
copper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011577816.2A
Other languages
Chinese (zh)
Inventor
赵小强
陈瑜
鹿金颖
李华盛
周军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Space Shenzhou Biology & Technology Group Co ltd
Original Assignee
Space Shenzhou Biology & Technology Group Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Space Shenzhou Biology & Technology Group Co ltd filed Critical Space Shenzhou Biology & Technology Group Co ltd
Priority to CN202011577816.2A priority Critical patent/CN114749656A/en
Publication of CN114749656A publication Critical patent/CN114749656A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/16—Heavy metals; Compounds thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/16—Heavy metals; Compounds thereof
    • A01N59/20—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00—Other inorganic fertilisers
    • C05D9/02—Other inorganic fertilisers containing trace elements
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/20—Liquid fertilisers

Abstract

The invention discloses a preparation method of a metal nano-iron/nano-copper particle solution, which comprises the following steps: placing metal nano iron/nano copper particles with the particle size of 50-100nm into a water-soluble dispersant, and stirring to prepare a metal nano iron/nano copper particle dispersion system; the metallic nano-iron/nano-copper particle dispersion is diluted with a diluent to obtain a dispersed metallic nano-iron/nano-copper particle solution. The method adopts the water-soluble dispersing agent to ensure that the metal nano iron particles and the copper particles are uniformly and stably dispersed in water or plant growth nutrient solution for a long time. The invention also discloses a method for preparing the metal nano-iron/nano-copper particle working solution by using the metal nano-iron/nano-copper particle solution.

Description

Preparation method of metal nano iron/nano copper particle solution and working solution
Technical Field
The invention relates to the technical field of nano materials, in particular to a preparation method of a metal nano iron/nano copper particle solution.
Background
Nanotechnology has been widely used in many scientific fields, and it is also widely used in agriculture. The nano particles, namely metal (oxide) nano particles, carbon nano tubes and the like are used as nano fertilizers, nano insecticides, bactericides and herbicides. The metal nano iron and nano copper are important nano materials and have higher material activity and magnetism. Researches show that the low-dose nano iron has a promoting effect on the growth of plants, can be used as a special fertilizer singly or in combination with a plant growth nutrient solution, and can promote the growth of the plants and improve the yield of the plants in agricultural production; the nano copper has large surface activity and excellent bactericidal performance, so the nano copper can be used as an effective bactericide and can effectively prevent plant diseases in agricultural production. The surface effect, brownian motion, van der waals force and hydrogen bond influence of the nano particles make the nano particles easy to agglomerate and settle in the solvent. In the prior art, soft aggregates of nanoparticles can be broken up by using an ultrasonic cell disruptor, and powder is dispersed in a medium in smaller aggregates after strong impact, shearing and grinding. However, this method can only disperse the nanoparticles in the solvent temporarily, and the nanoparticles in the solvent can still generate agglomeration and sedimentation phenomenon within 4-6 hours after the ultrasonic treatment.
Therefore, how to store the nano iron particles or copper particles in the solution for a long time to avoid agglomeration and sedimentation is an urgent problem to be solved in the technical field of nano materials.
Disclosure of Invention
In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a method for preparing a metal nano-iron/nano-copper particle solution, wherein a water-soluble dispersant is adopted to uniformly and stably disperse metal nano-iron particles and copper particles in water or a plant growth nutrient solution for a long time, thereby laying a solid foundation for developing novel agricultural nano-fertilizers.
According to the invention, the preparation method of the metal nano-iron/nano-copper particle solution comprises the following steps:
placing metal nano iron/nano copper particles with the particle size of 50-100nm into a water-soluble dispersant, and stirring to prepare a metal nano iron/nano copper particle dispersion system;
diluting the metal nano-iron/nano-copper particle dispersion system by using a diluent to obtain a dispersed metal nano-iron/nano-copper particle solution.
According to one embodiment of the invention, the water-soluble dispersant is glycerol or mercaptopropionic acid.
According to one embodiment of the invention, the mass-to-volume ratio of the metal nano iron particles to the water-soluble dispersing agent is 2.8mg:0.1-1mL, and the mass-to-volume ratio of the metal nano copper particles to the water-soluble dispersing agent is 3.2mg:1-10 mL.
An embodiment according to the invention is characterized in that the diluent is water or a plant growth nutrient solution. Wherein the metal nano-iron/nano-copper particle dispersion can be diluted with a diluent in any volume ratio.
One embodiment according to the invention is characterized in that the plant growth nutrient solution is a solution a in which the solvent is water, said solution a comprising the following solvents in concentrations: MgSO (MgSO)4·7H2O 200-400mg/L、KH2PO4100-500 mg/L、KI 1-15mg/L、H3BO35-15 mg/L、ZnSO4·7H2O 5-50mg/L、MnSO4·H2O 15-50mg/L、Na2MoO4·2H2O 0.1-8mg/L、CuSO4·5H2O 0.001-0.1mg/L、CoCl·6H2O 0.001-1mg/L。
One embodiment according to the invention is characterized in that the plant growth nutrient solution is a solution B in which the solvent is water, the solution B comprising the following solvents in concentration: MgSO (MgSO)4·7H2O 200-400mg/L、KH2PO4100-500 mg/L、KI 1-15mg/L、H3BO35-15 mg/L、ZnSO4·7H2O 5-50mg/L、MnSO4·H2O 15-50mg/L、Na2MoO4·2H2O 0.1-8mg/L、CuSO4·5H2O 0.001-0.1mg/L、CoCl·6H20.001-1mg/L of O and 50-1500mg/L of chitin.
According to an embodiment of the present invention, the plant growth nutrient solution is a solution C in which the solvent is water, and the solution C contains the following solvents in the following concentrations: KNO31000-3000 mg/L、MgSO4·7H2O 200-400mg/L、KH2PO4100-500 mg/L、KI 1-15mg/L、H3BO35-15mg/L、ZnSO4·7H2O 5-50mg/L、MnSO4·H2O 15-50mg/L、Na2MoO4·2H2O 0.1-8mg/L、CuSO4·5H2O 0.001-0.1mg/L、CoCl·6H20.001-1mg/L of O and 50-1500mg/L of chitin.
According to one embodiment of the invention, the plant growth nutrient solution is a solution D with water as a solvent, and the solution D comprises a concentration ratioThe following solvents: KNO31000-3000 mg/L、FeSO4·7H2O 20-50mg/L、Na2EDTA30-60 mg/L、MgSO4·7H2O200-400 mg/L、KH2PO4100-500 mg/L、KI 1-15mg/L、H3BO35-15 mg/L、ZnSO4·7H2O 5-50mg/L、MnSO4·H2O 15-50mg/L、Na2MoO4·2H2O 0.1-8mg/L、CuSO4·5H2O 0.001-0.1mg/L、CoCl·6H20.001-1mg/L of O and 50-1500mg/L of chitin.
According to an embodiment of the present invention, the stirring comprises shaking for 10-30min using a turbine shaker.
According to the invention, the method for preparing the metal nano-iron/nano-copper particle working solution by using the metal nano-iron/nano-copper particle solution is provided, and the metal nano-iron/nano-copper particle solution is diluted to a working concentration by using a diluent so as to obtain the metal nano-iron/nano-copper particle working solution.
The invention has the beneficial effects that:
(1) the method overcomes the defect of relying on an ultrasonic cell disruptor to disperse, and has simple operation, short time consumption and low cost;
(2) under the dispersion action of glycerol or mercaptopropionic acid, the uniformly dispersed nano iron particles and nano copper particles are not easy to agglomerate and settle, and can be uniformly and stably stored in a solvent for a long time;
(3) the nano iron particles dispersed by the method have the particle size distribution of 143.8 +/-90 nm in the solution, and can be used as a nano fertilizer for spraying plants to promote the growth of the plants, so that the yield of the plants can be improved;
(4) the particle size distribution of the nano-copper particles dispersed by the method in the solution is between 150 +/-100 nm, and the nano-copper particles can be used as a bactericide to effectively prevent plant diseases.
Drawings
FIG. 1 is a flow chart of a method for preparing a metallic nano-iron/nano-copper particle solution according to the present invention;
FIGS. 2A-2C are a scanning electron microscope image and a transmission electron microscope image of the metal nano-iron particles;
FIGS. 3A-3B are the scanning electron microscope and transmission electron microscope images of the metal nano-copper particles.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the preparation method of the metallic nano-iron/nano-copper particle solution according to the present invention generally comprises the following steps: firstly, placing metal nano iron/nano copper particles in a water-soluble dispersant, and stirring to prepare a metal nano iron/nano copper particle dispersion system; secondly, diluting the metal nano-iron/nano-copper particle dispersion by using a diluent to obtain a dispersed metal nano-iron/nano-copper particle solution, wherein the metal nano-iron/nano-copper particle dispersion can be diluted by the diluent in any volume ratio. The particle size of the metal nano iron particles in the dispersed metal nano copper particle solution is 143.8 +/-90 nm, and the particle size of the metal nano copper particles in the dispersed metal nano copper particle solution is 150 +/-100 nm. Aiming at specific actual working condition requirements, a user can dilute the metal nano-iron/nano-copper particle solution to a required working concentration by using a diluent so as to obtain the metal nano-iron/nano-copper particle working solution which can be directly applied to plants.
In the embodiment of the invention, the nano material used is nano zero-valent iron or zero-valent copper with the particle size distribution of about 50-100 nm. Specifically, as shown in fig. 2A-3B, the nano-iron particles are generally spherical (fig. 2A), and in a natural state, the nano-iron particles are gathered into a chain form due to magnetic and electrostatic attraction (fig. 2B, 2C); the sample nano-copper particles have spherical or nearly spherical particles, and because of the high surface activity of the nano-particles, part of the particles are agglomerated (fig. 3A and 3B).
Preferably, glycerol or mercaptopropionic acid can be used as a dispersant in the preparation of metal nano-iron/nano-copper particle dispersions. Specifically, the metal nano iron particles/copper particles are fully mixed with the water-soluble dispersing agent according to a specific mass-volume ratio, so that the metal nano iron particles/copper particles are dispersed under the action of the water-soluble dispersing agent. The mass-volume ratio of the metal nano iron particles to the water-soluble dispersing agent is preferably 2.8mg:0.1-1mL, and the mass-volume ratio of the metal nano copper particles to the water-soluble dispersing agent is preferably 3.2mg:1-10 mL. In the embodiment of the present invention, the metal nano-iron particles and the water-soluble dispersant may be fully mixed by stirring, for example, stirring with a glass rod or shaking for 10-30min with the aid of an apparatus such as a turbine oscillator, and those skilled in the art may also promote the metal nano-iron particles and the water-soluble dispersant to be fully mixed in other ways depending on the actual conditions. Different from the prior art, the stirring effect of the invention is to promote the metal nano iron particles and the water-soluble dispersing agent to be fully mixed, so as to be beneficial to the water-soluble dispersing agent to fully exert the dispersing effect, therefore, the stirring cost and the operation time are far shorter than the time for dispersing the nano particles by using an ultrasonic cell crusher, thereby saving the time and reducing the cost.
The metal nano iron/nano copper particle dispersion system can be singly used after being diluted by water or can be used together with a nutrient solution after being diluted by a plant growth nutrient solution, and the specific diluted concentration can be set according to the actual working condition. Preferably, the plant growth nutrient solution may include, but is not limited to, the following: solution A, water as solvent and MgSO as solvent and concentration ratio4·7H2O 200-400mg/L、KH2PO4100-500 mg/L、KI 1-15mg/L、H3BO35-15 mg/L、ZnSO4·7H2O 5-50mg/L、MnSO4·H2O 15-50mg/L、Na2MoO4·2H2O 0.1-8mg/L、CuSO4·5H2O 0.001-0.1mg/L、CoCl·6H2O0.001-1 mg/L; solution B, the solvent is water, and the concentration ratio of the solvent to the solvent is MgSO4·7H2O 200-400mg/L、KH2PO4100-500 mg/L、KI 1-15mg/L、H3BO35-15 mg/L、ZnSO4·7H2O 5-50mg/L、MnSO4·H2O 15-50mg/L、Na2MoO4·2H2O 0.1-8mg/L、CuSO4·5H2O 0.001-0.1mg/L、CoCl·6H20.001-1mg/L of O and 50-1500mg/L of chitin; solution C, water as solvent, KNO as solvent and concentration ratio thereof31000-3000 mg/L、MgSO4·7H2O 200-400mg/L、KH2PO4100-500 mg/L、KI 1-15mg/L、H3BO35-15 mg/L、ZnSO4·7H2O 5-50mg/L、MnSO4·H2O 15-50mg/L、Na2MoO4·2H2O 0.1-8mg/L、CuSO4·5H2O 0.001-0.1mg/L、CoCl·6H20.001-1mg/L of O and 50-1500mg/L of chitin; and solution D, the solvent is water, and the concentration ratio of the solvent to the solvent is KNO31000-3000 mg/L、FeSO4·7H2O 20-50mg/L、Na2EDTA30-60 mg/L、MgSO4·7H2O 200-400mg/L、KH2PO4100-500 mg/L、KI 1-15mg/L、H3BO35-15 mg/L、ZnSO4·7H2O 5-50mg/L、MnSO4·H2O 15-50mg/L、Na2MoO4·2H2O 0.1-8mg/L、CuSO4·5H2O 0.001-0.1mg/L、CoCl·6H20.001-1mg/L of O and 50-1500mg/L of chitin.
Example 1
And (3) putting 28mg of nano iron particles into 1ml of glycerol, fully stirring for 15min by using a glass rod, fully dispersing the nano iron particles, and then adding 9ml of distilled water to prepare a nano iron particle solution with the mother solution concentration of 2.8 mg/ml. Then 2 parts of the same nano-iron particle solution are respectively added into 5L of water and 10L of solution A, and finally, two parts of uniform and stable working solution of nano-iron particles can be obtained.
Wherein the solvent of the solution A and the concentration thereof are MgSO4·7H2O 200mg/L、KH2PO4100mg/L、KI 1mg/L、H3BO35 mg/L、ZnSO4·7H2O 5mg/L、MnSO4·H2O 15mg/L、Na2MoO4·2H2O 0.1mg/L、CuSO4·5H2O 0.001mg/L、CoCl·6H2O 0.001mg/L。
By observation, the metal nano iron particle solutions in the two working solutions are not agglomerated and precipitate is not generated after 30 days.
Example 2
And (3) respectively placing 3.2mg of nano-copper particles in 1ml of glycerol, shaking for 10min under the action of a turbine oscillator, fully dispersing the nano-copper particles, and then adding 9ml of solution B to prepare a nano-copper particle solution with the mother solution concentration of 0.32 mg/ml. Then 3 parts of the same nano-copper particle solution was added to 10 parts of each4And finally obtaining uniform and stable working solution of 3 parts of nano copper particles from the solution B, the solution C and the solution D.
Wherein the solvent of the solution B and the concentration thereof are MgSO4·7H2O 200mg/L、KH2PO4 100mg/L、KI 1mg/L、H3BO3 5mg/L、ZnSO4·7H2O 5mg/L、MnSO4·H2O 15mg/L、Na2MoO4·2H2O 0.1mg/L、CuSO4·5H2O 0.001mg/L、CoCl·6H2O0.001 mg/L and chitin 50 mg/L; solution C solvent and its concentration KNO3 1000mg/L、MgSO4·7H2O 200mg/L、KH2PO4 100mg/L、KI 1mg/L、H3BO3 5mg/L、ZnSO4·7H2O 5mg/L、MnSO4·H2O 15mg/L、Na2MoO4·2H2O 0.1mg/L、CuSO4·5H2O 0.001mg/L、CoCl·6H2O0.001 mg/L and chitin 50 mg/L; solution D solvent and its concentration KNO3 1000mg/L、FeSO4·7H2O 20mg/L、Na2EDTA30mg/L、MgSO4·7H2O 200mg/L、KH2PO4 100mg/L、KI 1mg/L、H3BO3 5mg/L、ZnSO4·7H2O 5mg/L、MnSO4·H2O 15mg/L、Na2MoO4·2H2O 0.1mg/L、CuSO4·5H2O 0.001mg/L、CoCl·6H20.001mg/L of O and 50mg/L of chitin.
By observation, the metal nano iron particle solution in 3 parts of working solution does not agglomerate and generate no precipitate after 30 days.
Example 3
And (3) putting 28mg of nano iron in 1ml of mercaptopropionic acid, fully stirring for 30min by using a glass rod, fully dispersing the nano material, and then adding 9ml of distilled water to prepare a nano iron particle solution with the mother solution concentration of 2.8 mg/ml. Then 2 parts of the same nano-iron particle solution are respectively added into 5L of the solution A and 10L of the solution C, and finally, two parts of uniform and stable working solution of nano-iron particles can be obtained.
The solvent of the solution A and the concentration ratio thereof are MgSO4·7H2O 400mg/L、KH2PO4500 mg/L、KI15 mg/L、H3BO315 mg/L、ZnSO4·7H2O50 mg/L、MnSO4·H2O50 mg/L、Na2MoO4·2H2O8 mg/L、CuSO4·5H2O0.1 mg/L、CoCl·6H2O1 mg/L; the solvent of the solution C and the concentration of the solvent are KNO3 3000mg/L、MgSO4·7H2O 400mg/L、KH2PO4 500mg/L、KI 15mg/L、H3BO3 15mg/L、ZnSO4·7H2O 50mg/L、MnSO4·H2O 50mg/L、Na2MoO4·2H2O 8mg/L、CuSO4·5H2O 0.1mg/L、CoCl·6H2O1 mg/L and chitin 1500 mg/L.
By observation, the metal nano iron particle solutions in the two working solutions do not agglomerate and generate no precipitate after 30 days.
Example 4
3.2mg of nano-copper is respectively placed in 1ml of mercaptopropionic acid, the oscillation is carried out for 30min under the action of a turbine oscillator, 9ml of distilled water is added after the nano-materials are fully dispersed, and nano-copper particle solution with the mother solution concentration of 0.32mg/ml is prepared. Then 2 parts of the same nano-iron particle solution are respectively added into 10L of the solution B and the solution D, and finally, two parts of uniform and stable working solution of nano-iron particles can be obtained.
Wherein the solvent of the solution B and the concentration thereof are MgSO4·7H2O 400mg/L、KH2PO4 500mg/L、KI 15mg/L、H3BO3 15mg/L、ZnSO4·7H2O 50mg/L、MnSO4·H2O 50mg/L、Na2MoO4·2H2O 8mg/L、CuSO4·5H2O 0.1mg/L、CoCl·6H2O1 mg/L and chitin 1500 mg/L; the solvent of the solution D and the concentration of the solvent are KNO3 3000mg/L、FeSO4·7H2O 50mg/L)Na2EDTA60mg/L、MgSO4·7H2O 400mg/L、KH2PO4 500mg/L、KI 15mg/L、H3BO3 15mg/L、ZnSO4·7H2O 50mg/L、MnSO4·H2O 50mg/L、Na2MoO4·2H2O 8mg/L、CuSO4·5H2O 0.1mg/L、CoCl·6H2O1 mg/L and chitin 50-1500 mg/L.
By observation, the metal nano iron particle solutions in the two working solutions are not agglomerated and precipitate is not generated after 30 days.
Example 5
And (3) putting 28mg of nano iron particles into 10ml of glycerol, fully stirring for 15min by using a glass rod, fully dispersing the nano iron particles, and then adding 9ml of solution C to prepare a nano iron particle dispersion system with the mother liquor concentration of 2.8 mg/ml. Then 2 parts of the same nano-iron particle dispersion system are respectively added into 5L of water and 10L of solution A, and finally, two parts of uniform and stable working solution of nano-iron particles can be obtained.
Wherein the solvent of the solution A and the concentration thereof are MgSO4·7H2O 200mg/L、KH2PO4100mg/L、KI1 mg/L、H3BO35 mg/L、ZnSO4·7H2O 5mg/L、MnSO4·H2O 15mg/L、Na2MoO4·2H2O 0.1mg/L、CuSO4·5H2O 0.001mg/L、CoCl·6H2O0.001 mg/L; the solvent of the solution C and the concentration ratio thereof are KNO3 2000mg/L、MgSO4·7H2O 300mg/L、KH2PO4 300mg/L、KI 8mg/L、H3BO3 10mg/L、ZnSO4·7H2O 30mg/L、MnSO4·H2O 25mg/L、Na2MoO4·2H2O 4mg/L、CuSO4·5H2O 0.05mg/L、CoCl·6H20.5mg/L of O and 750mg/L of chitin.
By observation, the metal nano iron particle solutions in the two working solutions are not agglomerated and precipitate is not generated after 30 days.
Example 6
And respectively placing 3.2mg of nano-copper particles in 10ml of glycerol, vibrating for 10min under the action of a turbine oscillator, fully dispersing the nano-copper particles, and then adding 9ml of solution A to prepare a nano-copper dispersion system with the mother liquor concentration of 0.32 mg/ml. Then, 3 parts of the same nano-copper particle dispersion was added to 10 parts of each4And finally obtaining uniform and stable working solution of 3 parts of nano copper particles from the solution B, the solution C and the solution D.
Wherein the solvent of the solution A and the concentration ratio thereof are MgSO4·7H2O 300mg/L、KH2PO4400mg/L、KI 8mg/L、H3BO3 10mg/L、ZnSO4·7H2O 30mg/L、MnSO4·H2O 25mg/L、Na2MoO4·2H2O 4mg/L、CuSO4·5H2O 0.04mg/L、CoCl·6H2O0.6 mg/L; solvent of solution B and its concentration is MgSO4·7H2O 200mg/L、KH2PO4 100mg/L、KI 1mg/L、H3BO3 5mg/L、ZnSO4·7H2O 5mg/L、MnSO4·H2O 15mg/L、Na2MoO4·2H2O 0.1mg/L、CuSO4·5H2O 0.001mg/L、CoCl·6H20.001mg/L of O and 50mg/L of chitin; the solvent of the solution C and the concentration of the solvent are KNO3 1000mg/L、MgSO4·7H2O 200mg/L、KH2PO4 100mg/L、KI 1mg/L、H3BO3 5mg/L、ZnSO4·7H2O 5mg/L、MnSO4·H2O 15mg/L、Na2MoO4·2H2O 0.1mg/L、CuSO4·5H2O 0.001mg/L、CoCl·6H20.001mg/L of O and 50mg/L of chitin; solutionSolvent of liquid D and its concentration KNO3 1000mg/L、FeSO4·7H2O(20-50mg/L)、Na2EDTA(30-60mg/L)、MgSO4·7H2O 200mg/L、KH2PO4 100mg/L、KI 1mg/L、H3BO3 5mg/L、ZnSO4·7H2O 5mg/L、MnSO4·H2O 15mg/L、Na2MoO4·2H2O 0.1mg/L、CuSO4·5H2O 0.001mg/L、CoCl·6H20.001mg/L of O and 50mg/L of chitin.
By observation, the metal nano iron particle solution in 3 parts of working solution does not agglomerate and generate no precipitate after 30 days.
Example 7
And (3) putting 28mg of nano iron in 10ml of mercaptopropionic acid, fully stirring for 15min by using a glass rod, fully dispersing nano iron particles, and then adding 9ml of solution B to prepare a nano iron particle dispersion system with the mother solution concentration of 2.8 mg/ml. Then 2 parts of the same nano-iron particle dispersion system are respectively added into 5L of the solution A and 10L of the solution C, and finally, two parts of uniform and stable working solution of nano-iron particles can be obtained.
The solvent of the solution A and the concentration ratio thereof are MgSO4·7H2O 300mg/L、KH2PO4400 mg/L、KI 8mg/L、H3BO3 10mg/L、ZnSO4·7H2O 30mg/L、MnSO4·H2O 25mg/L、Na2MoO4·2H2O 4mg/L、CuSO4·5H2O 0.04mg/L、CoCl·6H2O0.6 mg/L; the solvent of the solution B and the concentration ratio thereof are MgSO4·7H2O 300mg/L、KH2PO4300mg/L、KI 9mg/L、H3BO3 11mg/L、ZnSO4·7H2O 20mg/L、MnSO4·H2O 40mg/L、Na2MoO4·2H2O 5.5mg/L、CuSO4·5H2O 0.3mg/L、CoCl·6H20.7mg/L of O and 1000mg/L of chitin; solution C solvent and its concentration KNO3 3000mg/L、MgSO4·7H2O 400mg/L、KH2PO4 500mg/L、KI 15mg/L、H3BO3 15mg/L、ZnSO4·7H2O 50mg/L、MnSO4·H2O 50mg/L、Na2MoO4·2H2O 8mg/L、CuSO4·5H2O 0.1mg/L、CoCl·6H2O1 mg/L and chitin 1500 mg/L.
By observation, the metal nano iron particle solutions in the two working solutions do not agglomerate and generate no precipitate after 30 days.
Example 8
3.2mg of nano copper is respectively placed in 10ml of mercaptopropionic acid, the oscillation is carried out for 10min under the action of a turbine oscillator, 9ml of distilled water is added after the nano iron particles are fully dispersed, and the nano copper particle solution with the mother solution concentration of 0.32mg/ml is prepared. Then 2 parts of the same nano-iron particle dispersion system are respectively added into 10L of the solution B and the solution D, and finally, two parts of uniform and stable working solution of nano-iron particles can be obtained.
Wherein the solvent of the solution B and the concentration thereof are MgSO4·7H2O 400mg/L、KH2PO4 500mg/L、KI 15mg/L、H3BO3 15mg/L、ZnSO4·7H2O 50mg/L、MnSO4·H2O 50mg/L、Na2MoO4·2H2O 8mg/L、CuSO4·5H2O 0.1mg/L、CoCl·6H2O1 mg/L and chitin 1500 mg/L; solution D is solvent and its concentration ratio is KNO32000mg/L、FeSO4·7H2O 30mg/L、Na2EDTA45mg/L、MgSO4·7H2O 300mg/L、KH2PO4 350mg/L、KI 7mg/L、H3BO3 10mg/L、ZnSO4·7H2O 32mg/L、MnSO4·H2O 1 35mg/L、Na2MoO4·2H2O 5mg/L、CuSO4·5H2O 0.08mg/L、CoCl·6H20.6mg/L of O and 800mg/L of chitin.
By observation, the metal nano iron particle solutions in the two working solutions are not agglomerated and precipitate is not generated after 30 days.
Comparative example
2.8mg of nano-iron and 3.2mg of nano-copper are respectively prepared into a nano-iron solution with the concentration of 2.8mg/L-5.6mg/L and a nano-copper solution with the concentration of 3.2mg/L, and after the nano-iron solution and the nano-copper solution are fully dispersed by shaking of an ultrasonic cell disruptor, 3 parts of the 2 solutions are respectively added into 5L, 10L and 100L of water to prepare 6 parts of working solution.
According to observation, precipitates begin to form slowly after 6 parts of working solution are used for 2 hours, and the precipitation amount does not increase any more after 6 hours, namely the precipitates are completely precipitated.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection determined by the claims.

Claims (10)

1. A preparation method of a metal nano-iron/nano-copper particle solution is characterized by comprising the following steps:
the method comprises the following steps: placing metal nano iron/nano copper particles with the particle size of 50-100nm in a water-soluble dispersant, and stirring to prepare a metal nano iron/nano copper particle dispersion system;
step two: diluting the metal nano-iron/nano-copper particle dispersion system by using a diluent to obtain a dispersed metal nano-iron/nano-copper particle solution.
2. The method for preparing a metallic nano-iron/nano-copper particle solution according to claim 1, wherein the water-soluble dispersant is glycerol or mercaptopropionic acid.
3. The method according to claim 1, wherein the mass-to-volume ratio of the metallic nano-iron particles to the water-soluble dispersant is 2.8mg:0.1-1mL, and the mass-to-volume ratio of the metallic nano-copper particles to the water-soluble dispersant is 3.2mg:1-10 mL.
4. The method for preparing a metallic nano-iron/nano-copper particle solution according to claim 1, wherein the diluent is water or a plant growth nutrient solution.
5. The method for preparing a metallic nano-iron/nano-copper particle solution according to claim 4, wherein the plant growth nutrient solution is a solution A with water as a solvent, and the solution A comprises the following solvents in concentration: MgSO (MgSO) in vitro4·7H2O 200-400mg/L、KH2PO4100-500 mg/L、KI 1-15mg/L、H3BO35-15 mg/L、ZnSO4·7H2O5-50 mg/L、MnSO4·H2O15-50 mg/L、Na2MoO4·2H2O0.1-8mg/L、CuSO4·5H2O0.001-0.1mg/L、CoCl·6H2O0.001-1mg/L。
6. The method for preparing a metallic nano-iron/nano-copper particle solution according to claim 4, wherein the plant growth nutrient solution is a solution B with water as a solvent, and the solution B comprises the following solvents in concentration: MgSO (MgSO)4·7H2O200-400 mg/L、KH2PO4100-500 mg/L、KI 1-15mg/L、H3BO35-15 mg/L、ZnSO4·7H2O5-50 mg/L、MnSO4·H2O15-50 mg/L、Na2MoO4·2H2O0.1-8mg/L、CuSO4·5H2O0.001-0.1mg/L、CoCl·6H20.001-1mg/L of O and 50-1500mg/L of chitin.
7. The method for preparing a metallic nano-iron/nano-copper particle solution according to claim 4, wherein the plant growth nutrient solution is a solution C with water as a solvent, and the solution C comprises the following solvents in concentration: KNO31000-3000 mg/L、MgSO4·7H2O 200-400mg/L、KH2PO4100-500 mg/L、KI 1-15mg/L、H3BO35-15 mg/L、ZnSO4·7H2O 5-50mg/L、MnSO4·H2O 15-50mg/L、Na2MoO4·2H2O 0.1-8mg/L、CuSO4·5H2O 0.001-0.1mg/L、CoCl·6H20.001-1mg/L of O and 50-1500mg/L of chitin.
8. The method for preparing a metallic nano-iron/nano-copper particle solution according to claim 4, wherein the plant growth nutrient solution is a solution D with water as a solvent, and the solution D comprises the following solvents in concentration: KNO31000-3000 mg/L、FeSO4·7H2O 20-50mg/L、Na2EDTA30-60 mg/L、MgSO4·7H2O 200-400mg/L、KH2PO4100-500 mg/L、KI 1-15mg/L、H3BO35-15 mg/L、ZnSO4·7H2O 5-50mg/L、MnSO4·H2O 15-50mg/L、Na2MoO4·2H2O 0.1-8mg/L、CuSO4·5H2O 0.001-0.1mg/L、CoCl·6H20.001-1mg/L of O and 50-1500mg/L of chitin.
9. The method according to claim 1, wherein the stirring comprises shaking for 10-30min with a turbine shaker.
10. A method for preparing a metallic nano-iron/nano-copper particle working solution using the metallic nano-iron/nano-copper particle solution as defined in any one of claims 1 to 9, wherein the metallic nano-iron/nano-copper particle solution is diluted to a working concentration using a diluent pair to obtain the metallic nano-iron/nano-copper particle working solution.
CN202011577816.2A 2020-12-28 2020-12-28 Preparation method of metal nano iron/nano copper particle solution and working solution Pending CN114749656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011577816.2A CN114749656A (en) 2020-12-28 2020-12-28 Preparation method of metal nano iron/nano copper particle solution and working solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011577816.2A CN114749656A (en) 2020-12-28 2020-12-28 Preparation method of metal nano iron/nano copper particle solution and working solution

Publications (1)

Publication Number Publication Date
CN114749656A true CN114749656A (en) 2022-07-15

Family

ID=82324389

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011577816.2A Pending CN114749656A (en) 2020-12-28 2020-12-28 Preparation method of metal nano iron/nano copper particle solution and working solution

Country Status (1)

Country Link
CN (1) CN114749656A (en)

Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101880493A (en) * 2010-07-01 2010-11-10 中国科学院宁波材料技术与工程研究所 Method for preparing nano copper conductive ink
KR20120039783A (en) * 2010-10-18 2012-04-26 김명환 A mixing concentrated solution and a method of cultivation for plant with thereof
CN102802624A (en) * 2009-06-19 2012-11-28 太阳医药高级研发有限公司 Nanodispersion Of A Drug And Process For Its Preparation
CN202666019U (en) * 2012-03-01 2013-01-16 联群生技有限公司 Microcapsule containing nanometer metal liquid
CN103394699A (en) * 2013-08-19 2013-11-20 上海富大同诺环境科技有限公司 Preparation method for nano-iron particles and application thereof
CN103555049A (en) * 2013-10-24 2014-02-05 北京印刷学院 Preparation method of nano-copper conductive ink capable of realizing mass production
CN103691965A (en) * 2013-12-20 2014-04-02 华南理工大学 Preparation method for copper/silver heterojunction nano-particles
CN104254418A (en) * 2011-11-03 2014-12-31 克拉里安特国际有限公司 Method for producing a metal nanoparticle dispersion, metal nanoparticle dispersion, and use of said metal nanoparticle dispersion
CN104642385A (en) * 2015-01-07 2015-05-27 安徽瀚驰生物科技有限公司 Composite bactericide of nano copper and polyhexamethylene guanidine and processing technic
CN105237177A (en) * 2015-09-18 2016-01-13 朱上翔 Nanometer-fertilizer-added activation ionized water as nuisance-free crop cultivation nutrient solution
CN105233968A (en) * 2015-06-17 2016-01-13 陶栋梁 Method for separating nano particles of different particle sizes
CN105798320A (en) * 2014-12-31 2016-07-27 中国科学院化学研究所 Method for preparing nanometer copper powder at low temperature
CN105969760A (en) * 2016-06-29 2016-09-28 华南理工大学 Embedded nano-iron/single-microorganism composite microbial agent and preparation method thereof
CN106699319A (en) * 2015-07-29 2017-05-24 宋佰会 Nanocarbon plant nutrient solution and preparation method thereof
CN107200630A (en) * 2017-06-14 2017-09-26 芜湖飞高农业有限公司 A kind of jujube tree special fertilizer material of anti-fruit-cracking
CN107244967A (en) * 2017-06-14 2017-10-13 芜湖县花桥镇恒乐水果种植专业合作社 A kind of grape alkaline fertilizer
CN108640744A (en) * 2018-05-30 2018-10-12 安徽省百禾农业科技发展有限公司 A kind of mill water culture nutrient solution and preparation method thereof
CN108781959A (en) * 2018-05-08 2018-11-13 广德县东亭乡绘绿苗木种植家庭农场 A kind of propagation by grafiting of fingered citron and bonsai production technique
CN111446045A (en) * 2020-05-27 2020-07-24 北京康普锡威科技有限公司 Mixed-size nano copper paste and preparation method thereof
CN111821874A (en) * 2019-04-22 2020-10-27 汉能移动能源控股集团有限公司 Method for dispersing nano material
CN111872410A (en) * 2020-07-07 2020-11-03 开贝纳米科技(苏州)有限公司 Preparation method of nano platinum
CN113185360A (en) * 2021-06-15 2021-07-30 南京祥富瑞农业高科技发展有限公司 Plant nutrient solution for remarkably improving yield and efficiency of plants and preparation method thereof
CN115417717A (en) * 2022-09-01 2022-12-02 北京慧光生物科技有限公司 Hydroponic planting composite nutrient solution and preparation method thereof

Patent Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102802624A (en) * 2009-06-19 2012-11-28 太阳医药高级研发有限公司 Nanodispersion Of A Drug And Process For Its Preparation
CN101880493A (en) * 2010-07-01 2010-11-10 中国科学院宁波材料技术与工程研究所 Method for preparing nano copper conductive ink
KR20120039783A (en) * 2010-10-18 2012-04-26 김명환 A mixing concentrated solution and a method of cultivation for plant with thereof
CN104254418A (en) * 2011-11-03 2014-12-31 克拉里安特国际有限公司 Method for producing a metal nanoparticle dispersion, metal nanoparticle dispersion, and use of said metal nanoparticle dispersion
CN202666019U (en) * 2012-03-01 2013-01-16 联群生技有限公司 Microcapsule containing nanometer metal liquid
CN103394699A (en) * 2013-08-19 2013-11-20 上海富大同诺环境科技有限公司 Preparation method for nano-iron particles and application thereof
CN103555049A (en) * 2013-10-24 2014-02-05 北京印刷学院 Preparation method of nano-copper conductive ink capable of realizing mass production
CN103691965A (en) * 2013-12-20 2014-04-02 华南理工大学 Preparation method for copper/silver heterojunction nano-particles
CN105798320A (en) * 2014-12-31 2016-07-27 中国科学院化学研究所 Method for preparing nanometer copper powder at low temperature
CN104642385A (en) * 2015-01-07 2015-05-27 安徽瀚驰生物科技有限公司 Composite bactericide of nano copper and polyhexamethylene guanidine and processing technic
CN105233968A (en) * 2015-06-17 2016-01-13 陶栋梁 Method for separating nano particles of different particle sizes
CN106699319A (en) * 2015-07-29 2017-05-24 宋佰会 Nanocarbon plant nutrient solution and preparation method thereof
CN105237177A (en) * 2015-09-18 2016-01-13 朱上翔 Nanometer-fertilizer-added activation ionized water as nuisance-free crop cultivation nutrient solution
CN105969760A (en) * 2016-06-29 2016-09-28 华南理工大学 Embedded nano-iron/single-microorganism composite microbial agent and preparation method thereof
CN107200630A (en) * 2017-06-14 2017-09-26 芜湖飞高农业有限公司 A kind of jujube tree special fertilizer material of anti-fruit-cracking
CN107244967A (en) * 2017-06-14 2017-10-13 芜湖县花桥镇恒乐水果种植专业合作社 A kind of grape alkaline fertilizer
CN108781959A (en) * 2018-05-08 2018-11-13 广德县东亭乡绘绿苗木种植家庭农场 A kind of propagation by grafiting of fingered citron and bonsai production technique
CN108640744A (en) * 2018-05-30 2018-10-12 安徽省百禾农业科技发展有限公司 A kind of mill water culture nutrient solution and preparation method thereof
CN111821874A (en) * 2019-04-22 2020-10-27 汉能移动能源控股集团有限公司 Method for dispersing nano material
CN111446045A (en) * 2020-05-27 2020-07-24 北京康普锡威科技有限公司 Mixed-size nano copper paste and preparation method thereof
CN111872410A (en) * 2020-07-07 2020-11-03 开贝纳米科技(苏州)有限公司 Preparation method of nano platinum
CN113185360A (en) * 2021-06-15 2021-07-30 南京祥富瑞农业高科技发展有限公司 Plant nutrient solution for remarkably improving yield and efficiency of plants and preparation method thereof
CN115417717A (en) * 2022-09-01 2022-12-02 北京慧光生物科技有限公司 Hydroponic planting composite nutrient solution and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
严安;刘泽华;苗冉冉;: "不同分散剂、不同分散方法对纳米TiO_2分散性能的影响", 杭州化工, no. 03 *

Similar Documents

Publication Publication Date Title
Su et al. Magnetic sulfide-modified nanoscale zerovalent iron (S-nZVI) for dissolved metal ion removal
Subramaniyam et al. Chlorococcum sp. MM11—a novel phyco-nanofactory for the synthesis of iron nanoparticles
Reddy et al. Synthesis of silver nanoparticles using surfactin: A biosurfactant as stabilizing agent
Mishra et al. Impact of metal nanoparticles on the plant growth promoting rhizobacteria
Armendariz et al. Size controlled gold nanoparticle formation by Avena sativa biomass: use of plants in nanobiotechnology
US7514600B2 (en) Stabilizing solutions for submicronic particles, methods for making the same and methods of stabilizing submicronic particles
CN101954488B (en) Method for preparing zerovalent iron nanoparticles by improved liquid phase reduction method
Zhu et al. Synthesis and optical properties of thiol functionalized CdSe/ZnS (core/shell) quantum dots by ligand exchange
US9216455B2 (en) Methods for producing silver nanoparticles
CN109173977A (en) A kind of preparation method and applications of calcium carbonate load nano zero-valence iron composite material
CN110227815A (en) A kind of preparation method of water dispersible nanowires of gold
Liu et al. Biosynthesis of high-purity γ-MnS nanoparticle by newly isolated Clostridiaceae sp. and its properties characterization
Ghodake et al. One-step green synthesis of gold nanoparticles using casein hydrolytic peptides and their anti-cancer assessment using the DU145 cell line
Li et al. Suspension stability and aggregation of multi-walled carbon nanotubes as affected by dissolved organic matters extracted from agricultural wastes
de Lima Barizão et al. Nanomagnetic approach applied to microalgae biomass harvesting: advances, gaps, and perspectives
CN109382512A (en) A kind of preparation method of flower-like nanometer aluminium powder self-assembled structures
Zhang et al. The role of humic acid in stabilizing fullerene (C60) suspensions
Chi et al. Nanoscale imaging of the simultaneous occlusion of nanoplastics and glyphosate within soil minerals
CN114749656A (en) Preparation method of metal nano iron/nano copper particle solution and working solution
Sun et al. Influence of sulfur fertilization on CuO nanoparticles migration and transformation in soil pore water from the rice (Oryza sativa L.) rhizosphere
Ahmad et al. Quantitative growth evolution of gold nanoparticles synthesized using aqueous Elaeis guineensis (oil palm) leaves extract
Yu et al. Aggregation and stability of selenium nanoparticles: Complex roles of surface coating, electrolytes and natural organic matter
Su et al. Cu (OH) 2 nanorods undergo sulfidation in water: In situ formation of CuO nanorods as intermediates and enhanced toxicity to Escherichia coli
Morales-Sánchez et al. Synthesis of silver nanoparticles using albumin as a reducing agent
Singh et al. Nitrate Reductase mediated synthesis of surface passivated nanogold as broad-spectrum antibacterial agent

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination