Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of Ag/ZnFe2O4/Fe3O4 heterogeneous magnetic microspheres with controllable morphology

A technology of magnetic microspheres and znfe2o4, which is applied in the field of photocatalytic materials, can solve the problems of incomplete and effective treatment of dye wastewater, and achieve the effect of good dispersion and stable and uniform powder

Active Publication Date: 2020-01-10
HEFEI UNIV
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As traditional physical-chemical methods can no longer be completely effective in treating dye wastewater, people have found that photocatalytic oxidation can oxidize and reduce dye wastewater into harmless substances.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of Ag/ZnFe2O4/Fe3O4 heterogeneous magnetic microspheres with controllable morphology
  • Preparation method of Ag/ZnFe2O4/Fe3O4 heterogeneous magnetic microspheres with controllable morphology
  • Preparation method of Ag/ZnFe2O4/Fe3O4 heterogeneous magnetic microspheres with controllable morphology

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] A shape-controllable Ag / ZnFe 2 o 4 / Fe 3 o 4 The preparation method of heterogeneous magnetic microspheres comprises the following steps:

[0024] (1) Using crystalline ferric chloride, crystalline ferric nitrate, and crystalline zinc acetate as raw materials, glycine or L-aspartic acid as a complexing agent, and ethylene glycol as a solvent, the raw materials and complexing agent are dissolved in a solvent to form Mix the solution, then place the mixed solution on a magnetic stirrer to stir, add the stirred solution into the hydrothermal reaction kettle, and then use 5ml of ethylene glycol to rinse the beaker and pour it into the reaction kettle;

[0025] (2) Put the reaction kettle in step (1) into a constant temperature blast oven, cool the reaction kettle after the reaction is over, centrifuge the powder generated in the reaction kettle with a centrifuge, and then use absolute ethanol and deionized Alternately washed with water several times, and then put the wa...

Embodiment 2

[0041] A shape-controllable Ag / ZnFe 2 o 4 / Fe 3 o 4 The preparation method of heterogeneous magnetic microspheres comprises the following steps:

[0042] (1) Weigh 0.900g ferric chloride hexahydrate, 2.0g crystalline sodium acetate and 0.678g zinc acetate dihydrate, so that the mass ratio of iron source and zinc source is 1:1, pour them into a beaker, add 0.5 g L-aspartic acid and 15mL ethylene glycol, mix it into a solution, and put it on a magnetic stirrer to stir for 30min. In the kettle, rinse the beaker with 5mL of ethylene glycol and pour it into the reaction kettle;

[0043] (2) Cover the reaction kettle and put it in a constant temperature blast oven, set the temperature to 200°C, and react for 10 hours; after the reaction is completed, the reaction kettle is cooled and after that, take out the reaction kettle, and centrifuge the powder generated after the reaction with a centrifuge, And wash alternately several times with absolute ethanol and deionized water resp...

Embodiment 3

[0047] A shape-controllable Ag / ZnFe 2 o 4 / Fe 3 o 4 The preparation method of heterogeneous magnetic microspheres comprises the following steps:

[0048] (1) Weigh 2.107g crystalline ferric nitrate, 2.0g crystalline sodium acetate and 0.280g zinc acetate dihydrate, so that the mass ratio of iron source and zinc source is 4:1, pour them into a beaker, add 0.25g Mix L-aspartic acid and 15mL ethylene glycol to form a homogeneous solution, and put it on a magnetic stirrer to stir for 30min. When stirring, the solution is reddish brown. In the kettle, rinse the beaker with 5mL of ethylene glycol and pour it into the reaction kettle;

[0049] (2) Cover the reaction kettle and put it in a constant temperature blast oven, set the temperature to 200°C, and react for 10 hours; after the reaction is completed, the reaction kettle is cooled and after that, take out the reaction kettle, and centrifuge the powder generated after the reaction with a centrifuge, And wash alternately seve...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of Ag / ZnFe2O4 / Fe3O4 heterogeneous magnetic microsphere with controllable morphology. The preparation method includes the steps of: (1) taking crystalline ferric chloride or crystalline ferric nitrate and crystalline zinc acetate as the raw materials, adopting glycine or L-aspartic acid as the complexing agent and taking ethylene glycol as the solvent, mixing the substances, then putting the mixture on a magnetic stirrer, adding the stirred solution into a hydrothermal reaction kettle, then flushing a beaker with ethylene glycol, and conducting pouring into the reaction kettle; (2) putting the reaction kettle into a constant-temperature blast oven, centrifuging the powder generated in the reaction kettle by a centrifugal machine at the end of thereaction, then respectively using anhydrous ethanol and deionized water for alternate washing repeatedly, and then putting the washed powder into a vacuum drying oven for drying; and (3) pouring silver nitrate, glucose and ZnFe2O4 / Fe3O4 composite powder into the beaker, adding deionized water for dissolving, stirring the substances uniformly, then putting the beaker on an ultrasonic cleaner for cleaning, then utilizing deionized water and anhydrous ethanol for mixed centrifugal washing, and then performing drying, thus obtaining Ag / ZnFe2O4 / Fe3O4 multi-component nano-powder.

Description

technical field [0001] The invention relates to the technical field of photocatalytic materials, in particular to a shape-controllable Ag / ZnFe 2 o 4 / Fe 3 o 4 Preparation method of heterogeneous magnetic microspheres. Background technique [0002] As traditional physical-chemical methods can no longer completely and effectively treat dye wastewater, it has been found through research that photocatalytic oxidation can oxidize and reduce dye wastewater into harmless substances. Therefore, photocatalytic treatment of dye wastewater has attracted people's attention. Magnetic Nano Ag / ZnFe 2 o 4 / Fe 3 o 4 The multi-component powder is small in size and large in specific surface area, and it can be used as a catalyst carrier to increase the contact area of ​​the catalytic reaction and make the catalytic performance more significant. Contents of the invention [0003] The purpose of the present invention is to provide a shape controllable Ag / ZnFe 2 o 4 / Fe 3 o 4 A pre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89B01J35/08B01J35/10
CPCB01J23/8953B01J35/23B01J35/33B01J35/51B01J35/613B01J35/39
Inventor 谢劲松盛新宇黄强汤俊宇王淑芬赵娣芳
Owner HEFEI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com