Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing nano-zinc oxide sol and zinc oxide submicron spheres

A nano-zinc oxide, zinc oxide technology, applied in zinc oxide/zinc hydroxide, nanotechnology, nanotechnology and other directions, can solve the problems of complex reaction system and preparation process, achieve good compatibility, simple equipment, convenient production and processing Effect

Inactive Publication Date: 2014-12-03
JINAN UNIVERSITY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Diethylene glycol is used in this invention, and the reaction system and preparation process are relatively complicated

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
  • Method for preparing nano-zinc oxide sol and zinc oxide submicron spheres
  • Method for preparing nano-zinc oxide sol and zinc oxide submicron spheres
  • Method for preparing nano-zinc oxide sol and zinc oxide submicron spheres

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Add 1.0 mmol of zinc acetate dihydrate to 40 mL of polyethylene glycol 200, heat to 180 ° C, and react for 30 min with stirring to form a white turbid liquid.

[0041] (2) Cool the above reaction system to room temperature, centrifuge at 25°C and 11000rpm for 20min to obtain white precipitate and sol clear liquid, the obtained sol clear liquid is nano-zinc oxide sol with a particle size of 10-80nm, keep the sol clear liquid at 30°C spare.

[0042] (3) Wash the white precipitate three times with deionized water, put the washed precipitate in an oven, and dry at 80°C to obtain zinc oxide submicron spheres with a particle size of 130-640nm.

[0043] The characterization of the prepared nano zinc oxide sol and zinc oxide submicron spheres is as follows: Figure 1~6 As shown, the particle diameter of the nano zinc oxide sol is 10-80 nm, and the particle diameter of the zinc oxide submicron sphere is 130-640 nm.

Embodiment 2

[0045] (1) Add 1.0 mmol of zinc acetate dihydrate to 40 mL of polyethylene glycol 400, heat to 180 ° C, and react for 30 min under stirring to form a white turbid liquid.

[0046] (2) Cool the above reaction system to room temperature, centrifuge at 25°C and 11000rpm for 20min to obtain white precipitate and sol clear liquid, the obtained sol clear liquid is nano-zinc oxide sol with a particle size of 20-90nm, keep the sol clear liquid at 30°C spare.

[0047] (3) Wash the white precipitate 4 times with deionized water, put the washed precipitate into an oven, and dry at 80°C to obtain zinc oxide submicron spheres with a particle size of 225-685nm.

[0048] The characterization of the prepared zinc oxide submicron spheres is as follows: Figure 7 shown.

Embodiment 3

[0050] (1) Add 1.0 mmol of zinc acetate dihydrate to 40 mL of polyethylene glycol 600, heat to 180 ° C, and react for 30 min under stirring to form a white turbid liquid.

[0051] (2) Cool the above reaction system to room temperature, centrifuge at 25°C and 11000rpm for 20min to obtain white precipitate and sol clear liquid, the obtained sol clear liquid is nano-zinc oxide sol with a particle size of 30-110nm, keep the sol clear liquid at 30°C spare.

[0052] (3) Wash the white precipitate three times with deionized water, put the washed precipitate into an oven, and dry at 80°C to obtain zinc oxide submicron spheres with a particle size of 380-775nm.

[0053] The characterization of the prepared zinc oxide submicron spheres is as follows: Figure 8 shown.

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 diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a nano-zinc oxide sol and zinc oxide submicron spheres, and belongs to the technical field of semiconductor oxide nano materials. The method comprises the steps of: adding a zinc salt into polyethylene glycol, heating to 120-210 DEG C, reacting for 5 minutes-6 hours, cooling the reaction system to 20-60 DEG C, centrifuging to obtain sol liquor which is the nano-zinc oxide sol, and washing and drying the precipitate which is obtained through centrifugation to obtain the zinc oxide submicron spheres. The grain size of the obtained nano-zinc oxide sol is between 5 and 170 nanometers, and the grain sizes of the zinc oxide submicron spheres are between 10 and 1000 nanometers. The method is simple to operate and is pollution-free, the grain sizes of the obtained products can be controlled, and the method is easy for industrial production. The prepared nano-zinc oxide sol and zinc oxide submicron spheres have wide application prospects.

Description

technical field [0001] The invention relates to the technical field of semiconductor oxide nanomaterials, in particular to a preparation method of nanometer zinc oxide sol and zinc oxide submicron spheres. Background technique [0002] ZnO material has become a research hotspot for scientists due to its suitable bandgap width, high exciton binding energy, low price, excellent radiation resistance, environmental protection and non-toxicity, and has been favored by optoelectronic researchers. of favor. The rich nano-morphology makes ZnO become the object of people's attention. Due to its volume effect, surface effect, quantum size effect, dielectric confinement effect and macroscopic quantum tunneling effect, nanomaterials show many advantages that bulk materials do not have. Singular light, heat, magnetic and chemical properties. As the size of nanoparticles decreases, their surface tension and surface energy increase, making most of the atoms extremely unstable and easily ...

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 Patents(China)
IPC IPC(8): C01G9/02B82Y30/00
Inventor 谢新媛李丽云郑文杰孟建新
Owner JINAN UNIVERSITY