Preparation method of silver phosphate/graphene nanocomposite

A nanocomposite material, graphene technology, applied in the field of nanocomposite materials and photocatalysis, can solve problems such as poor stability and low photocatalytic efficiency, and achieve the effects of improving stability, improving photoelectric conversion efficiency, and inhibiting photocorrosion

Inactive Publication Date: 2014-02-26
ZHEJIANG SCI-TECH UNIV
View PDF2 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the above problems and provide a method for preparing silver phosp

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 silver phosphate/graphene nanocomposite
  • Preparation method of silver phosphate/graphene nanocomposite
  • Preparation method of silver phosphate/graphene nanocomposite

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1:

[0018] Dissolve 25 mg of graphene oxide in 50 ml of deionized water, and disperse it uniformly by ultrasonic to obtain a graphene oxide dispersion with a concentration of 0.5 mg / ml; weigh 0.0711 g of disodium hydrogen phosphate solid and dissolve it in deionized water. Obtain a disodium hydrogen phosphate solution with a concentration of 0.01 mol / L; weigh 0.2548 g of silver nitrate solid and dissolve it in the above graphene oxide dispersion, where the concentration of silver nitrate is 0.03 mol / L, and magnetically stir to obtain a precursor solution A. Add 50 ml of the above disodium hydrogen phosphate solution slowly to 50 ml of precursor solution A under continuous magnetic stirring and dark conditions. After the addition is complete, the mixed solution will continue to be stirred at room temperature for 0.5 hours. After centrifugation, use deionized water and anhydrous ethanol for repeated centrifugation and cleaning for many times, and vacuum dry; weigh 0...

Example Embodiment

[0020] Example 2:

[0021] Dissolve 25 mg of graphene oxide in 50 ml of deionized water and disperse it uniformly by ultrasonic to obtain a graphene oxide dispersion with a concentration of 0.5 mg / ml; weigh 0.3555 g of disodium hydrogen phosphate solid and dissolve it in deionized water. Obtain a disodium hydrogen phosphate solution with a concentration of 0.05 mol / L; weigh 1.274 g of silver nitrate solid and dissolve it in the above graphene oxide dispersion, where the concentration of silver nitrate is 0.15 mol / L, and magnetically stir to obtain a precursor solution A. Add 50 ml of the above disodium hydrogen phosphate solution slowly to 50 ml of precursor solution A under continuous magnetic stirring and dark conditions. After the addition is complete, the mixed solution is stirred at room temperature for 1 hour to remove the precipitate After centrifugation, deionized water and anhydrous ethanol were used for repeated centrifugation and cleaning several times, and then vacuum...

Example Embodiment

[0023] Example 3:

[0024] Dissolve 25 mg of graphene oxide in 50 ml of deionized water and disperse uniformly by ultrasonic to obtain a graphene oxide dispersion with a concentration of 0.5 mg / ml; weigh 0.7107 g of disodium hydrogen phosphate solid and dissolve in deionized water. After uniform dispersion by ultrasonic Obtain a disodium hydrogen phosphate solution with a concentration of 0.1 mol / L; weigh 2.548 g of silver nitrate solid and dissolve it in the above graphene oxide dispersion, where the concentration of silver nitrate is 0.3 mol / L, and magnetically stir to obtain a precursor solution A. Add 50 ml of the above disodium hydrogen phosphate solution slowly to 50 ml of precursor solution A under continuous magnetic stirring and dark conditions. After the addition is complete, the mixed solution is stirred at room temperature for 2 hours, and the precipitate After centrifugation, use deionized water and anhydrous ethanol for repeated centrifugation and cleaning for many ...

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
Concentrationaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method of a silver phosphate/graphene nanocomposite. The method has the advantages that a light-assisted reducing process is adopted, the process is simple, and the cost is low, so that the method is suitable for large-scale production and industrial production. The prepared silver phosphate/graphene nanocomposite consists of silver phosphate nanoparticles and graphene nanosheets, wherein the graphene nanosheets cover the surfaces of the spherical silver phosphate nanoparticles with sizes of about 200nm, and the two are in close interface contact. The silver phosphate/graphene nanocomposite disclosed by the invention is a novel visible-light-driven photocatalyst which is more efficient and stable.

Description

technical field [0001] The invention relates to a preparation method of a silver phosphate / graphene nanocomposite material, belonging to the technical field of nanocomposite materials and photocatalysis. Background technique [0002] With the excessive exploitation of natural resources and the continuous deterioration of the natural environment, human society is facing increasingly serious problems such as energy shortage and environmental pollution. Due to the low energy consumption required, simple operation, non-toxic and harmless, and no secondary pollution, photocatalytic technology has broad application prospects in the development and utilization of solar energy and sewage treatment. Semiconductor nanomaterials have a photoelectric conversion effect and are the basic constituent materials of photocatalysts. However, most of the photocatalysts used in practice, such as titanium dioxide and zinc oxide, are wide bandgap semiconductors, and their light absorption waveleng...

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
IPC IPC(8): B01J27/18
Inventor 崔灿王亚平梁大宇陆冰清杨亚娜应蓓丽
Owner ZHEJIANG SCI-TECH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap