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

Preparation method and application for graphene multi-metal composite material

A technology of multiple metals and composite materials, applied in the direction of graphene, nanotechnology for materials and surface science, non-metallic elements, etc., can solve the problems of high energy consumption, low reaction rate, low removal rate of COD and TOC, etc. To achieve the effect of simple process, not easy to reunite, and fast processing speed

Inactive Publication Date: 2019-07-16
SHANGHAI UNIV
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has some limitations. In practical applications, it needs to heat a large water area, which requires high energy consumption, and the reaction rate is low, and the removal rate of COD and TOC is low. In addition, free radicals are generated in the process combined with thermal activation, and there are disinfection by-products. the risk of

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 and application for graphene multi-metal composite material
  • Preparation method and application for graphene multi-metal composite material
  • Preparation method and application for graphene multi-metal composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1: a kind of preparation method of graphene multiple metal composite material, concrete steps are as follows:

[0049] (1) Graphene oxide is added in 200mL solvent (water) and carry out ultrasonic dispersion treatment 60min to obtain graphene oxide dispersion liquid; Wherein the concentration of graphene oxide in the graphene oxide dispersion liquid is 5g / L;

[0050] (2) Dissolving reducing agent (hydrazine hydrate), alkali (sodium hydroxide), metal salt (a mixture of divalent metal salt (magnesium nitrate) and trivalent metal salt (aluminum nitrate)) in step (1) graphene oxide A mixed solution is obtained in the dispersion; wherein the mass ratio of the reducing agent (hydrazine hydrate) to graphene oxide is 10:1; the molar concentration of the alkali (sodium hydroxide) in the mixed solution is 4mol / L; the divalent metal salt in the mixed solution The molar concentration of (magnesium nitrate) is 60mmol / L, and the molar concentration of trivalent metal salt ...

Embodiment 2

[0055] Embodiment 2: the preparation method of the present embodiment graphene multiple metal composite material, concrete steps are as follows:

[0056] (1) Graphene oxide is added in 200mL solvent (water:methanol (v / v)=1:4) and carry out ultrasonic dispersion treatment 60min to obtain graphene oxide dispersion liquid; Wherein graphene oxide dispersion liquid in graphene oxide dispersion liquid The concentration is 1g / L;

[0057] (2) Dissolving reducing agent (sodium borohydride), alkali (sodium hydroxide), metal salt (a mixture of divalent metal salt (magnesium nitrate) and trivalent metal salt (aluminum nitrate)) in step (1) graphite oxide Obtain mixed solution in ene dispersion liquid; Wherein the mass ratio of sodium borohydride and graphene oxide is 0.1:1; The molar concentration of alkali (sodium hydroxide) in mixed solution is 1mol / L; Divalent metal salt (nitric acid) in mixed solution The molar concentration of magnesium) is 30mmol / L, and the molar concentration of t...

Embodiment 3

[0060] Embodiment 3: the preparation method of graphene multi-element metal composite material of the present embodiment, concrete steps are as follows:

[0061] (1) Graphene oxide is added in 200mL solvent (water: ethanol (v / v)=1:10) and carry out ultrasonic dispersion treatment 60min and obtain graphene oxide dispersion liquid; Wherein graphene oxide dispersion liquid in graphene oxide dispersion liquid The concentration is 4g / L;

[0062] (2) Dissolving reducing agent (urea), alkali (sodium hydroxide), metal salt (a mixture of divalent metal salt (magnesium nitrate) and trivalent metal salt (aluminum nitrate)) in step (1) graphene oxide dispersion Obtain mixed solution in liquid; Wherein the mass ratio of urea and graphene oxide is 8:1; The molar concentration of alkali (sodium hydroxide) in mixed solution is 1mol / L; The molar amount of divalent metal salt (magnesium nitrate) in mixed solution Concentration is 30mmol / L, and the molar concentration of trivalent metal salt (a...

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

No PUM Login to View More

Abstract

The invention discloses a preparation method and an application for a graphene multi-metal composite material, belonging to the technical field of graphene multi-metal composite materials. The preparation method provided by the invention comprises the following steps: adding graphene oxide into a solvent, and carrying out ultrasonic dispersion treatment for 1 to 2 h so as to obtain a graphene oxide dispersion; dissolving a reducing agent, alkali and metal salt into the graphene oxide dispersion so as to obtain a mixed solution; and subjecting the mixed solution to a high-temperature hydrothermal reaction for 12 to 24 h, carrying out cooling to a room temperature, carrying out centrifuging treatment, removing a supernatant liquid, washing a solid with deionized water, and carrying out drying so as to obtain the graphene multi-metal composite material. According to the invention, by utilization of adjustment and control of the loading concentration and the particle size of a nano-sized multi-metal compound, nano-sized catalytic sites are loaded onto the surface of graphene, so a polymetallic compound loaded by a material has the advantages of high dispersion, uniform morphology, insusceptibility to agglomeration and reinforced catalytic performance; and activation of peroxides and inhibition of generation of disinfection by-products can be simultaneously realized, and the degradation ability of a disinfectant to organic matters is greatly enhanced.

Description

technical field [0001] The invention relates to a preparation method and application of a graphene multi-element metal composite material, and belongs to the technical field of graphene multi-element metal composite materials. Background technique [0002] In our daily life, water is indispensable, and the technology of water treatment is also constantly improving. Among them, the removal of organic matter has always been a research hotspot. As an oxidizing agent, peroxide has high water solubility, easy storage, and Stability and other characteristics are more and more widely used in the field of advanced oxidation technology. [0003] Specific to the removal process of actual organic matter, taking persulfate as an example, persulfate ionizes in water to produce S 2 o 8 2- ion, S 2 o 8 2- The redox potential (relative to a standard hydrogen electrode) of about E Θ =2.01V, between common oxidizing agent H 2 o 2 (E Θ =1.77V) and O 3 (E Θ =2.07V); due to the lower...

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): C02F1/72C02F1/28C01B32/184C01B32/194B82Y30/00C02F101/30
CPCB82Y30/00C02F1/283C02F1/722C02F2101/30C01B32/184C01B32/194
Inventor 苏青青韩绍弘叶辉黄鑫郦春蓉周吉峙
Owner SHANGHAI 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