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

Graphene composite photocatalytic aerogel with hierarchical porous structure and preparation method thereof

A graphene aerogel, graphene composite technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes and other directions, can solve the problems of insufficient adsorption capacity, complex synthesis process, single pore structure, etc. Achieve the effect of prolonging the adsorption saturation time, simple synthesis process and mild reaction conditions

Active Publication Date: 2017-11-07
南通大学技术转移中心有限公司
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a graphene composite photocatalytic airgel with a multi-level pore structure and a preparation method thereof, so as to solve the existing graphene aerogels in the background art with single pore structure, insufficient adsorption capacity, and easy Problems such as secondary pollution, complex synthesis process, and harsh conditions

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
  • Graphene composite photocatalytic aerogel with hierarchical porous structure and preparation method thereof
  • Graphene composite photocatalytic aerogel with hierarchical porous structure and preparation method thereof
  • Graphene composite photocatalytic aerogel with hierarchical porous structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] specific implementation plan

[0025] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be further described below.

[0026] In this example, a graphene composite photocatalytic airgel with a hierarchical porous structure is proposed. The graphene composite photocatalytic airgel has a layered structure and a three-dimensional structure, and has macropores, mesopores and microporous hierarchical pore structure; the graphene composite photocatalytic airgel includes graphene aerogel, nano-titanium dioxide and activated carbon fiber, wherein, the nano-titanium dioxide and activated carbon fiber are uniformly dispersed in the graphite of large-pore structure ene airgel interior.

[0027] In this embodiment, the diameter of the macropore is greater than 50 nm, the diameter of the mesopore is greater than or equal to 2 nm and less than or equal to 50 nm, and the diameter of th...

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
pore sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides graphene composite photocatalytic aerogel with a hierarchical porous structure and a preparation method thereof. The graphene composite photocatalytic aerogel has a lamellar structure and a three-dimensional structure and also has the hierarchical porous structure with a macropore, a mesopore and a micropore. An adsorption effect of graphene aerogel is combined with a photocatalysis effect of titanium dioxide, pollutants adsorbed to pores in the graphene aerogel and on the surface of the graphene aerogel are rapidly degraded by utilizing a photocatalysis effect of nano TiO2 and the graphene aerogel is generated in situ, so that the adsorption saturation time of the graphene aerogel is prolonged and the decontamination effect is greatly improved. The hierarchical porous structure in the composite graphene aerogel can be relatively conveniently regulated and controlled according to actual application requirements through changing types and adding amounts of added active carbon fibers, so that the universality that the graphene composite photocatalytic aerogel is applicable to different pollutants is improved. A whole set of synthesis process is simple and stirring is not needed in a chemical reduction in-situ self-assembling process; reaction conditions are moderate.

Description

technical field [0001] The invention belongs to the field of airgel preparation, in particular to a graphene composite photocatalytic airgel and a preparation method thereof. Background technique [0002] Graphene is a carbon atom sp 2 The hexagonal honeycomb structure two-dimensional atomic crystal formed by hybridization, its special two-dimensional structure makes it have excellent performance in many aspects such as electrical conductivity and thermal conductivity. However, graphene two-dimensional materials tend to agglomerate and accumulate due to the π-π interaction, resulting in reduced specific surface area, increased resistance, and greatly reduced performance, which limits the application of graphene to a certain extent. Graphene airgel (grapheneaerogel, GA) is a nanomaterial with a unique three-dimensional structure formed by using two-dimensional graphene as a building unit through curling and stacking between nanosheets, which can not only solve the problem of...

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): B01J21/18B01J35/10
CPCB01J21/18B01J35/23B01J35/39B01J35/643B01J35/651B01J35/647B01J35/615
Inventor 刘其霞张倩林志坤姚理荣季涛高强倪朝辉
Owner 南通大学技术转移中心有限公司
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