Composite material based on multilayer graphene as well as preparation method and application of composite material
A technology of multi-layer graphene and composite materials, which is applied in the field of air purification, can solve the problems of incompleteness, slow adsorption rate, and inconspicuous removal effect, and achieve the effects of low cost, improved adsorption capacity, and inconspicuous removal effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment approach
[0035] (1) The multi-layer graphene accounts for 0.5wt% to 5wt% of the total mass of the composite material, which can make the composite material have better adsorption performance.
[0036] (2) described multilayer graphene preferably adopts the graphene powder that the physical exfoliation method in the prior art makes, and average sheet is 2~8 layers, and thickness is 1~5 nanometers, and sheet diameter is 0.5~15 microns, The specific surface area is 20~500m 2 / g, which can not only ensure that the multilayer graphene-based composite has good adsorption performance, but also has low cost and good economic benefits.
[0037] (3) The polymer material is at least one of polyvinyl alcohol, polyurethane, silane coupling agent, carboxymethyl cellulose, these polymer materials can carry multi-layer graphene, and can form high Molecular polymer films, so that multi-layer graphene can be supported on activated carbon, and these polymer materials themselves have adsorption propertie...
Embodiment 1
[0064] A kind of composite material based on multilayer graphene, its preparation method comprises the following steps:
[0065] Step b1, dissolving 1 g of polymer material in 199 g of deionized water to prepare a 0.5 wt % polymer material solution.
[0066] Step b2: Take 108.9 g of the polymer material solution prepared in step b1, and disperse 1.1 g of multilayer graphene in the polymer material solution, thereby preparing a 1 wt % multilayer graphene dispersion.
[0067] Step b3, immerse 9.79453 g of activated carbon in the multilayer graphene dispersion prepared in step b2 for 3 hours, take it out and dry it at 80° C., so as to prepare the initial composite material.
[0068]Step b4, activate the initial composite material prepared in step b3 for 3h in a vacuum environment at 120° C. to obtain a composite material based on multilayer graphene, and its scanning electron microscope photo (ie SEM image) is as follows figure 2 shown.
Embodiment 2
[0070] A kind of composite material based on multilayer graphene, its preparation method comprises the following steps:
[0071] Step c1, dissolving 1 g of polymer material in 199 g of deionized water to prepare a 0.5 wt % polymer material solution.
[0072] Step c2, take 105.1 g of the polymer material solution prepared in step c1, and disperse 1.6 g of multilayer graphene in the polymer material solution, thereby preparing a multilayer graphene dispersion with a concentration of about 1.5 wt % .
[0073] Step c3, immerse 10.82081 g of activated carbon in the multilayer graphene dispersion prepared in step c2 for 3 hours, take it out and dry it at 80° C., so as to prepare the initial composite material.
[0074] Step c4, activate the initial composite material prepared in step c3 in a vacuum environment at 120° C. for 3 h, so as to obtain a composite material based on multilayer graphene, and its scanning electron microscope photo (ie SEM image) is as follows image 3 shown...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More