Preparation method of super-hydrophilic super-oleophilic three-dimensional graphene foam material

A graphene foam and super lipophilic technology, applied in ceramic products, other household utensils, household utensils, etc., to achieve high-efficiency adsorption and enrichment, and high mechanical properties

Inactive Publication Date: 2016-07-13
XIAMEN HUAXIA UNIV
View PDF3 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the reports on the surface wettability of three-dimensional graphene are single-wetting hydrophobic or superhydrophobic three-dimensional graphene. and hydrophobic interaction, irreversible agglomeration and stacking occurred, but there is no report on the three-dimensional graphene foam material with both hydrophilic and lipophilic double wettability

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 super-hydrophilic super-oleophilic three-dimensional graphene foam material
  • Preparation method of super-hydrophilic super-oleophilic three-dimensional graphene foam material
  • Preparation method of super-hydrophilic super-oleophilic three-dimensional graphene foam material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] A kind of superhydrophilic and superlipophilic three-dimensional graphene foam material preparation method of the present invention comprises the following steps:

[0028] 1) Preparation of graphene oxide:

[0029] Using the classic HummersandOffema method to prepare graphene oxide from natural graphite powder to obtain a dispersed graphene oxide aqueous solution;

[0030] 2) Preparation of superhydrophilic and superoleophilic three-dimensional graphene foam materials:

[0031] Put the graphene oxide aqueous solution obtained in step 1) into the reaction kettle, and drop the corresponding dose of phytic acid solution, insert the reaction kettle into a stainless steel jacket, heat it in an oven, keep it at 180oC, and cool it down naturally after 12 hours of reaction. room temperature; the product was freeze-dried for 24 hours to obtain a cylindrical phytic acid-doped super-hydrophilic and super-oleophilic three-dimensional graphene foam material.

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 of a super-hydrophilic super-oleophilic three-dimensional graphene foam material.The preparation method includes following steps: 1), adopting a classic Hummers and Offema method to prepare oxidized graphene from natural graphene powder to obtain a dispersive oxidized graphene water solution; 2), placing the oxidized graphene water solution obtained in the step 1) in a reaction kettle, dropwise adding a phytic acid solution in corresponding dosage, embedding the reaction kettle in a stainless steel jacket, disposing the stainless steel jacket in an oven for heating, maintaining 180 DEG C, reacting for 12 h, and naturally cooling to room temperature; freeze-drying a product for 24 h to obtain a cylindrical phytic acid doped super-hydrophilic super-oleophilic three-dimensional graphene foam material.The three-dimensional graphene foam material obtained by the preparation method has special property of zero contact angle to water and oil solutions, is efficient in adsorption and gathering of water, various oil liquids and various organic liquids and can be recycled through simple thermal treatment.

Description

technical field [0001] The invention relates to a method for preparing a superhydrophilic and simultaneously superoleophilic three-dimensional graphene foam material. Background technique [0002] Graphene is a planar two-dimensional layered material with a honeycomb lattice structure. Due to its excellent electrical, optical, mechanical and other properties, graphene has attracted wide attention. Three-dimensional graphene usually refers to a two-dimensional graphene assembly with a three-dimensional structure, and is a new type of functional material in the field of graphene chemistry. Integrating two-dimensional graphene sheets into three-dimensional assemblies can effectively control the electrical, optical, mechanical, catalytic and surface wettability of graphene. Therefore, three-dimensional graphene materials not only have the inherent physical and chemical properties of graphene, but also have three-dimensional porous Micro / nanostructures also have excellent prope...

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): C04B38/00C04B35/52
CPCC04B38/00C04B35/522
Inventor 宋昕鸿赵婷婷姚秋虹林捷陈曦
Owner XIAMEN HUAXIA 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