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

Three-dimensional graphene aerogel material for dye adsorption and preparation method thereof

A graphene aerogel, graphene technology, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as structure fixation, and achieve the effects of high porosity, fast adsorption, and simple operation

Active Publication Date: 2016-03-23
TIANJIN UNIV
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the three-dimensional graphene obtained by the current method, the connection force between graphene sheets is mostly physical effects such as π-π interaction or Van der Waals force or bridging by covalent bonds of small organic molecules, and the structure is fixed.

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
  • Three-dimensional graphene aerogel material for dye adsorption and preparation method thereof
  • Three-dimensional graphene aerogel material for dye adsorption and preparation method thereof
  • Three-dimensional graphene aerogel material for dye adsorption and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1) Preparation of 2-urea-4-[H]-pyrimidinone: Weigh 0.125g of 6-methylisocytosine into a three-necked flask, then add 1.008g of 1,6-hexamethylene diisocyanate, Under the protection of the atmosphere, react at 80°C for 12 hours, then precipitate with petroleum ether with a boiling point of 30-60, separate and dry to obtain 0.26 g of the product 2-urea-4-[H]-pyrimidinone.

[0026] 2) Reaction of 2-urea-4-[H]-pyrimidinone with graphene oxide: Weigh 0.26g of 2-urea-4-[H]-pyrimidinone into a three-necked flask, pour 30ml of anhydrous N, N-dimethylformamide; then add 0.13g of graphene oxide, and ultrasonically disperse the mixture for 30 minutes; add dibutyltin dilaurate in parts per thousand, and react at 80°C under the protection of an argon atmosphere After 6 hours, 0.3 g of the product 2-urea-4-[H]-pyrimidinone-modified graphene was obtained by suction filtration.

[0027] 3) Preparation of three-dimensional structure graphene: disperse 0.3g of 2-urea-4-[H]-pyrimidinone-m...

example 1

[0028] The scanning electron micrograph of the three-dimensional structure graphene material that example 1 obtains is as figure 1 As shown, the morphology presents a three-dimensional interpenetrating porous structure; a certain amount of sample is taken to test the Fourier transform infrared absorption spectrum (FTIR), and the results are as follows figure 2 As shown, the typical absorption peaks of graphene and 2-urea-4-[H]-pyrimidinone have been presented on the spectrogram; a certain amount of sample is taken to test X-ray diffraction, and the results are as follows image 3 As shown, there is an obvious peak at θ=9.5° on the spectrum, indicating that after modifying graphene oxide with 2-urea-4-[H]-pyrimidinone, the interlayer spacing between graphene sheets increases.

Embodiment 2

[0030] 1) Preparation of 2-urea-4-[H]-pyrimidinone: Weigh 0.25g of 6-methylisocytosine into a three-necked flask, then add 2.016g of 1,6-hexamethylene diisocyanate, Under the protection of the atmosphere, react at 90°C for 18 hours, then precipitate with petroleum ether with a boiling point of 30-60, separate and dry to obtain 0.54 g of the product 2-urea-4-[H]-pyrimidinone.

[0031] 2) Reaction of 2-urea-4-[H]-pyrimidinone with graphene oxide: Weigh 0.54g of 2-urea-4-[H]-pyrimidinone into a three-necked flask, pour 60ml of anhydrous N, N-dimethylformamide; then add 0.18g of graphene oxide, and ultrasonically disperse the mixture for 60 minutes; After reacting for 12 hours, 0.55 g of the product 2-urea-4-[H]-pyrimidinone-modified graphene was obtained by suction filtration.

[0032] 3) Preparation of three-dimensional structure graphene: disperse the graphene modified by 2-urea-4-[H]-pyrimidinone of 0.55g in anhydrous N,N-dimethylformamide, add 50ml of distilled water, static...

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 relates to a three-dimensional graphene aerogel material for dye adsorption and a preparation method thereof. First, graphene oxide and 2-urea-4-[H]-pyrimidone molecules are dissolved in anhydrous N,N-dimethyl formamide, wherein dibutyltin dilaurate serves as a catalyst, and reaction is performed for a period of time to obtain 2-urea-4-[H]-pyrimidone modified graphene; the 2-urea-4-[H]-pyrimidone modified graphene is dissolved in the anhydrous N,N-dimethyl formamide, distilled water is added to enable the 2-urea-4-[H]-pyrimidone modified graphene to be self-assembled into a loose porous structure; the N,N-dimethyl formamide is removed by exchanging the solvents, and low-temperature freeze-drying is performed to obtain the three-dimensional graphene material. By the adoption of the technical scheme, the operation is simple and fast and is environmentally friendly, and the prepared aerogel material is high in porosity and large in specific surface area and is expected to be applied to the fields of dyes, heavy metal adsorption and the like.

Description

technical field [0001] The invention belongs to the technical field of airgel materials for dye adsorption, and more specifically relates to a three-dimensional graphene structure material modified by 2-urea-4-[H]-pyrimidinone molecules and a preparation method thereof. Background technique [0002] Graphene, the English name is Graphene, is a two-dimensional (2D) carbon nanomaterial composed of a single layer of carbon atoms. It is another new type of carbon nanomaterial discovered after fullerene and carbon nanotubes. Graphene is also known as single-layer graphite, because its atomic arrangement is exactly the same as that of graphite single atom, and it is carbon atom with sp 2 The hybrid form is a single-layer two-dimensional crystal closely arranged in a honeycomb structure. Graphene, a single-layer two-dimensional carbon material, has attracted widespread attention due to its large specific surface area, high electrical and thermal conductivity, and excellent mechani...

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): C01B31/04B01J20/20
Inventor 封伟韩军凯沈永涛冯奕钰
Owner TIANJIN 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