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

Preparation and application of a nanostructured composite adsorbent material

A nanostructure composite and adsorption material technology is applied in the preparation of nanostructure composite adsorption materials and the preparation of maleic acid modified mesoporous silicon materials, which can solve problems such as air pollution and water pollution, and achieve high selective adsorption and separation. , Improve the adsorption capacity, the preparation process is simple and easy to operate

Inactive Publication Date: 2017-02-22
JIANGSU UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because these wastes contain a large amount of rare earth metals and other heavy metal elements, they are often not properly treated, and have caused serious environmental problems such as water pollution and air pollution.

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 and application of a nanostructured composite adsorbent material
  • Preparation and application of a nanostructured composite adsorbent material
  • Preparation and application of a nanostructured composite adsorbent material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Dissolve 500mg of CTAB in 240mL of distilled water, keep stirring mechanically, add 1.75mL of sodium hydroxide solution and 0.5mL of TEOS dropwise after half an hour. React at 80°C for 2 hours, centrifuge, and wash with ethanol three times. A mesoporous silicon material is obtained.

[0035] (2) Dissolve 1 g of the mesoporous silicon material in step (1) in 75 mL of toluene. Add 2 mL of APTES dropwise, and reflux for one day to obtain a silane-modified mesoporous silicon material.

[0036] (3) Disperse 0.25 g of the silane-modified mesoporous silicon material obtained in (2) in 15 mL of DMF, and then add 0.35 g of maleic anhydride (MA) and 0.25 mL of pyridine. Under the protection of nitrogen, react at 50°C for 3 hours, and the solution system turns reddish brown. Filter and dry to obtain the maleic acid modified mesoporous composite material.

[0037] (5) The transmission electron microscope pictures of mesoporous silicon materials and nanostructured composite ...

Embodiment 2

[0041] (1) Dissolve 400mg of CTAB in 200mL of distilled water, keep stirring mechanically, add 1.45mL of sodium hydroxide solution and 0.414mL of TEOS dropwise after half an hour. React at 80°C for 2 hours, centrifuge, and wash with ethanol three times. A mesoporous silicon material is obtained.

[0042] (2) Dissolve 2.06 g of the mesoporous silicon material in step (1) in 160 mL of toluene. 4.267mL of APTES was added dropwise and refluxed for one day to obtain a silane-modified mesoporous silicon material.

[0043] (3) Disperse 0.32 g of the silane-modified mesoporous silicon material obtained in (2) in 20 mL of DMF, and then add 0.46 g of maleic anhydride (MA) and 0.333 mL of pyridine. Under the protection of nitrogen, react at 50°C for 3 hours, and the solution system turns reddish brown. Filter and dry to obtain the maleic acid modified mesoporous composite material.

[0044](5) The TEM images of mesoporous silicon materials and nanostructured composite adsorbents are ...

Embodiment 3

[0054] (1) 201.6 mg of CTAB was dissolved in 96 mL of distilled water, kept under mechanical stirring, and 0.7 mL of sodium hydroxide solution and 0.2 mL of TEOS were added dropwise after half an hour. The reaction was carried out at 80 °C for 2 h, centrifuged, and washed three times with ethanol. A mesoporous silicon material is obtained.

[0055] (2) Dissolving 1.3 g of the mesoporous silicon material in step (1) in 100 mL of toluene. 2.667 mL of APTES was added dropwise and refluxed for one day to obtain a silane-modified mesoporous silicon material.

[0056] (3) Disperse 0.425 g of the silane-modified mesoporous silicon material obtained in (2) in 25 mL of DMF, and then add 0.587 g of maleic anhydride (MA) and 0.417 mL of pyridine. Under the protection of nitrogen, react at 50 °C for 3 h, and the solution system becomes reddish-brown. Filtration and drying to obtain maleic acid modified mesoporous composite 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 belongs to the technical field of the preparation technology and the separation technology of materials, relates to a preparation method of a nano-structure composite absorbing material and particularly relates to a preparation method of a novel maleic-acid modified meso-porous silicon material and an application of selective rare-earth ions. The method adopts maleic-acid amide as modified ligand, and adopts high-specific-surface meso-porous silicon as a supporting material to prepare the composite modified material which can realize selective absorption and separation of the rare-earth ions in mineral waste water. The result shows that the modified meso-porous silicon material obtained by utilizing the preparation method has excellent selective absorbing performance of the rare-earth ions.

Description

technical field [0001] The invention belongs to the field of material preparation technology and separation technology, and relates to a preparation method of a nanostructure composite adsorption material, in particular to a preparation method of a novel maleic acid-modified mesoporous silicon material and selective absorption of rare earth ions in wastewater Applications. Background technique [0002] With the growth of social green and low-carbon economy, rare earth elements are widely used in permanent magnets, fluorescent lamps, rechargeable batteries, catalysts and other industrial fields due to their irreplaceable properties, especially with the development of hybrid vehicles, wind turbines, compact The popularization of fluorescent lamps, while increasing the use and price of rare earth metals, has produced a large amount of waste containing a large amount of rare earth elements and other metal elements. Because these wastes contain a large amount of rare earth metal...

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 Patents(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28
Inventor 郑旭东汪纯潘建明戴江栋卫潇闫永胜
Owner JIANGSU 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