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

A modified magnetic graphene oxide adsorbent with plate-brush structure and its preparation method and application

A technology of oxidized rock and adsorbent, which is applied in chemical instruments and methods, adsorption water/sewage treatment, alkali metal oxides/hydroxides, etc., can solve the problems of weak selective adsorption, non-biodegradable, poor adsorption effect, etc. , to achieve the effect of increasing the adsorption capacity, good capture and removal effect, and poor recycling effect

Active Publication Date: 2021-06-01
NANJING NORMAL UNIVERSITY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: In view of the problems that the existing adsorbents cannot be biodegraded, easily cause secondary pollution, high cost, weak selective adsorption, and poor adsorption effect, the present invention provides an improved adsorbent with a plate-brush structure. Magnetic graphene oxide adsorbent and its preparation method and application

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
  • A modified magnetic graphene oxide adsorbent with plate-brush structure and its preparation method and application
  • A modified magnetic graphene oxide adsorbent with plate-brush structure and its preparation method and application
  • A modified magnetic graphene oxide adsorbent with plate-brush structure and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The preparation method is as follows:

[0044] Measure 230 mL of concentrated sulfuric acid with a mass fraction of 98%, and cool it to 0°C in an ice-water bath. Take 7g of graphite and 5g of sodium nitrate and slowly add them to concentrated sulfuric acid. Then carefully add a certain amount of potassium permanganate (the mass ratio of graphite to potassium permanganate is 1:3) at a stirring speed of 150rpm, and ensure that the system temperature does not exceed 5°C during this period. After the addition is complete, remove the ice-water bath, then carefully raise the temperature of the reaction system to about 35°C, and react at this temperature for 120 minutes. After the reaction was completed, 400 mL of water was carefully added dropwise to the system at a stirring speed of 300 rpm at a rate of 2 drops per second, and then the temperature of the system was raised to 95°C. Add 50 mL of 30% hydrogen peroxide. The crude product was filtered out, washed with 5% dilut...

Embodiment 2

[0051] The preparation method is as follows:

[0052] Measure 230 mL of concentrated sulfuric acid with a mass fraction of 98%, and cool it to 0°C in an ice-water bath. Take 7g of graphite and 5g of sodium nitrate and slowly add them to concentrated sulfuric acid. Then carefully add a certain amount of potassium permanganate (the mass ratio of graphite to potassium permanganate is 1:4) at a stirring speed of 150rpm, and ensure that the system temperature does not exceed 5°C during this period. After the addition is complete, remove the ice-water bath, then carefully raise the temperature of the reaction system to about 35°C, and react at this temperature for 120 minutes. After the reaction was completed, 400 mL of water was carefully added dropwise to the system at a stirring speed of 300 rpm at a rate of 2 drops per second, and then the temperature of the system was raised to 95°C. Add 50 mL of 30% hydrogen peroxide. The crude product was filtered out, washed with 5% dilut...

Embodiment 3

[0059] The preparation method is as follows:

[0060] Measure 230 mL of concentrated sulfuric acid with a mass fraction of 98%, and cool it to 0°C in an ice-water bath. Take 7g of graphite and 5g of sodium nitrate and slowly add them to concentrated sulfuric acid. Then carefully add a certain amount of potassium permanganate (the mass ratio of graphite to potassium permanganate is 1:15) at a stirring speed of 150rpm, and ensure that the system temperature does not exceed 5°C during this period. After the addition is complete, remove the ice-water bath, then carefully raise the temperature of the reaction system to about 35°C, and react at this temperature for 120 minutes. After the reaction was completed, 400 mL of water was carefully added dropwise to the system at a stirring speed of 300 rpm at a rate of 2 drops per second, and then the temperature of the system was raised to 95°C. Add 50 mL of 30% hydrogen peroxide. The crude product was filtered out, washed with 5% dilu...

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 modified magnetic graphene oxide adsorbent with a plate-brush structure and its preparation method and application. The adsorbent is a magnetic graphite oxide formed by combining graphene oxide and ferroferric oxide magnetic particles The modified magnetic graphene oxide adsorbent with a plate-brush structure is formed by grafting organic polymer monomers containing benzene rings on the surface as a "plate" structure and a "brush" structure. Compared with the prior art, the magnetic graphene oxide adsorbent with plate-brush structure synthesized by the present invention has reusability, easy separation, and high resistance to salt ions. For pharmaceutical organic pollutants in water, such as norfloxa The adsorption effect of star and tylosin is excellent.

Description

technical field [0001] The invention relates to a modified magnetic graphene oxide adsorbent with a plate-brush structure and a preparation method and application thereof, belonging to the technical field of adsorbents. Background technique [0002] Water is an essential natural resource for human production and life, but the increasingly serious environmental pollution has led to serious pollution of rivers, lakes, and reservoirs, and the pollution of drinking water sources is a direct threat to human health. Organic pollutants are the main source of water environment pollution today, and are also the research focus and difficulty in the field of water treatment in recent years. There are many types of emerging organic pollutants, such as drugs and personal skin care products PPCPs. my country is a big country in the production and use of drugs. Disinfection by-products such as DBPs, anti-inflammatory drugs, anti-epileptic drugs and β receptor blockers are widely used in t...

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): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/30
CPCB01J20/06B01J20/20B01J20/28009B01J20/28014C02F1/283C02F2101/30
Inventor 杨朕周夏杨维本姚娜朱潇逸王悦王琳
Owner NANJING NORMAL UNIVERSITY
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