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

A mesoporous cellulose biochar composite material loaded with magnetic ferromanganese oxide and its preparation method and application

A technology of ferromanganese oxides and composite materials, applied in the fields of alkali metal oxides/hydroxides, chemical instruments and methods, alkali metal compounds, etc., to achieve the effects of low price, easy operation, and high magnetic saturation

Active Publication Date: 2021-03-30
SOUTH CHINA UNIV OF TECH
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Judging from the existing research, how to make full use of the biomass resource cellulose and prepare positively charged biochar adsorption materials through a simple method; how to improve the dispersion stability of the metal oxide nanoparticle adsorption materials still needs further study

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 mesoporous cellulose biochar composite material loaded with magnetic ferromanganese oxide and its preparation method and application
  • A mesoporous cellulose biochar composite material loaded with magnetic ferromanganese oxide and its preparation method and application
  • A mesoporous cellulose biochar composite material loaded with magnetic ferromanganese oxide and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064]Example 1: Preparation of a mesoporous cellulose bio (MCB)

[0065]Place the cellulose in the tube furnace, warmed to 300 ° C at a temperature rise rate of 5 ° C / min, in continuous N2The gas flow was charged for 60 min carbonization to give cellulose carbon (Cb); mixed the above-mentioned cellulose carbon with potassium hydroxide in a mass ratio of 1: 3, and then added to the water, and held 30% by weight of the base concentration. The above solution was dried in an oven at 80 ° C to obtain cellulose bio-hydroxide (CB-KOH); the cellulose bio-base was placed in a tube furnace, a temperature increase rate of 5 ° C / min. Rounded to 700 ° C, in continuous N2The gas flow was charged for 60 min to give cellulose bio (CB-700), then washed it with water to be washed with water, and 12 h was dried in vacuo at 30 ° C to obtain a mesoporous cellulose bio (MCB-700).

Embodiment 2

[0066]Example 2: Preparation of a mesoporous cellulose bio (MCB)

[0067]Place cellulose in a tube furnace, temperature rise to 250 ° C at 3 ° C / min, in continuous N2The gas flow was charged 80 min carbonized to obtain cellulose carbon (Cb); mixed the above-mentioned cellulose carbon and potassium hydroxide in a mass ratio of 1: 2, and then added thereto, and the water concentration of 20 wt% concentration was maintained. The above solution was dried in an oven at 70 ° C to obtain cellulose bio-hydroxide (CB-KOH); the cellulose bio-base was placed in a tube furnace, at 3 ° C / min. Rounded to 550 ° C, in continuous N2The gas stream was charged 240 minutes to give cellulose bio (CB-550), and then washed with water to be washed to neutral, and 24 h was dried in vacuo to 20 ° C to obtain a mesoporous cellulose bio (MCB-550).

Embodiment 3

[0068]Example 3: Preparation of a mesoporous cellulose bio (MCB)

[0069]Place the cellulose in a tube furnace, temperature rise to 350 ° C at 8 ° C / min, in continuous N2The gas flow was charged 40 min carbonized to obtain cellulose carbon (CB); the above-mentioned cellulose carbon and potassium hydroxide were mixed in a mass ratio of 1: 4, and then water was added thereto, and the concentration of the concentration of 40% by weight was allowed. The above solution was dried in an oven at 90 ° C to obtain cellulose bio-hydroxide (CB-KOH); the above cellulose bio-base was placed in a tube furnace, at 8 ° C / min. Rate. Rounded to 850 ° C, in continuous N2The gas flow was charged for 30 min to give cellulose bio (CAC-850), then washed with water to be washed to neutral, and 6 h was dried in vacuo at 40 ° C to obtain a mesoporous cellulose bio (MCB-850).

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

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
adsorption capacityaaaaaaaaaa
Login to View More

Abstract

A magnetic ferromanganese oxide-loaded mesoporous cellulose biochar composite material, a preparation method therefor and application thereof in the field of environmental governance and repair, which are particularly applicable to the field of anionic contaminant adsorption. Said preparation method comprises: first preparing mesoporous cellulose biochar, and then one-step synthesizing MnFe2O4 by means of solvothermal method, and loading same on the mesoporous cellulose biochar, so as to obtain a magnetic ferromanganese oxide-loaded mesoporous cellulose biochar composite material. The magnetic ferromanganese oxide-loaded mesoporous cellulose biochar composite material prepared by said method has characteristics of strong magnetism, being positively charged under acidic conditions, high dispersion stability and good adsorption property, etc., and can be widely used in the field of environmental governance and repair, and is particularly suitable for repairing pollution of anionic contaminants, such as in the field of adsorption of heavy metal and organophosphorous pesticide, and the adsorption capacity to glyphosate can reach 167.2 mg / g.

Description

Technical field[0001]The present invention belongs to the technical field of biomass resource reuse and environmental functional function, and in particular, the present invention relates to a magnetic manganese iron oxide load mesh cellulose bio-carbon composite material (MNFE2O4@MCB) and its preparation method and the application in the field of environmental governance repair are especially suitable for the field of anionic contaminant adsorption.Background technique[0002]With the rapid development of mining, battery and electroplating, fertilizer, pesticides, etc. in agricultural production, and the diversification of human life, many heavy metals and organic pollutants are discharged into water and soil. These pollutants can enter the human body through the role of the food chain, which constitutes a potential threat to human life, which is a quite part of anionic contaminant. In this regard, scholars have conducted a lot of research and has made certain progress, with adsorpti...

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): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/30C02F101/34
CPCB01J20/06B01J20/20B01J20/28009B01J2220/4812B01J2220/4875C02F1/281C02F1/283C02F2101/306C02F2101/34
Inventor 章莉娟陈全郑杰伟党志
Owner SOUTH CHINA UNIV OF TECH
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