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

Hierarchical porous carbon material, and preparation method and application thereof

A carbon material, multi-level porous technology, applied in the field of biomass carbon adsorbent preparation, can solve the problems of limited volatile organic compound adsorption performance, inability to large-scale production and application, complex porous carbon material methods, etc., and achieves low cost and high cost. Specific surface area, rich source effect

Pending Publication Date: 2021-11-19
SOUTH CHINA UNIV OF TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pretreatment cost of these biomasses is high, and the method of preparing porous carbon materials is relatively complicated, which is easy to cause secondary pollution and cannot be produced and applied on a large scale.
At the same time, due to the limitations of the specific surface area and micropores of the prepared porous carbon materials, the adsorption performance of volatile organic compounds is extremely limited.

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
  • Hierarchical porous carbon material, and preparation method and application thereof
  • Hierarchical porous carbon material, and preparation method and application thereof
  • Hierarchical porous carbon material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A method for preparing a porous carbon material by pretreating brewer's grains with spore-forming Aspergillus niger (Aspergillus niger CBS513.88), comprising the steps of:

[0047] (1) The brewer's grains with high water content obtained from the brewery were filtered through four layers of gauze to remove water, and washed three times with ultrapure water. Then the brewer's grains washed with gauze and dewatered are placed in a normal room, air-dried naturally, and set aside;

[0048] (2) Spread and inoculate the spore-forming Aspergillus niger (Aspergillus niger CBS513.88) glycerin preserved strain on potato dextrose agar medium (PDA), PDA medium: potato powder 200g / L, glucose 20g / L, agar 20g / L L, pH 5.6. Collect spores after culturing at 30°C for 7 days, and use the collected spores as the inoculum for later use;

[0049] (3) Inoculate the spore liquid prepared in step (2) into 500 mL of potato glucose fermentation medium, and add 15 g of naturally air-dried brewer'...

Embodiment 2

[0055] A method for preparing a porous carbon material by pretreating brewer's grains without spore-forming Aspergillus niger (Aspergillus niger SH2), comprising the steps of:

[0056] (1) The brewer's grains with high water content obtained from the brewery were filtered through four layers of gauze to remove water, and washed three times with ultrapure water. Then the brewer's grains washed with gauze and dewatered are placed in a normal room, air-dried naturally, and set aside;

[0057] (2) Inoculate non-spore-producing Aspergillus niger (Aspergillus niger SH2) glycerol preserved strains in liquid CD medium, CD medium: glucose 20g / L, potassium chloride 2g / L, magnesium sulfate heptahydrate 0.5g / L, phosphoric acid Potassium dihydrogen 1g / L, ferrous sulfate heptahydrate 0.01g / L, sodium nitrate 3g / L, agar 0.05%. Cultivate at 30°C for 5 days and set aside;

[0058] (3) Inoculate the mycelia liquid prepared in step (2) into 500 mL of potato glucose fermentation medium, and add ...

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
adsorption capacityaaaaaaaaaa
adsorption capacityaaaaaaaaaa
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a hierarchical porous carbon material, and a preparation method and application thereof, and relates to the technical field of preparation of biomass charcoal adsorbents. The brewer's grains are used as a substrate, and the brewer's grains are subjected to microbial pretreatment by using the characteristic that aspergillus niger produces enzyme, so that the carbon material with the highest specific surface area of 1689 m<2> / g and a hierarchical pore structure is obtained. The carbon material has the characteristics of high specific surface area and multi-pore-diameter structures of micropores, mesopores and macropores, and the adsorption performance of the carbon material can be effectively improved. Meanwhile, the carbon material has good adsorption performance on toluene, and the highest adsorption capacity is 0.399 g / g. The brewer's grains and the aspergillus niger as substrates are nontoxic and harmless precursor substances, and the preparation method is simple, green and environment-friendly, the cost is low, and industrialization can be realized; the method can be widely applied to the field of adsorption and can also be applied to other fields such as environmental protection, catalysis and medicine; and the method has a great application prospect in the fields of adsorbent development and air purification.

Description

technical field [0001] The present invention relates to the technical field of preparation of biomass charcoal adsorbent, in particular to a method of using Aspergillus niger to pretreat brewer's grains to prepare a multi-level porous carbon material and the application of the prepared carbon material, which is volatile organic compounds (VOCs) and other pollutants The adsorption process provides safe and reliable materials. Background technique [0002] Brewer's grains are the main by-products in the beer production process, which is the residue after repeated fermentation with yeast using high-quality barley as raw material. According to statistics, about 0.25 tons of brewer's grains are produced for every ton of beer produced, and the annual output of brewer's grains in my country reaches more than 10 million tons, and it is still increasing. The main components of brewer's grains are malt husk, leaf buds, insoluble protein, hemicellulose, fat, ash and a small amount of ...

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): B01J20/20B01D53/02B01J20/30
CPCB01J20/20B01D53/02B01D2257/708Y02E50/30
Inventor 潘力喻乐意李星
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