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

Bamboo-based porous carbon preparation method

A porous carbon, bamboo-based technology, applied in the field of preparation of bamboo-based porous carbon, can solve problems such as environmental pollution and resource waste

Active Publication Date: 2016-12-21
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF9 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in bamboo processing, bamboo poles and bamboo shoots are most used, and the utilization rate is only 35-40%. Most of the bamboo waste is directly discarded, or directly buried and incinerated, resulting in a great waste of resources and environmental 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
  • Bamboo-based porous carbon preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] The embodiment of the present invention provides a preparation method of bamboo-based porous carbon, comprising the following steps: step a) mixing bamboo powder with sulfuric acid solution, then introducing it into a hydrothermal reaction kettle for hydrolysis reaction, cooling, solid-liquid separation, and collecting liquid phase; step b) adjust the pH of the liquid phase to 7 with sodium hydroxide solution, and concentrate to obtain a concentrated sugar solution; step c) mix tetraethyl orthosilicate, hydrochloric acid solution and water, stir and react, and then mix with poly Oxyethylene polyoxypropylene tri-block copolymer is used as a template to mix with the concentrated sugar liquid, and the hydrothermal synthesis reaction is carried out in a hydrothermal reactor, cooled, filtered and separated, and the solid phase product is collected; step d) the described The solid phase product was dried and calcined at high temperature under nitrogen atmosphere to obtain bamb...

Embodiment 1

[0030] Such as figure 1 Shown, bamboo-based porous carbon is prepared according to the following steps:

[0031] Step 1, the hydrolysis of bamboo raw material: import hydrothermal reactor after bamboo powder is mixed with sulfuric acid solution, airtight hydrothermal reactor is heated, the concentration of sulfuric acid solution 10%, hydrolysis reaction temperature 200 o C, reaction time 5 h, bamboo raw material and sulfuric acid solution solid-to-liquid ratio 1kg:10L;

[0032] Step 2. Separation and concentration of the hydrolyzate: after the hydrolysis reaction, take out the hydrothermal reaction kettle and place it in cooling water, and cool it to 80 o Below C, open a kettle to derive the mixture, filter, the solid phase is the by-product biochar, and the liquid phase is adjusted to pH to 7 with 20% sodium hydroxide solution, and then concentrated to the same volume as the reactant sulfuric acid solution by rotary evaporation;

[0033]Step 3. Hydrothermal synthesis of por...

Embodiment 2

[0037] Step 1, the hydrolysis of bamboo raw material: import hydrothermal reactor after bamboo powder is mixed with sulfuric acid solution, airtight hydrothermal reactor is heated, the concentration of sulfuric acid solution 10%, hydrolysis reaction temperature 180 o C, reaction time 7 h, bamboo raw material and sulfuric acid solution solid-to-liquid ratio 1kg:8L;

[0038] Step 2. Separation and concentration of the hydrolyzate: after the hydrolysis reaction, take out the hydrothermal reaction kettle and place it in cooling water, and cool it to 80 o Below C, open a kettle to derive the mixture, filter, the solid phase is the by-product biochar, and the liquid phase is adjusted to pH to 7 with 20% sodium hydroxide solution, and then concentrated to the same volume as the reactant sulfuric acid solution by rotary evaporation;

[0039] Step 3. Hydrothermal synthesis of porous carbon: tetraethyl orthosilicate, 0.2 mol / L hydrochloric acid aqueous solution and water (volume ratio 1...

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 provides a bamboo-based porous carbon preparation method, wherein bamboo waste is used as a raw material for preparing a porous carbon, the raw material is hydrolyzed with an acid to produce a sugar liquid and by-produce a bamboo charcoal, the sugar liquid and a templating agent are mixed, hydrothermal synthesis is performed, and the obtained solid-phase product is subjected to high temperature calcining in a nitrogen atmosphere to prepare the porous carbon. According to the present invention, the porous carbon preparation process using the bamboo as the raw material is provided, such that the comprehensive utilization rate of the bamboo waste is increased; the preparation process is simple and controllable, the recycling of the resources is achieved, the direct discharge of the waste is reduced, and the ecological benefits are good; and the prepared product can be used in the fields of adsorption separation, catalyst carriers and the like, and the by-product charcoal can further be used as the energy source or function material.

Description

technical field [0001] The invention relates to the technical field of porous carbon preparation, in particular to a preparation method of bamboo-based porous carbon. Background technique [0002] Porous carbon refers to carbon materials with different pore structures, and its pore size can be adjusted according to the selection of raw materials and the adjustment of the preparation process. Studies have shown that porous carbon has the advantages of good thermal stability, acid and alkali resistance, electrical conductivity, and thermal conductivity, and can be used in the fields of adsorption and separation, catalysis, energy storage, and bioengineering materials. Porous carbon can be prepared from a variety of raw materials, and waste biomass is one of the ideal raw materials. The preparation of porous carbon from waste biomass can effectively reduce the carbon dioxide emitted by the direct combustion of waste, and at the same time obtain high value-added porous carbon pr...

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): C01B31/02
Inventor 李音俞晨阳单胜道毛建卫杨瑞芹
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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