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Preparation method of reutilization type charcoal composite material

A composite material, biochar technology, applied in chemical instruments and methods, water pollutants, chemical/physical processes, etc., can solve problems such as no literature reports

Active Publication Date: 2018-09-28
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, there is no literature report on the combination of micro-battery method, photocatalysis method and metal oxide catalysis method in the preparation of biochar composites.

Method used

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  • Preparation method of reutilization type charcoal composite material
  • Preparation method of reutilization type charcoal composite material
  • Preparation method of reutilization type charcoal composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Present embodiment selects moso bamboo as preparation raw material, and material preparation process is as follows:

[0048] First, crush the moso bamboo in a pulverizer, pass through a 50-mesh sieve, and dry at 105°C for 24 hours, then immerse 10g of bamboo powder in 100mL of KOH solution with a mass fraction of 15%, stir vigorously at room temperature for 30min, 3000r / min After centrifuging for 10 minutes, separate the moso bamboo powder, dry it again, add 12% of 100 mesh iron powder to the dried bamboo powder, crack it at 700°C for 1 hour under airtight conditions, then lower it to room temperature, crush it, and boil it in boiling water for 30 minutes to clean it. , Prepare porous biochar material after drying; take 10ml tetrabutyl titanate and add it to 50ml glacial acetic acid and stir vigorously for 15min, add 40ml distilled water and stir for 1h to form a sol system, take 10g biochar material and add it to the sol system and stir vigorously for 24h Finally, the ...

Embodiment 2

[0061] In this embodiment, corn stalks are selected as the raw material for preparation, and the preparation process of the material is as follows:

[0062] First, crush the corn stalks in a pulverizer, pass through a 60-mesh sieve, and dry at 80°C for 24 hours, then immerse 30g of corn stalk powder in 200mL of 20% NaOH solution, and vigorously stir at 25°C for 60 minutes After centrifuging at 3000r / min for 10min, the corn stalk powder was separated, dried again, and 10% of 100-mesh iron powder was added to the dried corn stalk, which was cracked at 500°C for 2 hours under airtight conditions and then lowered to room temperature. Boil in boiling water for 30 minutes, wash and dry to prepare porous biochar materials; take 20ml of tetraethyl titanate and add it to 30ml of ethanol and stir vigorously for 10 minutes, add 50ml of distilled water and stir for 1 hour to form a sol system, take 10g of biochar materials and add it to the sol system After stirring vigorously for 24 hour...

Embodiment 3

[0071] In this example, the residual sludge from the sewage plant is selected as the raw material for preparation, and the preparation process of the material is as follows:

[0072] First immerse 40g of dried excess sludge in 200mL KOH solution with a mass fraction of 30%, stir vigorously at room temperature for 60min, centrifuge at 4000r / min for 10min, dry the sludge at 105°C for 24h, and then pulverize it in a pulverizer After 15 minutes, pass through a 50-mesh sieve, add 10% 100-mesh iron powder to the dried sludge powder, crack at 700°C for 1 hour under nitrogen protection, crush, pass through a 50-mesh sieve, and boil in boiling water for 30 minutes. Prepare a porous biochar material after drying; take 10ml diisopropyl dititanate and add it to 40ml propionic acid and stir vigorously for 20min, add 50ml distilled water and stir for 1.5h to form a sol system, take 10g biochar material and add it to the sol system vigorously After stirring for 24 hours, the biochar powder w...

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Abstract

The invention discloses a preparation method of a reutilization type charcoal composite material, and belongs to the technical field of novel materials. The preparation method comprises the followingsteps of using activated and pretreated organic waste biomass as the raw material, and preparing a porous charcoal material; loading metal and metal oxide particles onto the porous charcoal material by a series of treatment technologies, so as to prepare the reutilization type charcoal composite material. The reutilization type charcoal composite material has the advantages that the characteristics of adsorption, catalysis, degradation, re-adsorption, catalysis and degradation under the ultraviolet light radiation function are utilized, so as to remove the dye in the wastewater at high efficiency; the reutilization effect is realized, the use technology is simple, the operability is strong, the environment-friendly effect is realized, and the good application prospect is realized.

Description

technical field [0001] The invention discloses a preparation method of a reusable biochar composite material, which belongs to the technical field of new materials. Background technique [0002] With the acceleration of the pace of social production and life, a large amount of waste biomass will be produced in industrial and agricultural production and life. If it is not fully utilized, it will be corrupted and deteriorated, which not only wastes a lot of resources, but also causes serious environmental pollution. At present, the preparation of biochar materials by hydrothermal method, microwave cracking method or pyrolysis method is an effective way to utilize waste biomass. [0003] Biochar has the characteristics of high specific surface area and rich content of active functional groups. It can effectively remove heavy metals, dyes, pesticides and other refractory organic pollutants in sewage through physical adsorption and chemical adsorption. It is a low-cost adsorbent....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30B01J23/78B01J23/80C02F1/28C02F1/46C02F101/30C02F103/30
CPCB01J20/02B01J20/041B01J20/06B01J20/20B01J23/78B01J23/80B01J2220/42B01J2220/4806B01J2220/4812B01J2220/4825B01J2220/4887C02F1/281C02F1/46C02F2101/308C02F2103/30
Inventor 付少海翟世民李敏张丽平王冬王春霞田安丽
Owner JIANGNAN UNIV
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