Bamboo charcoal-based magnetic composite material and preparation method

A magnetic composite material and composite material technology are applied in the field of bamboo charcoal-based magnetic composite materials, which can solve the problems of complex magnetic adsorbent process, and achieve the effects of being suitable for industrial production and popularization, reducing costs, and having good crystallization performance.

Inactive Publication Date: 2016-08-03
INT CENT FOR BAMBOO & RATTAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is the complex problem of preparing magnetic adsorbent technology in the prior art, and then a kind of method for preparing bamboo charcoal-based magnetic composite material is provided, and the method has the advantages of simple process and low cost;

Method used

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  • Bamboo charcoal-based magnetic composite material and preparation method
  • Bamboo charcoal-based magnetic composite material and preparation method
  • Bamboo charcoal-based magnetic composite material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 Shown, the bamboo charcoal base / α-Fe described in this embodiment 3 o 4 The magnetic composite material is prepared according to the following steps:

[0042] (1) Divide the bamboo raw material into small sticks of 10mm×5mm×5mm, then use a pulverizer to pulverize and sieve, select a 60-mesh powder sample and dry it at 120°C for 12h; and dry the above-mentioned dried bamboo powder Placed in a tubular calciner, under the protection of argon (the argon flow rate is 300mL / min), the calcining treatment is carried out at a high temperature of 600°C for 1h, and the heating rate of the calcining step is 5°C / min, and the prepared Bamboo charcoal, spare;

[0043] (2) Dissolve 35g of ferric chloride hexahydrate in 65ml of ultrapure water (resistivity 18.2 Ω), and stir evenly under the condition of 150rpm / min to obtain ferric chloride solution for subsequent use;

[0044] (3) Mix 2 g of prepared bamboo charcoal with 20 mL of ferric chloride solution at room tem...

Embodiment 2

[0048] Such as figure 1 As shown, the bamboo charcoal base / α-Fe magnetic composite material described in this embodiment is prepared according to the following steps:

[0049] (1) Divide the bamboo raw material into small sticks of 10mm×5mm×5mm, then use a pulverizer to pulverize and sieve, select a 60-mesh powder sample and dry it at 120°C for 12h; and dry the above-mentioned dried bamboo powder Placed in a tubular calciner, under the protection of argon (the argon flow rate is 300mL / min), the calcining treatment is carried out at a high temperature of 600°C for 1h, and the heating rate of the calcining step is 5°C / min, and the prepared Bamboo charcoal, spare;

[0050] (2) Dissolve 35g of ferric chloride hexahydrate in 65ml of ultrapure water (resistivity 18.2 Ω), and stir evenly under the condition of 150rpm / min to obtain ferric chloride solution for subsequent use;

[0051] (3) Mix 4g of prepared bamboo charcoal with 40mL of ferric chloride solution at room temperature, a...

Embodiment 3

[0055] Such as figure 1 As shown, the bamboo charcoal base / α-Fe magnetic composite material described in this embodiment is prepared according to the following steps:

[0056] (1) Divide the bamboo material into small sticks of 10mm×5mm×5mm, then use a pulverizer to pulverize and sieve, select a 60-80 mesh powder sample and dry it at 120°C for 12 hours; Bamboo powder is placed in a tubular calciner, under argon protection (the argon flow rate is 300mL / min), and is calcined at a high temperature of 600°C for 1h, and the heating rate of the calcining step is 5°C / min, Bamboo charcoal is prepared and set aside;

[0057] (2) Dissolve 40g of ferric chloride hexahydrate in 60ml of ultrapure water (resistivity 18.2 Ω), and stir evenly under the condition of 150rpm / min to obtain ferric chloride solution for subsequent use;

[0058] (3) Mix 4g of prepared bamboo charcoal with 40mL of ferric chloride solution at room temperature, and stir at 350rpm / min for 2h until fully uniform, then ...

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Abstract

The invention belongs to the technical field of materials, particularly relates to a bamboo charcoal-based magnetic composite material, and further discloses a preparation method of the material .The method comprises the steps that bamboo charcoal is utilized as a carrier, a chlorine-containing iron salt serves as the raw material, and the composite material is prepared through a high-temperature thermal cracking reaction .According to the bamboo charcoal-based magnetic composite material, moso bamboo powder with a rich natural pore structure serves as the raw material to prepare biochar to serve as a metal carrier and a carbon source, magnetic media are introduced into the biochar through the high-temperature thermal cracking reaction, composite iron oxide or zero-valent iron biochar can be orientedly synthesized by controlling the reaction temperature, the preparation process is simple and easy to operate, operation is convenient, the process conditions are easy to control, the time is saved, the raw materials are cheap, the product yield is high, complex and expensive equipment is not needed, the cost is reduced, the problems that the cost is high, and the preparation process is complex in the traditional method of introducing the magnetic media are solved, and the bamboo charcoal-based magnetic composite material and the preparation method are particularly suitable for industrial production and popularization.

Description

technical field [0001] The invention belongs to the technical field of new materials, specifically relates to a bamboo charcoal-based magnetic composite material prepared by a high-temperature thermal cracking method, and further discloses a preparation method thereof. Background technique [0002] Biochar (Biochar) refers to the high temperature treatment of biomass under the condition of anoxic, the oil and gas in the biomass are burned, and the rest is biochar, which is a kind of rich in organic matter pyrolysis or incomplete combustion. carbon porous material. Biomass such as agricultural waste, food residue, forest residue, wood waste, and bamboo and rattan processing residues can be used for the preparation of biochar. Biochar has the advantages of low cost, abundant resources, environmental friendliness, and excellent mechanical and thermal stability. These excellent properties make it widely used in many fields and have aroused widespread interest in biochar worldwi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28
CPCB01J20/20B01J20/0229B01J20/28009C02F1/288
Inventor 江泽慧刘杏娥马建锋吴明山杨淑敏田根林尚莉莉
Owner INT CENT FOR BAMBOO & RATTAN
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