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A biochar-loaded magnetic substance composite adsorption material and its preparation method and application method

A composite adsorption material and magnetic substance technology, applied in the field of comprehensive utilization of biomass waste, can solve the problems affecting the adsorption chemical properties of materials, uneven aggregation of metal particles, cumbersome preparation steps, etc., and achieve good industrial production prospects and process Stable and controllable, the effect of a wide range of raw material sources

Active Publication Date: 2019-07-12
HUANGHUAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention is roughly similar to the preparation steps of the Chinese invention patent with the application publication number CN105772708A. Both of them also have certain defects. Test conditions
In this invention, biochar is first prepared under hydrothermal or oxygen-limited conditions, which will cause some oxygen-containing groups and structural defects to be contained on the bio-char. When mixing with metal salts, these oxygen-containing groups or structural defects will be preferentially Adsorption of metal salt ions may cause uneven aggregation of metal particles in the subsequent preparation process, which will eventually affect the chemical properties of the material such as adsorption or catalysis

Method used

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  • A biochar-loaded magnetic substance composite adsorption material and its preparation method and application method
  • A biochar-loaded magnetic substance composite adsorption material and its preparation method and application method
  • A biochar-loaded magnetic substance composite adsorption material and its preparation method and application method

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Effect test

Embodiment 1

[0034] The preparation method of the biochar-loaded magnetic substance composite adsorption material of this embodiment comprises:

[0035] (1) Preparation of biomass: Extrude the juice of fresh sugarcane with a sugarcane squeezer to obtain bagasse. The bagasse dried under natural conditions is pulverized with a pulverizer, and successively sieved with 100 mesh and 200 mesh sampling sieves to obtain biomass sugarcane powder;

[0036] (2) Preparation of biomass and metal ion mixture: the biomass sugarcane powder, cobalt chloride hexahydrate, and nickel chloride hexahydrate obtained in step 1) are mixed according to a mass ratio of 1:1.5:1.5 and placed on a glass mortar Dry grinding and mixing to obtain a uniform mixture of biomass and metal ions;

[0037] (3) Preparation of biochar-loaded magnetic nanoparticle adsorbent: put the uniformly ground mixture into a porcelain boat, then put it into a tube furnace, and pass argon gas into the tube furnace to exhaust the air. Under t...

Embodiment 2

[0043] The preparation method of the biochar-loaded magnetic substance composite adsorption material of this embodiment comprises:

[0044] (1) Preparation of biomass: Extrude the juice of fresh sugarcane with a sugarcane squeezer to obtain bagasse. The bagasse dried under natural conditions is pulverized with a pulverizer, and successively sieved with 100 mesh and 200 mesh sampling sieves to obtain biomass sugarcane powder;

[0045] (2) Preparation of biomass and metal ion mixture: the biomass sugarcane powder, cobalt chloride hexahydrate, and nickel chloride hexahydrate obtained in step 1) are mixed according to a mass ratio of 2:1:2 and placed on an agate mortar Dry grinding and mixing to obtain a uniform mixture of biomass and metal ions;

[0046] (3) Preparation of biochar-loaded magnetic nanoparticle adsorbent: put the uniformly ground mixture into a porcelain boat, then put it into a tube furnace, and pass argon gas into the tube furnace to exhaust the air. Under the pr...

Embodiment 3

[0050] The preparation method of the biochar-loaded magnetic substance composite adsorption material of this embodiment comprises:

[0051] (1) Preparation of biomass: Extrude the juice of fresh sugarcane with a sugarcane squeezer to obtain bagasse. The bagasse dried under natural conditions is pulverized with a pulverizer, and successively sieved with 100 mesh and 200 mesh sampling sieves to obtain biomass sugarcane powder;

[0052] (2) Preparation of biomass and metal ion mixture: the biomass sugarcane powder, cobalt chloride hexahydrate, and nickel chloride hexahydrate obtained in step 1) are mixed according to a mass ratio of 2:2:1 and placed on an agate mortar Dry grinding and mixing to obtain a uniform mixture of biomass and metal ions;

[0053] (3) Preparation of biochar-loaded magnetic nanoparticle adsorbent: put the uniformly ground mixture into a porcelain boat, then put it into a tube furnace, and pass argon gas into the tube furnace to exhaust the air. Under the ...

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Abstract

The invention discloses a biochar-supported magnetic substance composite adsorption material, and a preparation method and application method thereof, and belongs to the field of water treatment. The biochar-supported magnetic substance composite adsorption material is prepared by the following steps: mixing and uniformly grinding a biomass, a cobalt salt and a nickel salt to obtain a mixture, calcining the obtained mixture under the protection of inert gas, and performing cooling. The preparation scheme requires few steps, is environment-friendly, and has broad industrial production prospect, and the biochar-supported magnetic substance composite adsorption material prepared by the preparation method has a good adsorption effect.

Description

technical field [0001] The invention discloses a biochar-loaded magnetic substance composite adsorption material, a preparation method and an application method thereof, and belongs to the research field of comprehensive utilization of biomass waste. Background technique [0002] Most of the dyes discharged from industries such as textiles, papermaking, and cosmetics are toxic and reduce the light transmittance of water bodies, causing serious pollution to water bodies. [0003] Activated carbon adsorption is the main means to remove dyes from wastewater, but the high preparation cost of activated carbon limits its application. In the vast rural areas, a large amount of agricultural biomass such as wheat straw, rice straw, corn stalk, and bagasse is produced every year. These biomasses are rich in polar groups such as hydroxyl, aldehyde, ether, and carboxyl, which are easy to interact with dye molecules. function to adsorb dye molecules. The biggest advantage of agricultur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/30C02F101/34C02F101/36C02F101/38
CPCB01J20/0225B01J20/0288B01J20/20B01J20/28009B01J20/28026B01J20/28057B01J2220/4825C02F1/281C02F1/288C02F2101/308C02F2101/34C02F2101/36C02F2101/38C02F2101/40
Inventor 牛静胡鹏柳准刘卉赵梦溪刘景民
Owner HUANGHUAI UNIV
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