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Biomass magnetic carbon material for degrading organic dye

A technology of organic dyes and carbon materials, applied in the direction of inorganic chemistry, alkali metal compounds, chemical/physical processes, etc., can solve the problems of high preparation cost, unsuitable for large-scale preparation, complicated process, etc., achieve high specific surface area, repeated use Good effect and simple preparation process

Inactive Publication Date: 2015-04-15
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation cost of this material is high and the process is complicated, so it is not suitable for mass production for sewage treatment process

Method used

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  • Biomass magnetic carbon material for degrading organic dye
  • Biomass magnetic carbon material for degrading organic dye
  • Biomass magnetic carbon material for degrading organic dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1 A biomass magnetic carbon material for degrading organic dyes, which is made by mixing biological raw materials and iron precursors at a ratio of 15kg:1kg.

[0039] Wherein: the iron precursor is ferric ammonium oxalate. Biological raw material refers to peanut shells.

[0040] The preparation method of the biomass magnetic carbon material of the degradation organic dye comprises the following steps:

[0041] ⑴ Weigh according to the ratio.

[0042] ⑵ Grinding the biological raw material to 100-200 mesh to obtain the crushed raw material;

[0043] (3) dissolving the iron precursor in water at a ratio of 1kg:70L to obtain an aqueous solution containing the iron precursor;

[0044] (4) fully immersing the pulverized raw material in the aqueous solution containing the iron precursor, and obtaining the soaked raw material after 10 hours;

[0045] (5) The impregnated raw materials are dried at a temperature of 80° C. to constant weight to obtain dried raw ...

Embodiment 2

[0049] Example 2 A biomass magnetic carbon material for degrading organic dyes, which is made by mixing biological raw materials and iron precursors at a ratio of 10kg:1kg.

[0050] Among them: the iron precursor is a mixture of ferric ammonium oxalate and copper nitrate, and the mass ratio of ferric ammonium oxalate to copper nitrate is 90 kg:10 kg. Biological raw material refers to straw.

[0051] The preparation method of the biomass magnetic carbon material of the degradation organic dye comprises the following steps:

[0052] ⑴ Weigh according to the ratio.

[0053] ⑵ Grinding the biological raw material to 100-200 mesh to obtain the crushed raw material;

[0054] (3) dissolving the iron precursor in water at a ratio of 1kg:40L to obtain an aqueous solution containing the iron precursor;

[0055] (4) fully immersing the pulverized raw material in the aqueous solution containing the iron precursor, and obtaining the soaked raw material after 8 hours;

[0056] (5) ...

Embodiment 3

[0060] Example 3 A biomass magnetic carbon material for degrading organic dyes, which is made by mixing biological raw materials and iron precursors at a ratio of 2kg:1kg.

[0061] Among them: the iron precursor is a mixture of ferric ammonium oxalate and manganese nitrate, and the mass ratio of ferric ammonium oxalate to manganese nitrate is 90 kg:10 kg. Biological feedstock refers to corn cobs.

[0062] The preparation method of the biomass magnetic carbon material of the degradation organic dye comprises the following steps:

[0063] ⑴ Weigh according to the ratio.

[0064] ⑵ Grinding the biological raw material to 100-200 mesh to obtain the crushed raw material;

[0065] (3) dissolving the iron precursor in water at a ratio of 1kg:10L to obtain an aqueous solution containing the iron precursor;

[0066] (4) fully immersing the pulverized raw material in the aqueous solution containing the iron precursor, and obtaining the soaked raw material after 6 hours;

[0067...

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Abstract

The invention relates to a biomass magnetic carbon material for degrading organic dyes. The material is prepared by mixing biological raw materials and iron precursors at a ratio of 2kg to 20kg: 1kg. At the same time, the invention also discloses a preparation method of the biomass magnetic carbon material. The invention is low in price, high in efficiency, and has dual functions of adsorption, catalysis and degradation. It is used as a high-efficiency catalyst in the process of constructing a Fenton-like system to treat high-concentration wastewater, and can completely oxidize and degrade organic dyes. It has high catalytic activity and high degradation effect. A Fenton-like reaction based on a homogeneously catalyzed reaction of ferrous ions and ferric oxide as a catalyst.

Description

technical field [0001] The invention relates to a magnetic carbon material, in particular to a biomass magnetic carbon material for degrading organic dyes. Background technique [0002] Because activated carbon has the advantages of porous structure, large specific surface area, strong adsorption, and poor sensitivity to toxic substances, it has a good application prospect in the existing sewage treatment. Later, due to the loading of iron oxides, activated carbon is magnetic and beneficial to recovery, etc., making magnetic carbon a research hotspot. Zhang Chaohong (Application No. 201110106626.7) and others soaked activated carbon in iron salt and nickel salt solution, stirred magnetically for 10-13 hours, filtered, washed, dried, and then calcined to obtain the product. This kind of magnetic carbon obtained by directly loading ferroferric oxide on commercial activated carbon makes the ferric oxide on the load easy to leach in the process of sewage treatment, resulting in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/30B01J20/28B01J23/745C02F1/72C02F1/28
Inventor 周林成马俊俊张荷邵彦明李彦锋
Owner LANZHOU UNIVERSITY
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