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Magnetic carbon-based composite environmental material and preparation method and application thereof

A magnetic carbon and environmental technology, applied in separation methods, chemical instruments and methods, alkali metal compounds, etc., can solve the problems of secondary environmental hazards, small particle size of nanomaterials, separation, etc., to promote absorption and high adsorption force. , the effect of increasing strength

Active Publication Date: 2015-05-20
安徽久吾天虹环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small particle size of nanomaterials, it is difficult to separate them from the solution after use, which may cause secondary harm to the environment

Method used

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  • Magnetic carbon-based composite environmental material and preparation method and application thereof
  • Magnetic carbon-based composite environmental material and preparation method and application thereof
  • Magnetic carbon-based composite environmental material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Crushing rice stalks through a 40-mesh sieve to obtain wheat straw powder, crushing attapulgite and passing through a 70-mesh sieve to obtain attapulgite powder, and crushing goethite and passing through a 70-mesh sieve to obtain goethite powder. Mix 100 g of rice straw powder, 100 g of attapulgite powder, and 100 g of goethite powder (the mass ratio of rice straw, attapulgite and goethite is 1:1:1) to obtain a mixture a;

[0035] Add appropriate amount of alcohol (according to the standard of just dissolving the resin and curing agent) to dissolve 30g of Danbao brand E44 epoxy resin 6101 and 24g of Danbao brand low molecular weight 650 polyamide resin just enough, pour the dissolved liquid into the mixture a, stir After uniformity, dry naturally for 24 hours, and then dry at 105°C for 60 minutes to obtain mixture b; crush mixture b and pass through a 40-mesh sieve, and then hot-press at 100°C and 6MPa for 50 minutes to obtain a sample; Under the same conditions, the te...

Embodiment 2

[0037] The preparation method of the present embodiment is the same as in Example 1, except that the rice straw powder is 75g, the attapulgite powder is 150g, and the goethite powder is 75g, that is, the mass ratio of rice straw, attapulgite and goethite is 1: 2:1.

Embodiment 3

[0039] The preparation method of the present embodiment is the same as that of Example 1, and the difference is that rice stalk powder 150g, attapulgite powder 75g, and goethite powder 75g, that is, the mass ratio of rice stalk, attapulgite and goethite is 2: 1:1.

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Abstract

The invention discloses a magnetic carbon-based composite environmental material and a preparation method and application thereof. The magnetic carbon-based composite environmental material is characterized by comprising the following raw materials: attapulgite, goethite, rice straw, an adhesive and a curing agent. The preparation method comprises the following steps: mixing, dipping, performing hot pressing and sintering. The obtained composite material can be used for removing salt in seawater so as to desalinate the seawater or removing nitrogen and phosphorus in water. According to the magnetic carbon-based composite environmental material disclosed by the invention, the bending strength is 12MPa, the mass susceptibility is 11.6*10<-4>m3 / kg, the electrical resistivity is 1.731Ohm.cm, the apparent porosity is 63.9 percent, and the phosphorus removal effect can be 98 percent.

Description

1. Technical field [0001] The invention belongs to the field of environmental materials, in particular to a magnetic carbon-based composite environmental material based on rice straw and goethite, a preparation method and application thereof. 2. Background technology [0002] As we all know, rice straw is a very common crop waste in rural areas. Its traditional treatment method is burning in the field. This treatment method not only pollutes the air, but also leads to the death of microorganisms in the soil, hardening of the land, and loss of soil fertility. decline and other adverse consequences. In the current society where PM2.5 continues to explode, how to deal with these misplaced resources has become a new problem faced by people. As an emerging material, wood ceramics is a new type of porous carbon material that is made of waste wood materials impregnated with thermosetting resins and carbonized in vacuum (or under nitrogen protection). [0003] Eutrophication refer...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28C02F1/469
CPCB01J20/24B01J20/28009B01J20/30B01J2220/4825C02F1/286C02F1/469
Inventor 吴文涛蔡传伦陈圳冯妍玥高扬
Owner 安徽久吾天虹环保科技有限公司
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