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Preparation method of organic-inorganic modified carbon/montmorillonite composite adsorption material

An inorganic modification and composite material technology, which is applied in the field of air purification and composite materials, can solve the problems of restricting the application of air purification and high price, achieve the effect of environmental protection preparation cost and improve adsorption performance

Inactive Publication Date: 2017-06-20
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Activated carbon exhibits excellent adsorption performance due to its large specific surface area and rich functional groups, but its high price limits its application in the field of air purification

Method used

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  • Preparation method of organic-inorganic modified carbon/montmorillonite composite adsorption material
  • Preparation method of organic-inorganic modified carbon/montmorillonite composite adsorption material
  • Preparation method of organic-inorganic modified carbon/montmorillonite composite adsorption material

Examples

Experimental program
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Effect test

Embodiment 1

[0030] (1) Preparation of Inorganic Polymerized Hydroxyl Aluminum Cationic Pillars

[0031] At room temperature, weigh 0.05 mol of AlCl 3 Added to 0.6mol / L NaOH solution, so that OH in the mixed solution - with Al 3+ The molar ratio is 1:2.6; after uniform mixing, stir at room temperature for 24h.

[0032] (2) Preparation of inorganic modified montmorillonite adsorption material

[0033] Weigh 10g of montmorillonite, add it to the above-mentioned proppant solution (wherein the amount of the inorganic polyhydroxyaluminum cation proppant is 5mmol / g montmorillonite), stir at room temperature for 24h, centrifuge, and obtain the solid substance repeatedly with distilled water Wash to free of Cl - It was then dried at 80°C and ground with an agate mortar.

[0034] (3) Preparation of organic-inorganic modified carbon / montmorillonite composites

[0035] Weigh 3 g of inorganically modified montmorillonite and 5 g of glucose and add them to deionized water, stir for 1 h, transfer ...

Embodiment 2

[0038] (1) Preparation of Inorganic Polymerized Hydroxyl Aluminum Cationic Pillars

[0039] At 60°C, weigh 0.04mol AlCl 3 Added to 0.8mol / L Na 2 CO 3 solution, so that OH in the mixed solution - with Al 3+ The molar ratio is 2.6:1; after uniform mixing, stir at room temperature for 24h.

[0040] (2) Preparation of inorganic modified montmorillonite adsorption material

[0041] Weigh 10g of montmorillonite, add it to the above-mentioned proppant solution (wherein the amount of the inorganic polyhydroxyaluminum cation proppant is 5mmol / g montmorillonite), stir at room temperature for 24h, centrifuge, and obtain the solid substance repeatedly with distilled water Wash to free of Cl - Then dry it at 80°C and grind it with an agate mortar.

[0042] (3) Preparation of organic-inorganic modified carbon / montmorillonite composites

[0043] Weigh 3 g of inorganically modified montmorillonite and 9 g of fructose and add them to deionized water, stir for 1 h, transfer the solution...

Embodiment 3

[0046] (1) Preparation of Inorganic Polymerized Hydroxyl Aluminum Cationic Pillars:

[0047] At 60°C, weigh 0.10mol AlCl 3 Added to 1.6mol / L Na 2 CO 3 solution, so that OH in the mixed solution - with Al 3+ The molar ratio is 2.6:1; after uniform mixing, stir at room temperature for 24h.

[0048] (2) Preparation of inorganic modified montmorillonite adsorption material

[0049] Weigh 10g of montmorillonite, add it to the above-mentioned proppant solution (wherein the amount of the inorganic polyhydroxyaluminum cationic proppant is 10mmol / g montmorillonite), stir at room temperature for 24h, centrifuge, and the obtained solid matter is repeatedly mixed with distilled water. Wash to free of Cl - Then dry it at 80°C and grind it with an agate mortar.

[0050] (3) Preparation of organic-inorganic modified carbon / montmorillonite composites

[0051] Weigh 3g of inorganically modified montmorillonite and 3g of maltose and add them to deionized water, stir for 1h, transfer the...

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Abstract

Belonging to the field of air purification, the invention discloses an organic-inorganic modified carbon / montmorillonite composite adsorption material. Na-montmorillonite is adopted as the main material, hydroxy-metal pillaring is carried out, then soluble sugar provides a carbon source, and under a hydrothermal condition, the organic-inorganic modified carbon / montmorillonite composite adsorption material can be synthesized. The organic-inorganic modified carbon / montmorillonite composite material obtained by the method provided by the invention is non-toxic, non-corrosive, environment-friendly and low in preparation cost, not only has the characteristics of porosity and high specific surface area of inorganic pillared montmorillonite, but also has the characteristic of high carbon content of organic montmorillonite, therefore has excellent adsorption properties to volatile organic exhaust gas, and has a maximum toluene adsorption capacity up to 39.8mg / g, thus having the potential of replacing other air purification adsorbents.

Description

technical field [0001] The invention relates to a modified montmorillonite adsorption material, in particular to the preparation of an inorganic polymerized hydroxyl metal cation in which soluble sugar is used as a modifier for organic-inorganic modification, and belongs to the field of composite materials and the field of air purification treatment . Background technique [0002] Volatile aromatic compounds are widely used chemical products, but in the process of production, use and treatment, they can enter the environment through various channels, causing pollution to the atmosphere, water and soil, such as benzene, toluene, xylene, etc. , Some of these compounds are highly toxic and can cause respiratory diseases, chronic lung diseases, and even carcinogenic and teratogenic hazards. Studies have shown that toluene, ethylbenzene and xylene can damage the central nervous system, while toluene also has blood and genetic reproductive toxicity, and can cause damage to human ...

Claims

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Application Information

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IPC IPC(8): B01J20/12B01J20/30B01D53/02
CPCB01J20/12B01D53/02B01D2257/70B01J20/20
Inventor 蔡卫权刘昌持刘立成
Owner WUHAN UNIV OF TECH
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