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 are

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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Example Embodiment

[0029] Example 1

[0030] (1) Preparation of inorganic polymeric hydroxyaluminum cationic pillaring agent

[0031] At room temperature, weigh 0.05mol of AlCl 3 Add to 0.6mol / L NaOH solution to make 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 pillaring agent solution (in which the amount of inorganic polymeric hydroxyaluminum cationic pillaring agent is 5mmol / g montmorillonite), stir at room temperature for 24h, centrifuge, and the obtained solid substance is repeated with distilled water Wash to no Cl - Until then, it is dried at 80°C and ground with an agate mortar.

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

[0035] Weigh 3g of inorganic modified montmorillonite and 5g of glucose into deionized water, stir for 1h, tr...

Example Embodiment

[0037] Example 2

[0038] (1) Preparation of inorganic polymeric hydroxyaluminum cationic pillaring agent

[0039] Weigh 0.04mol AlCl at 60℃ 3 Add to 0.8mol / L Na 2 CO 3 Solution so that the OH in the mixed solution - With Al 3+ The molar ratio is 2.6:1; after uniformly 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 pillaring agent solution (in which the amount of inorganic polymeric hydroxyaluminum cationic pillaring agent is 5mmol / g montmorillonite), stir at room temperature for 24h, centrifuge, and the obtained solid substance is repeated with distilled water Wash to no Cl - After that, dry at 80°C and grind with an agate mortar.

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

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

Example Embodiment

[0045] Example 3

[0046] (1) Preparation of inorganic polymeric hydroxyaluminum cationic pillaring agent:

[0047] Weigh 0.10mol AlCl at 60℃ 3 Added to 1.6mol / L Na 2 CO 3 Solution so that the OH in the mixed solution - With Al 3+ The molar ratio is 2.6:1; after uniformly 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 pillaring agent solution (in which the amount of inorganic polymeric hydroxyaluminum cationic pillaring agent is 10mmol / g montmorillonite), stir at room temperature for 24h, centrifuge, and the obtained solid substance is repeated with distilled water Wash to no Cl - After that, dry at 80°C and grind with an agate mortar.

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

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

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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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