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Preparation method of activated carbon supported titanium-pillared montmorillonite composite material

A technology of titanium pillared montmorillonite and composite materials, which is applied in the field of preparation of composite materials, can solve the problems of easy secondary pollution and poor treatment effect, and achieve the effect of good ion exchange performance and good molecular adsorption characteristics

Inactive Publication Date: 2018-09-21
GUIZHOU UNIV
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Problems solved by technology

[0004] The object of the present invention is to provide a preparation method of activated carbon-loaded titanium pillared montmorillonite composite material, so as to solve the problems that the existing heavy metal recovery method has poor treatment effect and is prone to secondary pollution.

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  • Preparation method of activated carbon supported titanium-pillared montmorillonite composite material

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Embodiment

[0026] Refer to attached figure 1 , the present embodiment provides a preparation method of activated carbon-supported titanium pillared montmorillonite composite material, specifically as follows:

[0027] Weigh 20g of calcium-based montmorillonite, immerse in 500ml of distilled water, stir and disperse with a magnetic stirrer, add 2.5g of sodium hexametaphosphate and stir for 3 hours, let it stand for 30 minutes, and use a centrifuge (3600r / min) to get the supernatant The solution was dried at a constant temperature at 80°C, and ground through a 200-mesh sieve to obtain the sodium-based montmorillonite product.

[0028] Weigh 4g of sodium montmorillonite, add 400ml of distilled water, stir and disperse to form a suspension with a concentration of 1%, mix 10ml of absolute ethanol, 10ml of tetrabutyl titanate and 2ml of glacial acetic acid to prepare A solution, 24ml 0.1mol Mix / L of HCl and 5ml of absolute ethanol to form B solution. Under magnetic stirring, slowly drop B so...

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Abstract

The invention provides a preparation method of an activated carbon supported titanium-pillared montmorillonite composite material. The method comprises the following steps: firstly, performing sodiumtreatment on calcium-based montmorillonite to obtain sodium-based montmorillonite, and then, uniformly dispersing the sodium-based montmorillonite in distilled water to prepare suspension; uniformly mixing absolute ethanol, tetrabutyl titanate and glacial acetic acid according to a certain proportion to prepare a solution A; mixing HCL and absolute ethanol to prepare a solution B; preparing a pillared agent by utilizing the solution A and the solution B; transferring the pillared agent into the sodium-based montmorillonite suspension, and performing intense stirring; adding a proper amount ofNaOH solution to adjust the pH of the mixed solution, and performing stirring at room temperature; and adding activated carbon powder without lime to finally obtain activated carbon supported titanium-pillared montmorillonite. The method provided by the invention solves the problems that an existing heavy metal recovery method has a poor treatment effect, easily causes secondary pollution and thelike. The invention belongs to the field of preparation of composite materials.

Description

technical field [0001] The invention relates to a method for preparing a composite material, belonging to the field of composite material preparation. Background technique [0002] Heavy metal pollution threatens human health. Sewage discharged from mining, nonferrous metals, metallurgy and chemical industries often contains heavy metal ions such as Pb2+, Cd2+ and Cu2+. Excessive intake of heavy metal ions in the human body will cause poisoning, causing diseases such as anemia, osteoporosis and coronary heart disease. Therefore, it is urgent to strengthen the treatment of heavy metal ions in sewage. According to the different removal methods of heavy metal ions, the treatment methods of heavy metal wastewater can be divided into two categories: first, the dissolved heavy metal ions are converted into insoluble heavy metal compounds. This method is widely used, but the recovery of heavy metals is more complicated. The cost is higher; second, concentration and separation ar...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F101/20
CPCB01J20/12B01J20/20C02F1/283C02F2101/20
Inventor 庹必阳赵徐霞
Owner GUIZHOU UNIV
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