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A modified ordered mesoporous organosilicon material and its preparation method

A mesoporous organosilicon and organosilicon technology, applied in chemical instruments and methods, water/sludge/sewage treatment, water pollutants, etc., can solve the problems of limited adsorption capacity and low recycling rate, and improve adsorption performance. Effect

Active Publication Date: 2019-11-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to research, there are many kinds of adsorption materials used to treat bisphenol A in water, including activated carbon, porous resin, carbon nanomaterials, biopolymers, etc. However, for these materials, either the adsorption capacity is limited or the reuse Therefore, it is very necessary to develop a material that can efficiently adsorb bisphenol A

Method used

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  • A modified ordered mesoporous organosilicon material and its preparation method
  • A modified ordered mesoporous organosilicon material and its preparation method
  • A modified ordered mesoporous organosilicon material and its preparation method

Examples

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preparation example Construction

[0021] The PMO material is commercially available or can be prepared. The preparation of the PMO material can be carried out according to conventional methods in the art, for example, the preparation method of the PMO material can include: polyoxyethylene-polyoxypropylene-polyoxyethylene (P123) is dissolved in an aqueous solution of potassium chloride , followed by adding hydrochloric acid solution and the bridging silsesquioxane (such as 1,2-bistrimethoxysilylethane, BTME), then stirring and mixing at 10-60°C for 1-30 minutes and standing for 5 -50 hours, then react in an autoclave at 80-120°C for 5-50 hours, collect the solid product after the reaction, and separate the PMO material from the solid product.

[0022] In the above method for preparing PMO materials, the weight ratio of the amount of P123 to the amount of bridged silsesquioxane can be 100:80-200, preferably 100:100-180, more preferably 100:130- 150.

[0023] In the above method for preparing PMO materials, the...

Embodiment 1

[0054] This example is used to illustrate the modified ordered mesoporous organosilicon material provided by the present invention and its preparation method.

[0055] Disperse 2.0g of PMO in 50mL of N,N-dimethylformamide solution, stir to disperse evenly, then add 4.0mL of vinyltrimethoxysilane, and then add 2.0mL of ammonia water at a feeding rate of 2mL / min, The pH of the reaction system was set to 8, and the reaction system was stirred at room temperature for 24 h under the protection of nitrogen. After the reaction, the reaction mixture was filtered, and the solid material was washed with N,N-dimethylformamide (DMF), deionized water, and acetone respectively, and the obtained solid was vacuum-dried at 100°C to obtain a surface-modified ordered Mesoporous silicone materials.

[0056] Weigh 1g of the obtained dried solid, put it into a round-bottomed flask, add 50ml of toluene and 0.4ml of styrene to it, and then add 2mg of azoisobutyronitrile, stir to make it evenly mixed...

Embodiment 2

[0058] This example is used to illustrate the modified ordered mesoporous organosilicon material provided by the present invention and its preparation method.

[0059] The modified ordered mesoporous organosilicon material was prepared according to the method of Example 1, except that the amount of styrene added was 0.8 mL, so that the modified ordered mesoporous organosilicon material P2 was prepared.

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Abstract

The invention relates to the field of functional materials, and discloses a modified ordered mesopore organosilicon material and a preparation method thereof. The modified ordered mesopore organosilicon material contains a modified ordered mesopore organosilicon material, oligomeric polystyrene and an organosilane compound as shown in formula (1), wherein R1, R2 and R3 are respectively and independently methyl, methoxyl, ethyoxyl or chlorine; and R1, R2 and R3 are the same or different. The preparation method of the modified ordered mesopore organosilicon material comprises the following steps: dispersing the ordered mesopore organosilicon material into an organic solvent so as to obtain a mixed fluid, enabling the mixed fluid, the organosilane compound and an alkaline agent to be in mixed contact in an inert atmosphere so as to obtain the ordered mesopore organosilicon material through surface modification; and then, under the existence of an initiator, carrying out a polymerization reaction on the ordered mesopore organosilicon material through surface modification and styrene in the inert atmosphere. The modified ordered mesopore organosilicon material disclosed by the invention has a relatively high adsorptive property for pollutant bisphenol A in water.

Description

technical field [0001] The invention relates to the field of functional materials, in particular to a modified ordered mesoporous organic silicon material, a method for preparing the modified ordered mesoporous organic silicon material, and a modified ordered mesoporous organic silicon material prepared by the method. silicon material. Background technique [0002] As we all know, bisphenol A, as an important organic chemical raw material, is usually used in the field of polymer materials. With the deepening of research, it is found that bisphenol A is similar to estrogen, can cause problems such as human endocrine disorders, and seriously endanger human health. Many countries have listed it on the list of toxic substances. Therefore, how to deal with bisphenol A in water has become an important proposition in scientific research. So far, a variety of treatment methods have been reported, including adsorption, biodegradation, catalytic oxidation, etc., and among these metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/12C08F212/08C02F1/28C02F101/34
CPCC02F1/285C02F2101/345C08F283/124C08F212/08
Inventor 关敏毕海鹏谢明军黄铃杨力杨娟
Owner CHINA PETROLEUM & CHEM CORP
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