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Preparation method of a magnetically ordered mesoporous fe3o4@mcm-48 composite adsorption material

A composite adsorption material and magnetic technology, applied in chemical instruments and methods, alkali metal compounds, other chemical processes, etc., can solve the limitations of the wide application of magnetic mesoporous composite adsorption materials, long preparation period of hydrothermal method, consumption of template agent Large and other problems, to achieve the effect of low cost, low toxicity, easy operation

Active Publication Date: 2019-06-07
BIOBASE BIODUSTRY (SHANDONG) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are following problems in the prior art: (1) magnetic composite adsorption material Fe 3 o 4 The preparation process of @MCM-48 is very cumbersome, the synthesis conditions are very harsh, and the synthesis time is long, so simplifying the preparation process is the technical problem that this paper wants to solve; (2) The hydrothermal synthesis method is the current magnetic composite adsorption material Fe 3 o 4 The main method of @MCM-48 molecular sieve, the hydrothermal method has a long preparation cycle, a large consumption of template agent, high energy consumption and high cost
These shortcomings limit the wide application of magnetic mesoporous composite adsorption materials to a certain extent.

Method used

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  • Preparation method of a magnetically ordered mesoporous fe3o4@mcm-48 composite adsorption material

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preparation example Construction

[0050] A magnetically ordered mesoporous Fe provided by the invention 3 o 4 The preparation method of @MCM-48 composite adsorption material comprises the following steps:

[0051] S1, take Fe 3 o 4 Dissolve in chloroform, ultrasonic 10 ~ 20min, to get a mixed solution;

[0052] S2, take the mixed solution obtained in S1 and add it to the aqueous solution containing cetyltrimethylammonium bromide, continue ultrasonic stirring for 3-8 minutes, raise the temperature of the solution to 50-70°C, and then continue to evaporate for 1-3 minutes , a solution of ferrite particles was obtained; the cetyltrimethylammonium bromide used in S2 was compared with the Fe used in S1 3 o 4 The ratio is 0.0005mol:0.05g;

[0053] S3, take the ferrite particle solution obtained in S2 and add it to cetyltrimethylammonium bromide-ethylene glycol-water solution, and stir for 5-15 minutes; then add ammonia water to adjust the pH to 11, then add absolute ethanol, Continue to stir; then add ethyl o...

Embodiment 1

[0057] A magnetically ordered mesoporous Fe 3 o 4 The preparation method of @MCM-48 composite adsorption material, the specific steps are as follows:

[0058] S1, take 0.1g ferrite Fe 3 o 4 Dissolved in 3ml of chloroform, 400W ultrasonic 15min, to obtain a mixed solution; used here is Fe 3 o 4 nanoparticles;

[0059] S2, take half the volume of the mixed solution obtained in S1 and add it to 25ml of 0.8g / 100ml cetyltrimethylammonium bromide (CTAB) aqueous solution (that is, add 0.0005molCTAB), continue 400W ultrasonic stirring for 5min, and The temperature of the solution was raised to 60°C, and then continued to evaporate for 2 minutes to remove the organic chloroform. At this time, a surfactant-stabilized ferrite particle solution was obtained, and the ferrite particles showed hydrophilicity;

[0060] S3, take the ferrite particle solution obtained in S2 and add it to 62g of cetyltrimethylammonium bromide-ethylene glycol-water solution, stir for 10min; then add ammonia...

Embodiment 2

[0064] A magnetically ordered mesoporous Fe 3 o 4 The preparation method of @MCM-48 composite adsorption material, the specific steps are the same as in Example 1, the only difference is the Fe used in S1 3 o 4 The mass is 0.2g.

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Abstract

The invention belongs to thel field of magnetic composite material synthesis technology, and particularly discloses a preparation method of a magnetic ordered mesopore Fe3O4@MCM-48 composite adsorbingmaterial. The preparation method includes steps of combining a ferrite Fe3O4 grain and a mesoporous molecular sieve MCM-48; roasting in a muffle furnace at 450-650 DEG C, so as to obtain the Fe3O4@MCM-48 magnetic mesopore composite adsorbing material with a core-shell structure. The method is low in cost, low in toxicity, simple in operation, gentle in condition, and short in consumed time; the prepared material has magnetism and the mesoporous duct of the molecular sieve; the preparation method has huge prospect in absorption and separation, and drug carrier.

Description

technical field [0001] The technical field of magnetic composite material synthesis of the present invention, in particular to a magnetically ordered mesoporous Fe 3 o 4 Preparation method of @MCM-48 composite adsorbent material. Background technique [0002] spinel material Fe 3 o 4 It is an important ferrite material. Because of its strong magnetism, it has the functions of magnetic separation, fixation, marking and guidance. Many researchers like to choose it to prepare composite adsorption materials. The mesoporous material MCM-48 molecular sieve has a unique Structural characteristics, such as large specific surface area, uniform pore size, three-dimensional helical surface channel structure, good long-range periodicity and stable skeleton structure, etc., are active in adsorption separation, catalytic reaction, drug release control and semiconductor materials, electronic transition photosensitizers, In the field of main materials such as carbon fiber and nonlinear ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/18B01J20/28B01J20/30
CPCB01J20/0229B01J20/186B01J20/28009B01J20/28064B01J20/28066B01J20/28073B01J20/28076B01J20/28083
Inventor 林卿杨芳杨虎王瑞军何云
Owner BIOBASE BIODUSTRY (SHANDONG) CO LTD
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