Method for preparing mesoporous material through microwave-assisted loading of nanometer silver oxide

A nano-silver oxide and mesoporous material technology is applied in the field of microwave-assisted loading of nano-silver oxide to prepare mesoporous materials, which can solve the problems of high production cost, large amount of MAO, inability to use, etc., and achieves fast reaction rate, good dispersibility, The effect of increasing the load

Inactive Publication Date: 2017-01-04
QINGDAO LANNONGGU AGRI PROD RES & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the large amount of MAO required to achieve high activity of the mesoporous materials loaded with metal catalysts, the production cost is high, and the obtained polymer ha

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for preparing mesoporous materials by microwave-assisted loading of nano-silver oxide is characterized in that it specifically includes the following steps:

[0022] (1) Solution A: Mix the load solution composed of zinc acetate dihydrate, cobalt acetylacetonate and manganese acetylacetonate in a weight ratio of 2:3:5, and silver nitrate, and add 3 times the volume of deionization Water, stir well, filter at room temperature to obtain a saturated solution of metal ions, and store the saturated solution in an ice water bath at 0-5°C;

[0023] (2) Solution B: Mix graphite oxide and furfuryl alcohol according to a weight ratio of 2:7, and ultrasonically treat for 4 hours at an ultrasonic power of 500W, and control the microwave power density to 6 kW·m -2 , The irradiation time is 40min, and solution B is obtained;

[0024] (3) Preliminary impregnation: select the mesoporous material to be processed, place it in solution A, keep the temperature constant at 5°C, and impreg...

Embodiment 2

[0028] A method for preparing mesoporous materials by microwave-assisted loading of nano-silver oxide is characterized in that it specifically includes the following steps:

[0029] (1) Solution A: Mix the load solution composed of zinc acetate dihydrate, cobalt acetylacetonate and manganese acetylacetonate in a weight ratio of 2:3:5, and silver nitrate, and add 3 times the volume of deionization Water, stir well, filter at room temperature to obtain a saturated solution of metal ions, and store the saturated solution in an ice water bath at 0-5°C;

[0030] (2) Solution B: Mix graphite oxide and furfuryl alcohol according to a weight ratio of 2:7, and ultrasonically treat for 3.5h under the condition of an ultrasonic power of 600W, and control the microwave power density to 7kW·m -2 , The radiation time is 45min, and solution B is obtained;

[0031] (3) Preliminary impregnation: select the mesoporous material to be processed, place it in solution A, keep the temperature constant at 5...

Embodiment 3

[0035] A method for preparing mesoporous materials by microwave-assisted loading of nano-silver oxide is characterized in that it specifically includes the following steps:

[0036] (1) Solution A: Mix the load solution composed of zinc acetate dihydrate, cobalt acetylacetonate and manganese acetylacetonate in a weight ratio of 2:3:5, and silver nitrate, and add 3 times the volume of deionization Water, stir well, filter at room temperature to obtain a saturated solution of metal ions, and store the saturated solution in an ice water bath at 0-5°C;

[0037] (2) Solution B: Mix graphite oxide and furfuryl alcohol according to a weight ratio of 2:7, and ultrasonically treat for 3 hours at an ultrasonic power of 700W, and control the microwave power density to 8kW·m -2 , The irradiation time is 40min, and solution B is obtained;

[0038] (3) Preliminary impregnation: select the mesoporous material to be processed, place it in solution A, keep the temperature constant at 5°C, and impregn...

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Abstract

The invention discloses a method for preparing mesoporous material through microwave-assisted loading of nanometer silver oxide. The method specifically includes the first step of preparing a solution A, the second step of preparing a solution B, the third step of carrying out primary dipping, the fourth step of carrying out deep dipping, and the fifth step of preparing the finished product. According to the method, granules containing Zn and Ag and the graphite oxide component are attached to the surface of the mesoporous material through microwave ultrasonic loading, metal ions and graphite oxide form a double-layer structure on the surface of the mesoporous material, the loss rate of graphite oxide is low, and thus cost is reduced; by the adoption of microwave-assisted loading, the method has the advantages that reaction conditions are mild, the reaction speed is high, and the yield is high; the pH value is regulated to be 5-6 with a hydrogen chloride solution, the loading capacity of metallic oxide is improved, and the dispersity of metallic oxide is good; a titanium dioxide catalyst is sprayed on the surface of the mesoporous material blow-dried with nitrogen, integration of the mesoporous material and the surface-loaded material is achieved, and the titanium dioxide catalyst is high in loading efficiency, makes the polymerization process easy to control, accelerates the reaction process and improves productivity.

Description

Technical field [0001] The invention belongs to the technical field of improved methods for mesoporous materials, and specifically relates to a method for preparing mesoporous materials by microwave-assisted loading nano-silver oxide. Background technique [0002] Mesoporous materials have the characteristics of extremely high specific surface area, regular and ordered pore structure, narrow pore size distribution, and continuously adjustable pore size, which make it difficult to complete the adsorption and separation of macromolecules in many microporous zeolite molecular sieves, especially Play a role in catalytic reactions. Therefore, since its birth, mesoporous materials have attracted a wide range of international interest in multidisciplinary research fields such as physics, chemistry, biology, materials and information, and have become one of the hot frontiers of interdisciplinary in the world. [0003] The most commonly used synthesis method is hydrothermal synthesis, and ...

Claims

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Application Information

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IPC IPC(8): C08F4/02C08F4/18C08F4/10C08F10/00
Inventor 李红伟
Owner QINGDAO LANNONGGU AGRI PROD RES & DEV
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