A kind of preparation method of nano mesoporous material

A nano-mesoporous material and nano-mesoporous technology, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of complex processing, expensive templating agent, poor continuity of mesoporous materials, etc. , achieving great application prospects, avoiding synthesis difficulties, and simple synthesis methods

Active Publication Date: 2017-02-01
CHANGZHOU YINGZHONG NANO TECH
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  • Summary
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  • Claims
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AI Technical Summary

Problems solved by technology

In the synthesis process of the hard template method, the metal precursor needs to enter the channels of the mesoporous template, so there may be a problem of low channel occupancy of the precursor, which will lead to poor continuity of the synthesized mesoporous materials
In addition, the cost of using the formed mesoporous material as a template is high, and the removal of the template is a relatively cumbersome process, which limits the large-scale industrial application of this method.
[0006] All in all, the traditional preparation method of mesoporous materials is difficult to achieve large-scale industrial production due to the high cost of templates, complicated post-processing, and high cost.
Moreover, it is difficult to simultaneously control the composition, crystal form and particle size of mesoporous materials
In addition, traditional synthesis methods cannot be widely used in the preparation of various mesoporous metal oxides and metal materials due to various limitations.

Method used

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  • A kind of preparation method of nano mesoporous material
  • A kind of preparation method of nano mesoporous material
  • A kind of preparation method of nano mesoporous material

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0031] Experimental Example 1: Nano Mesoporous Oxide NiO

[0032] Synthetic raw materials: sucrose, urea, Ni(NO 3 ) 2· 6H 2 O (nickel nitrate)

[0033] (1) Weigh 100 g sucrose, 1 g urea and 1 g Ni(NO 3 ) 2· 6H 2 O in a 100 mL beaker, then place the beaker in a heatable magnetic stirrer. The temperature of the magnetic stirrer was raised to 100°C, and the stirring was continued for 60 minutes until the drug in the beaker formed a uniform molten liquid.

[0034] (2) Put the beaker containing the molten liquid sample in (1) into an oven at 120°C, and react for 48 hours to obtain a dark brown puffy solid.

[0035] (3) Grind the product obtained in (2) with a mortar and put it in a crucible. The product obtained by the reaction is in N 2 Heat treatment at 1100°C for 2 hours under protection.

[0036] (4) Calcining the black solid described in (3) at 450°C in air for 24 hours to obtain nanometer mesoporous metal oxide NiO. The XRD test shows that the particle size of nano...

experiment example 2

[0037] Experimental Example 2: Nano Mesoporous MgO-Al 2 o 3

[0038] Synthetic raw materials: glucose, urea, Mg(NO 3 ) 2· 6H 2 O (magnesium nitrate), Al(NO 3 ) 3· 9H 2 O (aluminum nitrate)

[0039] (1) Weigh 1 g glucose, 10 g urea, 0.1 g Mg(NO 3 ) 2· 6H 2 O and 0.1 g Al(NO 3 ) 3· 9H 2 O in a 100 mL beaker, then place the beaker in a heatable magnetic stirrer. The temperature of the magnetic stirrer was raised to 220°C, and the stirring was continued for 10 min until the medicine in the beaker formed a molten liquid.

[0040] (2) Put the beaker containing the molten liquid in (1) into an oven at 250°C and react for 1 hour to obtain a dark brown puffy solid.

[0041] (3) Grind the product obtained in (2) with a mortar and put it in a crucible. The product obtained by the reaction is in N 2 Heat treatment at 250°C for 40 hours under protection,

[0042] (4) Calcining the black solid described in (3) at 900°C in air for 7 hours to obtain nano-mesoporous MgO-Al 2...

experiment example 3

[0044] Experimental Example 3: Nano Mesoporous TiO 2

[0045] Synthetic raw materials: glucose, urea, TiOSO 4 (titanyl sulfate)

[0046] (1) Weigh 5 g of glucose and 1 g of urea into a 100 mL beaker, and then place the beaker in a heatable magnetic stirrer. The temperature of the magnetic stirrer was raised to 200°C, and the stirring was continued for 10 min until the drug in the beaker was in a molten state.

[0047] (2) Weigh 0.2 g TiOSO 4 And add it to the molten liquid mentioned in (1), and keep stirring for 10 minutes until the solution is clear. Then put the beaker into an oven at 200°C and react for 8 hours to obtain a dark brown puffy solid.

[0048] (3) Grind the product obtained in (2) with a mortar and put it in a crucible. The product obtained by the reaction was calcined at 700°C in the air for 7 hours to obtain nano-mesoporous TiO 2 . Figure 4 nanometer mesoporous TiO 2 The TEM picture, the nano-mesoporous TiO can be seen in the figure 2 It is rod-shap...

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Abstract

The invention relates to a method for manufacturing a nanometer mesoporous material and belongs to the technical field of mesoporous material synthesis. The feature that urea, sugar and metal salt can form an evenly-mixed solution at a certain temperature is used, a porous carbon template agent is formed at a home position after dehydration and carbonization are carried out on the porous carbon template agent and extra surfactants or mesoporous silica template agents are not needed. Afterwards, the porous carbon template agent receives high-temperature oxidation, the carbon template agent is removed, and a mesoporous metallic oxide is obtained. After restoration is carried out on the mesoporous metallic oxide, the mesoporous metal material is obtained. By changing the ratio of the raw materials, the reaction time, the heat processing temperature and other conditions, the nanometer mesoporous metal oxide or the mesoporous metal material of which the size, the crystalline phase and the composition can be controlled at the same time can be manufactured. The whole technology has the advantages of being simple in operation, green, friendly to the environment, low in cost and the like. The obtained mesoporous material can be widely applied to the aspects of industrial catalysis, adsorption, water treatment, the electrochemistry and the like.

Description

technical field [0001] The invention provides a method for preparing a nanometer mesoporous material, which belongs to the technical field of mesoporous material synthesis. Background technique [0002] Mesoporous materials are a new class of nanostructured materials that emerged rapidly in the 1990s. They have been highly valued by researchers in chemistry, materials science and physics since their birth, and have rapidly developed into interdisciplinary research hotspots. The International Union of Pure and Applied Chemistry (IUPAC) stipulates that porous solid materials can be divided into three categories: one is microporous solid (pore size less than 2nm), the second is mesoporous solid (pore size between 2-50 nm), and the third is Macroporous solid (pore diameter greater than 50 nm). Among them, mesoporous material is a new type of material with a pore size between micropores and macropores, which has a large specific surface area and a three-dimensional pore structur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/26B82Y40/00B82Y30/00B22F1/00
Inventor 姜兴茂陈震张耕杨凤丽孙龙徐运陆伟梁帅
Owner CHANGZHOU YINGZHONG NANO TECH
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