Method for synthesizing mesoporous nano material by employing solid-state reaction structure guiding technique

A structure-oriented, solid-state reaction technology, applied in chemical instruments and methods, molecular sieve compounds, chromium oxide/hydrate, etc.

Active Publication Date: 2008-09-17
PETROCHINA CO LTD +1
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Problems solved by technology

However, the mesoporous materials obtained by the traditional liquid phase synthesis system still face the challenge of thermal sta

Method used

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Embodiment Construction

[0008] Below, the technical characteristics of the present invention will be described in detail in conjunction with specific embodiments:

[0009] We select a strong base with high activity at room temperature (such as NaOH, KOH) as the reactive phase, so that it can chemically interact with inorganic precursors at room temperature to achieve a real solid-phase reaction, and then introduce two Under the induction of surfactants of different scales, crystallization and growth are carried out in a certain direction to form nano-oxide materials with a specific micropore-mesoporous double-channel structure. In order to make the solid-phase reaction proceed fully and thoroughly, the reactants are fully ground in advance to make the particle size as small as possible, increase the contact surface of the solid-phase reaction, and promote the diffusion and migration phenomenon during the solid-phase reaction. At the same time, in the process of solid-phase reaction, continuous grindi...

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Abstract

The invention relates to a composite solid-state reaction-surfactant templating coupling method to composing micro-dielectricpore composite channel nano-metal oxide method, which display the extent of preparing mesoporous nano-material using the method. The invention is characterized in that: compared to the liquidoid reaction method, the mesoporous structure is easier to modulate and the surface-active material is easier to pull off; the crystal characteristics, the nanometer dimension and the mesoporous property of the sample can be regulated through modulating the response factors conveniently; and the preponderance in structure do indicate the potential excellent properties in application field. Meanwhile, the solid-state reaction method has the advantages of simple technology, friendlier environment and reducing the sewage emission greatly and the production loading of sewage subsequent treatment facility.

Description

technical field [0001] The invention relates to a method for synthesizing micro-media composite pore channel nano metal oxide material by adopting solid-state reaction composite surfactant structure-oriented technology, which belongs to the synthesis and application field of nano-materials and mesoporous materials. The method mainly uses the solid-state reaction composite surfactant structure-oriented technology to adjust various synthesis factors to construct a microporous-mesoporous composite pore structure with regular pore structure and concentrated distribution, and at the same time, the obtained inorganic particles have nanoscale characteristics. Background technique [0002] The successful development of MCM-41 mesoporous molecular sieve not only breaks the application limitation of microporous molecular sieve in the fields of adsorption, shape-selective catalysis, adsorption and separation, but also broadens the preparation method of new materials. It enables people ...

Claims

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Application Information

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IPC IPC(8): C01G25/02C01G23/047C01G37/033C01F7/02C01B39/00C01B37/00
Inventor 刘欣梅阎子峰逯高清钱岭乔柯
Owner PETROCHINA CO LTD
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