Metal nanometer photocatalyst compound material and preparation method thereof

A metal nano and photocatalyst technology, applied in the field of composite materials, can solve the problems of instability, weakened visible light catalytic ability, and unstable visible light reaction, and achieve the effect of improving conversion efficiency and decomposing nitrogen oxides.

Inactive Publication Date: 2007-05-16
贝多丽生物科技股份有限公司
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Problems solved by technology

In response to the demand for visible light photocatalysts, some photocatalysts are also ion-modified so that their energy levels are within the absorption range of visible light. However, such ion-modified photocatalysts are nothing more than implanted transition metal ions (Cr, V, Ag) And non-metallic ions (C, N, H), etc.
Most of these ion-implanted photocatalysts have relatively unstable energy levels at the point of implantation, so the reaction to visible light is not very stable, and their visible photocatalytic ability tends to weaken over time.

Method used

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  • Metal nanometer photocatalyst compound material and preparation method thereof
  • Metal nanometer photocatalyst compound material and preparation method thereof
  • Metal nanometer photocatalyst compound material and preparation method thereof

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Embodiment Construction

[0026] The present invention discloses a core shell metal nano-photocatalyst composite material, hoping to use the surface electro-optic resonance effect of metal nanoparticles to provide photocatalysts with the ability to utilize sunlight other than ultraviolet light bands. In order to make the description of the present invention more detailed and complete, two preferred embodiments are given to illustrate the present invention. Please refer to the following descriptions and cooperate with the following diagrams.

[0027] The core shell metal nanophotocatalyst composite material disclosed by the present invention refers to a metal particle with a nanometer particle size as the core, and titanium dioxide particles with a nanometer particle size grow outside the nucleus to form a shell layer. of composite materials. Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of a core shell metal nanophotocatalyst composite material disclosed in the present invention. ...

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Abstract

The invention relates to a metal nanometer optical catalyst composite, wherein it comprises a corn as metal nanometer particle; a frame as titania nanometer particle. And the production comprises firs forming a titania nanometer particle solution; adding multi-group composite with first and second function groups into the solution, said titania particles are connected to the composite via the first function group; adding metal nanometer particles to react and combine the second function group. The inventive catalyst can use visible light to decompose formaldehyde, etc, while it can improve the conversation efficiency of photoelectric battery.

Description

technical field [0001] The invention relates to a composite material, in particular to a core shell metal nano photocatalyst composite material and a manufacturing method thereof. Background technique [0002] A catalyst is a chemical substance that itself can reduce the energy (activation energy) required for a chemical reaction to promote the occurrence of a chemical reaction or accelerate the rate of the reaction, but it does not change itself. [0003] Photocatalysts use the energy of light sources of specific wavelengths to produce catalytic effects under the irradiation of light sources. These free radicals with strong oxidizing power can decompose almost all organic substances that are harmful to the human body or the environment, and make the surrounding oxygen and molecules excited into extremes. Active ·OH and ·O 2 Free radicals can sterilize, inhibit viruses, deodorize, and decompose organic matter. [0004] Titanium Dioxide (TiO 2 ) is most often used as a cle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J37/00B01J21/06B01J23/50B01J23/52
Inventor 张仕欣邓嘉莹刘芳瑜廖骏伟
Owner 贝多丽生物科技股份有限公司
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