Preparation method for TiO2/SiO2-Ag-SiO2 nanocomposite film

A sio2-ag-sio2 and nano-composite technology, applied in the field of optoelectronic materials, can solve the problems of low utilization rate of sunlight and achieve the effects of improving photocatalytic efficiency, low preparation cost, and reducing the probability of recombination
CN102909008AInactive Publication Date: 2013-02-06HUBEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUBEI UNIV OF TECH
Publication Date
2013-02-06
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a preparation method for a TiO2 / SiO2-Ag-SiO2 nanocomposite film. The method comprises the steps of: injecting Ag ions and then forming Ag nanoparticles in a quartz glass substrate; and then depositing a TiO2 film on the surface of a silica substrate by virtue of direct-current reactive magnetron sputtering so as to obtain the TiO2 / SiO2-Ag-SiO2 composite film. The Ag nanoparticles prepared by the method provided by the invention are inlaid in quartz glass, thus greatly overcoming the problem that the Ag nanoparticles are oxidized. Via the nanocomposite structure prepared by the method provided by the invention, the absorption of titanium dioxide to an ultraviolet ray part is greatly improved, so that the photocatalytic efficiency is improved. The preparation method can be widely applied to the field of optoelectronics.
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Description

technical field

[0001] The present invention relates to a kind of TiO 2 / SiO 2 -Ag-SiO 2 The invention relates to a method for preparing a nanocomposite thin film, which belongs to the technical field of optoelectronic materials. Background technique

[0002] Environmental and energy issues are the two most concerned worldwide problems, and people have been looking for solutions to them. In 1972, the research paper published by Fujishima and Honda on Nature was the first to report TiO 2 The photoelectrochemical cell composed of a single crystal electrode and a Pt electrode to produce hydrogen by photodecomposition of water has triggered a research upsurge in the use of sunlight to directly decompose water to produce hydrogen at home and abroad, thus creating a new era of heterogeneous photocatalysis research. Under the irradiation of sunlight, due to the excitation of the ultraviolet light, the electrons in the valence band of titanium dioxide will be excited to t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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