Preparation method and application of silver oxide/titanium dioxide composite nanofiber photocatalyst

A technology of composite nanofibers and titanium dioxide, applied in the field of environmental pollution control, can solve the problems of difficult to meet long-term catalytic requirements, difficult to settle, difficult to separate and recycle, etc., to improve the separable and reusable performance, the preparation method is simple, and the operation is simple. Ease of the process
CN103611531AInactive Publication Date: 2014-03-05CHANGCHUN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGCHUN UNIV OF TECH
Publication Date
2014-03-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a preparation method and application of a silver oxide / titanium dioxide composite nanofiber photocatalyst, belonging to the technical field of environment pollution control. The catalyst takes a silver oxide nanostructure as a catalytic active component material and titanium dioxide nanofiber as a carrier material. Through modifying the surface of titanium dioxide by the silver oxide, not only is the separation efficiency of a titanium dioxide photoproduction electron-hole pair increased, but also the light absorption range of the titanium dioxide is expanded to a visible light region, thus the photocatalytic degradation efficiency of the titanium dioxide to organic pollutants is increased. Silver oxide nanoparticles on the surface of the catalyst prepared by the invention are uniform in distribution, relatively small in particle size and controllable in component content; moreover, the composite catalyst is high in catalytic activity and stability, easy to separate, recover and recycle, relatively high in practical value and relatively wide in application prospect.
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Description

Technical field

[0001] The invention belongs to the technical field of environmental pollution control, and particularly relates to a method for preparing a silver oxide / titanium dioxide composite nanofiber photocatalyst and its application to the composite nanofiber photocatalyst. Background technique

[0002] With the development of global society and economy, environmental problems have become more and more serious. Among them, organic pollution in water bodies has seriously endangered human health. At present, people have carried out extensive research on the degradation of organic pollutants by semiconductor photocatalysts. Among them, the most representative semiconductor titanium dioxide has the advantages of safety, non-toxic side effects, stable physical and chemical properties, not easy to be corroded by light, low cost, no secondary pollution, etc., and has achieved great results in the photocatalytic degradation of toxic pollutants in water. Of great concern, many ad...

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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