A photocatalyst

A photocatalyst, photocatalysis technology, applied in catalyst carrier, catalyst activation/preparation, physical/chemical process catalyst, etc., can solve problems such as reducing catalyst surface area and slowing down photocatalytic reaction
CN1350477AInactive Publication Date: 2002-05-22UNISEARCH LTD
0 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNISEARCH LTD
Publication Date
2002-05-22
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention relates generally to a relatively stable magnetic photocatalyst comprising an insulated magnetite core coated with a layer of photoactive titanium dioxide. In one example, the insulation layer is silicon dioxide which blocks direct electrical contact between the titanium dioxide and the magnetite.
Need to check novelty before this filing date? Find Prior Art

Description

field of invention

[0001] The present invention relates generally to photocatalysts and in particular, but not exclusively, to photocatalysts suitable for use in slurry-type photoreactors for degrading organic compounds or chemicals, such as those present in wastewater of, but not limited to, organic compounds or chemicals. Background of the invention

[0002] As pollutants, organic chemicals that can be found in wastewater of industrial or domestic origin must be removed or destroyed before being discharged into the environment. Such contaminants can also be found in groundwater and surface water that require treatment to achieve acceptable drinking water standards. Much of the natural purification of lagoons, ponds, streams, rivers and lakes is due to sunlight, which breaks down organic molecules into simpler molecules and eventually into carbon dioxide and other inorganic products. There are various sensitizers that speed up this natural purification process. Among tho...

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
Login to View More