Method for preparing a gel containing nanometer titanium...

Details Method for preparing a gel containing nanometer titanium... Method for preparing a gel containing nanometer titanium...

2006-08-15

2006-08-15

Silverman, Stanley S. (Department: 1754)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C423S069000, C977S811000, C502S350000

Reexamination Certificate

active

07090823

ABSTRACT:
A method for preparing a gel containing nanometer titanium dioxide particles for visible light photocatalysis, the method has the following acts of: obtaining titanium hydroxide; inverting titanium hydroxide into titanium dioxide by adding an oxidant, an improving agent, an optional acid, and an optional surfactant to compose a solution; and aging the solution by heating to make the solution become a gel. The gel made by the present invention has photocatalystic characteristic and self-cleaning efficiency particularly in visible light but not in ultraviolet light as conventional gel.

REFERENCES:
patent: 6107241 (2000-08-01), Ogata et al.
patent: 6429169 (2002-08-01), Ichinose
patent: 6627579 (2003-09-01), Sakatani et al.
patent: 6919029 (2005-07-01), Meng et al.
patent: 2005/0013766 (2005-01-01), Imura et al.
patent: 2006/0034752 (2006-02-01), Lin et al.

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