Title:
【発明の名称】自己除染表面の製造方法
Document Type and Number:
Japanese Patent JP2002536147
Kind Code:
A
Abstract:
A method for producing a self decontaminating surface to decontaminate chemical and biological contaminants that are deposited on the surface and decontaminatable through reaction with free hydroxyl radicals. The method first includes determination of a surface to be treated and which is exposable to ultraviolet light. Second, a coating of nanoparticles of a transition metal oxide, non-limitedly exemplified by anatase titanium dioxide, is applied to the chosen surface. Application of the coating is accomplished by spraying heated nanoparticles or clusters thereof from a feed stock onto the surface to form a nanoparticle coating, with the nanoparticles being at a temperature of at least about 750° C. upon exit from a spray apparatus and of a size between about 5 nm and 100 nm. Finally, the treated surface is exposed to ultraviolet light and water moisture, either naturally from the environment or artifically, to thereby catalytically form free hydroxyl radicals that thereafter react with the contaminants to render them generally harmless.
Inventors:
Dimargio, Donald
Pirich, Ronald G.
Klein, John F.
Pirich, Ronald G.
Klein, John F.
Application Number:
JP2000597015A
Publication Date:
October 29, 2002
Filing Date:
January 20, 2000
Export Citation:
Assignee:
Northrop Grumman Corporation
International Classes:
A62D3/00; A62D3/176; A62D3/36; A62D5/00; B01J19/12; B05D1/10; B01J21/06; B01J35/02; B01J37/02; B05D5/00; B05D7/24; C23C4/10; A62D101/08; A62D101/40; (IPC1-7): B01J35/02; B01J19/12; B01J21/06; B01J37/02; B05D1/10; B05D5/00; B05D7/24
Attorney, Agent or Firm:
Hironobu Onda (1 person outside)