A method of producing a photocatalyst according to the invention comprises forming an amorphous titanium oxide and heat-treating it in an atmosphere containing oxygen, whereby a photocatalyst having a good photocatalysis can be obtained. In particular, the amorphous titanium oxide is obtained by using...http://www.google.com.tw/patents/US20050020444?utm_source=gb-gplus-share專利 US20050020444 - Method and apparatus for producing photocatalyst
