Air purification method using a photocatalyst and a method for manufacturing the same, and the photocatalyst containing carbon nitride

摘要

Being something which designates the photocatalyst where this invention, being cheaper than former ones, furthermore is obtained with safe manner, possesses visible optical responsiveness, and that its production manner is offered as purpose, as for the photocatalyst which possesses the visible optical responsiveness of this invention, alkali extraction or the Acid treating the powder of graphite condition nitriding carbon, it is something which features that it designates the powder which can as the active ingredient. As for alkali extraction or the Acid treatment in this inventing, in the alkaline aqueous solution or in the acidic aqueous solution it is more desirable to do with heating treatment. As for the visible optical responsiveness photocatalyst which is obtained with manner of this invention, as for the specific surface it is above 20m/g, optical activity improves largely.