Patent ID: 6368668
Filing Date: 2002-04-09
Classification: B01J,C03C,C04B,C23C

Abstract:
A process for producing a functional material having photocatalytic activity, comprising the steps of: coating a photocatalyst coating composition comprising a photocatalytic metal oxide and/or a precursor of the photocatalytic metal oxide onto the surface of a substrate; andrapidly heating the surface of the coated substrate to fix the photocatalytic metal oxide onto the surface of the substrate, characterized in that: the rapid heating is carried out by a heating means provided with a heating element having a heating value per unit area of not less than 120 MJ/m2hr, and the distance between the heating element and the surface of the substrate is 5 to 300 mm, and the rapid heating is carried out for 2 to 60 seconds.