公开(公告)号：EP2599546A4

公开(公告)日：2014-04-23

申请号：EP11812482

申请日：2011-07-26

申请人： TOTO LTD ,  DAIICHI KIGENSO KAGAKU KOGYO

发明人： NAGAE TATSUSHI ,  NAKANISHI YOSHIYUKI ,  OYAMA SOSHI ,  KOBAYASHI HIDEKI ,  TAKASAKI FUMIYUKI

IPC分类号： B01J35/02 ,  B01J21/06 ,  B01J37/08 ,  C09D1/02 ,  C09D5/16 ,  C09D7/12

CPC分类号： B01J21/16 ,  B01D53/00 ,  B01J21/066 ,  B01J35/004 ,  B01J35/006 ,  B01J35/023 ,  B01J35/1014 ,  B01J37/0215 ,  C04B41/5089 ,  C04B2111/00827 ,  C08K3/20 ,  C09D1/02 ,  C09D5/1618 ,  C09D7/61 ,  C09D7/67 ,  C04B41/4549 ,  C04B41/5041 ,  C04B41/5042

摘要： Disclosed is an inorganic material that can exhibit an excellent photocatalytic gas decomposition function while maintaining an abrasion resistance on a level that is usually required of this type of inorganic materials. The inorganic material includes an inorganic material base and a photocatalyst layer that is formed by firing and is provided on the surface of the inorganic material base, the photocatalyst layer containing: photocatalyst particles; zirconia particles having a BET specific surface area of not less than 10 m 2 /g or crystalline zirconia particles having a mean crystallite diameter of less than 20 nm; and an alkali silicate. The inorganic material including the photocatalyst layer exhibits a high photocatalytic gas decomposition function while maintaining an abrasion resistance on a level that is usually required of this type of inorganic materials.