| abstract |
Disclosed is a porous silica capable of effectively deodorizing odors such as methyl mercaptan, hydrogen sulfide, and nonenal, which are difficult to deodorize with a porous silica containing no metal. SOLUTION: Porous silica containing particles in which primary pores are formed, wherein the particles contain a metal-containing substance having a particle size of 1 to 100 nm, and a specific surface area is 500 m 2 / g or more. Porous silica. [Selection figure] None |